CPC F25B 49/022 (2013.01) [F25B 9/145 (2013.01); F25B 2309/1427 (2013.01); F25B 2500/12 (2013.01); F25B 2500/13 (2013.01); F25B 2600/0253 (2013.01)] | 20 Claims |
1. A method of reducing noise in a cryogenic cooling system, the method comprising:
monitoring vibrations in the cryogenic cooling system during operation of only a single mechanical refrigerator;
measuring vibration amplitudes in the monitored vibrations;
determining transfer functions and structural resonance coupling for the cryogenic cooling system based on the measured vibration amplitudes; and
modulating an operating frequency of the mechanical refrigerator based on the determined transfer functions and structural resonance coupling so as to reduce the vibration amplitudes of the monitored vibrations.
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