螺纹测端姿态测量系统的非线性矫正

裘祖荣; 邹茂虎; 陈浩玉

doi:10.13433/j.cnki.1003-8728.2015.0325

螺纹测端姿态测量系统的非线性矫正

doi: 10.13433/j.cnki.1003-8728.2015.0325

1.
精密测试技术及仪器国家重点实验室, 天津大学, 天津 300072

详细信息

作者简介:
裘祖荣（1953-），教授，博士生导师，研究方向为精密机械与精密仪器设计、信息传感技术等，qzr@tju.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2013-05-17
- 刊出日期: 2015-03-05

The Nonlinearity Correction of the Posture Measurement System for the Thread Measuring Front

1.
State Key Laboratory of Precision Measuring Technology and Instrument, Tianjin University, Tianjin 300072

摘要

摘要: 螺纹测端姿态测量是数字化轮廓包络法螺纹综合测量的关键技术之一。设计了基于AD598的螺纹测端姿态测量系统。为了提高螺纹测端姿态测量的精度，需要对螺纹测端姿态测量系统的非线性进行矫正。通过对信号采集系统的传递函数进行标定，将传递函数的线性部分和非线性部分进行分离，通过求解非线性部分的转换函数，在软件算法中实现了非线性部分的矫正。实验结果表明，非线性矫正后螺纹测端姿态测量系统的转角测量非线性误差减小1'17.25″，将测量系统的非线性误差控制在0.12%内，满足了测量系统的要求。
- 螺纹测端 /
- 姿态测量 /
- 非线性 /
- 误差 /
- 标定
Abstract: The attitude measurement for the threaded probe end is one of the key techniques in the screw comprehensive measurement that is based on the digital contour envelope. An attitude measurement system of the threaded probe end was designed. To ensure the measuring precision of the attitude measurement, it is necessary to correct the nonlinearity of the measuring system. The transfer function of the signal sampling system was calibrated and the nonlinear part was separated with the linear part. The nonlinear part was corrected by using the correction algorithm after the transform function of the nonlinear part was solved. The results showed that the angular displacement nonlinear error decreased 1'17.25" and the nonlinear error of the measuring system was less than 0.12% after the nonlinearity had been corrected, and the precision met the requirement of the system.
- algorithms /
- attitude measurement /
- calibration /
- design /
- digital signal processors

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参考文献(10)

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