摘要
针对橡胶粘度测量精度不高、测试时间长、效率低的问题,对视觉测橡胶粘度的方法进行了研究,提出了一种利用滚球测橡胶粘度的视觉矫正算法。首先对滚球法测橡胶粘度的原理进行了说明,建立了视觉矫正模型,并对矫正算法进行了分析与实现;该算法根据滚球运动不同位置状态进行了分析处理,解决了不同状态下滚球中心位置的确定问题;最后通过粘度测量平台测量橡胶的粘度验证了矫正算法的可行性。实验结果表明:该算法得到的多次实验数据波动较小,满足工业生产的要求;该矫正算法因不存在近似求解,同时模型不受滚球到投影面距离的影响,算法的适用性与测试结果的准确性得到进一步提高。
Aiming at the problems of low measuring accuracy,long testing time and low efficiency of rubber viscosity measurement,the method of measuring the viscosity of rubber by vision was studied,a correction algorithm for measuring viscosity of rubber by rolling steel ball was proposed. The principle of measuring the viscosity of the rubber by the method of rolling ball was described and the visual correction model was set up. The correction algorithm was analyzed and implemented. The problem of determining the central location of ball under different conditions was solved by analyzing different positions of the rolling ball. At last the viscosity of the rubber was measured by a viscosity measuring platform to verify the feasibility of the correction algorithm. The results indicate that the experimental data obtained by this algorithm is little changed,which can meet the requirements of industrial production. The algorithm does not approximate the result and is not influenced by the distance from the ball to the projection plane,these serves to improve the applicability of the algorithm and the accuracy of the result.
出处
《机电工程》
CAS
北大核心
2018年第2期166-169,共4页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(51105213)
关键词
橡胶粘度
视觉
矫正模型
矫正算法
viscosity of rubber
vision
correction model
correction algorithm
