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Thermostat und Thermometer sind zwei Geräte, die in der Temperaturmessung und -kontrolle weit verbreitet sind. Dieser Artikel soll die Unterschiede zwischen diesen beiden Geräten diskutieren.

Thermometer ist ein Gerät zur Messung der Temperatur eines Objekts oder des Temperaturgradienten zwischen zwei Objekten (Punkten). Es gibt verschiedene Formen von Thermometern. Quecksilberglasthermometer sind die kommerziell am häufigsten verwendete Art von heute. Das Prinzip des Quecksilberglasthermometers ist die Temperaturausdehnung von Materialien. Das Quecksilberglasthermometer besteht aus einem Kapillarrohr mit einem Vakuum im Inneren und einem mit Quecksilber gefüllten Kolben, der an einem Ende befestigt ist. Wenn die Temperatur des Quecksilbers erhöht wird, wird es expandieren, was eine Höhe in der Kapillarröhre anzeigt. Diese Höhe wird als Maß für die Temperatur genommen. Die Wand der Glühbirne ist extrem dünn, um den Temperaturgradienten zwischen Quecksilber und dem Objekt zu minimieren, wodurch die Zeit bis zum Gleichgewicht reduziert wird. Die Menge an verwendetem Quecksilber ist sehr gering; dadurch ist der Temperaturabfall aufgrund der Absorption von thermischer Energie minimal. Das Kapillarrohr ist sehr dünn, so dass eine kleine Änderung des Volumens eine große Änderung der Quecksilberhöhe bewirkt und dadurch die Ablesung genauer macht. Andere übliche Arten von Thermometern sind Thermoelemente, Konstantvolumengasthermometer und Siliziumbandlückensensoren. Auflösung ist eine wesentliche Eigenschaft eines Thermometers. Die Auflösung eines Thermometers zeigt die minimale Temperaturdifferenz an, die mit dem Thermometer gemessen werden kann. Andere bemerkenswerte Aspekte sind Genauigkeit, Wärmeabsorption, Ansprechzeit, Reproduzierbarkeit, Erholungszeit, Kosten und Mobilität.Barometer vs Thermometer Thermometer und Barometer sind wissenschaftliche Geräte zur Messung von Temperatur und Luftdruck beziehungsweise. So viel ist vielleicht

Thermostat ist ein Gerät zur Temperaturregelung eines Systems. Ein Thermostat-System besteht aus einem Temperatursensor, Wärmeerzeuger und manchmal einem Kühlsystem. Die Funktionsweise des Thermostats ist wie folgt.Domestic water and steam based central heating systems have traditionally been controlled by bi-metallic strip thermostats, and this is dealt with later in this article. Purely mechanical control has been localised steam or hot-water radiator bi-metallic thermostats which regulated the individual flow. However, thermostatic radiator valves (TRV) are now being widely used.On many automobile engines, including all Chrysler Group and General Motors products, the thermostat does not restrict flow to the heater core. The passenger side tank of the radiator is used as a bypass to the thermostat, flowing through the heater core. This prevents formation of steam pockets before the thermostat opens, and allows the heater to function before the thermostat opens. Another benefit is that there is still some flow through the radiator if the thermostat fails.Depending on what is being controlled, a forced-air air conditioning thermostat generally has an external switch for heat/off/cool, and another on/auto to turn the blower fan on constantly or only when heating and cooling are running. Four wires come to the centrally-located thermostat from the main heating/cooling unit (usually located in a closet, basement, or occasionally in the attic): One wire, usually red, supplies 24 volts AC power to the thermostat, while the other three supply control signals from the thermostat, usually white for heat, yellow for cooling, and green to turn on the blower fan. The power is supplied by a transformer, and when the thermostat makes contact between the 24 volt power and one or two of the other wires, a relay back at the heating/cooling unit activates the corresponding heat/fan/cool function of the unit(s).

