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首页> 外文会议>Fatigue and fracture mechanics XXV >METHOD FOR MONITORING THE DESTRUCTION PROCESS OF MATERIALS USING A HIGH-SPEED CAMERA AND A CATODIOPTRIC STEREO-VISION SYSTEM
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METHOD FOR MONITORING THE DESTRUCTION PROCESS OF MATERIALS USING A HIGH-SPEED CAMERA AND A CATODIOPTRIC STEREO-VISION SYSTEM

机译：高速相机和阴极立体视觉系统监测材料破坏过程的方法

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摘要

The article presents a method for monitoring the destruction process of materials under mechanical load on a universal testing machine. Observations of the subjects are made using a highspeed camera and a catadioptric stereo-vision system. The camera allows for data acquisition with the capture speed more than a million frames per second (FPS) with reduced resolution. Catadioptric vision systems use mirrors and lenses in order to modify the observation path. In the proposed system four mirrors are required to divide the observation path into two separate paths. This enables monitoring the test specimens from different perspectives, which provides a number of advantages including information redundancy or stereovision. In order to verify the proposed method several metal specimens were put under mechanical load and monitored with the vision system. Test results are enclosed in the article. Selected registered images presenting the moment of the destruction are described in greater detail with data about the capture speed provided. The tests were conducted under front and back lighting in order to assess the best method of illumination.
机译：本文介绍了一种在通用试验机上监控机械载荷下材料破坏过程的方法。使用高速相机和折反射立体视觉系统对对象进行观察。该摄像机可以降低分辨率，以每秒超过一百万帧（FPS）的捕获速度进行数据采集。折反射式视觉系统使用反射镜和透镜来修改观察路径。在提出的系统中，需要四个反射镜将观察路径分为两个单独的路径。这使得可以从不同的角度监视试样，从而提供了许多优势，包括信息冗余或立体视觉。为了验证所提出的方法，将一些金属试样置于机械载荷下，并用视觉系统进行监控。测试结果附在文章中。所选的呈现破坏时刻的已注册图像将通过提供的有关捕获速度的数据进行详细描述。为了评估最佳照明方法，测试在正面和背面照明下进行。

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