High Precision Data Acquisition System Of Seimic Exploration Based On FPGA

The paper analyses the current state of high precision data acquisition system ofseimic exploration and investigates the method and theory of A/D of data acquisition,the development and principle of FPGA technology and solution and advantage ofserial communication. Based on this, it is demonstrated that it is feasible to use 24 bitΔ∑ADC associated with FPGA to realize a high resolution data acquisition systemof seimic exploration. The paper studied the A/D, interface control, data transmissionwith serial port before the exploration sensor or detector of data acquisition system.Especially achieving interface control with FPGA be researched and designed indetail. In this part, the control module is accomplished by VHDL and digital logicblock like ROM and FIFO be integrated into a piece of FPGA. All the modules aresimulated in the QuartusⅡ6.0 and have a good effect as anticipated.