A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid Applications
Advanced sensing and measurement techniques are key technologies to realize a smart grid. The giant magnetoresistance (GMR) effect has revolutionized the fields of data storage and magnetic measurement. In this work, a design of a GMR current sensor based on a commercial analog GMR chip for applicat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2012-11-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/12/11/15520 |
| _version_ | 1828348033669005312 |
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| author | Shan X. Wang Jun Hu Yong Ouyang Jinliang He |
| author_facet | Shan X. Wang Jun Hu Yong Ouyang Jinliang He |
| author_sort | Shan X. Wang |
| collection | DOAJ |
| description | Advanced sensing and measurement techniques are key technologies to realize a smart grid. The giant magnetoresistance (GMR) effect has revolutionized the fields of data storage and magnetic measurement. In this work, a design of a GMR current sensor based on a commercial analog GMR chip for applications in a smart grid is presented and discussed. Static, dynamic and thermal properties of the sensor were characterized. The characterizations showed that in the operation range from 0 to ±5 A, the sensor had a sensitivity of 28 mV·A−1, linearity of 99.97%, maximum deviation of 2.717%, frequency response of −1.5 dB at 10 kHz current measurement, and maximum change of the amplitude response of 0.0335%·°C−1 with thermal compensation. In the distributed real-time measurement and monitoring of a smart grid system, the GMR current sensor shows excellent performance and is cost effective, making it suitable for applications such as steady-state and transient-state monitoring. With the advantages of having a high sensitivity, high linearity, small volume, low cost, and simple structure, the GMR current sensor is promising for the measurement and monitoring of smart grids. |
| first_indexed | 2024-04-14T00:49:02Z |
| format | Article |
| id | doaj.art-9cea086cfca147c984deadd7eff87032 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T00:49:02Z |
| publishDate | 2012-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-9cea086cfca147c984deadd7eff870322022-12-22T02:21:54ZengMDPI AGSensors1424-82202012-11-011211155201554110.3390/s121115520A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid ApplicationsShan X. WangJun HuYong OuyangJinliang HeAdvanced sensing and measurement techniques are key technologies to realize a smart grid. The giant magnetoresistance (GMR) effect has revolutionized the fields of data storage and magnetic measurement. In this work, a design of a GMR current sensor based on a commercial analog GMR chip for applications in a smart grid is presented and discussed. Static, dynamic and thermal properties of the sensor were characterized. The characterizations showed that in the operation range from 0 to ±5 A, the sensor had a sensitivity of 28 mV·A−1, linearity of 99.97%, maximum deviation of 2.717%, frequency response of −1.5 dB at 10 kHz current measurement, and maximum change of the amplitude response of 0.0335%·°C−1 with thermal compensation. In the distributed real-time measurement and monitoring of a smart grid system, the GMR current sensor shows excellent performance and is cost effective, making it suitable for applications such as steady-state and transient-state monitoring. With the advantages of having a high sensitivity, high linearity, small volume, low cost, and simple structure, the GMR current sensor is promising for the measurement and monitoring of smart grids.http://www.mdpi.com/1424-8220/12/11/15520current sensinggiant magnetoresistancesensor designsmart grid |
| spellingShingle | Shan X. Wang Jun Hu Yong Ouyang Jinliang He A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid Applications Sensors current sensing giant magnetoresistance sensor design smart grid |
| title | A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid Applications |
| title_full | A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid Applications |
| title_fullStr | A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid Applications |
| title_full_unstemmed | A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid Applications |
| title_short | A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid Applications |
| title_sort | current sensor based on the giant magnetoresistance effect design and potential smart grid applications |
| topic | current sensing giant magnetoresistance sensor design smart grid |
| url | http://www.mdpi.com/1424-8220/12/11/15520 |
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