Conventional thermostats are example of “bang-bang controllers” as the controlled system either operates at full capacity once the setpoint is reached, or keeps completely off. Although it is the simplest program to implement, such control method requires to include some hysteresis in order to prevent excessively rapid cycling of the equipment around the setpoint. As a consequence, conventional thermostats cannot control temperatures very precisely. Instead, there are oscillations of a certain magnitude, usually 1-2 °C. Such control is in general inaccurate, inefficient and high-level mechanical wear, but for components like compressors, it still has a significant cost advantage compared with more advanced ones allowing continuously variable capacity.A wax pellet driven valve can be analyzed through graphing the wax pellet’s hysteresis which consists of two thermal expansion curves; extension (motion) vs. temperature increase, and contraction (motion) vs. temperature decrease. The spread between the up and down curves visually illustrate the valve’s hysteresis; there is always hysteresis within wax driven valves due to the phase transition or phase change between solids and liquids. Hysteresis can be controlled with specialized blended mixes of hydrocarbons; tight hysteresis is what most desire, however some applications require broader ranges. Wax pellet driven valves are used in anti scald, freeze protection, over-temp purge, solar thermal energy or solar thermal, automotive, and aerospace applications among many others.A thermostat exerts control by switching heating or cooling devices on or off, or by regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. A thermostat can often be the main control unit for a heating or cooling system, in applications ranging from ambient air control to automotive coolant control. Thermostats are used in any device or system that heats or cools to a setpoint temperature. Examples include building heating, central heating, and air conditioners, kitchen equipment such as ovens and refrigerators, and medical and scientific incubators.The heat pump is a refrigeration based appliance which reverses refrigerant flow between the indoor and outdoor coils. This is done by energizing a reversing valve (also known as a “4-way” or “change-over” valve). During cooling, the indoor coil is an evaporator removing heat from the indoor air and transferring it to the outdoor coil where it is rejected to the outdoor air. During heating, the outdoor coil becomes the evaporator and heat is removed from the outdoor air and transferred to the indoor air through the indoor coil. The reversing valve, controlled by the thermostat, causes the change-over from heat to cool. Residential heat pump thermostats generally have an “O” terminal to energize the reversing valve in cooling. Some residential and many commercial heat pump thermostats use a “B” terminal to energize the reversing valve in heating. The heating capacity of a heat pump decreases as outdoor temperatures fall. At some outdoor temperature (called the balance point) the ability of the refrigeration system to transfer heat into the building falls below the heating needs of the building. A typical heat pump is fitted with electric heating elements to supplement the refrigeration heat when the outdoor temperature is below this balance point. Operation of the supplemental heat is controlled by a second stage heating contact in the heat pump thermostat. During heating, the outdoor coil is operating at a temperature below the outdoor temperature and condensation on the coil may take place. This condensation may then freeze onto the coil, reducing its heat transfer capacity. Heat pumps therefore have a provision for occasional defrost of the outdoor coil. This is done by reversing the cycle to the cooling mode, shutting off the outdoor fan, and energizing the electric heating elements. The electric heat in defrost mode is needed to keep the system from blowing cold air inside the building. The elements are then used in the “reheat” function. Although the thermostat may indicate the system is in defrost and electric heat is activated, the defrost function is not controlled by the thermostat. Since the heat pump has electric heat elements for supplemental and reheats, the heat pump thermostat provides for use of the electric heat elements should the refrigeration system fail. This function is normally activated by an “E” terminal on the thermostat. When in emergency heat, the thermostat makes no attempt to operate the compressor or outdoor fan. Modern thermostatic control was developed in the 1830s by Andrew Ure (1778–1857), a Scottish chemist. The textile mills of the time needed a constant and steady temperature to operate optimally, so Ure designed the bimetallic thermostat, which would bend as one of the metals expanded in response to the increased temperature and cut off the energy supply. Line voltage thermostats are most commonly used for electric space heaters such as a baseboard heater or a direct-wired electric furnace. If a line voltage thermostat is used, system power (in the United States, 120 or 240 volts) is directly switched by the thermostat. With switching current often exceeding 40 amperes, using a low voltage thermostat on a line voltage circuit will result at least in the failure of the thermostat and possibly a fire. Line voltage thermostats are sometimes used in other applications, such as the control of fan-coil (fan powered from line voltage blowing through a coil of tubing which is either heated or cooled by a larger system) units in large systems using centralized boilers and chillers, or to control circulation pumps in hydronic heating applications.Some automobile passenger heating systems have a thermostatically controlled valve to regulate the water flow and temperature to an adjustable level. In older vehicles the thermostat controls the application of engine vacuum to actuators that control water valves and flappers to direct the flow of air. In modern vehicles, the vacuum actuators may be operated by small solenoids under the control of a central computer.

The pneumatic thermostat was invented by Warren Johnson in 1895 soon after he invented the electric thermostat. In 2009, Harry Sim was awarded a patent for a pneumatic-to-digital interface that allows pneumatically controlled buildings to be integrated with building automation systems to provide similar benefits as direct digital control (DDC).

