OPTICAL FIBER CABLE FOR DISTORTION MEASUREMENT, AND MANUFACTURING METHOD THEREOF

• Main Authors: NISHIDA TAKAHITO, NEMOTO KAZUMASA, TAKAHASHI HIROHISA, MASAOKA DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2017
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide such an optical fiber cable for distortion measurement having high reliability that a filler is filled in a metal pipe into which an optical fiber is inserted; and to provide a manufacturing method thereof.SOLUTION: In such an optical fiber cable 10 for distortion measurement that an optical fiber 13 is arranged in a metal pipe 12, the metal pipe 12 has pores 11A for filler injection on a plurality of spots distributed in its longer direction, and a filler 14 is filled in the metal pipe 12, and the optical fiber 13 is held integrally by the metal pipe 12 through the filler 14.SELECTED DRAWING: Figure 1 【課題】光ファイバが挿入された金属管内に充填材が充填された、信頼性の高い歪測定用の光ファイバケーブル及びその製造方法を提供することを課題とする。【解決手段】金属管１２内に光ファイバ１３が配されている歪測定用光ファイバケーブル１０において、金属管１２はその長手方向に分布した複数箇所に充填材注入用の孔部１１Ａを有し、金属管１２内に充填材１４が充填されていて、金属管１２が該充填材１４を介して光ファイバ１３を一体的に保持している。【選択図】図１