Voltage measuring instrument with resolution of 0.01 Mu V

有0.01μV分辨率的电压测量仪

  • Inventors: LUO XIAOYING
  • Assignees: 骆晓英
  • Publication Date: July 28, 2010
  • Publication Number: CN-101788585-A

Abstract

The invention discloses a voltage measuring instrument with resolution of 0.01 Mu V. Three step panels and a sliding wire panel, three measuring panels and a measuring sliding wire panel are respectively and directly connected through conductors and not switched through switches, thereby the variation and the impact of thermoelectric power are eliminated during the measurement of the voltage measuring instrument; for each panel, the measuring panel and the substitution panel are composed of resistors with the same resistances, an auxiliary panel is not used, therefore, the volume of the whole instrument is reduced; through the shunt resistance, four range conversions are obtained, and the minimum resolution is 0.01Mu V.
一种用于直流电压测量的有0.01μV分辨率的电压测量仪,它的三只步进盘与一只滑线盘,三只测量盘与一只测量盘滑线间用导线直接连接,不通过开关切换,使电压测量仪测量时不存在变差及热电势影响,每只盘都由阻值相同的电阻组成测量盘与代换盘,都不用辅助盘,使整台仪器体积缩小;通过分流电阻,获得四个量程变换,最小分辨率为0.01μV。

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    CN-104101761-BJuly 06, 2016富阳兴远仪器仪表经营部电位差计
    CN-104237594-BFebruary 01, 2017富阳精密仪器厂一种单双臂电桥