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An electrical resistor with a relatively large negative temperature coefficient of resistance. Thermistors are useful for measuring temperature and gas flow or wind velocity.
A thermistor can also be called a thermal resistor. It is a semiconductor device made of materials whose resistance varies as a function of temperature. It is used to compensate for temperature variation in other components of an electronic circuit, sometimes taking the place of a fuse with its ability to limit current when overheated by an electrical fault. It is often used as part of temperature control circuitry, among its many other applications.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agocontrol of air conditioning and heating appliance via compact electonics, for one. Could extend to limits switches on, say refrigerators. There is a perhaps related product known commercially as Frigistors but I have not been able to confirm their application. Thermistor is a registered trade mark of Fenwal corporation.
jec888
It is a resistance whose resistance value changes as temperature changes. It is mainly used for simple control of heating equipment. As the temperature increases, the resistance increases or decreases, so that the current passing through the heating equipment decreases, so as to achieve the effect of controlling the temperature.
We're JYH HSU(JEC) Electronics Ltd (or Dongguan Zhixu Electronic Co., Ltd.), an electronic components manufacturer. You may Google search "JYH HSU" to find our official website.
Wiki User
∙ 11y agoA thermistor is an electronic device which allow heat energy to be changed in heat energy
Wiki User
∙ 7y agoThermistors are heat sensitive resistors. So more heat equals more resistance.
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What is a ntc thermistor?
A NTC thermistor is a temperature sensor that has a "negative temperature coefficient". That means as temperature goes up, the resistance of the device goes down over it's operating range.
What is the relationship between current and voltage in a thermistor?
V=IRR changes as a result of the change in temperature.
Operating range of ntc and ptc thermistor?
That depends on which units we are using. They are models that cover a variety of ranges.
How could a thermistor be used to determine airflow in cubic feet per minute - a thermistor measures temperature changes - how do you change that to cubic feet per minute?
You must have your foudation cubic feet per min first. Then using the thermistor measure the temperature and it should hold steady. The fluctuations in the resistance will show degradations in the airflow. More ohms the less airflow. So Temp % resistance = x Airflow =r known computed airflow =f ix= diff r/f okay. i think i understand.
What is the working principle of the thermistor?
A thermistor changes it's resistance depending on temperature. Hence Thermal-Resistor. (Thermistor) It is all to do with the crystal structure of the substance the thermistor is made of. Some increase their resistance as temperature rises, called Positive Thermal coefficient, 'PTC'. Others reduce their resistance with increasing temperature, called Negative Thermal Coefficient. 'NTC'. They can be used in a feedback loop of a simple amplifier and switch circuits, to control temperature of a device. They can be calibrated for use in a current loop, to directly measure temperature, like a thermometer. They can be used to stop surges in start up circuits, initially giving a high resistance until things warm up. Or used to apply a large current and then reduce as things warm up. (Like in the old degaussing coils on a colour CRT).
What kind of thermometer has a thermistor at its end?
A RV absorption refrigerator uses a thermistor as a thermostat. The thermistor is moved up or down to regulate the refrigerator temperature.
What is the difference between thermostat and thermistor?
one is called a thermostat and the other is called a thermistor - Ross Henderson
What is thermoresistive?
A thermistor is thermoresistive.
Is a oxygen sensor a thermistor sensor?
No
Is potentiometer and Thermistor are variable resistors. How please explain?
A: A potentiometer is a manual device to change the resistance A thermistor changes as a function of environment temperature
How do you tell if a faulty thermistor?
While some people use a much more exhaustive and precise testing procedure, a very simple test can uncover the most common problems with a thermistor: * measure the resistance of the thermistor at room temperature with an ohmmeter. If this resistance is 0 (short) or infinity (open), then something is connected incorrectly or the thermistor has been destroyed. (These are the most common problems). If that test looks good, then a followup test can uncover nearly all the remaining possible problems with a thermistor: * put icewater in a ziplock bag and press it against the thermistor. Then measure the resistance of the themistor at freezing. The two measured values of resistance are usually adequate to identify what kind of thermistor it is. If both values are practically the same, then it's not really a thermistor -- perhaps someone has accidentally substituted a resistor. If one or both values are not the expected values, perhaps someone has accidentally substituted a different kind of thermistor.
How is a thermistor used in a baby incubator?
A thermistor changes its resistance when the temperature changes. This means as the room temperature changes the current in the circuit containing the thermistor changes. This change in current is detected by the heater circuit, turning the heater on and off.
Is thermistor an input device or output device?
Output
What type of material is thermistor made of?
metal oxide
Why is a thermistor used in a fridge?
to shag yer maaw
What type of material is a thermistor made of?
metal oxide
How could you change the resistance of the thermistor?
Change its temperature.
