Patent · US Expired

Magnetic resonance apparatus with actuators for counteracting multi-order vibrational modes

US6353319B1 · kind B1 · utility

11Cited by

3References

30Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Peter Dietz · Bad Mergentheim, DE
Rudolf Roeckelein · Erlangen, DE
Winfried Arz · Koblenzer Straße, DE

Key dates

Filing date	Jun 30, 1999
Grant date	Mar 5, 2002
Priority date	—
Expiry date	Jun 30, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/3854
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A magnetic resonance apparatus has a gradient tube at which at least one gradient coil with current flowing therein in operation is arranged, and at which a number of elements for generating a force acting on the gradient tube as needed are arranged, with the positions of the elements being selected dependent at least on the vibratory mode of the gradient tube, so that a counteracting mode is excited given drive of the elements. The elements serving for the excitation of X and/or Y modes are distributed in the middle and around the circumference of the gradient tube with respect to the length of the gradient tube and/or the elements serving for the excitation of the Z mode are distributed along the length and the circumference of the gradient tube.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.