DE68925143D1 - Schaltungsanordnung mit doppelter Abstimmung für die verteilt lokalisierte Kapazität von Empfangsspulen - Google Patents

Schaltungsanordnung mit doppelter Abstimmung für die verteilt lokalisierte Kapazität von Empfangsspulen

Info

Publication number
DE68925143D1
DE68925143D1 DE68925143T DE68925143T DE68925143D1 DE 68925143 D1 DE68925143 D1 DE 68925143D1 DE 68925143 T DE68925143 T DE 68925143T DE 68925143 T DE68925143 T DE 68925143T DE 68925143 D1 DE68925143 D1 DE 68925143D1
Authority
DE
Germany
Prior art keywords
circuit arrangement
receiving coils
double tuning
distributed localized
capacity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE68925143T
Other languages
English (en)
Other versions
DE68925143T2 (de
Inventor
Albert P Zens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Varian Inc
Original Assignee
Varian Associates Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Varian Associates Inc filed Critical Varian Associates Inc
Application granted granted Critical
Publication of DE68925143D1 publication Critical patent/DE68925143D1/de
Publication of DE68925143T2 publication Critical patent/DE68925143T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3628—Tuning/matching of the transmit/receive coil
    • G01R33/3635—Multi-frequency operation

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Geophysics And Detection Of Objects (AREA)
DE68925143T 1988-04-08 1989-03-17 Schaltungsanordnung mit doppelter Abstimmung für die verteilt lokalisierte Kapazität von Empfangsspulen Expired - Lifetime DE68925143T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/179,014 US4833412A (en) 1988-04-08 1988-04-08 Double tuned circuit for distributed lumped capacitance observe coils

Publications (2)

Publication Number Publication Date
DE68925143D1 true DE68925143D1 (de) 1996-02-01
DE68925143T2 DE68925143T2 (de) 1996-05-15

Family

ID=22654873

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68925143T Expired - Lifetime DE68925143T2 (de) 1988-04-08 1989-03-17 Schaltungsanordnung mit doppelter Abstimmung für die verteilt lokalisierte Kapazität von Empfangsspulen

Country Status (4)

Country Link
US (1) US4833412A (de)
EP (1) EP0336591B1 (de)
JP (1) JP2748016B2 (de)
DE (1) DE68925143T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916418A (en) * 1989-03-31 1990-04-10 Varian Associates, Inc. Double tuned bird cage coil
US5038105A (en) * 1990-02-09 1991-08-06 Spectroscopy Imaging Systems Corporation Series/parallel double-tuned NMR coils
US5036426A (en) * 1990-02-22 1991-07-30 Board Of Regents, The University Of Texas System Method and apparatus for tuning and matching an NMR coil
US5057778A (en) * 1990-03-29 1991-10-15 Spectroscopy Imaging Systems Corporation Double tuned nmr coils
US5166621A (en) * 1990-10-26 1992-11-24 Spectroscopy Imaging Systems Corporation Multi-resonant nmr coils
US5162739A (en) * 1991-04-05 1992-11-10 F. David Doty Balanced multi-tuned high-power broadband coil for nmr
DE69321891T2 (de) * 1992-07-14 1999-08-05 Varian Associates, Inc., Palo Alto, Calif. Abstimmbare Hochfrequenz-Sonde für magnetische Kernresonanz-Spektroskopie-Untersuchungen und Abstimmungsverfahren
US5412322A (en) * 1993-06-24 1995-05-02 Wollin Ventures, Inc. Apparatus and method for spatially ordered phase encoding and for determining complex permittivity in magnetic resonance by using superimposed time-varying electric fields
JP2687883B2 (ja) * 1994-07-06 1997-12-08 日本電気株式会社 リング伝送路におけるプロテクション情報管理システム
US6489768B1 (en) 2000-10-23 2002-12-03 Varian, Inc. Superconductive networks to optimize multiply tuned NMR coils
US7088104B2 (en) * 2001-12-31 2006-08-08 The John Hopkins University MRI tunable antenna and system
DE10361347B4 (de) * 2003-12-16 2012-01-19 Bruker Biospin Gmbh Probenkopf für Kernresonanzmessungen
US6933725B2 (en) * 2004-01-16 2005-08-23 Bruker Biospin Corporation NMR probe circuit for generating close frequency resonances
FR2871892B1 (fr) * 2004-06-18 2006-09-01 Bruker Biospin Sa Sa Circuit d'alimentation d'une bobine et sonde et spectrometre rmn comportant un tel circuit
US7132829B2 (en) * 2005-01-18 2006-11-07 Varian, Inc. NMR RF coils with improved low-frequency efficiency
JP5315556B2 (ja) * 2009-09-08 2013-10-16 株式会社 Ｊｅｏｌ Ｒｅｓｏｎａｎｃｅ Ｎｍｒ検出器
TWI474008B (zh) * 2013-07-15 2015-02-21 Mpi Corp A signal path switching device and a probe card using a signal path switching device
US10241063B2 (en) 2015-04-15 2019-03-26 Jeol Ltd. Magnetic coupling high resolution nuclear magnetic resolution probe and method of use
US10908239B1 (en) 2020-04-14 2021-02-02 Jeol Ltd. Broad band inductive matching of a nuclear magnetic resonance circuit using inductive coupling
US11726152B1 (en) 2022-08-26 2023-08-15 Jeol Ltd. Solid sample magnetic coupling high resolution nuclear magnetic resolution probe and method of use

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446431A (en) * 1981-08-24 1984-05-01 Monsanto Company Double-tuned single coil probe for nuclear magnetic resonance spectrometer
US4641097A (en) * 1984-05-10 1987-02-03 General Electrtic Company Elliptical cross-section slotted-tube radio-frequency resonator for nuclear magnetic resonance imaging
JPS60247146A (ja) * 1984-05-22 1985-12-06 Jeol Ltd 二重共鳴用周波数可変プロ−ブ
US4740751A (en) * 1984-08-16 1988-04-26 Picker International, Inc. Whole body MRI resonator
US4594566A (en) * 1984-08-30 1986-06-10 Advanced Nmr Systems, Inc. High frequency rf coil for NMR device
US4725780A (en) * 1984-10-19 1988-02-16 Mitsubishi Denki Kabushiki Kaisha RF field generator and detector
US4737715A (en) * 1985-02-14 1988-04-12 Jeol Ltd. Coil system for nuclear magnetic resonance spectrometer probe
US4641098A (en) * 1985-03-15 1987-02-03 Doty Scientific, Inc. Parallel single turn saddle resonator for nuclear magnetic resonance signal reception
US4755756A (en) * 1986-02-18 1988-07-05 Mitsubishi Denki Kabushiki Kaisha Radio frequency coil for nuclear magnetic resonance imaging
US4720680A (en) * 1986-02-18 1988-01-19 Mitsubishi Denki Kabushiki Kaisha Adjustable radio frequency coil for nuclear magnetic resonance imaging
IL77937A (en) * 1986-02-20 1989-03-31 Elscint Ltd Hybrid resonator
US4752736A (en) * 1986-07-22 1988-06-21 The Regents Of The University Of California Center fed QD MRI RF coil

Also Published As

Publication number Publication date
US4833412A (en) 1989-05-23
EP0336591A3 (de) 1991-01-02
JP2748016B2 (ja) 1998-05-06
EP0336591A2 (de) 1989-10-11
DE68925143T2 (de) 1996-05-15
EP0336591B1 (de) 1995-12-20
JPH0213871A (ja) 1990-01-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: VARIAN, INC., PALO ALTO, CALIF., US