Directional Sensitivity of a MEMS-Based Fiber-Optic Extrinsic Fabry–Perot Ultrasonic Sensor for Partial Discharge Detection

Extrinsic Fabry–Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work has mainly focused on novel structures and materials to improve the sensitivity and linear response of these sensors. However, the directiona...

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Published inSensors (Basel, Switzerland) Vol. 18; no. 6; p. 1975
Main Authors Si, Wenrong, Fu, Chenzhao, Li, Delin, Li, Haoyong, Yuan, Peng, Yu, Yiting
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 20.06.2018
MDPI
Subjects
Acoustics
Fabry–Perot
fiber-optic sensors
Fourier transforms
Interferometry
Laboratories
Localization
Microelectromechanical systems
Optics
partial discharges
Photonics
Questioning
Sensors
Ultrasonic imaging
ultrasonic sensor
United States > US
China
fiber-optic sensors
Fabry–Perot
partial discharges
ultrasonic sensor
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Abstract Extrinsic Fabry–Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work has mainly focused on novel structures and materials to improve the sensitivity and linear response of these sensors. However, the directional response behavior of an FP ultrasonic sensor is also of particular importance in localizing the PD source, which is rarely considered. Here, the directional sensitivity of a microelectromechanical system (MEMS)-based FP ultrasonic sensor with a 5-μm-thick micromechanical vibrating diaphragm is experimentally investigated. Ultrasonic signals from a discharge source with varying incident angles and linear distances are measured and analyzed. The results show that the sensor has a 5.90 dB amplitude fluctuation over a ±60° incident range and an exciting capability to detect weak PD signals from 3 m away due to its high signal–noise ratio. The findings are expected to optimize the configuration of a sensor array and accurately localize the PD source.
AbstractList Extrinsic Fabry–Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work has mainly focused on novel structures and materials to improve the sensitivity and linear response of these sensors. However, the directional response behavior of an FP ultrasonic sensor is also of particular importance in localizing the PD source, which is rarely considered. Here, the directional sensitivity of a microelectromechanical system (MEMS)-based FP ultrasonic sensor with a 5-μm-thick micromechanical vibrating diaphragm is experimentally investigated. Ultrasonic signals from a discharge source with varying incident angles and linear distances are measured and analyzed. The results show that the sensor has a 5.90 dB amplitude fluctuation over a ±60° incident range and an exciting capability to detect weak PD signals from 3 m away due to its high signal–noise ratio. The findings are expected to optimize the configuration of a sensor array and accurately localize the PD source.
Extrinsic Fabry⁻Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work has mainly focused on novel structures and materials to improve the sensitivity and linear response of these sensors. However, the directional response behavior of an FP ultrasonic sensor is also of particular importance in localizing the PD source, which is rarely considered. Here, the directional sensitivity of a microelectromechanical system (MEMS)-based FP ultrasonic sensor with a 5-μm-thick micromechanical vibrating diaphragm is experimentally investigated. Ultrasonic signals from a discharge source with varying incident angles and linear distances are measured and analyzed. The results show that the sensor has a 5.90 dB amplitude fluctuation over a ±60° incident range and an exciting capability to detect weak PD signals from 3 m away due to its high signal⁻noise ratio. The findings are expected to optimize the configuration of a sensor array and accurately localize the PD source.Extrinsic Fabry⁻Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work has mainly focused on novel structures and materials to improve the sensitivity and linear response of these sensors. However, the directional response behavior of an FP ultrasonic sensor is also of particular importance in localizing the PD source, which is rarely considered. Here, the directional sensitivity of a microelectromechanical system (MEMS)-based FP ultrasonic sensor with a 5-μm-thick micromechanical vibrating diaphragm is experimentally investigated. Ultrasonic signals from a discharge source with varying incident angles and linear distances are measured and analyzed. The results show that the sensor has a 5.90 dB amplitude fluctuation over a ±60° incident range and an exciting capability to detect weak PD signals from 3 m away due to its high signal⁻noise ratio. The findings are expected to optimize the configuration of a sensor array and accurately localize the PD source.
Extrinsic Fabry⁻Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work has mainly focused on novel structures and materials to improve the sensitivity and linear response of these sensors. However, the directional response behavior of an FP ultrasonic sensor is also of particular importance in localizing the PD source, which is rarely considered. Here, the directional sensitivity of a microelectromechanical system (MEMS)-based FP ultrasonic sensor with a 5-μm-thick micromechanical vibrating diaphragm is experimentally investigated. Ultrasonic signals from a discharge source with varying incident angles and linear distances are measured and analyzed. The results show that the sensor has a 5.90 dB amplitude fluctuation over a ±60° incident range and an exciting capability to detect weak PD signals from 3 m away due to its high signal⁻noise ratio. The findings are expected to optimize the configuration of a sensor array and accurately localize the PD source.
Author Fu, Chenzhao
Li, Delin
Yu, Yiting
Li, Haoyong
Si, Wenrong
Yuan, Peng
AuthorAffiliation 3 Shaanxi Province Key Laboratory of Micro and Nano Electro-Mechanical Systems, Northwestern Polytechnical University, Xi’an 701172, China
1 State Grid Shanghai Electric Power Research Institute, Shanghai 200437, China; siwenrong@126.com (W.S.); 13512111246@139.com (C.F.)
4 Xi’an Maorong Power Equipment Co., Ltd., Xi’an 710048, China; y5anpeng@126.com
2 Key Laboratory of Micro/Nano Systems for Aerospace (Ministry of Education), Northwestern Polytechnical University, Xi’an 710072, China; delinli@mail.nwpu.edu.cn (D.L.); lyhaoyong@mail.nwpu.edu.cn (H.L.)
AuthorAffiliation_xml – name: 1 State Grid Shanghai Electric Power Research Institute, Shanghai 200437, China; siwenrong@126.com (W.S.); 13512111246@139.com (C.F.)
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– name: 4 Xi’an Maorong Power Equipment Co., Ltd., Xi’an 710048, China; y5anpeng@126.com
– name: 2 Key Laboratory of Micro/Nano Systems for Aerospace (Ministry of Education), Northwestern Polytechnical University, Xi’an 710072, China; delinli@mail.nwpu.edu.cn (D.L.); lyhaoyong@mail.nwpu.edu.cn (H.L.)
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Keywords fiber-optic sensors
Fabry–Perot
partial discharges
ultrasonic sensor
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Snippet Extrinsic Fabry–Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work...
Extrinsic Fabry⁻Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work...
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StartPage 1975
SubjectTerms Acoustics
Fabry–Perot
fiber-optic sensors
Fourier transforms
Interferometry
Laboratories
Localization
Microelectromechanical systems
Optics
partial discharges
Photonics
Questioning
Sensors
Ultrasonic imaging
ultrasonic sensor
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Title Directional Sensitivity of a MEMS-Based Fiber-Optic Extrinsic Fabry–Perot Ultrasonic Sensor for Partial Discharge Detection
URI https://www.ncbi.nlm.nih.gov/pubmed/29925782
https://www.proquest.com/docview/2108718008
https://www.proquest.com/docview/2126647247
https://www.proquest.com/docview/2057869821
https://pubmed.ncbi.nlm.nih.gov/PMC6022144
https://doaj.org/article/1f6015e49f32401fabdb2e3f9b392453
Volume 18
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