Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1987-04-30
1988-07-12
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
62 50, G01R 3320
Patent
active
047572612
ABSTRACT:
An NMR instrument incorporating a cryogenic magnet includes a constant pressure device to maintain the pressure of cryogenic vapors at a constant value whereby a stable magnetic environment is maintained.
REFERENCES:
patent: 3827246 (1974-08-01), Moen et al.
patent: 3864928 (1975-02-01), Eigenbrod
patent: 3878691 (1975-04-01), Asztalos
patent: 4652824 (1987-03-01), Oppelt
Berkowitz Edward H.
Cole Stanley Z.
Fisher Gerald M.
Tokar Michael J.
Varian Associates Inc.
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