Webb, Burden, Robinson & Webb
Nuclear magnetic resonance apparatus
 A nuclear magnetic resonance apparatus incorporating a first trans-receiver coil, an internal lock coil, a decoupling coil, means for tuning said coils to desired frequencies, a first trans-receiving system for supplying the first trans-receiver coil with a first nuclear (such as .sup.1 H) resonance RF wave and detecting the first nuclear resonance F.I.D. signal, a second trans-receiving system for supplying the first trans-receiving coil with a second nuclear (such as .sup.13 C) resonance RF wave and detecting the second nuclear resonance F.I.D. (Free Inductance Decay) signal, a third trans-receiving system for supplying the internal lock coil with a third nuclear (such as .sup.2 D) resonance RF wave and detecting the third nuclear resonance signal, and a transmission system for supplying the first nuclear resonance RF wave to the decoupling coil, it being possible in said apparatus to observe different types of nucleus, viz; .sup.1 H and .sup.13 C without removing the internal lock by employing a third nucleus such as .sup.2 D so that the first and second nuclear spectrum can be observed at high resolution by first nuclear decoupling. 
Nihon Denshi Kabushiki Kaisha
G
G01R
inventional
Mamoru Makoto Shozo Hisashi
Imanari Takeuchi Shimizu Higuchi