Electrical resistors – Strain gauge type – Dynamometer type
Patent
1978-04-27
1979-09-04
Albritton, C. L.
Electrical resistors
Strain gauge type
Dynamometer type
73141A, G01L 122
Patent
active
041669975
ABSTRACT:
A load disc having an annular flex plate connected to a pair of parallel mounting plates through respective support rings. The support rings are of unequal diameters so that compressive or tensile forces applied to the mounting plates cause the flex plate to spherically deform. The deformation of the flex plate produces tensile and compressive strains on opposite faces of the flex plate which are measured by strain gauges mounted on opposite faces of the flex plate. The flex plate is recessed away from the support rings at the points of attachment thereto so that the support rings intersect the flex plate at its neutral plane. Consequently, spherical deformation of the flex plate does not tend to expand or contract the support rings thereby allowing freer deformation of the flex plate and desensitizing the flex plate against lateral forces applied between the mounting plates. The load disc is typically employed beneath the foot pad of a vertical member in order to measure the quantity of material contained in a vessel which is supported by the vertical member.
REFERENCES:
patent: 3221283 (1965-11-01), Ziggel
Albritton C. L.
Kistler-Morse Corporation
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