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sensor 音标拼音: [s'ɛnsɚ] n. 传感器 传感器 sensor 传感器; 检测器 sensor 感测器 sensor n 1: any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner [synonym: {detector}, {sensor}, {sensing element}] Sensor \Sen"sor\, a. Sensory; as, the sensor nerves. [1913 Webster] quantity such as temperature, pressure or loudness and convert it into an electronic signal of some kind (e.g a voltage). Sensors are normally components of some larger electronic system such as a computer control and/or measurement system. Analog sensors most often produce a voltage proportional to the measured quantity. The signal must be converted to digital form with a {ADC} before the CPU can process it. Digital sensors most often use serial communication such as {EIA-232} to return information directly to the controller or computer through a {serial port}. (1997-04-15)
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