摘要
基于虚拟仪器技术,采用NI公司的PCI-6115采集卡构造虚拟仪器系统对读出电路输出的视频信号进行采集。利用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。详细叙述了采集程序的设计流程以及程序面板的操作。并对实验室研制的两种器件输出信号进行采集实验,分别验证了单通道采集与多通道并行采集的可行性。实验结果证实本采集系统可以采集不同像元数的单路以及多路红外视频输出。
Based on the virtual instrument technology,the output video signals of readout circuit were acquired by the virtual instrument system constructed using NI PCI-6115 acquisition card.Driving signals were used as acquisition system′ control signals to control the start,the end and the sample clock of acquisition.The design flows of acquisition program and the operation of front panel were presented in details.Then,acquisition experiments of the output signals of two chips developed in lab were taken out.The feasibility of single channel′ acquisition and multichannel acquisition were validated respectively.And it was approved that this acquisition system can acquire both single-channel and mutichannel infrared video signals with different pixel number.
出处
《激光与红外》
CAS
CSCD
北大核心
2008年第5期468-471,共4页
Laser & Infrared
关键词
红外信号
虚拟仪器
采集系统
infrared signal
virtual instrument
acquisition system
