Title:
ファイバブラッググレーティングセンサを用いた変位測定装置及びその感度並びに耐久性調節方法
Document Type and Number:
Japanese Patent JP6781775
Kind Code:
B2
Abstract:
Disclosed are an apparatus for measuring a displacement using a fiber Bragg grating sensor, which is applied to a strain sensor using the fiber Bragg grating sensor, and a method of controlling sensitivity and durability of the same. The apparatus includes: a case forming an external appearance; third and fourth optical fibers having mutually different numbers of strands and installed in the case while being spaced apart from each other by a predetermined interval; and a connection unit installed between the third and fourth optical fibers and fixed at a predetermined position by tension applied to the third and fourth optical fibers, wherein the fiber Bragg grating sensor is installed to one selected from the pair of optical fibers having mutually different numbers of strands, so that measurement sensitivity and durability are controllable.
Inventors:
Lee, Gum Suk
Application Number:
JP2018563624A
Publication Date:
November 04, 2020
Filing Date:
December 20, 2016
Export Citation:
Assignee:
FB Korea Inc.
International Classes:
G01D5/353; G01B11/16; G01P15/093
Domestic Patent References:
| JP2003511671A | ||||
| JP2010500556A | ||||
| JP2008538607A |
Foreign References:
| US20160097790 |
Attorney, Agent or Firm:
Kyosei International Patent Office