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本文根据目前国内外生产的数字多用表中交流电压功能的几种主要转换方式的特点及其在性能指标上提供不同信息、特点,某些指标的测试及目前达到的水平等作一些介绍。国内外的数字多用表除直流电压的测量功能外,最重要的就是交流电压测量功能了。由于交流电压有频率和波形两大因素,所以它比直流电压测量问题复杂得多,要描述交流数字电压表的性能特性也增加不少。
In this paper, according to the characteristics of several main conversion methods of the AC voltage function in the digital multimeter produced at home and abroad at present and for providing some different information, characteristics, testing of some indicators and the current level of achievement in the performance index, some introduction is given. Digital multimeter at home and abroad in addition to DC voltage measurement function, the most important is the AC voltage measurement function. As the AC voltage and frequency of the waveform two factors, so it is much more complex than the DC voltage measurement problem, to describe the performance characteristics of AC digital voltmeter also increased a lot.