高速相机采样时序准确性检测方法

Detection method for the accuracy of high-speed camera sampling sequence

提出了一种检测高速相机采样时序准确性的方法,该方法利用脉冲信号控制检测目标的发光状态,高速相机摄录检测目标,分析图像及采样时序,得到高速相机采样频率和时序是否准确可靠。结合该方法设计了一套检测器,利用该检测器分析了Mega Speed公司生产的MS50K高速相机的采样时序。实验结果表明,该款高速相机的频率和时序准确,同时也说明了利用该方法能够完成高速相机采样频率及时序准确性的检测。该检测器响应时间经修正能达到1μs以内,满足其作为时序检测设备的设计要求。

A detection method on the accuracy of high-speed camera sampling sequence is proposed. Pulse signals are used to control and test the luminescence of the targets,and the detected targets are recorded with high speed camera. Through analyzing images and sampling sequence,the sampling frequency and time sequence of the high speed camera are obtained and verified. A set of sampling frequency detector was designed based on this method,and the frequency and time sequence of MS50K high-speed camera were analyzed with this detector. The results show that the frequency and time sequence of MS50K high speed camera are accurate,and the proposed method can be applied to the accuracy detection of sampling frequency and time sequence. The response time of this detector reaches 1μs after modification,which can satisfy the requirements of the sampling sequence detection equipment.