What are the sensor and its types?

Question

Accepted Answer

Sensors are devices that detect and respond to physical stimuli and convert them into electrical signals.

There are various types of sensors such as temperature sensors, pressure sensors, proximity sensors, motion sensors, light sensors, etc.
Temperature sensors measure the temperature of an object or environment and include thermocouples, RTDs, and thermistors.
Pressure sensors measure the pressure of gases or liquids and include piezoresistive, capacitive, and piezoelectric sensors.
Proximity sensors detect the presence of nearby objects and include inductive, capacitive, and ultrasonic sensors.
Motion sensors detect movement and include accelerometers, gyroscopes, and magnetometers.
Light sensors detect the intensity and wavelength of light and include photodiodes, phototransistors, and photoresistors.
Other types of sensors include humidity sensors, gas sensors, pH sensors, and flow sensors.

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