IL95182A - Radio frequency receiver for an nmr instrument - Google Patents

Radio frequency receiver for an nmr instrument

Info

Publication number
IL95182A
IL95182A IL95182A IL9518290A IL95182A IL 95182 A IL95182 A IL 95182A IL 95182 A IL95182 A IL 95182A IL 9518290 A IL9518290 A IL 9518290A IL 95182 A IL95182 A IL 95182A
Authority
IL
Israel
Prior art keywords
radio frequency
frequency receiver
nmr instrument
nmr
instrument
Prior art date
Application number
IL95182A
Other languages
English (en)
Other versions
IL95182A0 (en
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IL95182A0 publication Critical patent/IL95182A0/xx
Publication of IL95182A publication Critical patent/IL95182A/xx

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
    • G01R33/3678—Electrical details, e.g. matching or coupling of the coil to the receiver involving quadrature drive or detection, e.g. a circularly polarized RF magnetic field
    • 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
    • G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
    • 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
    • G01R33/3607—RF waveform generators, e.g. frequency generators, amplitude-, frequency- or phase modulators or shifters, pulse programmers, digital to analog converters for the RF signal, means for filtering or attenuating of the RF signal
IL95182A 1989-08-04 1990-07-25 Radio frequency receiver for an nmr instrument IL95182A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/389,456 US4992736A (en) 1989-08-04 1989-08-04 Radio frequency receiver for a NMR instrument

Publications (2)

Publication Number Publication Date
IL95182A0 IL95182A0 (en) 1991-06-10
IL95182A true IL95182A (en) 1993-02-21

Family

ID=23538342

Family Applications (1)

Application Number Title Priority Date Filing Date
IL95182A IL95182A (en) 1989-08-04 1990-07-25 Radio frequency receiver for an nmr instrument

Country Status (7)

Country Link
US (1) US4992736A (fr)
EP (1) EP0411840B1 (fr)
JP (1) JPH03118046A (fr)
CA (1) CA2010677A1 (fr)
DE (1) DE69022797T2 (fr)
FI (1) FI903862A0 (fr)
IL (1) IL95182A (fr)

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JP3739574B2 (ja) * 1998-09-17 2006-01-25 株式会社日立メディコ 核磁気共鳴診断装置
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US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
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US6310477B1 (en) 1999-05-10 2001-10-30 General Electric Company MR imaging of lesions and detection of malignant tumors
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US6310479B1 (en) 1999-08-20 2001-10-30 General Electric Company Magnetic resonance projection imaging of dynamic subjects
US6242915B1 (en) * 1999-08-27 2001-06-05 General Electric Company Field-frequency lock system for magnetic resonance system
US6490472B1 (en) 1999-09-03 2002-12-03 The Mcw Research Foundation, Inc. MRI system and method for producing an index indicative of alzheimer's disease
US6252405B1 (en) 1999-11-15 2001-06-26 General Electric Company Temperature compensated NMR magnet and method of operation therefor
DE60005291T2 (de) * 2000-01-24 2004-07-15 Sony International (Europe) Gmbh Struktur und Methode zur Demodulation
US6647134B1 (en) * 2000-03-30 2003-11-11 Mayo Foundation For Medical Education And Research Autocorrection of MR projection images
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EP2225579A1 (fr) 2007-11-27 2010-09-08 Arjae Spectral Enterprises, Inc. Réduction du bruit au moyen d'un parallélisme spectral
JP5530095B2 (ja) * 2008-12-10 2014-06-25 株式会社日立製作所 ディジタル処理装置、信号解析システムおよび信号解析方法
DE102009052197B4 (de) * 2009-11-06 2013-06-13 Siemens Aktiengesellschaft MR-Signal-Übertragung in einer Lokalspulenanordnung
US8324897B2 (en) * 2009-11-11 2012-12-04 Agilent Technologies, Inc. Digital NMR signal processing systems and methods
EP2839305A1 (fr) * 2012-04-16 2015-02-25 The Medical College of Wisconsin Système et procédé pour une commande de phase radiofréquence directe dans une imagerie à résonance magnétique
DE102018212087B3 (de) * 2018-07-19 2020-01-23 Siemens Healthcare Gmbh Empfangsvorrichtung für Signale mit Frequenzmultiplex
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Also Published As

Publication number Publication date
EP0411840A2 (fr) 1991-02-06
FI903862A0 (fi) 1990-08-03
CA2010677A1 (fr) 1991-02-04
DE69022797T2 (de) 1996-05-30
US4992736A (en) 1991-02-12
EP0411840A3 (en) 1991-07-03
DE69022797D1 (de) 1995-11-09
IL95182A0 (en) 1991-06-10
EP0411840B1 (fr) 1995-10-04
JPH0440015B2 (fr) 1992-07-01
JPH03118046A (ja) 1991-05-20

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Legal Events

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MM9K Patent not in force due to non-payment of renewal fees