一种简易数字转速表电路  

A Simple Digital Tachometer Circuit

作　　者：封元华 

机构地区：[1]江苏省南京市红卫机械厂,江苏省南京市210002

出　　处：《航空计测技术》1998年第2期10-12,24,共4页Aviation Metrology & Measurement Technology

摘　　要：介绍了一种其电路原理与脉冲计数式仪表不同的数字转速表电路。它将输入脉冲经频率一电压转换器（PVC）变换成与之成正比的直流电压，采用数字电压表显示测量结果。文中详细地论述了FVC的工作原理，分析了整机电路，最后给出了实验结果。The digital tachometer circuit, its principle is different from the pulse counter-type instrument, is described in this paper. In the circuit, input pulse is converted into DC voltage proportional to the input pulse by FVC. The test result is displayed by DVM. In the paper, the principle of FVC is discussed in detail, the over-all unit circuit is analized and the test result is given at last.

关 键 词：频率-电压转换 数字转速表 电路 转速表 航空 

分 类 号：V241.73[航空宇航科学与技术—飞行器设计]