Folded wave guide

• US 20050046513A1
• Filed: 09/03/2003
• Published: 03/03/2005
• Est. Priority Date: 09/03/2003
• Status: Active Grant

• Current Assignee: Temposonics Incorporated
• Original Assignee: MTS Systems Corporation (Illinois Tool Works Inc.)
• Inventors: Sprecher, Arnold F. Jr., Raphalovitz, Alexander, Nyce, David S.
• Granted Patent: US 6,919,779 B2
• Time in Patent Office: Days
• US Class Current: 333/148
• CPC Class Codes: G01D 5/485 using magnetostrictive devices

Abstract

A magnetostrictive system is shown wherein there is included a wave guide but no return wire. The wave guide is folded and acts as the completed wire (whether solid or hollow) for conducting current for the current input pulse.

Claims

1. A magnetostirctive device, comprising:

a waveguide, said waveguide being folded and forming two substantially parallel legs;

a mode converter, said mode converter surrounding at least a portion of at least one of said legs of said waveguide; and

said legs being electrically insulated from each other.

2. The device of claim 1, wherein said legs being electrically insulated from each other;

said fold of said waveguide is located at the farthest distance from said mode converter;

supports a sonic pulse in response to a current pulse applied to said waveguide; and

3. The device of claim 1 which uses a current pulse applied to said waveguide to generate a sonic pulse in response to the current pulse, the sonic pulse being supported by the waveguide, wherein said mode converter supplies an electrical output in response to the sonic pulse traveling down said waveguide.