Perhaps the most common example of purely mechanical thermostat technology in use today is the internal combustion engine cooling system thermostat, used to maintain the engine near its optimum operating temperature by regulating the flow of coolant to an air-cooled radiator. This type of thermostat operates using a sealed chamber containing a wax pellet that melts and expands at a set temperature. The expansion of the chamber operates a rod which opens a valve when the operating temperature is exceeded. The operating temperature is determined by the composition of the wax. Once the operating temperature is reached, the thermostat progressively increases or decreases its opening in response to temperature changes, dynamically balancing the coolant recirculation flow and coolant flow to the radiator to maintain the engine temperature in the optimum range. The majority of modern heating/cooling/heat pump thermostats operate on low voltage (typically 24 volts AC) control circuits. The source of the 24 volt AC power is a control transformer installed as part of the heating/cooling equipment. The advantage of the low voltage control system is the ability to operate multiple electromechanical switching devices such as relays, contactors, and sequencers using inherently safe voltage and current levels. Built into the thermostat is a provision for enhanced temperature control using anticipation. A heat anticipator generates a small amount of additional heat to the sensing element while the heating appliance is operating. This opens the heating contacts slightly early to prevent the space temperature from greatly overshooting the thermostat setting. A mechanical heat anticipator is generally adjustable and should be set to the current flowing in the heating control circuit when the system is operating. A cooling anticipator generates a small amount of additional heat to the sensing element while the cooling appliance is not operating. This causes the contacts to energize the cooling equipment slightly early, preventing the space temperature from climbing excessively. Cooling anticipators are generally non-adjustable. This type of device is generally considered obsolete as pilot lights can waste a surprising amount of gas (in the same way a dripping faucet can waste a large amount of water over an extended period), and are also no longer used on stoves, but are still to be found in many gas water heaters and gas fireplaces. Their poor efficiency is acceptable in water heaters, since most of the energy “wasted” on the pilot still represents a direct heat gain for the water tank. The Millivolt system also makes it unnecessary for a special electrical circuit to be run to the water heater or furnace; these systems are often completely self-sufficient and can run without any external electrical power supply. For tankless “on demand” water heaters, pilot ignition is preferable because it is faster than hot-surface ignition and more reliable than spark ignition.The thermostat should not be located on an outside wall or where it could be exposed to direct sunlight at any time during the day. It should be located away from the room’s cooling or heating vents or device, yet exposed to general airflow from the room(s) to be regulated. An open hallway may be most appropriate for a single zone system, where living rooms and bedrooms are operated as a single zone. If the hallway may be closed by doors from the regulated spaces then these should be left open when the system is in use. If the thermostat is too close to the source controlled then the system will tend to “short a cycle”, and numerous starts and stops can be annoying and in some cases shorten equipment life. A multiple zoned system can save considerable energy by regulating individual spaces, allowing unused rooms to vary in temperature by turning off the heating and cooling.Another consideration is the time delay of the controlled system. To improve the control performance of the system, thermostats can include an “anticipator”, which stops heating/cooling slightly earlier than reaching the setpoint, as the system will continue to produce heat for a short while. Turning off exactly at the setpoint will cause actual temperature to exceed the desired range, known as “overshoot”. Bimetallic sensors can include a physical “anticipator”, which has a thin wire touched on the thermostat. When current passes the wire, a small amount of heat is generated and transferred to the bimetallic coil. Electronic thermostats have an electronic equivalent.Digital thermostats use either a relay or a semiconductor device such as triac to act as a switch to control the HVAC unit. Units with relays will operate millivolt systems, but often make an audible “click” noise when switching on or off.

HVAC systems take a long time, usually one to several hours, to cool down or warm up the space from near outdoor conditions in summer or winter. Thus, it is a common practice to set setback temperatures when the space is not occupied (night and/or holidays). On the one hand, compared with maintaining at the original setpoint, substantial energy consumption can be saved. On the other hand, compared with turning off the system completely, it avoids room temperature drifting too much from the comfort zone, thus reducing the time of possible discomfort when the space is again occupied. New thermostats are mostly programmable and include an internal clock that allows this setback feature to be easily incorporated.

Some programmable thermostats are available to control line-voltage systems. Baseboard heaters will especially benefit from a programmable thermostat which is capable of continuous control (as are at least some Honeywell models), effectively controlling the heater like a lamp dimmer, and gradually increasing and decreasing heating to ensure an extremely constant room temperature (continuous control rather than relying on the averaging effects of hysteresis). Systems which include a fan (electric furnaces, wall heaters, etc.) must typically use simple on/off controls.

A thermostatic mixing valve uses a wax pellet to control the mixing of hot and cold water. A common application is to permit operation of an electric water heater at a temperature hot enough to kill Legionella bacteria (above 60 °C, 140 °F), while the output of the valve produces water that is cool enough to not immediately scald (49 °C, 120 °F).

With zoned systems (some residential, many commercial systems — several thermostats controlling different “zones” in the building), the thermostat will cause small electric motors to open valves or dampers and start the furnace or boiler if it’s not already running.Thermostats are used in any device or system that heats or cools to a setpoint temperature. Examples include building heating, central heating, air conditioners, HVAC systems, water heaters, as well as kitchen equipment including ovens and refrigerators and medical and scientific incubators. In scientific literature, these devices are often broadly classified as thermostatically controlled loads (TCLs). Thermostatically controlled loads comprise roughly 50% of the overall electricity demand in the United States.

When higher control precision is required, a PID or MPC controller is preferred. However, they are nowadays mainly adopted for industrial purposes, for example, for semiconductor manufacturing factories or museums. Early technologies included mercury thermometers with electrodes inserted directly through the glass, so that when a certain (fixed) temperature was reached the contacts would be closed by the mercury. These were accurate to within a degree of temperature. HVAC systems with the ability to modulate their output can be combined with thermostats that have a built-in PID controller to achieve smoother operation. There are also modern thermostats featuring adaptive algorithms to further improve the inertia prone system behaviour. For instance, setting those up so that the temperature in the morning at 7 a.m. should be 21 °C (69.8 °F), makes sure that at that time the temperature will be 21 °C (69.8 °F), where a conventional thermostat would just start working at that time. The algorithms decide at what time the system should be activated in order to reach the desired temperature at the desired time. Other thermostat used for process/industrial control where on/off control is not suitable the PID control can also makes sure that the temperature is very stable (for instance, by reducing overshoots by fine tuning PID constants for set value (SV) or maintaining temperature in a band by deploying hysteresis control.)

