A Distributed Frequency Modulation Continuous Wave Fiber Stress Sensor Based on a Birefringent Sagnac Ring Configuration

Michael CAMPBELL; Gang ZHENG; Peter A. WALLACE; A. Sheila HOLMES–SMITH

doi:10.1007/BF02936007

Michael CAMPBELL, Gang ZHENG, Peter A. WALLACE, A. Sheila HOLMES–SMITH

著者情報

キーワード: stress sensor, fiber sensor, distributed sensor, polarimetric, frequency modulated continuous wave technology

ジャーナルフリー

1997 年 4 巻 1A 号 p. 114-116

DOI https://doi.org/10.1007/BF02936007

詳細

抄録

A new distributed stress sensor, based on a birefringent fiber Sagnac ring configuration and frequency modulation continuous wave technology, has been investigated. The two forward-coupled mode beams in the Sagnac ring, induced by an applied stress at any given point along the fiber length, produce a beat frequency which can be analysed to determine, simultaneously, the magnitude and position of the stress. The system has a reasonable spatial resolution of 1 m in a dynamic sensing range of 50 m.

責任著者(Corresponding author)

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