永久磁铁核磁共振实验仪如何获得清晰的共振信号

Methods to obtain distinct resonant signal with permanent magnet in unclear magnetic resonance

用永久磁铁作为外场的核磁共振实验仪观察共振吸收信号和测量1H、19F的g因子时,如果仪器没有处于最佳状态,将找不到清晰的共振信号。如何对仪器进行适当的调整和技术处理,得到清晰的核磁共振吸收信号,本文对几个相关问题作了探讨和说明。

In nuclear magnetic resonance,using permanent magnet to provide external magnetic field,we can observe the nuclear resonant signal and determine the g factor of 1 H and 1 9F.If the instrument is not at the best working state,clear resonant signal will not appear.This paper mainly discussed several methods to obtain distinct nuclear magnetic resonant signal.