The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2014
Filed:
Sep. 26, 2012
The United States of America As Represented BY the Secretary of the Navy, Washington, DC (US);
Joseph P Teter, Darnestown, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An apparatus and a method for optimizing a Galfenol-type magnetostriction actuator. The method and apparatus includes an elongated Galfenol-type magnetostrictive bar, first coil and a second coil, orthogonal to the first coil, with the coils arranged and activated to optimize expansion and contraction in the bar. According to the apparatus and the method, the first coil pre-aligns the magnetic moments of the bar into a desired crystallographic orientation that allows for maximum expansion or contraction when under the influence of the magnetic field of the second coil.