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:
Dec. 06, 2005
Filed:
Jul. 06, 2004
Wolfgang Frantz, Karlsruhe, DE;
Wolfgang Frantz, Karlsruhe, DE;
Bruker BioSpin GmbH, Rheinstetten, DE;
Abstract
The invention concerns a method for charging a magnet arrangement () comprising a first partial region () which can be superconductingly short-circuited via an additional switch (), and a second partial region (), wherein the two partial regions () generate, in an investigational volume (), gradients of second order having different signs. A magnetic field dependence B* is measured close to the desired operating state of the magnet arrangement () and operating currents are determined for each of the two partial regions () at which the overall magnetic field B in the volume () under investigation is freed from a magnetic field gradient of second order. These operating currents are set thereby taking into consideration the inductive coupling of the partial regions () through initially charging of the overall magnet arrangement () and, after closing of the additional switch (), through continuation of charging only in the second partial region (). The magnetic field homogeneity of the magnet arrangement () can thereby be improved in a simple and inexpensive manner.