[go: up one dir, main page]

FI832499A0 - Rf-spolarrangemang vid nmr-undersoekningsapparatur - Google Patents

Rf-spolarrangemang vid nmr-undersoekningsapparatur

Info

Publication number
FI832499A0
FI832499A0 FI832499A FI832499A FI832499A0 FI 832499 A0 FI832499 A0 FI 832499A0 FI 832499 A FI832499 A FI 832499A FI 832499 A FI832499 A FI 832499A FI 832499 A0 FI832499 A0 FI 832499A0
Authority
FI
Finland
Prior art keywords
undersoekningsapparatur
spolarrangemang
vid
nmr
vid nmr
Prior art date
Application number
FI832499A
Other languages
English (en)
Other versions
FI80346C (fi
FI832499L (fi
FI80346B (fi
Inventor
Matti Savelainen
Original Assignee
Instrumentarium Oy
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 Instrumentarium Oy filed Critical Instrumentarium Oy
Priority to FI832499A priority Critical patent/FI80346C/fi
Publication of FI832499A0 publication Critical patent/FI832499A0/fi
Priority to US06/628,478 priority patent/US4712068A/en
Publication of FI832499L publication Critical patent/FI832499L/fi
Application granted granted Critical
Publication of FI80346B publication Critical patent/FI80346B/fi
Publication of FI80346C publication Critical patent/FI80346C/fi

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
    • 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
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
    • 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
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
    • G01R33/34076—Birdcage coils

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
FI832499A 1983-07-07 1983-07-07 Rf-spolarrangemang vid nmr-undersoekningsapparatur. FI80346C (fi)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI832499A FI80346C (fi) 1983-07-07 1983-07-07 Rf-spolarrangemang vid nmr-undersoekningsapparatur.
US06/628,478 US4712068A (en) 1983-07-07 1984-07-06 RF coil arrangement for NMR examination apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI832499A FI80346C (fi) 1983-07-07 1983-07-07 Rf-spolarrangemang vid nmr-undersoekningsapparatur.
FI832499 1983-07-07

Publications (4)

Publication Number Publication Date
FI832499A0 true FI832499A0 (fi) 1983-07-07
FI832499L FI832499L (fi) 1985-01-08
FI80346B FI80346B (fi) 1990-01-31
FI80346C FI80346C (fi) 1990-05-10

Family

ID=8517483

Family Applications (1)

Application Number Title Priority Date Filing Date
FI832499A FI80346C (fi) 1983-07-07 1983-07-07 Rf-spolarrangemang vid nmr-undersoekningsapparatur.

Country Status (2)

Country Link
US (1) US4712068A (fi)
FI (1) FI80346C (fi)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8814187D0 (en) * 1988-06-15 1988-07-20 Mansfield P Improvements in/relating to surface electrical coil structures
FI80795C (fi) * 1988-07-01 1990-07-10 Instrumentarium Oy Foerfarande och anordning foer undersoekning av aemnens egenskaper.
US5483163A (en) * 1993-08-12 1996-01-09 The United States Of America As Represented By The Department Of Health And Human Services MRI coil using inductively coupled individually tuned elements arranged as free-pivoting components
US7091721B2 (en) * 2001-04-18 2006-08-15 IGC—Medical Advances, Inc. Phased array local coil for MRI imaging having non-overlapping regions of sensitivity
US6850065B1 (en) * 2001-07-27 2005-02-01 General Electric Company MRI coil system for breast imaging
US6781501B2 (en) * 2001-11-15 2004-08-24 Baker Hughes Incorporated Low external field inductor
US6812701B2 (en) * 2002-11-22 2004-11-02 Igc - Medical Advances, Inc. Phased array magnetic resonance imaging coil with improved spin localization
US20080039714A1 (en) * 2006-08-08 2008-02-14 Intermagnetics General Corporation Magnetic resonance imaging system, a gradient coil, and a method of using the system
US7619416B2 (en) * 2008-04-17 2009-11-17 Universität Zürich Prorektorat Forschung Eidgenössische Technische Hochschule Coil assembly and multiple coil arrangement for magnetic resonance imaging
CN105658139B (zh) * 2013-10-21 2019-06-04 皇家飞利浦有限公司 用于磁共振成像的安全监测
KR102324731B1 (ko) * 2014-09-19 2021-11-10 삼성전자주식회사 자기 공명 영상 장치용 수신 코일
KR20180018542A (ko) * 2015-05-12 2018-02-21 하이퍼파인 리서치, 인크. 고주파 코일 방법 및 장치
US10969446B2 (en) 2018-05-21 2021-04-06 Hyperfine Research, Inc. Radio-frequency coil signal chain for a low-field MRI system
DE102022206766B3 (de) 2022-07-01 2023-11-30 Bruker Switzerland Ag NMR-Probenkopf mit einer Sende-Empfangsspule umfassend einen Hinwicklungsabschnitt und einen Rückwicklungsabschnitt

