Versatile strain sensor employing magnetostrictive electrical conductors

A strain sensor includes a load carrying body configured to strain in response to a load applied along a load path. The sensor further includes a magnetostrictive electrical conductor affixed to the body but out of the load path. Application of the load causes the body to strain, which in turn resul...

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Bibliographische Detailangaben
Hauptverfasser: Schroeder, Thaddeus, Taye, Elias, Lequesne, Bruno
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A strain sensor includes a load carrying body configured to strain in response to a load applied along a load path. The sensor further includes a magnetostrictive electrical conductor affixed to the body but out of the load path. Application of the load causes the body to strain, which in turn results in a proportional stress being imparted to the magnetostrictive conductor, altering its magnetic permeability. A circuit is electrically connected to the conductor to detect such changes in permeability, which are indicative of the applied load.