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. 09, 1991
Filed:
Jun. 02, 1989
Applicant:
Inventor:
John D Young, Rexford, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01R / ; G01R / ;
U.S. Cl.
CPC ...
324238 ; 324225 ;
Abstract
The present invention is an inspection instrument of the type which reacts to induced eddy currents in a workpiece to be inspected and includes a probe having at least a first probe coil. The instrument further includes a bridge circuit having the first probe coil connected in a first bridge arm. The bridge circuit also has input and output terminals. Connecting cable connects the instrument to a remote signal interpretation unit, and individual buffers connected between each of the output terminals and the cable isolate the capacitive of the cable from the bridge circuit.