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Development of novel optical fiber i...

Deng, Jiangdong.

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Development of novel optical fiber interferometric sensors with high sensitivity for acoustic emission detection.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Development of novel optical fiber interferometric sensors with high sensitivity for acoustic emission detection./
Author:	Deng, Jiangdong.
Description:	152 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-09, Section: B, page: 4982.
Contained By:	Dissertation Abstracts International66-09B.
Subject:	Engineering, Electronics and Electrical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3190410
ISBN:	0542324350

Development of novel optical fiber interferometric sensors with high sensitivity for acoustic emission detection.
Deng, Jiangdong.

Development of novel optical fiber interferometric sensors with high sensitivity for acoustic emission detection. - 152 p.

Source: Dissertation Abstracts International, Volume: 66-09, Section: B, page: 4982.

Thesis (Ph.D.)--Virginia Polytechnic Institute and State University, 2004.

For the purpose of developing a new highly-sensitive and reliable fiber optical acoustic sensor capable of real-time on-line detection of acoustic emissions in power transformers, this dissertation presents the comprehensive research work on the theory, modeling, design, instrumentation, noise analysis, and performance evaluation of a diaphragm-based optical fiber acoustic (DOFIA) sensor system.

ISBN: 0542324350Subjects--Topical Terms:

626636
Engineering, Electronics and Electrical.

Development of novel optical fiber interferometric sensors with high sensitivity for acoustic emission detection.
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035 $a (UnM)AAI3190410
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100 1 $a Deng, Jiangdong. $3 1908536
245 1 0 $a Development of novel optical fiber interferometric sensors with high sensitivity for acoustic emission detection.
300 $a 152 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-09, Section: B, page: 4982.
500 $a Chair: Anbo Wang.
502 $a Thesis (Ph.D.)--Virginia Polytechnic Institute and State University, 2004.
520 $a For the purpose of developing a new highly-sensitive and reliable fiber optical acoustic sensor capable of real-time on-line detection of acoustic emissions in power transformers, this dissertation presents the comprehensive research work on the theory, modeling, design, instrumentation, noise analysis, and performance evaluation of a diaphragm-based optical fiber acoustic (DOFIA) sensor system.
520 $a The optical interference theory and the diaphragm dynamic vibration analysis form the two foundation stones of the diaphragm-based optical fiber interferometric acoustic (DOFIA) sensor. Combining these two principles, the pressure sensitivity and frequency response of the acoustic sensor system is analyzed quantitatively, which provides guidance for the practical design for the DOFIA sensor probe and system.
520 $a To meet all the technical requirements for partial discharge detection, semiconductor process technologies are applied, for the first time to our knowledge, in fabricating the micro-caved diaphragm (MCD) used for the DOFIA sensor probe. The novel controlled thermal bonding method was proposed, designed, and developed to fabricate high performance DOFIA sensor probes with excellent mechanical strength and temperature stability. In addition, the signal processing unit is designed and implemented with high gain, wide band response, and ultra low noise.
520 $a A systematic noise analysis is also presented to provide a better understanding of the performance limitations of the DOFIA sensor system. Based on the system noise analysis results, optimization measures are proposed to improve the system performance.
520 $a Extensive experiments, including the field testing in a power transformer, have also been conducted to systematically evaluate the performance of the instrumentation systems and the sensor probes. These results clearly demonstrated the feasibility of the developed DOFIA sensor for the detection of partial discharges inside electrical power transformers, with unique advantages of non-electrically conducting, high sensitivity, high frequency response, and immunity to the electro-magnetic interference (EMI).
590 $a School code: 0247.
650 4 $a Engineering, Electronics and Electrical. $3 626636
650 4 $a Physics, Acoustics. $3 1019086
650 4 $a Physics, Optics. $3 1018756
690 $a 0544
690 $a 0986
690 $a 0752
710 2 0 $a Virginia Polytechnic Institute and State University. $3 1017496
773 0 $t Dissertation Abstracts International $g 66-09B.
790 1 0 $a Wang, Anbo, $e advisor
790 $a 0247
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3190410