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地震仪中动圈型换能器是使用最多的一种换能器。动圈型换能器输出电压与被测量物体的速度成正比,不能直接表示出被测物体的位置或位移量。在地震仪器中应用电容换能器则是最近几年的事。电容换能器不但换能输出电压与被测物体的位移成比例,还能直接表示出被测物体的位移量或位置。
Seismograph moving coil type transducer is the most used type of transducer. Moving coil transducer output voltage is proportional to the speed of the measured object, can not directly indicate the position or displacement of the measured object. The use of capacitive transducers in seismic instrumentation has been in recent years. Capacitive transducer not only convert the output voltage and displacement of the measured object is proportional to the measured object can also directly indicate the displacement or position.