Inductive coupling and tuning in NMR probes; Applications

Philip L. Kuhns; Martin J. Lizak; Sam Hyeon Lee; Mark S. Conradi

doi:10.1016/0022-2364(88)90157-6

Inductive coupling and tuning in NMR probes; Applications

Philip L. Kuhns, Martin J. Lizak, Sam Hyeon Lee, Mark S. Conradi

Department of Physics

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

Inductive coupling and tuning of NMR probes is ideally suited for certain applications because no direct electrical connections to the resonant circuit are required. The relatively transparent case of series-tuned link coupling is analyzed. It is shown that tuning and coupling adjustments are orthogonal and that most of the RF field comes from the main circuit, not the link. Applications of inductive tuning and coupling are suggested; including low-temperature NMR where Dewar space is restricted. An experimental comparison of conventional, link-coupled, and link-coupled and tuned circuits at 85 MHz is reported. Some novel VHF self-contained resonators are discussed and their performance is experimentally compared to conventional coils.

Original language	English
Pages (from-to)	69-76
Number of pages	8
Journal	Journal of Magnetic Resonance (1969)
Volume	78
Issue number	1
DOIs	https://doi.org/10.1016/0022-2364(88)90157-6
Publication status	Published - 1988 Jun 1

Bibliographical note

Funding Information:
We are grateful to J. J. H. Ackerman for helpful discussions. J. Schaefer is appreciated. This work was partly supported Petroleum Research Fund, administered by the American The encouragement through the generosity Chemical Society.

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abstract = "Inductive coupling and tuning of NMR probes is ideally suited for certain applications because no direct electrical connections to the resonant circuit are required. The relatively transparent case of series-tuned link coupling is analyzed. It is shown that tuning and coupling adjustments are orthogonal and that most of the RF field comes from the main circuit, not the link. Applications of inductive tuning and coupling are suggested; including low-temperature NMR where Dewar space is restricted. An experimental comparison of conventional, link-coupled, and link-coupled and tuned circuits at 85 MHz is reported. Some novel VHF self-contained resonators are discussed and their performance is experimentally compared to conventional coils.",

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