Gradient amplifier and magnetic resonance tomography apparatus e

Details Gradient amplifier and magnetic resonance tomography apparatus e Gradient amplifier and magnetic resonance tomography apparatus e

1998-02-17

2000-02-15

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01V 300

Patent

active

060257202

ABSTRACT:
A gradient amplifier for a nuclear magnetic resonance tomography apparatus has at least one control arrangement with a comparator and a controller and a control input for a digital control word, by means of which a current transmission function of the control arrangement can be selected from several predetermined transmission functions. A nuclear magnetic resonance tomography apparatus includes such a gradient amplifier, as well as a control word producing source for producing the digital control words. The gradient amplifier and the tomography apparatus can easily be adjusted to different controller characteristics, without the changeover requiring a manual calibration.

REFERENCES:
patent: 5066914 (1991-11-01), Vavrek et al.
patent: 5227728 (1993-07-01), Kaufman et al.
patent: 5237277 (1993-08-01), Lenz
patent: 5270657 (1993-12-01), Wirth et al.
patent: 5442290 (1995-08-01), Crooks

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