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Title: Mechanical vibration to electrical energy converter

Abstract

Electromechanical devices that generate an electrical signal in response to an external source of mechanical vibrations can operate as a sensor of vibrations and as an energy harvester for converting mechanical vibration to electrical energy. The devices incorporate a magnet that is movable through a gap in a ferromagnetic circuit, wherein a coil is wound around a portion of the ferromagnetic circuit. A flexible coupling is used to attach the magnet to a frame for providing alignment of the magnet as it moves or oscillates through the gap in the ferromagnetic circuit. The motion of the magnet can be constrained to occur within a substantially linear range of magnetostatic force that develops due to the motion of the magnet. The devices can have ferromagnetic circuits with multiple arms, an array of magnets having alternating polarity and, encompass micro-electromechanical (MEM) devices.

Inventors:
 [1];  [2]
  1. Tijeras, NM
  2. Albuquerque, NM
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
961585
Patent Number(s):
7,498,681
Application Number:
11/688,981
Assignee:
Sandia Corporation (Albuquerque, NM)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION

Citation Formats

Kellogg, Rick Allen, and Brotz, Jay Kristoffer. Mechanical vibration to electrical energy converter. United States: N. p., 2009. Web.
Kellogg, Rick Allen, & Brotz, Jay Kristoffer. Mechanical vibration to electrical energy converter. United States.
Kellogg, Rick Allen, and Brotz, Jay Kristoffer. Tue . "Mechanical vibration to electrical energy converter". United States. https://www.osti.gov/servlets/purl/961585.
@article{osti_961585,
title = {Mechanical vibration to electrical energy converter},
author = {Kellogg, Rick Allen and Brotz, Jay Kristoffer},
abstractNote = {Electromechanical devices that generate an electrical signal in response to an external source of mechanical vibrations can operate as a sensor of vibrations and as an energy harvester for converting mechanical vibration to electrical energy. The devices incorporate a magnet that is movable through a gap in a ferromagnetic circuit, wherein a coil is wound around a portion of the ferromagnetic circuit. A flexible coupling is used to attach the magnet to a frame for providing alignment of the magnet as it moves or oscillates through the gap in the ferromagnetic circuit. The motion of the magnet can be constrained to occur within a substantially linear range of magnetostatic force that develops due to the motion of the magnet. The devices can have ferromagnetic circuits with multiple arms, an array of magnets having alternating polarity and, encompass micro-electromechanical (MEM) devices.},
doi = {},
url = {https://www.osti.gov/biblio/961585}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {3}
}

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Works referenced in this record:

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