低场永磁磁共振系统高稳定匀场电流放大器设计
A High-stability Shimming Current Amplifier Design for Low-field Permanent Magnet NMR Systems
低场永磁磁共振系统高稳定匀场电流放大器设计 |
| 卢星云, 姚守权, 徐俊成, 蒋瑜 |
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A High-stability Shimming Current Amplifier Design for Low-field Permanent Magnet NMR Systems |
| LU Xingyun, YAO Shouquan, XU Juncheng, JIANG Yu |
| 图10 主动匀场前后结果对比. (a)主动匀场前的FID信号（左）和对应频谱（右）；(b)使用匀场电流放大器匀场后的FID信号（左）和对应频谱（右）；(c)使用商用匀场电源匀场后的FID信号（左）和对应频谱（右） |
| Fig. 10 Comparison of results before and after active shimming. (a) FID signal (left) and its spectrum (right) before active shimming; (b) FID signal (left) and its spectrum (right) after shimming using the shimming current amplifier; (c) FID signal (left) and its spectrum (right) after shimming using a commercial shimming power supply. |
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