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首页> 外文会议>International Symposium and Exhibition on Sophisticated Car Occupant Safety Systems; 20021202-04; Karlsruhe(DE) >Non-contacting measurement technology for component safety assessement
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Non-contacting measurement technology for component safety assessement

机译：非接触式测量技术，用于组件安全性评估

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摘要

In this paper, we have provided an overview of an accurate technology to measure non-contact and full-field displacement and strains. The simple and robust setup is well-suited to both laboratory and field conditions and minimal specimen preparation is required. The key points of the technology and analysis software are:1. Successfully used to make measurements on a range of specimen sizes from 0.50mm to 200mm2. Accuracy unaffected by large in-plane rotations or translations3. Accuracy up to +/-0.01 pixels in displacement4. Accuracy ＞ 200 microstrain5. ＞ 500% strain can be measured6. Quasi-static to ultra-high speed events.With the 3D technology full-field, three-dimensional displacement measurements can be achieved with:7. Curved or planar objects from ＜ 1mm to several meters in size8. Includes effects of perspective in image analysis9. Cameras can be calibrated and moved to test site10. Accuracy unaffected by large rotations or translations11. Strain levels in excess of 100% have been successfully measured12. Complex loading (combined tension/torsion, compression, pressurization etc.)
机译：在本文中，我们对测量非接触和全场位移和应变的精确技术进行了概述。简单而强大的设置非常适合实验室和现场条件，并且需要最少的样品准备。该技术和分析软件的要点是：1。成功用于在0.50mm至200mm2的样本尺寸范围内进行测量。精度不受平面内大旋转或平移的影响3。位移精度高达+/- 0.01像素4。精度＞ 200微应变5。 ＞ 500％的应变可以测量6。准静态到超高速事件。使用3D技术全视野，可以通过以下方式实现三维位移测量：7。小于1mm到几米长的弯曲或平面物体8。在图像分析中包括透视的影响9。可以校准摄像机并将其移至测试地点10。精度不受大旋转或平移的影响11。已成功测量出超过100％的应变水平。复杂的载荷（拉伸/扭转，压缩，加压等组合）

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