Electromechanical thermostats use resistance elements as anticipators. Most electronic thermostats use either thermistor devices or integrated logic elements for the anticipation function. In some electronic thermostats, the thermistor anticipator may be located outdoors, providing a variable anticipation depending on the outdoor temperature. Thermostat enhancements include outdoor temperature display, programmability, and system fault indication. While such 24 volt thermostats are incapable of operating a furnace when the mains power fails, most such furnaces require mains power for heated air fans (and often also hot-surface or electronic spark ignition) rendering moot the functionality of the thermostat. In other circumstances such as piloted wall and “gravity” (fanless) floor and central heaters the low voltage system described previously may be capable of remaining functional when electrical power is unavailable.Newer digital thermostats have no moving parts to measure temperature and instead rely on thermistors or other semiconductor devices such as a resistance thermometer (resistance temperature detector). Typically one or more regular batteries must be installed to operate it, although some so-called “power stealing” digital thermostats use the common 24-volt AC circuits as a power source, but will not operate on thermopile powered “millivolt” circuits used in some furnaces. Each has an LCD screen showing the current temperature, and the current setting. Most also have a clock, and time-of-day and even day-of-week settings for the temperature, used for comfort and energy conservation. Some advanced models have touch screens, or the ability to work with home automation or building automation systems.

It has been reported that many thermostats in office buildings are non-functional dummy devices, installed to give tenants’ employees an illusion of control. These dummy thermostats are in effect a type of placebo button. However, these thermostats are often used to detect the temperature in the zone, even though their controls are disabled. This function is often referred to as “lockout”.

A pneumatic thermostat is a thermostat that controls a heating or cooling system via a series of air-filled control tubes. This “control air” system responds to the pressure changes (due to temperature) in the control tube to activate heating or cooling when required. The control air typically is maintained on “mains” at 15-18 psi (although usually operable up to 20 psi). Pneumatic thermostats typically provide output/ branch/ post-restrictor (for single-pipe operation) pressures of 3-15 psi which is piped to the end device (valve/ damper actuator/ pneumatic-electric switch, etc.).Any leading number stands for number of contact sets, like “1NO”, “1NC” for one contact set with two terminals. “1CO” will also have one contact set, even if it is a switch-over with three terminals.

A thermostat is a regulating device component which senses the temperature of a physical system and performs actions so that the system’s temperature is maintained near a desired setpoint. A thermostat, when set to “cool”, will only turn on when the ambient temperature of the surrounding room is above the set temperature. Thus, if the controlled space has a temperature normally above the desired setting when the heating/cooling system is off, it would be wise to keep the thermostat set to “cool”, despite what the temperature is outside. On the other hand, if the temperature of the controlled area falls below the desired degree, then it is advisable to turn the thermostat to “heat”. Thermostats use different types of sensors to measure temperatures and actuate control operations. Mechanical thermostats commonly use bimetallic strips, converting a temperature change into mechanical displacement, to actuate control of the heating or cooling sources. Electronic thermostats, instead, use a thermistor or other semiconductor sensor, processing temperature change as electronic signals, to control the heating or cooling equipment.There are no standards for wiring color codes, but convention has settled on the following terminal codes and colors. In all cases, the manufacturer’s instructions should be considered definitive.

One of the first industrial uses of the thermostat was in the regulation of the temperature in poultry incubators. Charles Hearson, a British engineer, designed the first modern incubator for eggs, which was taken up for use on poultry farms in 1879.Most digital thermostats in common residential use in North America and Europe are programmable thermostats, which will typically provide a 30% energy savings if left with their default programs; adjustments to these defaults may increase or reduce energy savings. The programmable thermostat article provides basic information on the operation, selection and installation of such a thermostat.

The illustration is the interior of a common two wire heat-only household thermostat, used to regulate a gas-fired heater via an electric gas valve. Similar mechanisms may also be used to control oil furnaces, boilers, boiler zone valves, electric attic fans, electric furnaces, electric baseboard heaters, and household appliances such as refrigerators, coffee pots and hair dryers. The power through the thermostat is provided by the heating device and may range from millivolts to 240 volts in common North American construction, and is used to control the heating system either directly (electric baseboard heaters and some electric furnaces) or indirectly (all gas, oil and forced hot water systems). Due to the variety of possible voltages and currents available at the thermostat, caution must be taken when selecting a replacement device. Warren S. Johnson (1847–1911), of Wisconsin, patented a bi-metal room thermostat in 1883, and two years later sought a patent for the first multi-zone thermostatic control system. Albert Butz (1849–1905) invented the electric thermostat and patented it in 1886. A thermostat operates as a “closed loop” control device, as it seeks to reduce the error between the desired and measured temperatures. Sometimes a thermostat combines both the sensing and control action elements of a controlled system, such as in an automotive thermostat. The word thermostat is derived from the Greek words θερμός thermos, “hot” and στατός statos, “standing, stationary”.

“Well, isn’t that’s sweet,” you may be thinking, “but I’m not dealing with a toddler. I am dealing with my boss/my client/my teenager and I don’t think you’re happy-talk is going to work with them.”

