Fabricated strain sensor

G - Physics – 01 – L

Patent

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Details

G01L 1/22 (2006.01) H01L 51/40 (2006.01)

Patent

CA 2562695

A method of forming a strain sensor from a polymeric film includes the steps of selectively irradiating a surface of the polymer with high energy radiation to change the composition of the polymer and increase the electrical conductivity in selected portions of the surface. The radiation can create carbonized particles or metallic particles within the polymer and the changes in interparticle gaps between conducting particles in the polymer will result in strain dependent electrical properties in the treated polymer.

La présente invention a trait à un procédé de formation d'un capteur de contrainte à partir d'un film polymérique comprenant les étapes d'irradiation sélective d'une surface du polymère avec un rayonnement de haute énergie pour modifier la composition du polymère et accroître la conductivité électrique dans des portions choisies de la surface. Le rayonnement peut créer des particules carbonisées ou des particules métalliques au sein du polymère et les modifications dans les espaces interparticulaires entre les particules conductrices dans le polymère vont entraîner l'apparition de propriétés électriques dépendantes de la contrainte dans le polymère traité.

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