| Summary: | 碩士 === 國立成功大學 === 電機工程學系專班 === 94 === The technology of digital signal setting on fuze by electromagnetic induction transmission is contactless transmission of digital signal data,for example target velocity,position,and zaimuth acquired from GPS, radar and laser measured data between the fire control system and fuze can be realized through separate transformer.
The core of electromagnetic transmission is the separate transformer.We analyzed the electromagnetic couple loop of the transformer by FEM software and gained the result that how the distribution of the magnetic flux and magnetic field intensity and the current of primary coil and secondary coil with frequency of the signal,the magnitude and position of coil and core, influence of signal transfer on fuze by dint of gaps and counts of the coil and permability of magnetic core. After has made the rule was gained from the result,we established the model and designed the series resonant converter circuits to drive the loop. We simulated the circuits by ORCAD and ISSPICE to realize that the digital signal can be translated from setter to fuze.
After putting the circuits and coil into experiment,induced digital signal voltage can be obtained from secondary coil,its frequency trend is in agreement with the frequency of signal,and the power of fuze gained from the loop can serve CMOS circuits.
Though simulation and experiment,the paper expounds the feasibility and validity of this idea.
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