Title: Optical fiber grating sensor wave length measuring system
Application Number: 200610109382 Application Date: 2006.08.14
Publication Number: 1888834 Publication Date: 2007.01.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01J9/00;G01D18/00
Applicant(s) Name: Zhang Bihua Address:
Inventor(s) Name: Zhang Bihua
Attorney & Agent: zeng yongzhu
Abstract:
    A fiber grating wavelength measuring system consists of the DFB laser, the temperature tuning circuit, the current tuning circuit, the photo-electricity modulator, the modulating circuit, the photo-electricity detector module, the high-speed sampling circuit, the microprocessor, the display part, the branching unit and the connecting fiber. The invention is: the DFB laser measures the wavelength of the fiber grating sensor that not only reduces the cost, but also uses to examine temperature, stress of building, emergency measurement, and the entire situation fitting for the measurement of the fiber grating sensor.
Time: 6