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US 4,309,687 AGranted
Resistance strain gauge
AssigneeSiemens Aktiengesellschaft
InventorsFerdinand Utner, Harald Vetter
Life of this patent
Estimating the term…
Abstract
A resistance strain gauge in which a resistance layer is applied to a carrier and provided with terminal elements is particularly characterized in that a patterned, thin, non-self-bearing resistance layer is materially bonded to a synthetic layer, and that the resistance layer is overlapped by a patterned, solderable contact layer and is materially bonded to the contact layer.
Claims6
A resistance strain gauge comprising:
- a synthetic layer;
- a resistance layer on said synthetic layer;
- terminals spaced apart on said resistance layer;
- said terminals formed in a patterned, solderable contact layer carried on and bonded to said resistance layer;
- and
- at least one narrow metal strip bonded to and extending at right angles transversely of said resistance layer intermediate and spaced from said terminals for reducing cross-contraction of said resistance layer.
3 more elements
Dependencies are inferred from the claim text.