摘要
用付里叶分析方法从理论上分析计算了磁场调制对谱线(单一或重迭的)的线宽、线形及幅值的影响,并将理论计算结果与激光磁共振谱的调制效应的实验结果作了比较,两者符合得很好。据此作者提出了对于采用调制相检技术的磁共振谱技术普遍适用的选择调制参数的方法、步骤和原则。
An analysis is made by Fourier Expansion method for the phase sensitive detection of magnetic resonance at the first and the second harmonics of modulation frequency. The effects of modulation amplitude on magnetic resonance linewidths, lineshapes and the first and the second derivative (or harmonics) signal intensities of single and overlap lines are examined. The related experimental results of LMR spectra of NO, agree with the calculation for Lorentzian and Gaussian lines. Suggestions for selecting the modulation parameters and searching for signal were proposed.
出处
《波谱学杂志》
CAS
CSCD
1990年第4期373-382,共10页
Chinese Journal of Magnetic Resonance
关键词
激光
磁共振
调制效应
相敏
检测
Laser magnetic resonance: Phase sensitive detection: Modulation sufects
