新型磁电式多圈绝对编码器设计

发布时间：2018-01-12 05:20

本文关键词：新型磁电式多圈绝对编码器设计　出处：《黑龙江大学》2015年硕士论文　论文类型：学位论文

更多相关文章： AS5045 多圈绝对式编码器 STM32 ARM

【摘要】：当前正值工业工程自动化蓬勃发展的时期,自动化工业的发展引起了对测控工具的广泛需求。在很多大行程测量定位场合,如水塔水位测控,水闸开度测控等,直接使用直线测控工具非常困难,使用增量式编码器或单圈绝对式编码器容易产生掉电信息丢失现象或量程不足,并且不容易重复进行零点标定。使用多圈绝对式编码器通过测量转过的圈数和角度,间接获得直线行程及位置的方法可以解决上述问题。而目前多圈编码器大都制造难度大,成本高,价格昂贵,使用范围大大受到限制。本文通过使用高性价比的磁旋转编码芯片AS5045与减速装置相结合,设计了大量程,高分辨率,高转速,高稳定性,低成本的新型多圈绝对式编码器。它的高性能,低成本,低价格,可以大大推动多圈编码器在更广泛的领域得到应用。文章首先分析了编码器的现状,并介绍了本文开发的多圈绝对式编码器的核心器件AS5045芯片,阐述了此多圈编码器的原理及结构并讨论了减速机构的选择。本文对此编码器从机械传动和电路两个方面进行了详细分析设计。在机械传动部分针对编码器系统的大传动比、小惯量的要求对传动齿轮组进行了优化设计。同时进行了力学分析,推导了传动机构系统动力学公式。还详细分析了齿轮组的传动误差的产生和影响,及传动误差的组成和大小。在电路部分,设计了AS5045组合采样模块和数据处理器模块及数据通信接口模块;软件上设计了数据传输、数据处理程序。最终达到单圈分辨率为212,圈数达到4096圈。
[Abstract]:At present, with the rapid development of industrial engineering automation, the development of automation industry has caused a widespread demand for measurement and control tools, such as water tower water level measurement and control, sluice opening measurement and control and so on. It is very difficult to use straight-line measurement and control tools directly. Incremental encoder or single-loop absolute encoder is easy to cause loss of power information or insufficient measuring range. And it is not easy to repeat the 00:00 calibration. By measuring the number of turns and angles, a multi-cycle absolute encoder is used. The method of obtaining the straight line stroke and position indirectly can solve the above problem. At present, most of the multi-loop encoders are difficult to manufacture, high cost and expensive. The range of application is greatly limited. This paper designs a large range, high resolution, high speed and high stability by using the high performance-price ratio magnetic rotation coding chip AS5045 and the deceleration device. Low-cost multi-loop absolute encoder, its high performance, low cost, low price, can greatly promote the application of multi-loop encoder in a wider field. Firstly, this paper analyzes the status of the encoder. The core device AS5045 chip of the multi-loop absolute encoder developed in this paper is also introduced. This paper expounds the principle and structure of the multi-ring encoder and discusses the selection of the deceleration mechanism. This paper analyzes and designs the encoder in detail from two aspects: mechanical transmission and circuit. In the mechanical transmission part, it is aimed at the encoder system. The big transmission ratio. At the same time, the mechanical analysis is carried out, the dynamic formula of transmission mechanism system is deduced, and the generation and influence of transmission error of gear group are analyzed in detail. In the circuit part, the AS5045 combined sampling module, the data processor module and the data communication interface module are designed. The software designed data transmission, data processing program. Finally, the resolution of single cycle is 212, and the number of cycles is 4096 cycles.
【学位授予单位】：黑龙江大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN762

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