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rafi electrical components are detection devices that can sense measured information and convert the sensed information into electrical signals or other required forms of output according to specific rules, to meet requirements for information transmission, processing, storage, display, recording, and control. The existence and development of sensors have given objects senses such as touch, taste, and smell, bringing them to life; sensors are an extension of human senses. Sensors feature miniaturization, digitization, intelligence, multifunctionality, systematization, and networking. They are the primary link in achieving automatic detection and automatic