FBG sensor module, 2 axis FBG sensor module, 2 axis FBG sensor module manufacture equipment and 2 axis FBG sensor module manufacture method

摘要

PURPOSE: An FBG(Fiber Bragg Grating) sensor having a ring-shaped leaf spring fixing member, a biaxial FBG sensor having a ring-shaped leaf spring fixing member, and a manufacturing apparatus and method for the FBG sensor are provided to prevent a measurement error caused by direct contact and friction with a structure to be measured and to enable measurement of both extension and compression. CONSTITUTION: A method for manufacturing an FBG sensor having a ring-shaped leaf spring fixing member is as follows. A first fixing part(130) of a ring-shaped leaf spring(121) is fixed to a first fixing jig and a second fixing part(140) is fixed to a second fixing jig. The second fixing jig is linearly moved toward the first fixing jig so that the ring-shaped leaf spring is compressed. An optical fiber cable(160) is inserted into a slit(150) and fixed with an optical fiber fixing adhesive. The second fixing jig is linearly moved opposite to the first fixing jig after curing the adhesive so that the compression of the ring-shaped leaf spring is released.