A thermistor is a temperature-detecting device composed of a combination of metal and metal oxide semiconductor elements. Thermistors are typically found with negative high-temperature measurements in which the thermistor’s endurance decreases and, at the same time thermistor’s temperature increases. Therefore, they acquired their title and were called Thermal Resistors.
Temperature Sensors - PTC Thermistors are economical and very reliable, installed in place of sensors for measuring temperature, and struggling with a high degree of accuracy. They are found in various shapes, including a disk, bead, rod, and chip commonly embedded in epoxy gum, paint, glassed or phenolic, since they are also mounted or fixed within the system and require control and monitoring system.
How Does a Temperature Sensor Function?
The resistance of a thermistor fluctuates with temperature rather than measuring and displaying temperature, as other temperature-sensing devices do. The detecting material used in the thermistor and the media being monitored both affect how much the resistance changes. The best material for the job usually depends on whether you need to measure a solid, liquid, or gas.
Thermistor temperature is tracked by a temperature controller, which then sends a signal to a heater or cooler to manage the temperature of the sensor. Thermistors primarily function as resistive temperature sensors, but they can also be used to control an electrical current flowing through another component or device by connecting them in series with it.
What are the types of Temperature Sensors?
NTC (Negative Temperature Coefficient) Thermistors – NTC Thermistors mitigate endurance as temperature goes up; an NTC is designed to be used with a temperature detector or in combination with a circuit since an inflow current is struggling.
PTC (Positive Temperature Coefficient) Thermistors – PTC Thermistors maximize endurance since the temperature goes up. PTC thermistors are embedded in combination with the circuit and are commonly utilized as resettable fuses so that the system is safe and sound and protected from overcurrent.
What are the Applications of Temperature Sensors?
A temperature sensor is standard and efficient while functioning since they are embedded in several temperature-detecting applications, including:
- Digital Thermometers
- Vehicles to evaluate oil and coolant
- Furnaces
- Fridge-freezers
- Heating system or Cooling safety circuits.
