Precision turntable rotation in a vacuum atmosphere

Details Precision turntable rotation in a vacuum atmosphere Precision turntable rotation in a vacuum atmosphere

1973-04-10

1976-03-09

Cardillo, Jr., Raymond F.

Telegraphy

Systems

Simplex-reversing periodic

178 66DD, 178 66P, 178 67A, 1791003V, 1791004C, 360 73, 360102, H04N 576, G11B 1100, G11B 1700

Patent

active

039432750

ABSTRACT:
Fluid from a hydraulic pressure source is utilized to rotate and support a turntable in a vacuum chamber. Signals representative of the rotational velocity of the turntable are utilized to control the hydraulic pressure of the fluid rotating the turntable.

REFERENCES:
patent: 3030452 (1962-04-01), Uritis
patent: 3381085 (1968-04-01), Johnson et al.
Magnetic Bearing, Brandenberg, IBM Tech. Disclosure Bulletin, Vol. 3, No. 1, 6/60, p. 13.

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