Sensor fibre for temperature, expansion and/or torsion detection in the form of a multi-core optical fibre with a fibre Bragg grating structure

摘要

The sensor fiber (1) has two light-conducting fiber Bragg grating fiber cores (2) provided with the fiber Bragg grating structure, and a common cladding (3) surrounding the fiber Bragg grating fiber cores. One or multiple discrimination- and orientation units are arranged within or on the sensor fiber for generation of a marking, which is detectable by a downstream measuring apparatus and which characterizes each individual fiber Bragg grating fiber core in a distinct manner.