航空设备端口信号测试技术研究

Measurement Technique for I/O Signals of Aero Equipment

从测试端口信号分析设备功能的实际工作中,总结出测试工作的步骤、方法和要点。叙述了从端口测试大电流、高电压、模拟信号和数字信号的方法;研究出从两台设备之间的连线上测出信号流向的技术,给出了用于指示该流向的电路。基于端口信号测试,可分析出设备的性能,完成功能替代研制,实现进口设备的国产化。

The technique that the characteristics of aero equipment can be obtained by measuring signals on its I/O lines is shown. The steps, method and key points of the measurement technique are systematically described. Large current, high voltage, analogy signal and digital signal on the lines can be identified. The direction of a signal transmission between two equipments can be tested and the electronic circuit for the indicator is given. Based on the signal analysis, characteristics of the aero equipment may be obtained and the equipment can be substituted with another one made by ourself.