A high precision calibration setup for low-current meters in the range of 10 pA to 1 fA

被引：3

作者：

Kim, Wan-Seop ^{[1
]}

Kim, Mun-Seog ^{[1
]}

Kim, Kyu-Tae ^{[1
]}

Chong, Yonuk ^{[1
]}

Kim, Han-Jun ^{[1
]}

Kim, Myungsoo ^{[1
]}

Tauscher, H. Norbert ^{[2
]}

机构：

[1] Korea Res Inst Stand & Sci, 1 Doryong Dong, Taejon, South Korea

[2] Physikalisch Tech Bundesanstalt, Braunschweig, Germany

来源：

2008 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS DIGEST | 2008年

关键词：

D O I：

10.1109/CPEM.2008.4574801

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A low DC current source based on the method of charging a capacitor using a linear voltage ramp was built for the calibration of picoammeters and the metrological features of the setup were tested. The measurement uncertainty was improved by offset current compensation and a galvanic isolation between the personal computer and the ramp generator via opto-coupling. Using this setup, a low-current meter was calibrated in the range from 10 pA to 1 fA with an uncertainty of 3 x 10(-5) to 6 x 10(-2).

引用

页码：358 / +

页数：2

共 17 条

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