JPS59164041A - Ｎｍｒ装置用受信回路 - Google Patents

Ｎｍｒ装置用受信回路

Info

Publication number
JPS59164041A
JPS59164041A JP58037014A JP3701483A JPS59164041A JP S59164041 A JPS59164041 A JP S59164041A JP 58037014 A JP58037014 A JP 58037014A JP 3701483 A JP3701483 A JP 3701483A JP S59164041 A JPS59164041 A JP S59164041A
Authority
JP
Japan
Prior art keywords
circuit
preamplifier
coil
receiving
output
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.)
Granted
Application number
JP58037014A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0222652B2 (en]
Inventor
健治 藤野
秀人 岩岡
裕之 松浦
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
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 Yokogawa Hokushin Electric Corp filed Critical Yokogawa Hokushin Electric Corp
Priority to JP58037014A priority Critical patent/JPS59164041A/ja
Publication of JPS59164041A publication Critical patent/JPS59164041A/ja
Publication of JPH0222652B2 publication Critical patent/JPH0222652B2/ja
Granted 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
    • G01R33/3621—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
    • G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
    • G01R33/3657—Decoupling of multiple RF coils wherein the multiple RF coils do not have the same function in MR, e.g. decoupling of a transmission coil from a receive coil

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Transceivers (AREA)
  • Circuits Of Receivers In General (AREA)
JP58037014A 1983-03-07 1983-03-07 Ｎｍｒ装置用受信回路 Granted JPS59164041A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58037014A JPS59164041A (ja) 1983-03-07 1983-03-07 Ｎｍｒ装置用受信回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58037014A JPS59164041A (ja) 1983-03-07 1983-03-07 Ｎｍｒ装置用受信回路

Publications (2)

Publication Number Publication Date
JPS59164041A true JPS59164041A (ja) 1984-09-17
JPH0222652B2 JPH0222652B2 (en]) 1990-05-21

Family

ID=12485815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58037014A Granted JPS59164041A (ja) 1983-03-07 1983-03-07 Ｎｍｒ装置用受信回路

Country Status (1)

Country Link
JP (1) JPS59164041A (en])

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02142206A (ja) * 1988-11-24 1990-05-31 Hitachi Ltd Ｎｍｒ装置
WO2005024448A1 (en) * 2003-09-10 2005-03-17 Koninklijke Philips Electronics, N.V. Magnetic resonance imaging receive chain with dynamic gain and wireless receiver coil
JP2011193989A (ja) * 2010-03-18 2011-10-06 Toshiba Corp 磁気共鳴イメージング装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02142206A (ja) * 1988-11-24 1990-05-31 Hitachi Ltd Ｎｍｒ装置
WO2005024448A1 (en) * 2003-09-10 2005-03-17 Koninklijke Philips Electronics, N.V. Magnetic resonance imaging receive chain with dynamic gain and wireless receiver coil
US7323876B2 (en) 2003-09-10 2008-01-29 Koninklijke Philips Electronics N.V. Magnetic resonance imaging receive chain with dynamic gain and wireless receiver coil
JP2011193989A (ja) * 2010-03-18 2011-10-06 Toshiba Corp 磁気共鳴イメージング装置

Also Published As

Publication number Publication date
JPH0222652B2 (en]) 1990-05-21

Similar Documents

Publication Publication Date Title
US2777057A (en) Radiation powered transistor circuits
JP3841826B2 (ja) マイクロパワーｒｆトランスポンダー
JPS5879342A (ja) 無線周波受信機用トランジスタ化増幅兼混合入力段
US4158814A (en) Automatic overload protection system
US4577160A (en) Method of and apparatus for low noise current amplification
US4115741A (en) Fast attack automatic gain control circuit
JPS59164041A (ja) Ｎｍｒ装置用受信回路
US5450038A (en) Intermediate frequency amplifier and a telecommand signal receiver having such an amplifier
US2803758A (en) Transistor amplifier clipping circuit
US2886653A (en) Amplitude modulated oscillator systems
US3244997A (en) Hearing aid automatic gain control system
US2781420A (en) Amplifier
US2923816A (en) Automatic gain control with variable resistance device in antenna circuit
US3443237A (en) Balanced to unbalanced transistor amplifier
US4241453A (en) Citizens band radio receiver with squelch control
JPS59116041A (ja) 核磁気共鳴映像装置用高周波送受信回路
US3441747A (en) Detector for bipolar digital signals
US3133160A (en) Combination bias oscillator, mixer and recording amplifier
US3316489A (en) Reflex amplifier circuit which effectively eliminates audio feedthrough
US2982854A (en) Transistor receiver squelch circuit
US3452288A (en) Dc and high frequency transistor amplifier circuit
EP4387110A1 (en) Electric circuit fragment with transmit/receive switch topology
US3458818A (en) Circuit arrangement for the automatic gain control of an electric signal
US3316418A (en) All passive frequency detection channel
US4314252A (en) Preamplifier for ADF loop antenna