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10 January 2005 The application of the UFPA in the detection of hot pipelines underground
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It is difficult to detect the flue or the oil pipelines that had been buried underground on line. The oil in the pipelines must be heated to a certain temperature in some oil fields. Otherwise, the oil will freeze because of the paraffin mixed in it. The water in the flue pipelines must maintain a certain temperature in order to keep the house warm in winter. The temperature of the pipelines can conduct to the surface of the soil, so an uncooled focal plane arrays (UFPA) detector to measure the infrared energy of the soil surface can be used. The output of the thermal infrared detector can be expressed as the gray thermal pictures. According to the different degree of gray in the thermal pictures, we can process the pictures in terms of mathematics algorithm and obtain the temperature distribution of the soil surface, through which we can judge the direction of the pipelines underground. The advantage of the method is simple operation, direct display and harmless to human and the environment.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shuwang Chen and Mingshi Wang "The application of the UFPA in the detection of hot pipelines underground", Proc. SPIE 5640, Infrared Components and Their Applications, (10 January 2005);

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