一种新的直流电压和电流测量技术，降低了DMM负载的影响

2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2021-05-17 DOI:10.1109/I2MTC50364.2021.9460022

Emilio Torres, Carlos Monzo, F. Reverter

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引用次数: 1

摘要

本文提出了一种测量直流电压和电流的新技术，可以减少数字万用表的负载效应。当感兴趣的变量是电流(电压)时，建议将电压表(电压表)串联(并联)，而不是将电压表(电流表)和欧姆表串联(并联)在通常使用的相同两个端子上。与传统方法相比，这种新测量技术的应用将载荷效应减少了至少100倍，最多可减少500倍。

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A novel measurement technique for DC voltage and current reducing the DMM loading effects

A novel technique for the measurement of DC voltage and current that reduces the loading effects of a digital multimeter is presented in this work. When the variable of interest is a current (voltage), instead of connecting an ammeter (voltmeter) in series (parallel), it is proposed to connect a voltmeter (ammeter) and an ohmmeter in series (parallel) at the same two terminals conventionally employed. The application of this new measurement technique reduces the loading effects by a factor of at least 100 but up to 500, in comparison with those obtained in the conventional method.

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2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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