非接触式测振技术有着非侵入无损检测、空间分辨频率高、实时性强等优良的特性。为了实现大视场、多点实时测量,提出了一种基于双目机器视觉的三维测振技术。在待测物表面粘贴100个圆形发光标志点,选取不同频率、振幅的标准振动台进行测试,分别采集500帧图像进行处理。实验结果表明,测量精度为54 μm/m,该系统具有良好的稳定性,可满足大多数振动测量的要求。

The non-contact vibration measurement technology is characterized by its non-invasive non-destructive testing,high spatial resolution,and real-time performance.In order to achieve a large field of view and multi-point real-time measurement,a three-dimensional vibration measurement technology based on binocular machine vision is proposed.100 round luminescent mark points are sticked on the surface of the test object,and a standard shaker with different frequencies and amplitudes is selected for testing.500 images are collected for processing.The experimental results show that the measurement accuracy is 54 μm/m.The experimental results show that the system has good stability and can meet the requirements of most vibration measurement.