Calibration method for the noninvasive current measurement of multicore cables based on two-step estimation
The noninvasive measurement of multicore cables using space magnetic field analysis has characteristics of weak signal intensity, high sensitivity, and vulnerability to environmental or elemental interference. To calibrate the hard iron bias, soft iron bias, and scale factor of magnetoresistance sen...
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| Format: | Article |
| Language: | zho |
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Science Press
2017-12-01
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| Series: | 工程科学学报 |
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| Online Access: | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.12.017 |
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| author | SONG Xian ZHANG Yong-jun NING Bei-fei WANG Wei |
| author_facet | SONG Xian ZHANG Yong-jun NING Bei-fei WANG Wei |
| author_sort | SONG Xian |
| collection | DOAJ |
| description | The noninvasive measurement of multicore cables using space magnetic field analysis has characteristics of weak signal intensity, high sensitivity, and vulnerability to environmental or elemental interference. To calibrate the hard iron bias, soft iron bias, and scale factor of magnetoresistance sensors based on noninvasive measurements for multicore cables, a two-step estimation-based calibration method was proposed. This method establishes the error-related linear matrix equations through the nonlinear transformation of the sensor output signal and undertakes nonlinear regression calculation after solving the equations, thus implementing dynamic error correction for the measurement of multicore cable current. Results show that this method can simultaneously calibrate linear and partial nonlinear errors of noninvasive current measurement devices for multicore cables. |
| format | Article |
| id | doaj-art-a67eb052a2e54fa1bff710aec2f885f7 |
| institution | OA Journals |
| issn | 2095-9389 |
| language | zho |
| publishDate | 2017-12-01 |
| publisher | Science Press |
| record_format | Article |
| series | 工程科学学报 |
| spelling | doaj-art-a67eb052a2e54fa1bff710aec2f885f72025-08-20T01:47:55ZzhoScience Press工程科学学报2095-93892017-12-0139121898190610.13374/j.issn2095-9389.2017.12.017Calibration method for the noninvasive current measurement of multicore cables based on two-step estimationSONG Xian0ZHANG Yong-jun1NING Bei-fei2WANG Wei31) Institute of Engineer Technology, University of Science and Technology Beijing, Beijing 100083, China1) Institute of Engineer Technology, University of Science and Technology Beijing, Beijing 100083, China1) Institute of Engineer Technology, University of Science and Technology Beijing, Beijing 100083, China2) Department of Mechanical Engineering, Tsinghua University, Beijing 100084, ChinaThe noninvasive measurement of multicore cables using space magnetic field analysis has characteristics of weak signal intensity, high sensitivity, and vulnerability to environmental or elemental interference. To calibrate the hard iron bias, soft iron bias, and scale factor of magnetoresistance sensors based on noninvasive measurements for multicore cables, a two-step estimation-based calibration method was proposed. This method establishes the error-related linear matrix equations through the nonlinear transformation of the sensor output signal and undertakes nonlinear regression calculation after solving the equations, thus implementing dynamic error correction for the measurement of multicore cable current. Results show that this method can simultaneously calibrate linear and partial nonlinear errors of noninvasive current measurement devices for multicore cables.http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.12.017noninvasive measurementmulticore cabletwo-step methodcalibration |
| spellingShingle | SONG Xian ZHANG Yong-jun NING Bei-fei WANG Wei Calibration method for the noninvasive current measurement of multicore cables based on two-step estimation 工程科学学报 noninvasive measurement multicore cable two-step method calibration |
| title | Calibration method for the noninvasive current measurement of multicore cables based on two-step estimation |
| title_full | Calibration method for the noninvasive current measurement of multicore cables based on two-step estimation |
| title_fullStr | Calibration method for the noninvasive current measurement of multicore cables based on two-step estimation |
| title_full_unstemmed | Calibration method for the noninvasive current measurement of multicore cables based on two-step estimation |
| title_short | Calibration method for the noninvasive current measurement of multicore cables based on two-step estimation |
| title_sort | calibration method for the noninvasive current measurement of multicore cables based on two step estimation |
| topic | noninvasive measurement multicore cable two-step method calibration |
| url | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.12.017 |
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