The Research of Period Measuring Instruments on Zero Power Assembly Based on DSP(In Chinese)

In order to improving measure precision and anti-interference capacity,and respond to the digital trend,a new technique to measure reactor period is promoted,which is based on the DSP technique,calculate period with least- squares-fitting method.The systematic design is promoted,in which TMS320F2812 chip is chosen as the Central Processing /Controlling unit and software design is based on DSP/BIOS embedded operating system.Testing of both a simulation of the lab environment and an experiment shows that,as expected,the new TMS320F2812 based reactor period inspection equipment has excellent anti-interference capacity,high precision and fast response time, all of which prove that it has good prospective.

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