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本文介绍一种使用标准多模通信光纤制作的光纤声传感器。该装置可在300~3400Hz的频率范围内使用(不均匀度9dB),1000Hz时的信噪比可达43dB(0.1Pa.A计权)。
This article describes a fiber optic acoustic sensor made using standard multimode communication fibers. The device can be used in the frequency range of 300 ~ 3400Hz (non-uniformity of 9dB), signal to noise ratio of up to 43dB (0.1Pa.A weighted) at 1000Hz.