HIGH SPEED FIBER BRAGG GRATING SENSOR MEASURING INSTRUMENT WITH TUNABLE LASER

摘要

PURPOSE: measuring device is provided to using variable laser mode for ultrahigh speed fiber-optic bragg grating sensor and rapidly changes wavelength due to optical power and wavelength change function to realize using wavelength-variable laser. ;CONSTITUTION: measuring device for ultrahigh speed fiber-optic bragg grating sensor includes the measuring unit of processor and optical flame detector using variable laser mode. The measuring unit of the optical flame detector, with processor. The measuring unit of the optical flame detector includes: D/A converter, variable light source, fiber-optic grating sensor, photo-coupler, photo-coupler B, photodiode and A/D converter. D/A converter is connected to processor. Variable light source is connected to D/A converter. Fiber-optic grating sensor is connected to variable light source. ;The 2012 of copyright KIPO submissions