Patent ID: 6541972
Filing Date: 2003-04-01
Classification: G01R

Abstract:
A magnetic resonance apparatus which includes:a gradient system for generating L gradient fields in a measuring volume of the apparatus, which gradient system includes a number of N (N>L) mutually independent channels, each of which includes a gradient amplifier, with a signal input and an output and a gradient coil connected to the output of the gradient amplifier, and a conversion unit provided with N outputs which are connected to the N signal inputs of the N gradient amplifiers, respectively and with N inputs in two groupings, a first grouping including L inputs and a second grouping including Nâˆ’L inputs, wherein the L inputs are arranged to receive L gradient signals representing the gradient fields to be generated, wherein the Nâˆ’L inputs are arranged to receive Nâˆ’L other signals which are selectable independently of the gradient signals, and wherein the conversion unit is arranged to convert, in accordance with a conversion algorithm stored in the conversion unit, and at least the L gradient signals applied to the inputs together with the selected Nâˆ’L other signals applied to the Nâˆ’L inputs into N control signals for controlling the N gradient amplifiers.