| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that manufacturing is hard in an optical fiber sensor head, making optical interference signal output sensor signal, which needs to convert external pressure used as signal into a change of optical phase in such a way that the optical phase is made to be changed as one method by a strain of the plate surface by spirally sticking optical fiber strand on diaphragm surface. SOLUTION: The optical fiber sensor head wherein the cylinder is strained to turn its flatness varied by applying the external pressure used as signal to the cylinder with elasticity, so that the optical phase passing through it is varied by making the optical fiber undergo expansion/contraction in such a manner that a tension of the optical fiber wound on it varies. COPYRIGHT: (C)2011,JPO&INPIT |
