Abstract
Aiming at the arc plasma characteristics of high voltage circuit breaker, a set of multichannel, high speed, the synchronous detecting system is designed. The space distribution and time variation law of electric arc plasma, specially electric arc shape change law, are well reflected. Based on the ARM + CPLD + SDRAM detecting schemes, the system realized the functions of 64 groups optical fibers sampling, 4M/s sampling rate of every sampling channel, and the synchronous sampling. Through the detailed research and design to EMC, system error analysis, visual interface and database as well as the related interface program of ARM, CPLD, SDRAM and so on, has completed the multichannel, high speed and the real-time synchronized sampling, and mass data memory, computation, analysis, curve and animation demonstration and so on functions. The stability, feasibility and accuracy of the detecting system are proved by the practical application.
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