Roger Ailes’ terrific book (love him or hate him, it’s a terrific book) “You Are the Message” is where I got the phrase, “Be a thermostat and not a thermometer.” In other words, it doesn’t matter what the ‘temperature’ is of the person you’re dealing with—they may well be furious—but you need to remain at 70 degrees and sunny. Because even if ratcheting up your crazy to match their crazy feels good in the moment—and you get your way by doing so– you will likely end up feeling badly about it later on and/or alienating the person you’re dealing with.MeiMei Fox is a New York Times bestselling author specializing in health, wellness and positive psychology. As a writer and life coach, she helps people align careers with their life purpose.

I’m an executive coach, author, and international speaker with a passion for helping professional women gain the visibility and credibility they need to have a fulfilling career. I work with high achieving women in corporate settings who want to move up and assume leadership positions I help them navigate the workplace politics and get the promotions they deserve.Melissa has over 20 years of business experience with large and small corporations, government, and not-for-profit industries while specializing in Internal Controls, corporate accounting, budgets, financial reporting, corporate & personal tax, audit, and SR&ED.

I am president of Ventureneer, which specializes in defining and eliminating problems that hold underrepresented entrepreneurs back, especially minorities and women. Our work provides clients with branded research, training and content opportunities that generate thought-leadership, visibility, sales, and brand loyalty. I am a WE NYC and digitalundivided mentor as well as an advisory board member of Million Dollar Women, Women Startup Lab, and Aleri Research..

I’m a working model, international speaker, author and founder of Ready2Roar. For the past 5 years, I’ve studied how individuals pivot in their careers. Additionally, I successfully defended my dissertation making me a Doctor of Education in Organizational Leadership. My dissertation was on the art of pivoting. I’m the host the Embrace the Pivot Podcast. My 15-year journey in the Sports and Entertainment industry includes assisting Hollywood agents and former NBA players, helping manage an HBO boxer and involvement with the 2014 NYNJ Super Bowl. I have experienced many highs and lows being an entrepreneur. I take all my experiences, learn from them and help others bounce forward and embrace their pivots.

Melissa Houston is the author of Cash Confident: An Entrepreneur’s Guide to Creating a Profitable Business, and the founder of She Means Profit. Melissa is a Certified Professional Accountant (CPA) and a Business Finance Strategist, where she helps successful business owners increase their profit margins so they can put more cash in their pocket and increase their net worth.I use behavioral science to figure out why we do what we do — especially when it comes to poor health decisions. With over a decade of employee engagement consulting experience with Fortune 500 companies and an MSc in Behavioral Science from The London School of Economics, I use that experience to help bridge the gap between theory and action to maximize performance. My thoughts on employee engagement have appeared in many HR publications, such as Harvard Business Review, Workforce, HRDirector, and CorpComms Magazine. I’m currently the lead behavioral scientist at U.K. consultancy scarlettabbott. I am the author of the bestselling book “Even Better If: Building Better Businesses, Better Leaders and Better Selves.”

Dr. Cheryl Robinson with an Ed.D. in Organizational Leadership. I’ve learned to successfully pivot throughout my career in order to achieve my goals.\n\nKeep writing your life!MeiMei Fox is a New York Times bestselling author, coauthor and ghostwriter of over a dozen non-fiction books and thousands of articles for publications including Huffington Post, Self, Stanford magazine, and MindBodyGreen. She specializes in health, psychology, self-help and finding your life purpose. Fox graduated Phi Beta Kappa with honors and distinction from Stanford University with an MA and BA in psychology. She has worked as a life coach since 2009, assisting clients in developing careers that have meaning and impact. At present, she lives in Hawaii with her twin boys and the love of her life, husband Kiran Ramchandran. Follow @MeiMeiFox

Is this easy to do? Absolutely not. Is it possible? It is. How is it possible? My personal formula is with the small folk is take a deep breath, open eyes and mouth as wide as I can, and say—with cartoon levels of flabbergast—“What is this crazy talk?”I’m finding that taking the time to do what I love to do helps me… gardening, scrapbooking, or drawing/painting maybe. My kids benefit from coming alongside me, and enjoying the tranquility and comradery we share as we work on something creative together, yet on our own (me doing my thing while child does his/her own work).Another homeschooling friend and I swap kids every other Thurs. from noon to dinner-time. So, once a week, we each have about five hours completely to ourselves, in the middle of the day, for whatever we want to get done (or to just totally veg!). It’s been a VERY good arrangement. The kids enjoy it too!Charlotte Mason recognized that mothering is a demanding job — and especially when you add schooling into the mix. She knew the importance of being a thermostat (though she used the phrase “always serene”, probably because she hadn’t heard my husband’s word picture :-). But more than that, she gave some suggestions for helping us moms keep that emotional margin that is so essential to creating the atmosphere you want your children to absorb.“It is not for nothing that the old painters, however diverse their ideas in other matters, all fixed upon one quality as proper to the pattern Mother. The Madonna, no matter out of whose canvas she looks at you, is always serene. This is a great truth, and we should do well to hang our walls with the Madonnas of all the early Masters if the lesson, taught through the eye, would reach with calming influence to the heart. Is this a hard saying for mothers in these anxious and troubled days? It may be hard, but it is not unsympathetic. If mothers could learn to do for themselves what they do for their children when these are overdone, we should have happier households. Let the mother go out to play! If she would only have courage to let everything go when life becomes too tense, and just take a day, or half a day,

Education is an Atmosphere. The ideas that rule your life make up a large part of your child’s learning and shaping as he or she grows up in your home. Next time we’ll move on to Education is a Discipline.Now bring that word picture into our discussion of Education is an Atmosphere. Mama is often the one who sets the atmosphere of the home because she is usually the one with the children all day every day. You’ve heard the saying, “If Mama ain’t happy, ain’t nobody happy!” And I’m sure you’ve seen the difference in your children when you’re “on top of your game” or when you’re too tired to even try. We’ve all been there and done that.

