A New Underwater Acoustic Sensor Based on Fiber Bragg Grating Packaged with Polymer Material
| Autor: | Yi Chuan Wang, Zhi Zhong Li, Wei Guo Dai, Yuan Zheng |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Optical fiber Materials science Orders of magnitude (temperature) business.industry Mechanical Engineering Polymer Condensed Matter Physics Laser law.invention Optics chemistry Fiber Bragg grating Mechanics of Materials law Fiber optic sensor General Materials Science Underwater business Intensity modulation |
| Zdroj: | Materials Science Forum. :926-929 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.663-665.926 |
| Popis: | A new kind of passive underwater acoustic sensor based on fiber Bragg grating is reported. The pressure sensitivity of the sensor is enhanced three orders of magnitude being packaged with polymer material, which is a foundation for underwater acoustic detection. An intensity modulation scheme is adopted to realize high-accuracy detection due to the extra-narrow line-width laser. The experimental results show that the sensor’s noise-limited pressure detection resolution is about 61dB (0dB＝1μPa/ Hz ) at 500 Hz, which satisfies the application of underwater target detection. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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