What can a thermistor be used for?
Thermistors are used as temperature sensors. They can be found in every day appliances such as fire alarms, ovens and refrigerators. They are also used in digital thermometers and in many automotive applications to measure temperature.
What are the practical advantages of thermistor?
They are more sensitive than other temperature sensors. High sensitivity allows them to work well over a small temperature range. They’re low cost and therefore cheap to replace. They provide a fast response.
Which thermistor is most commonly used?
NTC thermistors
NTC thermistors are the most commonly used (especially the 10KΩ NTC thermistor) and along with an addition series resistor, RS can be used as part of a simple potential divider circuit. Thus changes to its resistance due to changes in temperature, produces a temperature-related output voltage.
Where is NTC thermistor used?
NTC thermistors are used as ICLs (inrush current limiters) to protect circuits of electrical and electronic devices against inrush currents easily and effectively.
How are thermistors used in cars?
Thermistor-based temperature sensors have been used in automotive applications since the late 1940’s to send signals to gauges and later to electronic control modules. Thermistor based temperature sensor for high temperature applications (1000°C), such as exhaust gas and catalytic converter temperature sensing.
Which of the following is a practical application of thermistors *?
A thermistor finds its application in fire alarm applications, Automotives, and Food handling and processing. Alongside this thermistors are used in industrial electronics.
Which of the following is a practical application of thermistors?
How are thermistors used in fire alarms?
The thermistor method of detecting fire requires heat to be the only force necessary for activation. Thermistors are set to detect temperatures, and when temperatures are higher than the designated threshold the alarm will sound. There is no need for any smoke to be present, which lessens the amount of false alarms.
Which type of thermistors are used for instrumentation?
NTC thermistors are the most common type available for use. The defining characteristic of this thermistor is that its resistance decreases as temperature increases.
What is the main reason behind using NTC thermistor?
NTC thermistors are resistors with a negative temperature coefficient, which means that the resistance decreases with increasing temperature. They are primarily used as resistive temperature sensors and current-limiting devices.
What are thermistors in cars?
Your car is equipped not with a thermometer but with a thermistor. Thermistors work in a similar manner to thermometers, but rather than using a liquid like mercury, thermistors measure the change in electrical current as a result of heat added or taken away.