OPTICAL FIBER SENSOR METHOD FOR FABRICATION THE SAME AND VIBROMETER USING THE OPTICAL FIBER SENSOR

摘要

The present invention relates to an optical fiber sensor, a manufacturing method thereof, and a vibration system using the same.An optical fiber sensor according to an embodiment of the present invention includes an optical cable; An optical fiber drawn from the optical cable and having an optical fiber Bragg grating (FBG) formed therein; An optical fiber receiving hole extending from the optical cable receiving groove to receive the optical fiber, and a liquid coating agent applied to the optical fiber receiving hole, wherein the optical fiber receiving hole is formed in the optical fiber receiving hole, A coating agent inflow hole containing mold housing communicating with the optical fiber receiving hole from the outside so as to be infiltrated; A coating layer formed on the outer circumference of the optical fiber including the optical fiber bragg grating and on the surface of the mold housing to fill the optical fiber receiving hole and the coating agent inflow hole.;