本文讨论利用压电音叉作为频率元件的频率制远动装置的设计方法。在频率制远动装置中使用压电音又有下列四个优点:(1)压电音叉的频率稳定性高,压电音叉滤波器的选择特性尖锐,需要一定的起振和停振时间,所以,不易接受脉冲干扰;(2)响应速度比较快;(3)使用寿命长;(4)由于在音频频率范围中使用,所以只要用一对电话线就可以对多个对象实现远距离操作和测量。本文的最后,介绍了一个设计实例。 This article discusses the design of a frequency-dependent teleconverter using a piezoelectric tuning fork as a frequency component. The use of piezoelectric tone in frequency remote devices has the following four advantages: (1) high frequency stability of the piezoelectric tuning fork, piezoelectric tuning fork filter sharp selection characteristics require some start-up and stop-vibration time, So it is not easy to accept pulse interference; (2) faster response; (3) long service life; (4) due to the use of the audio frequency range, so long as the use of a pair of telephone lines can achieve long-distance operation of multiple objects And measurement. At the end of this article, we introduce a design example.