Research of variable-frequency big current calibration

Xiaoding Huang; Yazhen Tong; Jianzhen Cai; Jianting Zhao; Xin Zhang

doi:10.1117/12.2514781

7 March 2019 Research of variable-frequency big current calibration

Xiaoding Huang, Yazhen Tong, Jianzhen Cai, Jianting Zhao, Xin Zhang

Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 110534L (2019) https://doi.org/10.1117/12.2514781
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China

Abstract

Measuring Variable-frequency big current has a great technical difficulty, you first need transfer Variable-frequency big current to small current is easy to measure, and then transfer variable frequency small current to a voltage. In this paper we uses a zero flux current transformer transfer high current into a small current, after then use a shunt transfer alternating current to a variable frequency voltage, realizing high accuracy variable-frequency big current calibration, measurement uncertainty up to 1×10^-4,which can meet the needs of the current calibration,it has been used in many project, and achieved good results.

Citation Download Citation

Xiaoding Huang, Yazhen Tong, Jianzhen Cai, Jianting Zhao, and Xin Zhang "Research of variable-frequency big current calibration", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 110534L (7 March 2019); https://doi.org/10.1117/12.2514781

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