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中文摘要：
以连续波核磁共振实验为基础,结合他激核磁共振实验方法,分析研究了示波器上显示的氢核核磁共振信号.结果显示,由于射频振荡电路中晶体管的非线性作用使共振信号与激励信号混频,示波器显示混频中产生的差频信号,实验结果同时解释了振幅衰减频率升高的尾波现象,完善了现有核磁共振边限振荡器理论存在的不足.
英文摘要：
The H_1 nuclear magnetic resonance（NMR）signal which was based on both continuous wave NMR experiment and separately driven NMR experiment were studied.The results showed that H_1 NMR signal and excitation signal were mixed by nonlinear transistor,and oscilloscope display was the difference frequency signal.The paper also explained the coda waves with frequency increases and amplitude attenuation to improve the NMR deficiency marginal oscillator theory.
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