한국조명전기설비학회:학술대회논문집 (Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference)
- 한국조명전기설비학회 2002년도 학술대회논문집
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- Pages.325-328
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- 2002
광섬유 Mach-Zehnder 간섭계를 이용한 부분방전 초음파 검출특성
Ultrasonic-detecting Characteristics by Partial Discharge using the Fiber Mach-Zehnder Interferometerin Insulating Oil
초록
The partial-discharge(PD) is accompanied by physical and chemical phenomena, such as heat, light, noise, gas, chemical transformation, electric current, and electromagnetic radiation. The PD can be detected by measuring one of these changes. Although some techniques are employed in this purpose, several obstacles interfere with an on-line measurement. Now a fiber-optic sensor for detecting ultrasonics is suggested for the on line measurement system with high accuracy. In this paper, an optical fiber sensor utilizing the principal of Mach-Zehnder interferometer was proposed to detect the discharge signal.
키워드