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使用激光投射光热法构造加热的地下缺陷定位

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Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography

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使用激光投射光热法构造加热的地下缺陷定位

DOI:

10.3791/55733-v

•

11:34 min

•

May 15, 2017

•

Erik Thiel, Mathias Ziegler

¹Department for Non-Destructive Testing, Thermographic Methods,Bundesanstalt für Materialforschung und -prüfung (BAM)

Chapters

00:05Title
00:45The Laser Projected Photothermal Thermography (LPPT) Setup
04:33Set Up the Camera Control and Perform the Experiment
07:43Post-process the Data and Extract Temperature Information
08:41Results: Defects Identified in a Steel Test Sample
10:03Conclusion

Summary

자동 번역

该方法旨在定位垂直的地下缺陷。在这里，我们将激光与空间光调制器耦合，并触发其视频输入，以确定性地用两个反相调制线加热样品表面，同时获得高分辨率的热图像。从评估热波干扰最小值来检索缺陷位置。

Tags

Keywords: Subsurface Defect Laser Projected Photothermal Thermography Structured Heating Thermal Imaging Non-destructive Testing Perpendicularly Oriented Defects Thermal Wave Fields Laser Fiber Power Meter Projector Translation Stage Infrared Photography Gold Mirror

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