| 摘要 |
A multiple tuning circuit is offered which is for use in a nuclear magnetic resonance spectrometer and which has a resonant circuit having improved resistance to RF voltages. If high RF power is injected, electric discharge is unlikely to occur. A sample coil and inductors together form a balanced resonant circuit where the RF amplitude voltage becomes zero near the center point of the sample coil. Each of the inductors is connected with the sample coil via a capacitive element. An RF voltage produced across the sample coil and an RF voltage produced across each inductor are not added up.
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