Sound detection monitoring in the transformer oil using fiber optic sensor

被引:1
|
作者
Lee, Jongkil [1 ]
机构
[1] Andong Natl Univ, Andong 760749, Kyungbuk, South Korea
来源
FIBER OPTIC SENSORS AND APPLICATIONS IX | 2012年 / 8370卷
关键词
Fiber optic sensor; Sagnac interferometer; Acoustic frequency spectrum; transformer oil;
D O I
10.1117/12.919441
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper it is shown that a fundamental technology of hybrid system combining Sagnac interferometer and FBG. Fiber optic sensor array, i.e. two sensors in the Sagnac loop was suggested. Fiber optic sensor array was fabricated in the transformer oil and external sound applied to the sensor directly using by piezoelectric. Tunable laser source was used as a light source. Applied sound frequency range is from 5kHz to 90kHz. From this experiment it is confirmed that fiber optic sensor using Sagnac interferometer in the transformer oil can detect applied sound frequency. In real electric transformer system suggested fiber optic sensor array can be applied to monitoring physical quantities such as internal temperature, sound pressure and vibration due to partial discharge.
引用
收藏
页数:6
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