And the characteristics of PCI CY7C09449 CMOS chip and GPIB port are analyzed ,the method of designing hardware and software are put forward and the graph of SLD which is measured with spectroscopic instrument and with the system as the sampling device.

• 分析了PCI CY7C09449芯片和GPIB端口的特点,提出了硬件和软件设计的方法,并给出了用此系统作为采集设备,用光谱仪测得的SLD图象。