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传感器是能够把它感受到的力、温度、光、声、磁、化学等非电学量按照一定规律转化为电压、电流等电学量,用于测控、测量等,在生产和生活中有着广泛的应用.干簧管可以把感知的磁场转化为电流,光敏电阻可以把光照转化为电阻;热敏电阻可以把温度转化为电学量;霍尔元件可以把磁感应强度转化为电压这个电学量;话筒可以把声音转化为电流.传感器已经在多个领域得到广泛应用,高考试题中几乎每年都有涉及传感器的试题.有关传感器的高考题,可
Sensors are able to feel the power, temperature, light, sound, magnetism, chemistry and other non-electrical quantities in accordance with certain laws into electrical voltage, current and other electrical quantities for measurement and control, measurement, etc., in production and life has a wide range of Applications. Reed switch can sense the magnetic field into a current, the photoresistor can light into resistance; thermistor temperature can be converted into electrical quantity; Hall element can transform the magnetic flux density into the electrical voltage; the microphone can The sound into the current sensor has been widely used in many fields, nearly every year in the college entrance examination questions related to the sensor test questions about the sensor