Extruded load cell

Details Extruded load cell Extruded load cell

1986-09-24

1987-07-07

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to force

7386204, 7386263, 338 5, G01L 122

Patent

active

046778624

ABSTRACT:
A force sensitive structural element comprising an extrusion of high strength aluminum alloy to which strain gages are attached and a base plate constructed of dissimilar material mounted in a housing. The height and coefficient of thermal expansion of the extruded member are selected relative to each of the height of the housing and coefficient of thermal expansion of the housing and the area of a resilient seal between the housing and a load carrying member attached to the extrusion. Variable magnitudes of expansion of the materials tends to collectively cancel the variation in barametric effects of thermal changes acting on the load cell.

REFERENCES:
patent: 2472047 (1949-05-01), Ruge
patent: 3161046 (1964-12-01), Farley
patent: 3427875 (1969-02-01), Saxl
patent: 3837222 (1974-09-01), Raskin

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