MAGNETIC RESONANCE APPARATUS AND METHOD FOR THE OPERATION THEREOF

In method for operating a magnetic resonance apparatus that has a gradient power amplifier that supplies a voltage to a gradient coil, and a gradient power amplifier control processor that provides control a control signal thereto that predetermines the aforementioned voltage, and a simulation compu...

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Bibliographic Details
Main Authors KREISCHER LUDWIG, JULOSKI ALEKSANDAR, NOWAK STEFAN
Format Patent
LanguageEnglish
Published 17.03.2016
Subjects
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REGULATING
TESTING
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Summary:In method for operating a magnetic resonance apparatus that has a gradient power amplifier that supplies a voltage to a gradient coil, and a gradient power amplifier control processor that provides control a control signal thereto that predetermines the aforementioned voltage, and a simulation computer that models an operational characteristic of each of the gradient coil the gradient power amplifier, an actual current value of a current fed into the gradient coil by the gradient power amplifier is measured and a target current value of the current fed into the gradient coil by the gradient power amplifier is determined by the simulation computer, using the control signal as an input variable. A fault signal is generated as a function of a determined deviation in the actual current value from the target current value.
Bibliography:Application Number: US201514851317