用于光纤F-P传感器互相关解调的CCD信号采集系统的设计

he linear CCD plays a vital role in the cross-correlation demodulation system of optical fiber F-P(Fabry-Porot)sensors. The design of linear CCD signal collection system is described according to the cross-correlation demodulation principle.The system has the accurate and programmable timing feature with FPGA as the core,eliminates the output noise effectively by using a 16 bits CCD signal processor AD9826,facilitates data acquisition from the host computer by integrating with a USB interface. The experiments show that,this system can not only drive and control linear CCD and the peripheral circuit flexibly but also realize the function of collecting、accurate and high speed transmission the signal of linear CCD.