![]() However, it is far from enough to study natural phenomena and laws and their functions in production activities by relying solely on people's own sensory organs. In order to obtain information from the outside world, people must rely on sensory organs. Generally, it can be divided into ten categories according to its basic sensing functions: thermal sensor, light sensor, gas sensor, force sensor, magnetic sensor, humidity sensor, sound sensor, radiation sensor, color sensor and taste sensor. With the existence and development of sensors, objects have a sense of touch, taste, smell and other senses, which makes objects slowly come alive. It is the first link to realize automatic detection and automatic control. The characteristics of sensors include miniaturization, digitalization, intelligence, multifunction, systematization and networking. The sensor is a kind of detection device, which can sense the measured information and transform the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. ![]()
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