NASA NTRS · 19920040172
Resonant cryogenic chopper
Abstract
An account is given of the design features, construction, and performance of a both mechanically and thermally robust, resonant cryogenic chopper operating at 4.2 K. The chopper can occult a 2.54-cm aperture at 4.5 Hz, with approximately 1-mW dissipation. The controllability of the stator and rotor magnetic fields facilitates performance optimization and the determination of any possible interference effects. Attention is given to long-term amplitude stability determinations.
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Page, Lyman A., Cheng, Edward S., Meyer, Stephan S.. 1992-01-01. Resonant cryogenic chopper. https://ntrs.nasa.gov/citations/19920040172
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