使用光纤布拉格光栅的麦克风阵列

2002 15th Optical Fiber Sensors Conference Technical Digest. OFS 2002(Cat. No.02EX533) Pub Date : 2002-05-10 DOI:10.1109/OFS.2002.1000546

T. Iida, K. Nakamura, S. Ueha

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引用次数: 17

摘要

提出了一种采用光纤布拉格光栅(fbg)的光学传声器阵列。将膜片的变形转化为光纤光栅中心波长的调制。我们演示了一种四元阵列麦克风的WDM工作，以及元件麦克风的频率响应、线性度和灵敏度等性能。为了实现对大量元素的同时测量，需要开发专用的波分复用检测系统。

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A microphone array using fiber Bragg gratings

We proposed an optical microphone array using fiber Bragg gratings (FBGs). Deformation of the diaphragm was transformed to the modulation in the center wavelength of the FBG. We demonstrated, the WDM operation of a four-element array microphone as well as the performances of the element microphone such as frequency response, linearity and sensitivity. To realize a simultaneous measurement for a large number of elements, the development of a special WDM detection system is required.

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2002 15th Optical Fiber Sensors Conference Technical Digest. OFS 2002(Cat. No.02EX533)

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