There needs to be a procedure alignment
The sensor is a kind of detection device, which can feel the measured information, and can transform the felt information into electrical signals or other required forms of information output according to certain rules, so as to meet the requirements of information transmission, processing, storage, display, recording and control.
Characteristics of sensors include miniaturization, digitization, intelligence, multi-function, systematization and networking. It is the first stage to realize automatic detection and control. With the existence and development of sensors, objects have senses of touch. Taste and smell, and gradually become alive. Generally, according to its basic perception function, it can be subdivided into ten categories: thermal sensor, light sensor, gas sensor, force sensor, magnetic sensor, moisture sensor, sound sensor, radiation sensor, color sensor and taste sensor.