Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-02-02
1977-09-27
Tokar, M.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 5R, G01R 3308
Patent
active
040514293
ABSTRACT:
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.
REFERENCES:
patent: 3699428 (1972-10-01), Leane
patent: 3720816 (1973-03-01), Keller
patent: 3777254 (1973-12-01), Kleiman
patent: 3873909 (1975-03-01), Ernst
patent: 3886439 (1975-05-01), Laukien
Higuchi Hisashi
Imanari Mamoru
Shimizu Shozo
Takeuchi Makoto
Nihon Denshi Kabushiki Kaisha
Tokar M.
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