Chemistry: physical processes
Patent
1973-12-28
1976-10-19
Krizmanich, George H.
Chemistry: physical processes
B04B 1104
Patent
active
039866637
ABSTRACT:
A first unit rotating with the centrifugal rotor forms an electric resonance circuit having at least one variable oscillation property; and a sensing member rotating with the rotor is arranged to sense a displacement of an interface formed between two media undergoing centrifugal separation in the rotor, the sensing member acting to change the variable oscillation property of the resonance circuit in response to a sensed displacement. A second unit separate from the rotor comprises means for inductively transferring a signal to the resonance circuit and also includes means for sensing a change of the load by the resonance circuit on the signal transferring means in response to a change of the variable oscillation property of the resonance circuit.
REFERENCES:
patent: 3189268 (1965-06-01), Nilsson
patent: 3261546 (1966-07-01), Gruver
patent: 3593915 (1971-07-01), Steinacker
Aalsaeter, administrator by Sture
Jonsson, deceased Rolf A.
Alfa-Laval AB
Hapgood Cyrus S.
Krizmanich George H.
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