针对当前蜗杆制造误差检测的实际情况，结合成都工具研究所研制的蜗杆误差检查仪，进一步深入讨论了一种改进性方案的原理及其电路的硬软件设计。该方案的下位机硬件系统主要是数据采集电路，应用重庆大学张光辉教授的发明专利“计算机对脉冲信号的细分与辨向新方法”，利用频率极高的外部插入脉冲，结合软件构成按时间均匀分度的辅助标尺，完成在动态测量过程中采样点实时细分任务，再将采样数据上传给上位PC机进行数据处理，得出检测结果。该方案集成度高，并且大大简化了传统检测方法中繁琐复杂的硬件电路。

Aiming at solving the matter of fact of manufacture errors on worm, the worm test apparatus is studied by the tool research department in Chengdu.A kind of improved principle,hardware and software design of the project is discussed. The primary aim of the single chip microcomputer circuit of this project is data collecting, and the invention monopoly of professor Zhangguanghui of Chongqing university is applied. The high frequency inserted pulse is used, and the software is joined in constitute subsidiary calibration distributed on equal time. The task of online subdivision in the dynamic measure process is completed. The data are passed to PC, PC handle them and examination result is gotten. The integration of the process is very high, and the tedious and complicated hardware circuit is simplified like the tradition examination method.

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