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基于大面积纳米层银膜片的光纤声压传感器。

Fiber-optic acoustic pressure sensor based on large-area nanolayer silver diaghragm.

作者信息

Xu Feng, Shi Jinhui, Gong Kui, Li Hefei, Hui Rongqing, Yu Benli

出版信息

Opt Lett. 2014 May 15;39(10):2838-40. doi: 10.1364/OL.39.002838.

DOI:10.1364/OL.39.002838
PMID:24978216
Abstract

A fiber-optic acoustic pressure sensor based on a large-area nanolayer silver diaphragm is demonstrated with a high dynamic pressure sensitivity of 160  nm/Pa at 4 kHz frequency. The sensor exhibits a noise limited detectable pressure level of 14.5  μPa/Hz(1/2). Its high dynamic pressure sensitivity and simple fabrication process make it an attractive tool for acoustic sensing and photo-acoustic spectroscopy.

摘要

展示了一种基于大面积纳米层银膜片的光纤声压传感器，在4kHz频率下具有160nm/Pa的高动态压力灵敏度。该传感器的噪声限制可检测压力水平为14.5μPa/Hz(1/2)。其高动态压力灵敏度和简单的制造工艺使其成为用于声学传感和光声光谱学的有吸引力的工具。

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