Force compensator for inertial mass measurement instrument

Details Force compensator for inertial mass measurement instrument Force compensator for inertial mass measurement instrument

1993-11-05

1996-01-30

Wong, Peter S.

Weighing scales

Shock absorber, damper

177185, 177189, 177210FP, 73668, G01G 2110, G01G 314, G01N 2900

Patent

active

054882036

ABSTRACT:
In an inertial mass measurement instrument, an active force compensator compensates for inertial forces transmitted by an oscillating elastic element to a primary support of the instrument. The compensator applies equal and opposite compensating forces to the primary support along an effective line of action of the oscillating element. Application of the compensating forces result in a substantially zero net acceleration of the primary support and avoids measurement inaccuracies attributable to changes in properties of secondary support elements.

REFERENCES:
patent: 2901239 (1959-08-01), Sethna
patent: 3926271 (1975-12-01), Patashnick
patent: 4391338 (1983-07-01), Patashnick et al.
patent: 4696181 (1987-09-01), Rupprecht et al.
patent: 4696181 (1987-09-01), Rupprecht et al.
patent: 4838371 (1989-06-01), Rupprecht et al.
patent: 4929874 (1990-05-01), Mizuno et al.

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