ISA总线下的轴角编码器的设计

轴角编码器用于将火控雷达输出的现在点和未来点坐标角度值的模拟量转换成对应的数据值，以便于数据处理器进行各种处理。它设计包括有：电阻分压网络、模拟转换开关、比例放大器、A／D转换器、数据锁存器、控制电路等。利用各种新型的电子技术，实现轴角编码器各种参数的数据采集与分析处理，从而对火控系统的性能进行判断。本选题的重点是硬件的选择及软件的设计等内容。其中输入量包括方位角、高低角、距离等值。

Design of the Shaft Encoder under ISA Bus

Shaft encoder in the system is used to transform the analog quantity of present point and future point coordinate angle value outputted by fire control radar to the corresponding value, it will be convenient for various processing with data p processor. The components of design includes the resistor divider network, analog converting switch, proportional amplifier, A/D converter, data latch and control circuit etc. it uses all kinds of new typed electrical technology to realize the data collection and analysis processing for all reference of shaft encoder so as to make judge for the function of fire control system. The key point of this topic is the selection of hard- ware and software design. The input value includes azimuth angle, angular altitude, distance and so on.