Novel design and analysis of a flexible mechanism of moving mirror

The research on the mechanism of moving mirrors based on Michelson interferometer is one of the technical difficulties in the whole research process of Fourier-transform spectrometer, in which case flexible mechanism is considered as a critical component of moving mirror. On the basis of parallelogram flexible mechanism, a kind of complexity design was conducted and a novel flexible mechanism was created. In addition, the principle of its mechanism was analyzed by simulation softwares such as finite element analysis software Patran and Nastran. The corresponding results were compared with those from traditional theoretical calculation of parallel double rod mechanism. The final results show that this novel flexible mechanism can not only decrease its vertical coupling displacement of the moving mirror to 1.4 percent of its original amount, but also be capable of reducing the dimension of freedom (DOF) of the moving mirror to one dimension effectively, which provides valuable conclusion for the coming researchers.