Projection Method To Measure The Flier Attitude Angle Accuracy

With the development of computer technique, electronics technique and modern optics information theory, the un-touched optics has an ocean of evolution. High-speed, high-resolution, un-touched, adjustability and low cost characterize the un-touched Optical shape measurement technique. It has been widely used in Reverse Elngineering, CAD, Numerical Control Machining, fast Moulding, product Quality Inspection and medieal science etc.The profile measurement technology has widely application and promising future in fields of robotic vision, biomedicine, industrial online inspection etc. The opti-electronical profile measurement has obtained attention widely due to the advantages of high speed, automatic measuring, high precision and non-contact. With the advantages of only one fringe needed and high Precision, Fourier transform profilometry (FTP) based on fringe Projection has been applied to shape measurement for dynamic objects, and made a rapid progress.In the paper, this method has been discussed, including theoretical analysis, Phase calculating and unwrapping. And the FTP method has been applied to detonation study, Presented including fundamental theory, progress simulation, dynamic experiment, etc. Finally elementary experiment data and result is obtained.In aspect of experiment, the project is discussed from detonation body receive equipment, projection, and time arrangement, etc. Projection is designed.while has solved the problem of high luminance fringe, and as a result, the dynamic fringe is obtained. According to elementary experiment result, the experiment project is mended.With the development of scientific research and technical production, shape dynamic measurement has been generally lucubrated in some field such as high-speed, hydromechanics, stress analysis, impact process, and so on. Compared with other methods, Fourier transform profilometry (FTP) requires only one frame of the deformed fringe pattern, while makes real-time data acquiring and processing of dynamic process possible.FTP dynamic fringe is obtained in the experiment, forepart of while has been unwrapped. It is indicated from the theoretical analysis and experiment study, while the method based on FTP applied to detonation is promising. Based on FTP, a method with which marked fringes tracking for high movement process is proposed.