Measuring and testing – Dynamometers – Responsive to multiple loads or load components
Patent
1986-05-21
1987-02-03
Woodiel, Donald O.
Measuring and testing
Dynamometers
Responsive to multiple loads or load components
364508, G01L 516
Patent
active
046401393
ABSTRACT:
A strain gauge device for measuring multicomponent forces and torques comprises a cylindrical body clamped at one end and attached at a free end to a force-transmission cup partially surrounding the cylinder. At least seven wire strain gauges are attached to the external surface of the cylinder in three parallel planes extending transversely to the axis of the cylinder. The gauges include longitudinally extending gauges, circumferentially extending gauges and gauges oriented at a 45.degree. angle with respect to the transversely extending planes. The gauges are electrically coupled parallel to one another in respective circuits. A microprocessor may be connected to the circuits for detecting the voltage drops across the strain gauges and calculating therefrom the orthogonal components of an unbalanced force and a torque applied to the measuring body.
REFERENCES:
patent: 2478720 (1949-08-01), Sourwine et al.
patent: 3780573 (1973-12-01), Reus
patent: 3939704 (1976-02-01), Zipin
Cunningham et al, "Two Devices for Measuring the Forces Acting on the Human Body During Walking", Society for Experimental Stress Analysis, vol, IX, No. 2, 1952, pp. 75-90.
Siemens Aktiengesellschaft
Woodiel Donald O.
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