Importance

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Abstract

Precision strain-gage transducers of low-cost construction, which lend themselves well to expression in the form of protectively-enclosed miniature load beams, are developed from sensing elements fine-blanked from wholly flat thin metallic sheet stock, the shaping and dimensioning of critical strain-responsive portions being controlled by the fine-blanking of both inner and outer edges of the element. Versatile mounting and loading provisions are conveniently associated with the element by way of simple openings formed laterally of the strain-responsive portions, and protective enclosure of sensitive strain gages and the strain-responsive portions is achieved by the transverse build-up of the element with stamped sheet-stock flanges affixed and sealed to it at spaced positions and to ends of a surrounding tubular bellows.

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First Claim