现代电子技术2011，Vol.34Issue(12)：152-153,156,3.
利用波形换算判断交流电压表的检波方式
Demodulation of AC Voltmeter Judged by Waveform Conversion
摘要
Abstract
In order to confirm the demodulation method of an unknown AC voltmeter, a new method of judging the demodulation method of AC voltage is proposed based on the waveform conversion method and its applicable scope. Connecting Sine wave and cosine wave signal to the AC voltmeter, then adjusting signal amplitude to make the indicating value of voltmeter equal, keeping the two types of signal constant, and measuring their effective values, mean values and peak values based on the indicating value. If their peak values ate equal, the demodulation method is peak detection; if their mean value is the same, the demodulation method is mean value detection; in the event of equal effective values, the demodulation method is effective value detection. Through a specific experiment, the demodulation method is proved to be simple and feasible, so a new way that judging the demodulation of AC voltmeter is supplied.关键词
波形换算/定度系数/交流电压表/检波方式Key words
waveform conversion/ scale coefficient/ AC voltage ammeter/ demodulation method分类
信息技术与安全科学引用本文复制引用
马美娟..利用波形换算判断交流电压表的检波方式[J].现代电子技术,2011,34(12):152-153,156,3.基金项目
菏泽学院自然科学基金项目(XY09WLOZ) （XY09WLOZ）
山东省高等学院实验技术基金资助课题(S04W138) （S04W138）
