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:
Jan. 06, 2009
Filed:
Jan. 03, 2007
Frank Schneider, Karlsruhe, DE;
Birk Schütz, Ettlingen, DE;
Frank Schneider, Karlsruhe, DE;
Birk Schütz, Ettlingen, DE;
Bruker Biospin GmbH, Rheinstetten, DE;
Abstract
A method for driving a power supply () of a magnetic field coil () for generating a predetermined magnetic field profile(,t) in the volume under investigation of a nuclear magnetic resonance (=NMR) apparatus (), wherein for compensation of distortions caused by the apparatus, an input signal i(t) is predistorted, that predetermines the time behavior of the magnetic field profile, wherein the power supply () is driven by the predistorted signal o(t), is characterized in that the predistortion is performed using a transfer function of the form with s=σ+jω, s εC, and with N≧2, wherein O(s) is the Laplace transform of o(t), and I(s) is the Laplace transform of i(t). This inventive method improves compensation of distortions of one or more gradient fields including their correlations during rapid switching.