A NOVEL EDDY-CURRENT COMPENSATION SCHEME FOR PULSED GRADIENT SYSTEMS

被引：26

作者：

WYSONG, RE

MADIO, DP

LOWE, IJ

机构：

[1] CARNEGIE MELLON UNIV,PITTSBURGH NMR CTR BIOMED RES,PITTSBURGH,PA 15213

[2] UNIV PITTSBURGH,DEPT PHYS & ASTRON,PITTSBURGH,PA 15260

来源：

MAGNETIC RESONANCE IN MEDICINE | 1994年 / 31卷 / 05期

关键词：

EDDY CURRENTS; PREEMPHASIS; GRADIENTS; FIXED TIME CONSTANT;

D O I：

10.1002/mrm.1910310517

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

We describe a modified pre-emphasis network that uses a number of fixed time constants, only whose amplitudes are adjustable. In comparison with variable time constant preemphasis networks we have used, the fixed time constant network is more effective and easier to set on the fly. We have further developed a method to set the fixed time constant network mathematically using a linear least squares technique.

引用

页码：572 / 575

页数：4

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