CAJ | 학술논문

为有效解决弹光调制（Photoelastic Modulation）傅里叶变换光谱仪数据量大，调制干涉信号频率高，所需采集速度高的问题，提出了一种基于FPGA和模数转换器件AD9224相结合的高速数据采集方案。该方案在分析AD数据采集工作模式的基础上，在Xilinx ISE12.4的开发环境中，利用Verilog硬件描述语言编程，对数据的高速采集进行了设计输入和仿真验证，实现了AD9224在FPGA控制下的高速信号采集，采集速度为40M，通过设计采集存储控制板实现了硬件测试，验证了该设计的可行性和准确性，实现了弹光调制傅里叶变换光谱仪高速数据采集，数据的快速传输与上位机显示。
위유효해결탄광조제（Photoelastic Modulation）부리협변환광보의수거량대，조제간섭신호빈솔고，소수채집속도고적문제，제출료일충기우FPGA화모수전환기건AD9224상결합적고속수거채집방안。해방안재분석AD수거채집공작모식적기출상，재Xilinx ISE12.4적개발배경중，이용Verilog경건묘술어언편정，대수거적고속채집진행료설계수입화방진험증，실현료AD9224재FPGA공제하적고속신호채집，채집속도위40M，통과설계채집존저공제판실현료경건측시，험증료해설계적가행성화준학성，실현료탄광조제부리협변환광보의고속수거채집，수거적쾌속전수여상위궤현시。
To effectively solve the problem of data acquisition with high speed and large capacity also high frequency of the interference signals in the Photoelastic Modulation Fourier transform spectrometer ,a high speed data acquisition scheme based on AD9224 and FPGA is proposed. On the basis of analysing the AD data acquisition work mode , this scheme use Verilog HDL language in Xilinx ISE 12.4 development environment for the high speed data acquisition to design input and simulation verification,and the AD9224 works at the speed of 40 MHz, which means the data acquisition is also realized under the control of FPGA. Finally, through designing case of a data acquisition and storage control panel, the hardware test is realized,the validity and feasibility of the presented design is demonstrated,also the high speed data acquisition and fast data transmission with PC display in Photoelastic Modulation Fourier transform spectrometer is realized.