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1. (WO2018222541) OPTICAL SENSING CABLE WITH ACOUSTIC LENSING OR REFLECTING FEATURES

Pub. No.:    WO/2018/222541    International Application No.:    PCT/US2018/034672
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat May 26 01:59:59 CEST 2018
IPC: G01V 1/18
G01H 9/00
G01L 1/24
Applicants: CORNING RESEARCH & DEVELOPMENT CORPORATION
Inventors: FREELAND, Riley Saunders
GIMBLET, Michael John
LAIL, Jason Clay
REGISTER, III, James Arthur
SEDDON, David Alan
Title: OPTICAL SENSING CABLE WITH ACOUSTIC LENSING OR REFLECTING FEATURES
Abstract:
A vibration sensing optical fiber cable is provided. The cable includes at least one optical fiber embedded in the cable jacket such that vibrations from the environment are transmitted into the cable jacket to the optical fiber. The cable is configured in a variety of ways, including through spatial arrangement of the sensing fibers, through acoustic impedance matched materials, through internal vibration reflecting structures, and/or through acoustic lens features to enhance sensitivity of the cable for vibration detection/monitoring.