A New Optical Fiber Acoustic Sensor Based on Air Backing Mandrel Type Fiber Optic Hydrophone

Abstract:

We propose and demonstrate an optical fiber acoustic sensor based on air backing mandrel type fiber optic hydrophone. This novel approach to sensing sounds in the air has not been utilized before and has the advantage that the sensor doesn’t need electric power supply when it is working. To prove the feasibility of such an optical fiber acoustic sensor, we make a model and set up experiment to get the acoustic waves response curve in frequency. Because of its simple mechanical structure, the sensor is robust and shows a good application prospect.

• Periodical: Applied Mechanics and Materials (Volumes 303-306)
• Pages: 55-58
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.303-306.55
• Online since: February 2013
• Authors: Cheng Long Liu, Zi Nan Wang, Qian Qian Cheng, Hayrigul Osman, Chao Peng, Yi Yang, Zhen Rong Zhang, Zheng Bin Li
• Keywords: Frequency Response, Optical Fiber Acoustic Sensor, Optical Phase Modulation

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