24位绝对式编码器处理电路的改进设计与实现

Design and Implementation of an Improved 24-Bit Rotary Encoder Processing Circuit

鉴于外场环境和专项试验对绝对式编码器的稳定性要求越来越高,对传统的绝对式编码器处理电路进行了技术改进。该处理电路全部采用A/D转换器采集放大与整形之后的模拟信号,通过软件完成光电信号的比较、细分、译码、校正、平均和参数整定等功能,实现了把轴角实际转动的角度值转换成自然二进制数字代码。经实际项目论证,该编码器运行稳定。

To satisfy the requirement of field test and special test to high stability of the absolute encode~, technological improvements were made to the traditional absolute encoder processing circuit. In the processing circuitry, A/D converters are used for collecting the amplified and shaped analog signals. The processing to photoelectric signal was implemented through software, including comparison, subdividing, decoding, correcting, averaging, and parameter tuning etc. The actual rotation angle of the shaft angle was converted into natural binary digital code. The practical demonstration projects proved that the encoder system is stable.