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1999258A (en) * 1933-07-27 1935-04-30 Rca Corp Directional aerial
US2267613A (en) * 1938-09-08 1941-12-23 Rca Corp Broadcast antenna
US2306693A (en) * 1938-10-04 1942-12-29 Gaspar Rubli Medical short-wave measuring apparatus
BE499425A (fi) * 1949-11-19
HU166127B (fi) * 1973-01-29 1975-01-28
EP0047065B1 (en) * 1980-08-29 1986-10-01 Technicare Corporation Distributed phase rf coil
US4439733A (en) * 1980-08-29 1984-03-27 Technicare Corporation Distributed phase RF coil
US4398149A (en) * 1981-02-02 1983-08-09 Varian Associates, Inc. NMR Probe coil system
DE3133432A1 (de) * 1981-08-24 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Hochfrequenzfeld-einrichtung in einer kernspinresonanz-apparatur
WO1984000214A1 (en) * 1982-06-28 1984-01-19 Oxford Res Syst Radiofrequency transducer and method of using same
JPS5913411A (ja) * 1982-07-14 1984-01-24 Elmec Corp 遅延線
US4542343A (en) * 1983-06-17 1985-09-17 Chevron Research Company Computer-controlled, portable pulsed NMR instrument and method of use wherein depolarization is ultrashortened using pseudo randomly spaced and oriented RF depolarization pulses

Also Published As

Publication number Publication date
FI80346C (fi) 1990-05-10
US4712068A (en) 1987-12-08
FI832499L (fi) 1985-01-08
FI80346B (fi) 1990-01-31

Similar Documents

Publication Publication Date Title
FI831161A0 (fi) Foerfarande foer eliminering av maetningsfel vid fotometeranalys
FI832499A0 (fi) Rf-spolarrangemang vid nmr-undersoekningsapparatur
FI821186L (fi) Sugskaop vid en flaekt
FI840314A0 (fi) Anordning vid vaermedyna
FI834885A0 (fi) Foerfarande foer oekande av frampartiets skikttjocklek vid kontinuerliga tandbilder erhaollna genomroterande panoramaradiografi
FI824534A0 (fi) Anordning vid en absorptionskylapparat
FI831816A0 (fi) Spolarrangemang vid nmr-forskningsapparatur
FI833966A0 (fi) Ljuskopiator foer anvaendning vid vaetskescintillationsraekning
FI840520A0 (fi) Foerfarande vid torvbrytning
FI830928A0 (fi) Anordning vid oeverfoering av givarinformation
FI822958L (fi) Anordning vid luftkuddefarkoster
FI830073A0 (fi) Arrangemang vid laongnyppress
FI833506A0 (fi) Stoedarrangemang vid en panoramaroentgenavbildningsanordning
FI834378A0 (fi) Laosningssystem vid parkeringsstaell
FI840192A0 (fi) Anordning vid en lunningsbanke
FI833377A0 (fi) Anordning vid en vaermeisolerad behaollare foer en foerbraenningsmotors kylvatten
FI832397A0 (fi) Smoerjsystem vid rotfruktsskoerdemaskin
FI834078A0 (fi) Anordning vid skrapmaskiner foer skinn
FI830064A0 (fi) Roersystem vid pumpstation
FI834265A0 (fi) Foerfarande vid sorteringsanlaeggning foer traevirke
FI834467A0 (fi) Anordning vid vindkraftsdrivet ventilationsroer
FI832506A0 (fi) Regleringsfoerfarande vid en spannmaolstork
FI840414A0 (fi) Anordning vid lastbankar
FI832341A0 (fi) Borstelement vid rensnings- och baergningsanordning foer rotfrukter
FI830527A0 (fi) Skaerverktyg vid en skottroejningsanordning

Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: INSTRUMENTARIUM OY