基于视觉的活塞环闭口间隙自动测量关键技术研究

兰太吉; 付鲁华; 赵娜; 王仲

doi:10.13433/j.cnki.1003-8728.2015.0222

基于视觉的活塞环闭口间隙自动测量关键技术研究

doi: 10.13433/j.cnki.1003-8728.2015.0222

1.
天津大学精密测试技术及仪器国家重点实验室, 天津 300072

基金项目:

国家科技重大专项子项（2009ZX04014-092）资助

详细信息

作者简介:
兰太吉（1988-），硕士研究生，研究方向为光电检测与机电一体化，lantaiji@tju.edu.cn

通讯作者:
付鲁华，副教授，博士，fuluhua@tju.edu.cn

计量
- 文章访问数: 150
- HTML全文浏览量: 31
- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2013-08-01
- 刊出日期: 2015-02-05

Study on the Key Technologies of Automatic Measurement for the Close Clearance of Piston Ring Based on the Computer Vision

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

摘要

摘要: 提出了一种运用机器视觉测量活塞环闭口间隙的新方法，实现对闭口间隙高精度、高效率的自动化检测。该方法从被测对象定位、照明条件设置和等物距测量控制等方面，确保了测量信息源头的准确性。提出了创新的视觉检测标定方法，给测量活动提供准确方便的溯源基准；给出了针对性的闭口间隙图像处理和基于最小距离法直线拟合的数据产生路线。实验证明：该方法对活塞环闭口间隙的测量结果有良好的准确性和稳定性。
- 活塞环 /
- 闭口间隙 /
- 视觉测量 /
- 等物距测量 /
- 最小距离法
Abstract: The new measurement method for the close clearance of piston ring is introduced based on the computer vision, which can automatically inspect the close clearance with high precision and efficiency. The correctness of original measured information is ensured by positioning the measured object precisely, selecting appropriate lighting conditions and controlling the consistent object distance. In order to provide the accurate and convenient traceability for the measurement, an innovative calibration method is developed. Then, the image processing technique designed for the close clearance and data operation based on the minimum distance method are also presented. Finally, the experimental results prove the high accuracy and stability for measuring the close clearance of piston ring.
- calibration /
- CCD cameras /
- close clearance /
- computer vision /
- consistent object distance measurement

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参考文献(18)

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