Sensors, Transducers

Sensors, Transducers Description:

A sensor is a device that converts non-electrical quantities such as temperature, humidity, light, magnetic fields, and sound into electrical signals. Sensors are broadly categorized into two types: physical sensors and chemical sensors. Physical sensors convert physical changes like pressure, temperature, speed, and magnetic fields into varying electrical signals. On the other hand, chemical sensors, like common gas sensors, transform minor chemical variations into electrical signals. Analogously, if human eyes, ears, and skin are considered physical sensors, then the tongue and nose would be akin to chemical sensors. This discussion highlights some prevalent types of sensors, including gas sensors, pyroelectric infrared sensors, Hall sensors, and thermocouples.

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