An Optimized PZT-FBG Voltage/Temperature Sensor
The piezoelectric grating voltage sensor has garnered significant attention in the realm of intelligent sensing, attributed to its compact size, cost-effectiveness, robust electromagnetic interference (EMI) immunity, and high network integration capabilities. In this paper, we propose a PZT-FBG (pie...
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MDPI AG
2025-02-01
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| Online Access: | https://www.mdpi.com/2072-666X/16/2/235 |
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| author | Shangpeng Sun Feiyue Ma Yanxiao He Bo Niu Cheng Wang Longcheng Dai Zhongyang Zhao |
| author_facet | Shangpeng Sun Feiyue Ma Yanxiao He Bo Niu Cheng Wang Longcheng Dai Zhongyang Zhao |
| author_sort | Shangpeng Sun |
| collection | DOAJ |
| description | The piezoelectric grating voltage sensor has garnered significant attention in the realm of intelligent sensing, attributed to its compact size, cost-effectiveness, robust electromagnetic interference (EMI) immunity, and high network integration capabilities. In this paper, we propose a PZT-FBG (piezoelectric ceramic–fiber Bragg grating) voltage–temperature demodulation optical path architecture. This scheme effectively utilizes the originally unused temperature compensation reference grating, repurposing it as a temperature measurement grating. By employing FBGs with identical or similar parameters, we experimentally validate two distinct optical path connection schemes, before and after optimization. The experimental results reveal that, when the input voltage ranges from 250 V to 1800 V at a frequency of 50 Hz, the goodness of fit for the three fundamental waveforms is 0.996, 0.999, and 0.992, respectively. Furthermore, the sensor’s frequency response was tested across a frequency range of 50 Hz to 20 kHz, demonstrating that the measurement system can effectively respond within the sensor’s operational frequency range. Additionally, temperature measurement experiments showed a goodness of fit of 0.997 for the central wavelength of the FBG as the temperature increased. This research indicates that the improved optical path connection method not only accomplishes a synchronous demodulation of both temperature and voltage parameters but also markedly enhances the linearity and resolution of the voltage sensor. This discovery offers novel insights for further refining sensor performance and broadening the applications of optical voltage sensors. |
| format | Article |
| id | doaj-art-e69b2c05182545dbb403ca1869848021 |
| institution | DOAJ |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
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| series | Micromachines |
| spelling | doaj-art-e69b2c05182545dbb403ca18698480212025-08-20T02:44:56ZengMDPI AGMicromachines2072-666X2025-02-0116223510.3390/mi16020235An Optimized PZT-FBG Voltage/Temperature SensorShangpeng Sun0Feiyue Ma1Yanxiao He2Bo Niu3Cheng Wang4Longcheng Dai5Zhongyang Zhao6Electric Power Research Institute, State Grid Ningxia Power Co., Ltd., Yinchuan 750011, ChinaElectric Power Research Institute, State Grid Ningxia Power Co., Ltd., Yinchuan 750011, ChinaLiangjiang International College, Chongqing University of Technology, Chongqing 401135, ChinaElectric Power Research Institute, State Grid Ningxia Power Co., Ltd., Yinchuan 750011, ChinaLiangjiang International College, Chongqing University of Technology, Chongqing 401135, ChinaElectric Power Research Institute, State Grid Ningxia Power Co., Ltd., Yinchuan 750011, ChinaLiangjiang International College, Chongqing University of Technology, Chongqing 401135, ChinaThe piezoelectric grating voltage sensor has garnered significant attention in the realm of intelligent sensing, attributed to its compact size, cost-effectiveness, robust electromagnetic interference (EMI) immunity, and high network integration capabilities. In this paper, we propose a PZT-FBG (piezoelectric ceramic–fiber Bragg grating) voltage–temperature demodulation optical path architecture. This scheme effectively utilizes the originally unused temperature compensation reference grating, repurposing it as a temperature measurement grating. By employing FBGs with identical or similar parameters, we experimentally validate two distinct optical path connection schemes, before and after optimization. The experimental results reveal that, when the input voltage ranges from 250 V to 1800 V at a frequency of 50 Hz, the goodness of fit for the three fundamental waveforms is 0.996, 0.999, and 0.992, respectively. Furthermore, the sensor’s frequency response was tested across a frequency range of 50 Hz to 20 kHz, demonstrating that the measurement system can effectively respond within the sensor’s operational frequency range. Additionally, temperature measurement experiments showed a goodness of fit of 0.997 for the central wavelength of the FBG as the temperature increased. This research indicates that the improved optical path connection method not only accomplishes a synchronous demodulation of both temperature and voltage parameters but also markedly enhances the linearity and resolution of the voltage sensor. This discovery offers novel insights for further refining sensor performance and broadening the applications of optical voltage sensors.https://www.mdpi.com/2072-666X/16/2/235FBGPZTvoltagetemperature |
| spellingShingle | Shangpeng Sun Feiyue Ma Yanxiao He Bo Niu Cheng Wang Longcheng Dai Zhongyang Zhao An Optimized PZT-FBG Voltage/Temperature Sensor Micromachines FBG PZT voltage temperature |
| title | An Optimized PZT-FBG Voltage/Temperature Sensor |
| title_full | An Optimized PZT-FBG Voltage/Temperature Sensor |
| title_fullStr | An Optimized PZT-FBG Voltage/Temperature Sensor |
| title_full_unstemmed | An Optimized PZT-FBG Voltage/Temperature Sensor |
| title_short | An Optimized PZT-FBG Voltage/Temperature Sensor |
| title_sort | optimized pzt fbg voltage temperature sensor |
| topic | FBG PZT voltage temperature |
| url | https://www.mdpi.com/2072-666X/16/2/235 |
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