| 张晓川*,王勇,徐夺花,曾光,何迅.基于数字图像相关的转速测量方法[J].实验力学,2016,31(1):31~38 |
| 基于数字图像相关的转速测量方法 |
| On the Rotation Speed Measurement Method Based on Digital Image Correlation |
| 投稿时间：2015-06-05 修订日期：2015-10-13 |
| DOI：10.7520/1001-4888-15-093 |
| 中文关键词: 数字图像相关 位移 转速 速度瞬心 |
| 英文关键词:digital image correlation displacement rotation speed velocity instantaneous center |
| 基金项目:天津商业大学青年基金项目(140103), 国家级大学生创新创业训练计划项目(201410069019)资助 |
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| 中文摘要: |
| Aiming at kinematic parameter measurement of rotating mechanism, a method of measuring kinematic parameters, such as the rotation angle, the rotation speed and the velocity instantaneous center etc., is proposed in this paper, based on digital image correlation technique. Reliability analysis was carried out by using simulated speckle pattern. Results show that if taking the average value of test results from multiple regions as reliable test results, the measurement accuracy of rotation angle can reach 0.01°, and the measurement accuracy of velocity instantaneous center can reach sub-pixel level. Authors have established a rotation speed image measurement system, which was used to measure the rotational speed and the velocity instantaneous center of a motor shaft. Experimental results further indicate that above proposed method which is based on digital image correlation, has high accuracy and stability in practical engineering measurement. |
| 英文摘要: |
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