Patent ID: 9065045
Filing Date: 2015-06-23
Classification: H01L,Y10T

Abstract:
1. An apparatus for harvesting electrical power, the apparatus comprising: a magnetostrictive component having an internal pre-stressed magnetostrictive core, wherein the internal pre-stress is created within the magnetostrictive core during material processing of the magnetostrictive core, wherein a magnetic property of the magnetostrictive core is configured to change with changes in stress within the magnetostrictive core along at least one direction within the magnetostrictive component, wherein changes of stress within the magnetostrictive core are at least partially due to changes in an external mechanical load applied to the apparatus, and consequently changes the magnetic property, wherein the magnetostrictive component is also configured such that the change in the magnetic property will result in a change in magnetic flux, which change can be used to generate electrical power.