A temperature sensor is a device that is used to measure and detect changes in temperature. It converts temperature variations into electrical signals, allowing temperature to be monitored and controlled in various applications. Types of Temperature Sensors: There are several types of temperature sensors available, including:
Thermocouples: These sensors use the principle of the Seebeck effect to measure temperature. They consist of two dissimilar metals that generate a voltage proportional to the temperature difference between their junctions.
Resistance Temperature Detectors (RTDs): RTDs are based on the principle that the electrical resistance of a metal increases with temperature. They typically use platinum as the sensing element.
Thermistors: Thermistors are temperature-sensitive resistors that exhibit a large change in resistance with temperature. They can be classified as either positive temperature coefficient (PTC) or negative temperature coefficient (NTC) thermistors.
Semiconductor-based Sensors: These sensors utilize the temperature-dependent characteristics of semiconductor materials, such as diodes or integrated circuits, to measure temperature.