Recorder to high magnetic field environment and a piezoelectric motor used to drive the platen

摘要

It is a method and apparatus for generating a print of physiological information from a patient 4 undergoing magnetic resonance scan in magnetic resonance system 9. The magnetic resonance system 9 includes a main magnet for generating a static field B ₀ through the examination region 12. 5 Gauss line in, particularly, the recorder device 38 is placed adjacent to the patient in the examination region where some patients is the total field. The piezoelectric motor 68 drives the pinion 72 for driving the platen roller 62 of print assembly 60. Generates a driving signal 90 of the stepping motor electromechanical, secondary control panel 74, a primary control panel 70 converts the drive signal 100 of the piezoelectric motor drive signal 90 of the stepping motor of the electromechanical.