The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 1986
Filed:
Dec. 27, 1983
Walter P Kistler, Bellevue, WA (US);
Kistler-Morse Corporation, Redmond, WA (US);
Abstract
An isotropic strain sensor having four mounting points interconnected by four legs, two of which are bowed toward each other and two of which are bowed away from each other. A strain sensing element mounted on at least one of the legs provides an electrical indication of the deflection of the leg. As a result, the strain sensor measures isotropic strains in an object to which the strain sensor is attached through the mounting points. Another embodiment of the strain sensor utilizes three mounting points interconnected by legs, two of which are bowed outwardly and one of which is bowed inwardly. Both embodiments of the strain sensor produce outputs that are a nonlinear function of the sensed isotropic strain. This nonlinear characteristic allows the strain sensor to provide an output that is a linear function of the load applied between the center and outer periphery of a freely supported disc that has a strain that is a nonlinear function of the applied load.