摘要
针对热释电红外焦平面阵列(IRFPA)的成像特点,基于虚拟仪器技术,利用Labview软件平台,采用PCI-6115采集卡构造了PC-DAQ热释电IRFPA图像采集系统。利用外部驱动电路产生的驱动信号作为采集系统的控制信号,控制采集的起止以及采集的时钟。采集同步信号作为判别信号,判断热释电IRFPA的亮、暗场以便差分处理。详细叙述了图像采集系统的构成,硬件、软件设计以及程序面板的操作。并对实验室研制的热释电ROIC输出信号及热释电IRFPA图像输出进行采集实验,得到了输出信号的波形显示及图像显示,验证了图像采集的可行性。
Based on the virtual instrument technology and Labview software platform, pyroelectric IRFPA image acquisition PC-DAQ system was constructed using NI PCI-6115 acquisition card. Driving signals of external driving circuit were used as the control signals of the acquisition system to control the start and end and the sample acquisition clock. And synchronous signals were acquired to identify the light frame from the dark frame so as to make differential treatment. The construction of the image acquisition system, the design of hardware and software and the operation of front panel were presented in detail. Finally, image acquisition experiments were carried out on the pyroelectric ROIC and IRFPA. The waveform and image of the output signals were displayed in the system and the feasibility of image acquisition was validated.
出处
《半导体光电》
CAS
CSCD
北大核心
2013年第5期872-875,共4页
Semiconductor Optoelectronics
基金
国家自然科学基金项目(61071043
60702007
51205434)
