Qiong Xiang
Electric Power Research Institute
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Publication
Featured researches published by Qiong Xiang.
Applied Mechanics and Materials | 2012
Chang Xi Yue; Enrico Mohns; Feng Zhou; Min Lei; Shu Han Zhang; Qiong Xiang
This paper describes the setup of a complex voltage ratio measurement system for the audio frequency range. A wideband two-channel digitizer and a differential analogue channel switching front-end are used as the heart of the system. The complex error, frequency response characteristics and short term stability of the system are tested in this paper. The errors range from 1×10-7 at 50 Hz to 10×10-6 at 200 kHz in ratio 1:1 test with 6 V input voltages. And errors are below ±8×10-7 and ±0.06 μrad in ratio 1:1 test with a 4V power line (50 Hz) input voltage over 64 hours. The test results and comparisons between with and without channel exchange mode confirm the remarkable improvement regarding the suppression of the static mismatch errors of the digitizer and show the usefulness of the system at 50 Hz too.
Archive | 2009
Zhang Jun; Min Lei; Shuhan Zhang; Qiong Xiang; Siqi Wang; Xiwen Chen
Archive | 2012
Feng Zhou; Min Lei; Xiaodong Yin; Qiong Xiang; Zongquan Hu
Archive | 2010
Min Lei; Qiong Xiang; Shuhan Zhang; Xiwen Chen; Siqi Wang; Zhang Jun
Archive | 2012
Changxi Yue; Min Lei; Shuhan Zhang; Qiong Xiang; Feng Zhou; Huan Wang; Quan Wang
Archive | 2011
Feng Zhou; Min Lei; Xiaodong Yin; Qiong Xiang; Zongquan Hu
Archive | 2008
Siqi Wang; Min Lei; Shuhan Zhang; Qiong Xiang; Xiwen Chen; Zhang Jun
Archive | 2010
Yushu Bao; Min Lei; Cong Qi; Siqi Wang; Qiong Xiang; Zhang Jun
Archive | 2008
Min Lei; Shuhan Zhang; Zhang Jun; Qiong Xiang; Siqi Wang
Archive | 2009
Zhang Jun; Yushu Bao; Qiong Xiang; Siqi Wang; Xiwen Chen; Min Lei; Shuhan Zhang
