Design and Implementation of APS Test System for High-Speed and Large Array APS Device Based on Camera-Link

This paper analyzed the working principle and interface character of the APS image sensor, and designed an APS test system for high-speed and large array APS device based on the Camera-Link interface. The system was made up of several subsystems as lighting control, pattern generator, image data gather and analyze. By using FPGA device, this paper designed the interface of APS to Camera-Link and solved the problem of mass data transfer during APS-testing. By analyzing the output of the APS pixels under different exposure time, this system could test the key specifications of APS device like saturation exposure time, saturation output curve and bad pixels.