A novel eddy current compensation scheme for pulsed gradient systems
✍ Scribed by R. E. Wysong; D. P. Madio; Irving J. Lowe
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 365 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
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 have further developed a method to set the fixed time constant network mathematically using a linear least squares technique.
📜 SIMILAR VOLUMES
## 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 exi