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作者根据大离焦的准傅里叶-夫琅和费全息术对柴油机喷油雾场研究的要求,研制了一套模拟试验系统,并对节流式电控喷油器产生的瞬态柴油雾场进行了拍摄和初步分析,讨论了试验中应注意的若干问题。结果表明:作者提出的光路能较好地满足柴油机喷油雾场试验研究的需要;模拟试验的测量精度至少优于9微米;精心选择光学元件和离焦量是实现准傅里叶-夫琅和费全息术的关键。
According to the requirements of the quasi-Fourier-Fraunhofer Fisheye on the research of diesel fuel injection fog field, a set of simulation test system was developed and the transient diesel generated by the throttling electronic fuel injector Fog field were taken and preliminary analysis to discuss the test should pay attention to a number of issues. The results show that the optical path proposed by the author can better meet the need of experimental study of diesel fuel injection fog field; the accuracy of simulation test is at least 9 microns; the selection of optical element and defocus amount is the realization of quasi-Fourier And the key to holmium surgery.