Data amalgamation of coarse and fine channels and error correction of inductosyn

LI Jing; KANG Jian-bing; LIU Xue-feng

doi:10.3788/OPE.20152313.0381

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Data amalgamation of coarse and fine channels and error correction of inductosyn

更新时间：2020-08-13

- Data amalgamation of coarse and fine channels and error correction of inductosyn
- Optics and Precision Engineering Vol. 23, Issue 10z, Pages: 381-387(2015)
- 作者机构：
  
  北京空间机电研究所北京,100094
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152313.0381
  CLC： TB922;TP212.1
- Received：15 May 2015，
  
  Revised：17 June 2015，
  
  Published：14 November 2015
- 稿件说明：
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李婧, 康建兵, 刘雪峰. 感应同步器读数粗精融合与误差修正[J]. 光学精密工程, 2015,23(10z): 381-387

LI Jing, KANG Jian-bing, LIU Xue-feng. Data amalgamation of coarse and fine channels and error correction of inductosyn[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 381-387
李婧, 康建兵, 刘雪峰. 感应同步器读数粗精融合与误差修正[J]. 光学精密工程, 2015,23(10z): 381-387 DOI： 10.3788/OPE.20152313.0381.

LI Jing, KANG Jian-bing, LIU Xue-feng. Data amalgamation of coarse and fine channels and error correction of inductosyn[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 381-387 DOI： 10.3788/OPE.20152313.0381.

摘要

为了提高感应同步器的测角精度

降低系统噪声和制造工艺对输出角度数据的影响

本文对实际测角系统中的粗精数据融合和角度误差修正算法进行了研究。针对感应同步器双通道零位偏差导致的数据融合问题

提出采用纠错表修正粗级的最高位方法处理跳变点;针对实际测角系统中感应同步器极对数不固定的情况

介绍了一种利用实测精级数据过零点找粗级起始点并进行四区间判读的方法进行粗精融合。最后

介绍了分段线性插值的角度误差修正方法。利用现场可编程门阵列完成了提出的算法并进行了实验验证。结果表明:经过上述融合算法和修正算法

实际系统感应同步器测角精度可达3"以内

基本满足感应同步器测量时对稳定性、可靠性、精度和抗干扰能力的要求。

Abstract

In order to improve the measurement precision of on inductosyn and to reduce the impact of noise and craft of the system on the output angle data

the paper discusses the data arithmetic and implementation on the amalgamation and correction of the actual system of inductosyn. Based on the problems from zero warp of dual channels of inductosyn

the amalgamation algorithms using correction table for dealing with the leaping dot of coarse data are presented. Then a data amalgamation method is proposed for the actual system to process the variational channel numbers. It confirms the beginning dot using actual measurement data and judges the validity using four quadrants. Finally

the angle error correction method based on the piecewise linear interpolation is discussed as well. A Field Programming Gate Array(FPGA) is used to implement and verify the proposed method. Experimental results indicate that the precision of the system of inductosyn is 3" after using the two methods above. It can satisfy the system requirements for reliability

precision

stabilization

as well as strong anti-jamming.

关键词

Keywords

references

侯新宇,金龙旭. 感应同步器测角系统的实现[J]. 光学精密工程,2012,12(22):92-95. HOU X Y, JIN L X. Implementation of an angle measuring system of inductive inductosyn[J]. Opt. Precision Eng., 2012,12(22):92-95.(in Chinese)

何佳宁,刘强. 高精度圆感应同步器角度测量系统[J]. 电子测试, 2008,10(10):1-3. HE J N, LIU Q. High precision angular measuring system of round inductosyn[J]. Electronic Test, 2008,10(10):1-3.(in Chinese)

王先全,甘霖. 感应同步器的幅值误差和正交误差的检测与补偿[J]. 重庆工学院学报(自然科学),2009,5(23):69-72. WANG X Q, GAN L. Detection and compensation of amplitude error and quadrature error for inductosyn[J]. Journal of Chongqing Institute of Technology(Natural Science), 2009,5(23):69-72.(in Chinese)

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LI CH, GAO R X. Error compensation techniques for a linear inductosyn displacement measurement system[C]. Proceedings of Integrating Intelligent Instrumentation and Control. Boston:IEEE, 2015:364-369.

WU Y A. On-orbit calibration of inductosyn error[C]. Proceedings of the American Control Conference. Baltimore:IEEE, 2014:2887-2891.

LIU Q. Application of inductosyns in high precision mechanical servo systems[C]. Proceedings of 1ST IEEE Conference on Industrial Electronics and Applications. Singapore:IEEE, 2006:1-4.

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DU CH Y, YANG G J. Error analysis and compensation for inductosyn based position measuring system[C]. Conference Record of the 2003 IEEE Industry Applications Conference. Salt Lake City:IEEE, 2013:6-10.

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Related Institution

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