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|Title:||Gold-diaphragm based Fabry-Perot ultrasonic sensor for partial discharge detection and localization||Authors:||Zhang, Wei
|Keywords:||Engineering::Electrical and electronic engineering||Issue Date:||2020||Source:||Zhang, W., Lu, P., Ni, W., Xiong, W., Liu, D. & Zhang, J. (2020). Gold-diaphragm based Fabry-Perot ultrasonic sensor for partial discharge detection and localization. IEEE Photonics Journal, 12(3). https://dx.doi.org/10.1109/JPHOT.2020.2982460||Journal:||IEEE Photonics Journal||Abstract:||Acoustic measurement is the most widely used non-electric method to detect partial discharge (PD) signals by detect the ultrasonic waves arisen from partial discharge. To solve the shortages of low sensitivity and susceptibility to interferences, a gold diaphragm based Fabry-Perot interferometer ultrasonic sensor is proposed and experimentally demonstrated. Its high acoustic sensitivity and directional insensitivity shows great capability for PD detection and localization. Experimental results illustrate a well acoustic response from 20 kHz to 150 kHz when standard ultrasonic signals applied. The frequency range covers the acoustic frequencies derived from PD process. The ultrasonic signals from a discharge source is measured by the proposed fiber optic sensor with difference distances and incident angles. The output shows an attenuation of 1.32 dB/m and the sensor can detect weak signals as far as 3 m. The directional deviation coefficients are less than 10% for each measuring distance which exhibits directional independence. Two localization techniques with a sensor array (four sensors) are proposed and simulations are carried out to verify them feasible. The fiber-optic ultrasonic sensor may have a great potential in stability maintenance of electrical power systems due to its low cost, compact structure, environmentally robustness and simple manufacturing.||URI:||https://hdl.handle.net/10356/147099||ISSN:||1943-0655||DOI:||10.1109/JPHOT.2020.2982460||Rights:||© 2020 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. All articles accepted after 12 June 2019 are published under a CC BY 4.0 license, and the author retains copyright. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, as long as proper attribution is given.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EEE Journal Articles|
Updated on Jan 16, 2022
Updated on Jan 16, 2022
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