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:
Apr. 07, 1998
Filed:
Jul. 10, 1995
Applicant:
Inventors:
Stephen Williams Smith, Raleigh, NC (US);
Arnold Fred Sprecher, Jr, Raleigh, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01F / ; H04R / ;
U.S. Cl.
CPC ...
32420713 ; 7329 / ; 32420724 ; 367140 ;
Abstract
A local buffer circuit for use with a magnetostrictive transducer is disclosed wherein the magnetostrictive transducer includes a pickup coil and the local buffer circuit includes two diodes in parallel with the pickup coil to clip or short the energy produced in the pickup coil generated by an interrogation pulse, and also includes a common emitter amplifier to reduce the electrical impedance of the pickup coil, also in parallel with the pickup coil.