20 February 2018 Infrared thermography for inspecting of pipeline specimen
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Infrared thermography is a fast and effective non-destructive testing method, which has an increasing application in the field of Aeronautics, Astronautic, architecture and medical, et al. Most of the reports about the application of this technology are focus on the specimens of planar, pulse light is often used as the heat stimulation and a plane heat source is generated on the surface of the specimen by the using of a lampshade, however, this method is not suitable for the specimen of non-planar, such as the pipeline. Therefore, in this paper, according the NDT problem of a steel and composite pipeline specimen, ultrasonic and hot water are applied as the heat source respectively, and an IR camera is used to record the temperature varies of the surface of the specimen, defects are revealed by the thermal images sequence processing. Furthermore, the results of light pulse thermography are also shown as comparison, it is indicated that choose the right stimulation method, can get a more effective NDT results for the pipeline specimen.
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Dapeng Chen, Dapeng Chen, Xiaoli Li, Xiaoli Li, Zuoming Sun, Zuoming Sun, Xiaolong Zhang, Xiaolong Zhang, "Infrared thermography for inspecting of pipeline specimen", Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106970L (20 February 2018); doi: 10.1117/12.2309345; https://doi.org/10.1117/12.2309345

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