Mom NEEDS to make time to go out on a date with her man! My hubby and I find that we’re usually needing this time together more than we even realize it until we’re out together. We’ve found that we enjoy day-time dates the most, dropping the kids with friends and just hanging out together all day, talking, driving, going to local flea markets or antique stores to just stroll along, holding hands and being together, maybe go out to lunch too. Now we’ve gotten to where if one child has a play date or sleepover invite, we find something for the other to do as well so we’re freed up for a date.~time in my prayer closet… when things are heating up, to step aside and reorient to that which is true and right and pure… to connect to Him… then I can regulate much better. ~warm smile~ Thermometer is a device used to measure the temperature of an object or the temperature gradient between two objects (points). There are several forms of thermometers. Mercury glass thermometers are the commercially most common type used today. The principle behind the mercury glass thermometer is the expansion of materials due to temperature. The mercury glass thermometer consists of a capillary tube with a vacuum inside and a bulb filled with mercury connected to one end. If the temperature of the mercury is increased, it will expand indicating a height in the capillary tube. This height is taken as a measurement of the temperature. The wall of the bulb is made extremely thin, to minimize the temperature gradient between mercury and the object, thereby reducing the time taken to the equilibrium. The amount of mercury used is very small; thereby the temperature drop due to the absorption of thermal energy is minimal. The capillary tube is made very thin, so that a small change in the volume will cause a large change in mercury height, thereby making the reading more accurate. Other common types of thermometers are thermocouples, Constant volume gas thermometer and silicon band gap sensors. Resolution is an essential quality of a thermometer. The resolution of a thermometer tells the minimum temperature difference that can be measured using the thermometer. Other noteworthy aspects are accuracy, thermal absorption, response time, reproducibility, recovery time, cost and mobility. The simplest form of thermostats is found in electric irons. It consists of a heating coil and a bimetal stripe, which the contact length is adjustable, connected in series with the power supply. The temperature control of the iron adjusts the gap between the bimetal stripe and the contact terminal. The bimetal strap is connected in such a way that if the contact terminal touches the bimetal strap the switch is in the “on” state. When the temperature of the system goes beyond the desired temperature, the bimetal stripe disconnects from the contact terminal, thus eliminating the current flow. When the system cools down, the bimetal strap returns to the normal state and touches the contact terminal.Thermostat and thermometer are two devices that are widely used in temperature measurements and controlling. This article intends to discuss the differences between these two devices. Thermostat is an instrument used to control the temperature of a system. A thermostat system consists of a temperature sensor, heat generator, and sometimes a cooling system. The operation of the thermostat is as follows. Randy, thank for sharing this through the leadership carnival this month! I love the analogy and think the next generation of this thought process is leaders who know their people so well that they know how and when to regulate the environment to maximize results. They know the why behind setting things to be “warmer” or “colder” because it optimizes results and they do it room by room, or person by person, instead of the whole house or organization all on the same degree.

The thermostat/thermometer analogy was originally attributed to Martin Luther King Jr in his Letter from the Birmingham Jail. “The church was not merely a thermometer that recorded the ideas and principles of popular opinion; it was a thermostat that transformed the mores of society.”I like this article. It talks of the need for one to be a pro-active leader as compared to being a re-active one. I remind myself daily of this and i find it very helpful in the situations that i undergo in my work place and life generally. Thank you We all must ensure we make the transition from thermometer to thermostat leadership style for this is one of the leadership qualities required to excel in the 21st century work environment. Thanks for post I think to be a good project manager it’s important to set the tone for your project team. If you’re a “thermostat” in that regard, then your team will take their emotional and energetic clues from you.I coached youth baseball for over 15 years so coaching has a special place in my heart. My youngest son plays basketball and is about to start his senior season in high school. Thanks, Randy, for this great post. What a brilliant metaphor for emotional intelligence. What’s powerful about it is that if someone is a thermometer they can learn to become a thermostat leader. And, from my perspective, developing greater Social + Emotional Intelligence is the way to get there. I coach girls high school basketball. Gave this to the entire team to read. I think coaching staff got as much out of it as girls. We as a staff will make a conscious effort to be thermostats and not thermometers this year.A thermostat, on the other hand, regulates the environment. It sets the desired temperature of the room and actively works to maintain it within a given range. If the temperature rises above the goal, the thermostat signals the air conditioner to crank up and cool the room down. If the temperature falls below the goal, the thermostat causes the
heater to turn on in order to warm the room up. The thermostat is intelligent in the sense it’s always monitoring the environment, and if the temperature gets too hot or cold, it decides what to do to correct the situation. I appreciated the simple and powerful imagery you used in this article. Perhaps the thermometer deserves a second look. Thermometers take subjective feelings (“it’s hot”) and quantify them (97 degrees). This function could prove invaluable depending on the type of organization you are working with. Don’t be a non-doer thermostat who try to cool things off by acting as the calming influence not by taking load off actively. Teams hate such leaders, no fun or cheers work in tense situation, just plain work works. Leaders need to go hands on with what their team can do in critical situations, otherwise no use either thermometer or thermostat, makes no difference.Thermostat leaders, however, constantly have a pulse on the morale, productivity, stress level, and environmental conditions of their team. When the temperature gets hot because the team is under pressure of a heavy workload, resources are scarce, or pending deadlines are causing stress, they cool things off by acting as the calming influence with the team. They take time to listen to the concerns of their team members and provide the necessary direction and support that’s needed to help the team achieve its goals. Thermostat leaders also alleviate pressure on their team by mixing in some lighthearted fun at opportune times.

