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首页> 外文会议>Optics and Photonics for Information Processing; Proceedings of SPIE-The International Society for Optical Engineering; vol.6695 >Adaptive, Single Crystal Holographic Interferometer and Applications
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Adaptive, Single Crystal Holographic Interferometer and Applications

机译：自适应单晶全息干涉仪及其应用

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Application of real time interferometry to NDT of the most vital parts of mechanical constructions in machinery is one of the challenging problems of contemporary engineering. The basic principle of interferometric methods is based on non-contact sensing of displacements which leads to visualization of defects, visualization of vibrated modes and stresses.In real engineering constructions almost all monitored objects have diffusely reflective surfaces, which are non mirror-like. Unfortunately a small interference contrast of diffusely reflective surfaces using contemporary interferometric technique inhibits applications of these methods to NDT. The most contemporary potentially powered method of electronic holography EH produced low contrast interferogram of diffusely reflective objects (Fig.l). It needs special algorithms, software, and time processing to improve the contrast of interference fringes. The real time monitoring, which based on surface displacements measurements under high energy impact such as laser shout, ballistic problems in military, etc. needs high contrast, real time metrology.The interferometric technique of highly effective dynamical grating has been proposed in continuous hologram development regime for monitoring of diffusely reflective objects in the real time.
机译：实时干涉测量技术在机械中最重要的机械部件的无损检测中的应用是当代工程学面临的难题之一。干涉测量法的基本原理是基于位移的非接触式感应，从而导致缺陷的可视化，振动模式和应力的可视化。在实际的工程构造中，几乎所有被监视的对象都具有漫反射表面，这些反射表面是非镜面的。不幸的是，使用现代干涉技术的漫反射表面的小干涉对比度抑制了这些方法在无损检测中的应用。电子全息术EH的最现代的潜在动力方法产生了漫反射物体的低对比度干涉图（图1）。它需要特殊的算法，软件和时间处理来提高干涉条纹的对比度。实时监测是基于高能量冲击下的表面位移测量而产生的，例如激光呼喊，军事上的弹道问题等，需要高对比度，实时计量。连续全息图的开发中提出了一种高效的动态光栅干涉技术。实时监控漫反射物体的方式。

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