Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ren Liang0
Gangbing Song0
Hongnan Li0
Siu Chun Michael Ho0
Date of Patent
March 29, 2016
0Patent Application Number
140765020
Date Filed
November 11, 2013
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A fiber Bragg grating (FBG) interrogation method allows for high frequency dynamic measurement. The method may utilize a broad band light source connected to the sensing elements. Each sensing element may comprise two wavelength matching FBGs, a coupler, and a photodiode. The FBG closest to the light source may attenuate the central wavelength in the transmission spectrum and thus the reflection spectrum of the second FBG. Variations in intensity of the second FBG may be measured by the photodiode and can be calibrated to the desired measurands.
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