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:
Sep. 19, 1995
Filed:
Apr. 12, 1994
Applicant:
Inventor:
Volker Weissenberger, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
324322 ; 324312 ;
Abstract
In a method for the compensation of eddy currents caused by gradients in nuclear magnetic resonance apparatus a gradient pulse is activated and a nuclear magnetic resonance signal is excited in a slice of a spatially extended phantom, the nuclear magnetic resonance signal is acquired after the end of the gradient pulse and during the decay time of the eddy currents caused by said gradient pulse and the eddy current magnetic field is identified from the phase curve of this nuclear magnetic resonance signal. A filter for the gradient system that generates the gradient pulse is calculated on the basis of the eddy current magnetic field identified in this way.