thermistor
Definition
Noun: A thermistor is a type of resistor whose electrical resistance changes significantly and predictably with changes in its temperature. It is constructed from semiconductor materials.
Usage
A thermistor is used as a sensor to measure or monitor temperature, or to provide temperature compensation in electronic circuits. * The circuit uses a thermistor to monitor the battery temperature. * To ensure accurate readings, the device's thermistor must be in direct contact with the surface.
Advanced Usage
- NTC (Negative Temperature Coefficient) Thermistor: A thermistor whose resistance as its temperature increases. This is the most common type.
- An NTC thermistor is often used in inrush current limiters.
- PTC (Positive Temperature Coefficient) Thermistor: A thermistor whose resistance as its temperature increases.
- A PTC thermistor can act as a self-resetting fuse in a circuit.
Variants and Related Words
- Thermistor Probe: A thermistor housed in a protective casing (like metal or glass) for practical use in measurement.
- The thermistor probe was inserted into the liquid to measure its temperature.
Synonyms
- Thermal Resistor: A direct descriptive synonym.
- Temperature-Dependent Resistor: A phrase describing its function.
Related Technical Terms
- Sensor: A device that detects or measures a physical property (like a thermistor measures temperature).
- Transducer: A device that converts one form of energy to another (a thermistor converts thermal energy into a change in electrical resistance).
Noun
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a semiconductor device made of materials whose resistance varies as a function of temperature; can be used to compensate for temperature variation in other components of a circuit
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