sensor

Also known as measuring element

thumb|Different types of light sensors A sensor is often defined as a device that receives and responds to a signal or stimulus. The stimulus is the quantity, property, or condition that is sensed and converted into electrical signal.

AI overview

A sensor is a device that detects something in the world—like light, heat, or motion—and converts what it detects into an electrical signal that machines can understand and use. Sensors matter because they allow devices to perceive their environment and respond automatically, making everything from smartphones to cars work intelligently.

AI-generated from the Wikipedia summary — may contain errors.

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Commons category: Sensors

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~14 min read

Article

14 sections

Contents

Classification of measurement errors
Sensor deviations
Chemical sensor
Chemical sensor array
Biosensor
Neuromorphic sensors
MOS sensors
Biochemical sensors
Image sensors
Monitoring sensors
Electronics sensors
See also
References
Further reading

In the broadest definition, a sensor is a device, module, machine, or subsystem that detects events or changes in its environment and sends the information to other electronics, frequently a computer processor.