Force measuring platform and load cell therefor using strain gages to measure shear forces
AssigneeAdvanced Mechanical Technology, Inc.
InventorsForest J. Carignan, Nathan H. Cook
Life of this patent
Estimating the term…
Abstract
In a force measuring platform, a top plate 12 is supported on tubular load cells 16. The load cells have strain gages to measure the strain due to the horizontal shear forces. The "shear" strain gages also measure moments about the Z axis when properly placed in a bridge circuit. Strain gages mounted to measure vertical strain indicate vertical forces and moments about horizontal axes.
Claims8
A force measuring apparatus comprising a plate supported on a plurality of load cells, each load cell comprising a cylindrical tubular column having a center axis perpendicular to the plate and having strain gages mounted thereon connected to measure the tensile or compressive strain occurring at 45.degree. to the axis of the load cell and associated with the strain due to forces or moments acting on the load cell parallel to the plate, the strain gauges of a plurality of load cells being interconnected to provide an indication of said forces or moments.
A force measuring apparatus comprising a plate supported on a plurality of load cells, each load cell comprising a cylindrical tubular column having a center axis perpendicular to the plate and having strain gages mounted thereon to measure tensile and compressive strain occurring at 45.degree. to the axis of the load cell and associated with the shear strain due to force applied transverse to the center axis of the load cell, the strain gages of a plurality of load cells being interconnected to provide an indication of said force.
Dependencies are inferred from the claim text.