交直流转换标准对低电平交流电压标准的负载效应

CPEM 2010 Pub Date : 2010-06-13 DOI:10.1109/CPEM.2010.5543547

Sung-Won Kwon, Mun-Seog Kim, K. T. Kim, J. K. Jung

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引用次数: 1

摘要

交直流转换标准和微型电位器被广泛用于低电平交流电压标准。在交流电压低于200 mV和1 MHz的情况下，讨论了标准的输入阻抗和50-Ω负载依赖性。单元的负载依赖关系在1 MHz时达到385µV/V，使用标准校准50-Ω交流源时应纠正此负载误差。

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Loading effect of the AC-DC transfer standard for low level AC voltage standard

AC-DC transfer standard and micro-potentiometer are widely used for AC voltage standard at low level. Input impedance and 50-Ω load dependency of the standard are discussed for the ac voltage application below 200 mV and 1 MHz. The load dependency of the unit reaches 385 µV/V at 1 MHz, and this loading error should be corrected when calibrate the 50-Ω AC source using the standard.

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CPEM 2010

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