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Multi-point Acoustic Sensing System Using Coherent Phase Detection

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Abstract

A multi-point acoustic sensing system with capacity up to 248 is proposed. The sensitivity of -131.5dB ±1.5dB re 1rad/μPa in 2.4k-6kHz is achieved in a prototype system with graphene diaphragm based fiber sensors.

© 2018 The Author(s)

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