It is an excellent idea to relate things in such a way. It has give an opportunity to search myself as where do I fit in. I think I am in the middle of both 🙂

I couldn’t agree with you more Jamie! Developing social and emotional intelligence is crucial for leaders in order for them to have the self-awareness to manage in a constantly changing environment.What a fantastic question to ask someone when beginning a working relationship. Knowing which instrument they share similarity is important to know. Thanks for sharing. Glad i found this.

When it comes to leadership, are you a thermostat or a thermometer? Mark, my friend and colleague, posed that odd question to me this week. He went on to explain the difference between the two.A thought experiment: drop two groups of tourists in an unfamiliar environment. Give one group a tour guide. Give everyone in the other group a smartphone with google maps and yelp. The tour guide could be seen as a thermostat: guiding the group toward whatever end he deems desirable. The smartphones could be seen as a thermometer: it simply gives information to the group and lets each individual regulate his/her own behavior. Who’s to say which approach is superior?

Thermometer leaders react to their surroundings. When the tension gets high and people are on edge, these leaders are often seen losing their cool. They become irritable, harsh, demanding, critical, impatient, and maybe even lose their temper and yell or curse. Thermometer leadership doesn’t inspire trust and commitment with people, it erodes it.

A thermometer reflects the temperature of the environment. It simply reacts to what’s happening around it. If the temperature is hot, it tells you so. If it’s cold, the thermometer reflects that reality as well. It’s a dumb instrument in the sense it doesn’t contain intelligent, multipurpose functionality. It has one purpose and one purpose only.This is great wisdom to bring into parenting as well, or just into family life in general. I’m working to be the thermostat that my teenagers need me to be. Even though I can be a bit of a thermometer myself, I am blessed to be married to an excellent thermostat! Thank you for sharing this!

Fulling Management & Accounting, Inc. has provided Accounting, Bookkeeping, Business Coaching and CFO Services to organizations across the country since 2000. We serve industries including bioscience, medical, technology, automotive, construction, professional services and more.

Thermostats and thermometers are fundamentally different. Thermostats set the temperature while thermometers only reflect what the temperature is. “Most people are like thermometers,” says Dr. Elmore, “They tend to reflect the culture around them.” However, leaders are like thermostats. They set the social climate and emotional temperature of a group. Leaders influence rather than get influenced by others. Elmore challenges us to move from being a thermometer to a thermostat.By using this website, you agree to our use of cookies. We use cookies to provide you with a great experience and to help our website run effectively. You can view our terms of use here.

Adding value. – Leaders find a way to serve people and solve problems. They need to be able to look up from their task list and see ways to help others.As our team reflected on this question, we noted that we can influence others by giving compliments and encouragement, seeing something in a positive light, and giving grace to others. We talked about how our team is doing this and being quick to give each other a compliment or encouragement when needed. It’s so refreshing!

A thermostat, on the other hand, regulates the environment. It sets the desired temperature of the room and actively works to maintain it within a given range. If the temperature rises below a goal, the thermostat signals the air conditioner to warm up the room. It constantly scans the environment and adjusts to the goal.When it comes to managers we distinguish between two extremes: those who are in ‘love’ with their people and those who ‘hate’ their people. In the middle of that love-hate-continuum you have ‘apathy’. These are those managers who are indifferent to the people around them. Fortunately, we do not have many managers nowadays anymore who are either indifferent or even hate people around them. On the other hand, you should not fall too much in love with your people that you lose the capacity to perceive and evaluate the person and the situation in a differentiated way. The most effective managers are those who are on that love-hate-continuum placed between love and apathy. We call them ’empathetic leaders’. Those managers have the right balance between ‘proximity’ and ‘distance’ to effectively lead their organizations and their people.

LinkedIn and 3rd parties use essential and non-essential cookies to provide, secure, analyze and improve our Services, and to show you relevant ads (including professional and job ads) on and off LinkedIn. Learn more in our Cookie Policy.’Thermostat leaders’, however, are different. They possess a wide range of influencing options and are able to stay agile. They constantly anticipate and scan the morale, capability, productivity, energy level and environmental conditions of their team and proactively adjust their own behavior to stay on track. When tension rises and people are on the edge, they cool things off. They take time to listen to the concerns and hopes of their team members and provide context, coaching and support to help the team achieve its objectives. They alleviate pressure on their team by bringing in some lighthearted fun. Likewise, when complacency kicks in and work is slow, they get their teams refocused on the vision, purpose and goals or upskill their team. Thermostat leaders are much more than the eyes and ears of an organization or the external environment. Based on a clear understanding of the environment, their people, customers and themselves they initiate and facilitate effective change inside-out and are able to mobilize their team into exceptional development and performance.

