Method and system for adjusting centrifuge operation parameters

Details Method and system for adjusting centrifuge operation parameters Method and system for adjusting centrifuge operation parameters

1994-07-07

1995-07-11

Cooley, Charles E.

Imperforate bowl: centrifugal separators

With condition responsive means

For controlling drive of driven means within bowl

494 10, 494 14, 494 37, 494 61, 210145, 210739, 210787, B04B 1300

Patent

active

054316200

ABSTRACT:
A method and system of determining an operation parameter for a centrifuge includes measuring one or more physical characteristics of a rotor interchangeably supported by a rotor drive. In the preferred embodiment, windage is measured at a first rotational speed and a speed-dependent signal is generated to adjust a vacuum system based upon changes in rotational speed of the rotor. Changes in windage may also be used as a basis for adjusting a refrigeration circuit. Either as an alternative or in addition to monitoring windage, the moment of inertia can be measured and used to adjust adaptive circuitry. For example, the drive circuitry may be adjusted based upon a determination of inertia as the physical characteristic of interest. The method and system isolate inertia and windage as the main forms of resistance to acceleration of the rotor.

REFERENCES:
patent: 3409212 (1968-11-01), Durland et al.
patent: 4449965 (1984-05-01), Strain
patent: 4451248 (1984-05-01), Williams
patent: 4509940 (1985-04-01), Romanauskas
patent: 4693702 (1987-09-01), Carson et al.
patent: 4827197 (1989-05-01), Giebeler
patent: 4857811 (1989-08-01), Barrett et al.
patent: 5171206 (1992-12-01), Marque
patent: 5235864 (1993-08-01), Rosselli et al.

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