Optical Inspection System for the Inner Surface of a Pipe

摘要：

The inspection for the inner wall is necessary during the life of a pipe from the production to the condemnation. A corresponding optical inspection system has been developed. This system uses the motion of a complicated mechanism in the axial direction droved by a stepper motor, and the detection of panoramic images from the illuminated circumferential inner surface realized by a hemispherical panoramic imaging system (HPIS). Irregularities of images due to corrosion or accumulation of brass deposits on the inner surface are inspected by this system. The experimental system reported in this article has the following specifications: resolution of detection of 0.3 mm at the circumference direction and 1.1 mm at the axial direction of a pipe, and inspection speed of 15 mm/s at an interval of 0.5 mm.

关键词： Inspection Inner wall Pipe LED ring Hemispherical panoramic imaging system Image sensor

作者: Zhao Liefeng Feng Huajun Li Qi Ye Tingfeng

作者单位: State Key Laboratory of Modern Optical Instrument,Zhejiang University,Hang Zhou,310027,China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）