FBG sensor for measuring maximum strain, manufacturing method and using method

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United States of America Patent

PATENT NO 9791335
SERIAL NO

15025334

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Abstract

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The present invention relates to an FBG sensor for measuring a maximum strain of an object being measured, a method for manufacturing the sensor, and a method of using the sensor. To this end, provided is the FBG sensor for measuring a maximum strain, comprising: an optical fiber (130) having an FBG sensor (150) therein; a first metallic foil (120) contacting the optical fiber (130) on one surface thereof; a second metallic foil (120) which comes into surface-contact with the one surface; an adhesive layer (140) provided between the first and second metallic foils (100, 120); a means for measuring a residual strain of the first and second metallic foils (100, 120) through the FBG sensor (150); and a means for calculating a maximum strain on the basis of the measured residual strain and a sensitivity coefficient (Csen) obtained through experimentation.

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Patent Owner(s)

Patent OwnerAddress
KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE1 DORYONG-DONG YUSEONG-GU DAEJEON 305-340

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Ki Sun Gwangju, KR 9 27
Im, Joo Eun Daejeon, KR 1 8
Kim, Mi Hyun Daejeon, KR 59 470
Kwon, Il-Bum Daejeon, KR 3 11

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