| 摘要 |
PURPOSE:To confirm spectrum variation without using a weak chemical bond recognized between carbon and hydrogen even in complex fission pattern of a signal, by impressing a high-frequency pulse train or a low intensity high frequency on an observing nucleus. CONSTITUTION:The high frequency generated from a high frequency oscillator 5 is sent to a coil 3 as high-frequency pulse through a gate 6, the induced signal is taken out by the resonance accompanied with the pulse irradiation through a gate 7, and sent to a demodulating circuit 8. The free induction damping signal (FID) obtained by the demodulation is sent to a computer 10 through and A/D converter 9, subjected to storing and integrating processing, further to Fourier transform processing. High frequency generated from a decoupling high frequency oscillator 11 is damped, demodulated, then sent to an irradiating coil 4. An FID1 generated after pulse irradiation, and an FID2 performed again after suitable time interval are obtained to improve the integrating function of a nuclear magnetic resonance apparatus.
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