论文部分内容阅读
为了对大尺寸筒状设备进行圆度误差评定,研制了大尺寸筒状设备圆度误差测量系统。其结合了激光准直、图像处理等多方面技术对大尺寸筒状设备的圆度误差评定进行研究。首先,介绍了系统获取大尺寸筒状设备圆度数据的方式。然后,根据圆度数据的获取方式,提出了基于相邻测点位置关系的最小外接圆过滤算法。最后,验证该算法的过滤效率,并与同类算法在解算时间、解算结果两方面进行比较。实验结果表明:最小外接圆过滤算法解算时间较以往同类算法缩短了30%以上。系统CCD测量杆的测量精度达到0.7 mm。大尺寸筒状设备圆度误差测量系统满足工程需要,可对大尺寸筒状设备进行有效圆度误差评定。
In order to evaluate the roundness error of a large-size tubular device, a roundness error measurement system for the large-sized cylindrical device was developed. The combination of laser collimation, image processing and other aspects of large-size cylindrical device circularity error assessment study. First of all, introduced the system to obtain the roundness of large-size cylindrical device data. Then, based on the method of obtaining circularity data, a minimum circumcircle filtering algorithm based on the location of neighboring measurement points is proposed. Finally, verify the filtering efficiency of the algorithm, and compared with similar algorithms in solving the time and solving the results. The experimental results show that the minimum circumcircle filtering algorithm is more than 30% shorter than the similar algorithms in the past. System CCD measuring rod measurement accuracy of 0.7 mm. Large-size cylindrical equipment Roundness error measurement system to meet the needs of engineering, large-size cylindrical equipment for effective roundness error assessment.