LI Kaihu GUO Chunlong LI Rui LI Deming. Experimental research on an FFT based ultra-low current ripple observation system[J]. Nuclear techniques, 2013, 36(2): 020501
LI Kaihu GUO Chunlong LI Rui LI Deming. Experimental research on an FFT based ultra-low current ripple observation system[J]. Nuclear techniques, 2013, 36(2): 020501 DOI: 10.11889/j.0253-3219.2013.hjs.36.020501.
Experimental research on an FFT based ultra-low current ripple observation system
Background: The magnets exciting current ripple is required to be less than 10–6 for the proton medical accelerator under construction.Purpose: In order to observe the ultra-low current ripple
we design and set up a testing platform based on the ADC card used for digitalized power supplies.Methods: The system performance is analyzed
tested
and the observation is compared with the oscilloscope measurement.Results: Using this platform
the ultra-low current ripples are observed on several magnet power supplies.Conclusions: The method is experimentally proved suitable for the observation of current ripples of 10–6versus hundreds DC current.