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A programmable eddy-current compensation system for MRI and localized spectroscopy

✍ Scribed by Martin E. Fry; Simon Pittard; Ian R. Summers; William Vennart; Frederick T. D. Goldie

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
466 KB
Volume
7
Category
Article
ISSN
1053-1807

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✦ Synopsis

Abstract

A programmable preemphasis system has been developed for eddy‐current compensation in gradient sets with or without active screening. Preemphasis parameters are nonvolatile but can be changed rapidly when working with interchangeable gradient sets. The design allows easy retrofit to existing systems. A method for setting the preemphasis is presented, together with specimen results.

πŸ“œ SIMILAR VOLUMES

A novel eddy current compensation scheme
A novel eddy current compensation scheme for pulsed gradient systems
✍ R. E. Wysong; D. P. Madio; Irving J. Lowe πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 365 KB

## Abstract 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 pre‐emphasis networks we have used, the fixed time constant network is more effective and easier to set on the fly. We