| 摘要 |
PURPOSE:To measure nuclear magnetic resonance (NMR) and electron spin resonance (ESR) simultaneously by switching the intensity of magnetostatic field between and NMR measurement level and an ESR measurement level on time-division mode. CONSTITUTION:A sample 2 is arranged between magnetostatic field producing coils 1 and a transmitting and receiving coil 3 is provided. Further, a high-frequency signal is supplied from a high-frequency oscillator 4 to the coil 3 through a gate 5 and the sample is irradiated with the signal. Then, a freely induced attenuation signal is sent to NMR memory 11N and an ESR memory 11E through a discriminating circuit 10. At such a time, a pulse programmer 14 is provided so as to switch the intensity of the magnetostatic field between the 1st level for NMR measurement and the 2nd level for ESR measurement on time-division mode. The discriminating circuit 10 is also switched synchronously. Thus, in intensity of the magnetostatic field is time-divided, an NMR and an ESR measurement are taken at the same time and set in the same measurement environment. |
