A simple photoelectric system is described in this paper. We choose the optimum diaphragm through measuring the optical transfer function with different dimensional double ringed diaphragms.
设计了一个简单的光电系统，测量了不同尺寸的双环光阑的光学传递函数，从中选出了最佳光阑。
2
The main function modules and design of photoelectric control switch system based on the infrared electronic transducer technology are introduced in detail.
详细介绍基于红外传感技术的光电控制开关系统的主要功能模块及设计。
3
The stop function of the photoelectric detecting conveyer belt can reduce the abrasion and scratch to the container from the belt while feeding.