Force transducer

Details Force transducer Force transducer

1991-09-30

1993-07-27

Eisenzopf, Reinhard J.

Measuring and testing

Dynamometers

Responsive to force

177211, G01L 122

Patent

active

052302520

ABSTRACT:
A load cell incorporates two identical sensing beams equipped with resistance-type strain gauges. The beam geometry is such that a large constant shear strain is developed at the strain gauge locations. Two different strain gauge arrangements are used to provide linear response to axially applied forces while rendering the transducer insensitive to extraneous forces and couples. The geometry allows a fully redundant set of gauges to be placed on the beams for high reliability applications. Bridge balance and temperature compensation are accomplished by optimizing the direct deposited thin film gauge material which are then laser trimmed.

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patent: 3958456 (1976-05-01), Jacobson
patent: 3969935 (1976-07-01), Shoberg
patent: 4009608 (1977-03-01), Ormond
patent: 4162628 (1979-07-01), Oetjen et al.
patent: 4423793 (1984-01-01), Caris
patent: 4463614 (1984-08-01), Lee
patent: 4546838 (1985-10-01), Ormond
patent: 4576053 (1986-03-01), Hatamura
patent: 4657097 (1987-04-01), Griffen

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