Abstract
A multi-try counter-meshing gears (CMG) discrimination device based on micro electromechanical system (MEMS) technology was designed for some specified information fields. The discrimination device consists of two groups of metal CMG, two pawl/ratchet mechanisms, two driving micromotors and two resetting micromotors, which make the CMG withdraw by raising the pawls. The energy-coupling element is a photoelectric sensor with a circular plate which is notched. Micromotor is fabricated using the ultraviolet LiGA (UV-LiGA) fabrication process and precision mechanical engineering. The discrimination device has the function which can automatically reset, with the correct resetting code, it can be tried another times.
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Foundation item: the National High Technology Research and Development Program (863) of China (No. 2003AA404210, 2005AA404250, 2003AA404210, 2006AA01Z443)
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Li, Sy., Chen, Wy., Zhang, Wp. et al. Multi-try counter-meshing gears discrimination device based on MEMS technology. J. Shanghai Jiaotong Univ. (Sci.) 13, 280–284 (2008). https://doi.org/10.1007/s12204-008-0280-8
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DOI: https://doi.org/10.1007/s12204-008-0280-8