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高速摄像测试技术是一项高科技测量技术,目前在抗震试验领域的应用还较少。抗震试验中,作为设备抗震性能评判依据的设备顶部与底部相对位移的测量,目前还没有准确的方法。本文以电动振动台水平台面为实验对象,对其施加定频正弦激励,同时采用基于加速度传感器的接触式测量方法和基于高速摄像技术的非接触式振动测量方法采集水平台面的振动信号,通过数据对比,验证基于高速摄像技术的振动测试方法的可行性。
High-speed camera test technology is a high-tech measurement technology, the current field of seismic testing is also less. In the seismic test, there is no accurate method for measuring the relative displacement between the top and the bottom of the equipment, which is the basis for the evaluation of the seismic performance of the equipment. In this paper, the horizontal table of electric shaker as the experimental object, the fixed-frequency sinusoidal excitation applied to it, while the use of contact-based acceleration sensor-based measurement methods and high-speed camera-based non-contact vibration measurement method of horizontal vibration signal acquisition platform, Compare and verify the feasibility of the vibration test method based on high-speed camera technology.