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:
Feb. 24, 2009
Filed:
Feb. 23, 2005
Applicants:
Gabriel Daalmans, Höchstadt, DE;
Martin Steck, Steinheim, DE;
Inventors:
Gabriel Daalmans, Höchstadt, DE;
Martin Steck, Steinheim, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/83 (2006.01); G01R 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a device for detecting defects which are deep in electrically conductive materials in a non-destructive manner, comprising an excitation device provided with induction coils which are used to produce low frequency eddy currents in the material, and a receiving device for the magnetic field of the eddy currents, the magnetic field being modified by the defects, and the receiving device comprising a gradiometer magnetic field sensors with an integrated bridge circuit.