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1. (WO2018041855) HYDROPHONE WITH OPTIMISED OPTICAL FIBRE

Pub. No.:    WO/2018/041855    International Application No.:    PCT/EP2017/071694
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Aug 31 01:59:59 CEST 2017
IPC: G01V 1/18
G01H 9/00
Applicants: THALES
Inventors: LAUNAY, François-Xavier
LARDAT, Raphaël
Title: HYDROPHONE WITH OPTIMISED OPTICAL FIBRE
Abstract:
The invention proposes an acoustic sensor device (1) with an optical fibre, comprising a casing (10) which delimits a cavity (3) and an optical fibre sensor (2), the optical fibre sensor comprising an optical fibre (12), the optical fibre extending through the casing between two points. Advantageously, the cavity (3) comprises a mixed fluid which comprises a liquid-based fluid and microballoons, the microballoons comprising gas bubbles.