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1. (WO2018141502) FIBER OPTIC DETECTING APPARATUS AND METHOD FOR OPERATING SUCH A FIBER OPTIC DETECTING APPARATUS

Pub. No.:    WO/2018/141502    International Application No.:    PCT/EP2018/050309
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Tue Jan 09 00:59:59 CET 2018
IPC: G01D 5/353
G01D 5/38
Applicants: SIEMENS AKTIENGESELLSCHAFT
Inventors: ROTHS, Johannes
HOPF, Barbara
BOSSELMANN, Thomas
WILLSCH, Michael
Title: FIBER OPTIC DETECTING APPARATUS AND METHOD FOR OPERATING SUCH A FIBER OPTIC DETECTING APPARATUS
Abstract:
The invention relates to a fiber optic detecting apparatus (10), having at least one fiber (12) designed as a light guide, which has at least one first longitudinal region (14) having a first outside circumference and at least one second longitudinal region (16) connecting to the first longitudinal region (14) in the longitudinal extension direction (22) of the fiber (12), having a smaller second outside circumference compared to the first outside circumference, having at least one protective sleeve (24), in which at least the longitudinal regions (14 and 16) are received, and having at least one sensor tandem (28), which has at least one first fiber Bragg grating (30) inscribed in the first longitudinal region (14) and at least one second fiber Bragg grating (34) inscribed in the second longitudinal region (16) and is designed to detect, at a corresponding measurement point, both a temperature prevailing at the measurement point and at least one force occurring at the measurement point and having effect in the the longitudinal extension direction (22) of the fiber (12).