一种基于谐振原理的快速电容量测量方法  

A Fast Method for Measuring Capacitor Based on Resonance Priciple

作　　者：王胜恩[1] 杨钊[2] 张根道[2] 苏彦莽[1] 

机构地区：[1]河北工业大学电气信息学院,天津300130 [2]河北工业大学管理学院,天津300130

出　　处：《河北工业大学学报》2001年第4期97-101,共5页Journal of Hebei University of Technology

摘　　要：采用Ｃ－Ｔ电路，将电容量Ｃ转换成与之对应的振荡周期Ｔ，经缓冲电路、整形电路后送入ＣＰＵ，进行测量及数据处理．可以直接用数字显示测量结果．本文介绍了该测量方法的硬件和软件设计，同时对测量误差的产生原因作了扼要分析．Capacitor is one of components widely used in circuit and its precision can affects directly the performance of the circuit. The method for measuring the value of capacitor introduced in this paper adopts C-T circuit, which can translate value of capacitor to oscillation cycle and transmit value of capacitor to CPU to measure and process data through buffer circuit and filter circuit. The circuit can also show directly the measuring result. In the paper,not only is the design of hard ware and soft ware presented, but also the cause of measuring error is analyzed.

关 键 词：单片机 电容量 振荡周期 测量 误差 谐振原理 

分 类 号：TM934.2[电气工程—电力电子与电力传动]