Thermostat leadership is the kind of leadership that focuses on maintaining the status quo. Thermometer leadership, on the other hand, is the kind of leadership that is willing to adapt to change and take risks. Here are some pros of thermometer leadership over thermostat leadership:In conclusion, thermostat leadership is better when there is a need for stability and control, while thermometer leadership is better when there is a need for change and flexibility. Both have their own set of pros and cons, so it ultimately depends on the situation which one would be more advantageous. Have you tried using thermostat or thermometer leadership in your organization? Let us know how it worked out for you in the comments below!

Thermostat leaders are all about change. They’re constantly looking for ways to improve things and make them better. This makes them ideal leaders in situations where change is needed. On the other hand, thermometer leaders are more interested in maintaining the status quo. They’re not as likely to push for change, even if it’s necessary.

Thermostat leaders are natural motivators. They’re able to inspire those around them and get them excited about working towards a common goal. This makes them ideal leaders in situations where inspiration is needed. Thermometer leaders, on the other hand, are often more focused on themselves than on inspiring those around them.

Do you lead your business with a thermometer or thermostat? There is a big difference. In this blog post we’ll explore the pros and cons of each approach and help you decide which is best for you. Good leadership is essential to the success of any business, so it’s important to choose the right style for your organization. Let’s get started!

Thermometer leadership is defined as a leadership style in which the leader passively adapts to the environment and the changes within it. In contrast, thermostat leadership is a proactive leadership style in which the leader actively sets the tone and direction for the team or organization.

At the end of the day, thermostat leaders are all about making a difference. They’re not interested in simply maintaining the status quo – they want to make things better. This makes them ideal leaders in situations where real change is needed. Thermometer leaders, on the other hand, are content with keeping things the way they are.Thermostat leaders are often more effective than thermometer leaders because they are able to adapt their leadership style to the needs of the situation. They are also better able to motivate and inspire employees, as well as provide clear direction. However, thermostat leaders can also be more dictatorial than thermometer leaders and may be less responsive to employee concerns. In addition, thermostat leaders may have a harder time building consensus among employees.If you’re looking for a leader who is focused on effecting change, promoting innovation, and inspiring those around them, then a thermostat leader is what you need. In situations where these qualities are important, thermostat leadership is superior to thermometer leadership.Thermostat leadership is undoubtedly the more effective form of leadership. It is more innovative, creative, and effective at mobilizing people and resources. If you want to be a successful leader, you need to learn how to set the temperature, rather than simply reflecting it.

Thermostat leaders are focused on the long game. They’re not interested in quick fixes or short-term gains. Instead, they’re always thinking about how their actions will impact the future. This makes them ideal leaders for businesses or organizations that are looking to achieve long-term success.Innovation requires a certain amount of risk-taking, something that thermometer leaders are often unwilling to do. Thermostat leaders, on the other hand, are more likely to embrace new ideas and take risks. This makes them better suited for leading in situations where innovation is needed. A positive work environment is essential for any business or organization to succeed. And thermostat leaders are experts at creating positive cultures. They know how to build trust and foster teamwork while also promoting individual achievement. This makes them ideal leaders in situations where a positive culture is needed. Changing the thermostat isn’t complicated if you know where it’s located in your engine bay. In most cases, it is near the top of the engine where the top radiator hose joins the engine block. Once you have successfully located the thermostat, all that remains is to follow a few simple but essential steps:Today, we will look at how you can diagnose a bad thermostat. We will discuss its primary function, describe the symptoms of a failing thermostat, and explain how you can test or change it.While some turn to qualified mechanics for help, it is usually cost-effective to do repairs yourself. After all, any complicated issue can be simplified, and the solution broken down into easy-to-do steps.If you have experienced problems with overheating or notice liquid dripping under your car, it is a sure sign of a coolant leak. However, it is not the thermostat that’s leaking, as it contains no coolant. Instead, a gasket may be the source, preventing coolant from seeping out of the thermostat housing. Check the housing for any signs of leaks: drops, drip marks, and deposits. If you notice nothing unusual, inspect other components, as they may be the root of the issue.

Another symptom of a faulty thermostat is bizarre sounds. You may hear rumbling, boiling, or knocking coming from the radiator. All these signs point to an issue with your car’s cooling system. A car’s thermostat is a crucial component that regulates coolant flow, ensuring optimal engine temperatures. If you experience symptoms like coolant leaking or overheating, make sure to get your thermostat replaced! Every vehicle owner encounters car trouble from time to time. Whether a simple tire change or faulty spark plugs, correctly maintaining your vehicle and ensuring safety are of the utmost importance.

Overheating is the most common symptom of a failing thermostat. Due to corrosion or aging, your car’s thermostat can get stuck in a closed position. If this happens, the thermostat will not let the coolant reach the radiator, and, as mentioned above, the engine will overheat, causing severe damage.