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首页> 外文会议>Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US) >PHOTOINDUCTIVE NDE METHOD: REVIEW OF THE PRINCIPLE AND APPLICATIONS
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PHOTOINDUCTIVE NDE METHOD: REVIEW OF THE PRINCIPLE AND APPLICATIONS

机译：光电无损检测方法：原理与应用综述

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摘要

It is shown that the PI method generates image-quality inspection data, unlike the conventional EC NDE. Crack images, for instance, can be obtained at a ～10 μm resolution. A Pi-based EC probe characterization instrument has been developed to enable visual examination of EC probes by generating induced field maps. It is pointed out also that the combination of the high spatial-resolution capability and the presence of the two separate penetration depths provides a useful means of performing other laboratory-based NDE measurements, particularly material property measurements and characterization. Turning the PI method into a fieldable method requires further developments. The present issues are the scanning speed and the raggedness of the optical system. The regulatory restrictions imposed on any laser-based instruments may set operational constraints. Here, it is suggested that a time-domain operation may resolve the issue of slow data acquisition rates.
机译：结果表明，与传统的EC NDE不同，PI方法生成图像质量检查数据。例如，裂纹图像可以以〜10μm的分辨率获得。已经开发了一种基于Pi的EC探针表征仪器，可通过生成感应场图来目视检查EC探针。还应指出的是，高空间分辨率能力和两个单独的穿透深度的结合提供了执行其他基于实验室的NDE测量（尤其是材料特性测量和表征）的有用手段。将PI方法转变为可现场使用的方法需要进一步的发展。当前的问题是光学系统的扫描速度和参差不齐。对任何基于激光的仪器施加的法规限制可能会设置操作限制。在这里，建议时域操作可以解决数据采集速率慢的问题。

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