Final answer:
A thermistor is a heat detector that changes resistance with temperature. Used in various applications, they are distinct from thermocouples, thermostats, and thermal imaging cameras.
Step-by-step explanation:
A type of heat detector that changes resistance with changes in temperature is called a thermistor. Thermistors are a kind of semiconductor crystal which have resistance that varies significantly with temperature. Commonly used in thermometers, the resistance of a thermistor is measured to determine temperature.
This property makes them very effective for precision temperature measurements and temperature-dependent control systems. Unlike thermocouples, which generate a voltage related to temperature difference, or thermostats, which are used to maintain a set temperature, thermistors simply change their resistance with temperature changes.
Thermal imaging cameras employ thermography to detect radiant heat and acknowledge temperature differences on surfaces, which is a different principle.
A type of heat detector that changes resistance with changes in temperature is called a thermistor. Thermistors are resistors whose resistance changes depending on temperature. They are often used in thermometers and temperature measurement devices.