Loading patent…
AssigneeNokia Technologies Oy
InventorsDiarmuid O'CONNELL, Nicholas M. JEFFERS, Oliver BURNS
Estimating the term…
A strain sensor comprises includes a viscous piezoresistive element embedded or encapsulated within a solid, flexible, resilient packaging element, and contact means contactable from the exterior of the strain sensor and defining an electrical path through or along at least a portion of the viscous piezoresistive element, the resistance of the electrical path varying with deformation of the strain sensor. The invention allows the high gauge factor of a viscous piezoresistive material to be taken advantage of in a practical device by containing the material within a packaging element. The packaging element ensures a consistent output response as a function of deformation of the strain sensor and enables the strain sensor to detect time-varying forces due to the resilient nature of the packaging element.
A strain sensor comprising a viscous piezoresistive element encapsulated within a packaging element, the strain sensor further comprising at least one contact which is configured to be contacted from an exterior of the strain sensor and defining an electrical path through or along at least a portion of the viscous piezoresistive element, and wherein the resistance of the electrical path varies with deformation of the strain sensor.
(canceled)
Dependencies are inferred from the claim text.