Dynamic 3D Shape Measurement Technology For Detonation Experiment

With the advantages of only one fringe needed and high precision, Fourier transform profilometry (FTP) based on fringe projection has been applied to 3-D 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. For the first time, 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 project is designed which 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.For the first time, FTP dynamic fringe is obtained in detonation experiment, forepart of which has been unwrapped. It is indicated from the theoretical analysis and experiment study, which the method based on FTP applied to detonation is promising. And with the progressing of study, it is possible for the method to applying further in the research on national defence field as detonation physics.