DISPLACEMENT MEASUREMENT DEVICE USING FIBER BRAGG GRATING SENSOR AND METHOD FOR ADJUSTING SENSITIVITY AND DURABILITY THEREOF

WIPO Patent Application WO/2018/117284

A1

The present invention relates to a displacement measurement device using a fiber Bragg grating sensor and a method for adjusting the sensitivity and durability thereof, the displacement measurement device comprising: a case forming an exterior; a third and a fourth optical fiber spaced from each other by a preconfigured distance in the case and installed to have a different numbers of strands; and a connection means installed between the third and the fourth optical fiber and fixed at a predetermined position by tensile force applied to the third and the fourth optical fiber. Therefore, when the device is applied to a deformation rate sensor using a fiber Bragg grating sensor, the fiber Bragg grating sensor is selectively installed at one of a pair of optical fibers installed to have a different number of strands, thereby obtaining the effect of adjusting the measurement sensitivity and durability of the deformation rate sensor.

JPH01219707	OPTICAL FIBER FOR TRANSMITTING ULTRAVIOLET-LIGHT ENERGY
WO/2019/059160	PLASTIC OPTICAL FIBER FOR MEDICAL DEVICE LIGHTING AND MEDICAL DEVICE LIGHTING USING SAME
JP3872048	METHOD AND APPARATUS FOR OFFERING DISPERSION COMPENSATION

LEE GEUM SUK (KR)

PCT/KR2016/014909

June 28, 2018

December 20, 2016

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FBG KOREA INC (KR)

G02B6/02; G01B11/16; G01L1/24

WO2006115511A1

2006-11-02

JP2003214907A	2003-07-30
JP2014032054A	2014-02-20
JP2011226829A	2011-11-10
KR20080025275A	2008-03-20
KR101057309B1	2011-08-16
KR100992628B1	2010-11-05

See also references of EP 3557294A4

WELL PATENT LAW FIRM (KR)

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