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US 4,785,275 AGranted
Strain gauge
AssigneeVDO Adolf Schindling AG
InventorWolfgang Adamitzki
Life of this patent
Estimating the term…
Abstract
A strain gauge has two metallic resistance layers, contact layers associated therewith, and a support for holding the strain gauge. A partially conductive insulation layer is disposed between the two resistance layers.
Claims18
A strain gauge comprising
- a support;
- contact layers for making electrical contact between the strain gauge and an external circuit;
- a plurality of superimposed metallic resistance layers, said resistance layers being disposed on the support and being located between the support and said contact layers;
- a partially conductive insulation layer disposed between and in contact with said resistance layers;
- and wherein
- an uppermost one of said resistance layers is connected between one of said contact layers disposed at one end of the gauge and a second of said contact layers disposed at a second end of the gauge, a bottom one of said resistance layers located between said support and said uppermost resistance layer being electrically connected to said uppermost resistance layer by said partially conductive insulation layer to improve a gauge factor of the strain gauge.
3 more elements
Dependencies are inferred from the claim text.