LOCATION MEASURING DEVICE FOR FIBER BRAGG GRATING

摘要

PURPOSE: An optical fiber sensor position apparatus for improving the measuring accuracy is provided to accurately measure the distance between each optical fiber sensor in a real location and compensate the measured distance. CONSTITUTION: A location measure system measures the exact location of a discrete sensor included in an optical fiber sensor(101). The location measure system comprises a variable wavelength input unit, a modulator(112) and an optical coupler(113). The optical coupler is incident to the incident light offered from the wavelength input unit to the optical fiber sensor. The optical coupler offers the reflection light reflected to from the discrete sensor disconnect of the optical fiber sensor to the optical detector.