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:
Nov. 22, 1994
Filed:
Dec. 02, 1991
Applicant:
Inventors:
David S Nyce, Apex, NC (US);
Wade D Peterson, Morrisville, NC (US);
Theophile R Lerebours, Cary, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
32420713 ; 32420712 ; 32420722 ;
Abstract
A magnetostrictive linear position transducer of the type having an acoustic magnetostrictive waveguide for propagating acoustic pulses generated by the interaction of a permanent magnetic field with a periodic excitation magnetic field. The mode convertor for converting acoustic pulse into an electrical signal indicative of the passage of an acoustic pulse propagated pat the mode convertor location along the waveguide includes a passband type filter for improving the detectability of the acoustic signal.