Turbine Blade Shape Evaluation by Color Trapezoidal Phase-shifting 3D Measurement Technique

摘要：

The key for coded structured light 3D measurement technique in turbine blade shape evaluation is to improve measurement accuracy, and anti-interference capability and measurement speed are taken into account simultaneously. Color trapezoidal phase-shifting technique by combing grey trapezoidal phase-shifting method with RGB color space model is proposed, which only needs a color trapezoidal fringe pattern to carry out 3D measurements. Color coupling and imbalance problems are analyzed and Color calibration method based on Caspi illumine model is proposed, which improves the measurement accuracy and anti-jamming capability. Measurement system was established according to mathematic model. Experimental results show that error of measured standard plane is less than 0.18mm. Finally, the method for turbine blade molded lines evaluation was explored.

关键词： 3D Measurement Coded Structured Light Shape Evaluation Color Trapezoidal Phase-Shifting Color Calibration

作者: Haibin Wu Liquan Wang Chu Shi He Wang Shuang Yu

作者单位: College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, China The h College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, China Handong Academy of Sciences Institute of Oceanographic Instrumentation The higher educational key laboratory for Measuring & Control Technology and Instrumentations of Hei

会议类型: 国际会议

会议名称: The 4th International Symposium on Computational Intelligence and Industrial Application(第四届国际计算智能和工业应用研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 366-370

在线出版日期: 2010-08-01（万方平台首次上网日期，不代表论文的发表时间）