Pressure plate special-purpose voltmeter

The invention relates to a pressure plate special-purpose voltmeter. The pressure plate special-purpose voltmeter is characterized by comprising a host, a positive probe and a negative probe, wherein one end of the positive probe and one end of the negative probe are connected with a tested pressure...

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Bibliographic Details
Main Authors CAO DI, LYU SHUMING, JIN BIAO, HAO SHIQING, NIU CHUNJIAO, WANG TONG, WU XIN, LI XIANG, XUE XIAOFENG, LI YINGFENG
Format Patent
LanguageChinese
English
Published 21.09.2016
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The invention relates to a pressure plate special-purpose voltmeter. The pressure plate special-purpose voltmeter is characterized by comprising a host, a positive probe and a negative probe, wherein one end of the positive probe and one end of the negative probe are connected with a tested pressure plate, and the other ends of the positive probe and the negative probe, after being subjected to voltage division by resistors, are connected with a sampling circuit of the host; and the host comprises the sampling circuit, an amplification circuit, an AD conversion circuit, a microprocessor and a liquid crystal display. According to the invention, shift selection is eliminated, high input impedance is realized, insertion holes are not wrongly used, and thus measurement safety is guaranteed. Probe lines are additionally provided with high-voltage-resistant large-power resistors, when internal insulation of the pressure plate special-purpose voltmeter is broken down, the measurement safety can also be ensured, wron
Bibliography:Application Number: CN20161440658