三代微光像增强器分辨力自动测量系统

Resolution measurement of third generation LLL image intensifier

传统的像增强器分辨力测量通常采用目视观察法,但目视法受人的主观因素影响,测量准确度不高。为改善目视观察法带来的弊端,设计了三代微光像增强器分辨力自动测量系统。系统中选用了科学级制冷型CCD与计算机构成观测系统,采集微光像增强器荧光屏上的分辨力靶图像通过计算机进行图像处理和软件分析计算,得出三代微光像增强器分辨力,并与人眼观测结果进行比较。

Traditional resolution measurement of image intensifier is based on the observation of human eyes, but this method is dependent on individual observer and its veracity is not very high. In order to improve this situation, an automatic resolution method for 3rd image intensifier was devised. A scientific class CCD was used in the system, and the observation system is composed of the CCD and a computer. Resolution target image on the image intensifier fluorescence screen was acquired and sent to the computer to carry out image processing and software analysis. Then the resolution of 3rd image intensifier is obtained, and the result is compared with traditional one.