Working principle of temperature sensor

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Temperature sensors work based on the principle of detecting changes in electrical resistance, voltage, or current in response to temperature variations.

Temperature sensors can be based on various principles such as resistance temperature detectors (RTDs), thermocouples, thermistors, and infrared sensors.
RTDs work by measuring the change in electrical resistance of a metal wire as temperature changes.
Thermocouples generate a voltage proportional to the temperature difference between two junctions.
Thermistors change their resistance with temperature, providing a linear output.
Infrared sensors detect infrared radiation emitted by an object to determine its temperature.
Temperature sensors are widely used in industries, automotive, medical devices, and consumer electronics.

Working principle of temperature sensor

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