Title: Frequency divider adapted to optical fiber top
Application Number: 200610113626 Application Date: 2006.10.10
Publication Number: 1932442 Publication Date: 2007.03.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01C19/72;G01P9/00;H03B19/00
Applicant(s) Name: Beijing Aviation Address:
Inventor(s) Name:
Attorney & Agent: zhouchang qi
Abstract:
    The invention discloses a frequency dividing device used for the optical fibre gyro which is made up of the FPGA processor slug, the frequency dividing producer and the crystal oscillator. The CLKIN end of frequency outputted by the crystal oscillator is connected with the clock import CLKIN end of the FPGA processor. The frequency dividing producer outputs the frequency dividing coefficient to the configuration files of the FPGA processor slug and stores it in the EPROM. The invention can do the frequency dividing work of the signal, the double and three axes gyro by a FPGA combined with a crystal oscillating circuit. It can match to the characteristic frequency precisely before knowing the light path characteristic frequency to protect the performance of the optical fibre gyro.
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