GB2174813B - Waveform generator for nuclear magnetic resonance apparatus - Google Patents

Waveform generator for nuclear magnetic resonance apparatus

Info

Publication number
GB2174813B
GB2174813B GB8610484A GB8610484A GB2174813B GB 2174813 B GB2174813 B GB 2174813B GB 8610484 A GB8610484 A GB 8610484A GB 8610484 A GB8610484 A GB 8610484A GB 2174813 B GB2174813 B GB 2174813B
Authority
GB
United Kingdom
Prior art keywords
magnetic resonance
nuclear magnetic
waveform generator
resonance apparatus
waveform
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
Application number
GB8610484A
Other versions
GB2174813A (en
GB8610484D0 (en
Inventor
Reginald Alfred Willard
William Spencer Percival
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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
Priority claimed from GB858511354A external-priority patent/GB8511354D0/en
Priority claimed from GB858511382A external-priority patent/GB8511382D0/en
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB8610484A priority Critical patent/GB2174813B/en
Publication of GB8610484D0 publication Critical patent/GB8610484D0/en
Publication of GB2174813A publication Critical patent/GB2174813A/en
Application granted granted Critical
Publication of GB2174813B publication Critical patent/GB2174813B/en
Expired 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
    • G01R33/3614—RF power amplifiers
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/14—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electron or nuclear magnetic resonance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB8610484A 1985-05-03 1986-04-29 Waveform generator for nuclear magnetic resonance apparatus Expired GB2174813B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8610484A GB2174813B (en) 1985-05-03 1986-04-29 Waveform generator for nuclear magnetic resonance apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB858511354A GB8511354D0 (en) 1985-05-03 1985-05-03 Resonant circuit with switched attenuator
GB858511382A GB8511382D0 (en) 1985-05-03 1985-05-03 Waveform generator
GB8610484A GB2174813B (en) 1985-05-03 1986-04-29 Waveform generator for nuclear magnetic resonance apparatus

Publications (3)

Publication Number Publication Date
GB8610484D0 GB8610484D0 (en) 1986-06-04
GB2174813A GB2174813A (en) 1986-11-12
GB2174813B true GB2174813B (en) 1989-04-26

Family

ID=27262672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8610484A Expired GB2174813B (en) 1985-05-03 1986-04-29 Waveform generator for nuclear magnetic resonance apparatus

Country Status (1)

Country Link
GB (1) GB2174813B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3614154A1 (en) * 1985-05-03 1986-11-06 British Technology Group Ltd., London NMR DEVICE WITH A SWITCHABLE ATTENUATOR
FR2735865B1 (en) * 1995-06-26 1997-08-22 Centre Nat Rech Scient QUANTITATIVE ANALYSIS DEVICE BY NUCLEAR MAGNETIC RESONANCE
CN100365425C (en) * 2005-04-30 2008-01-30 华东师范大学 Positive-negative phase combined pulse with selective excitation and its implementing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768003A (en) * 1971-09-27 1973-10-23 Varian Associates Pulsed resonance spectrometer system employing improved radio frequency pulse turn-off method and apparatus
GB1557450A (en) * 1976-06-21 1979-12-12 Varian Associates Pulsed rf exited spectrometer having pulse width control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768003A (en) * 1971-09-27 1973-10-23 Varian Associates Pulsed resonance spectrometer system employing improved radio frequency pulse turn-off method and apparatus
GB1557450A (en) * 1976-06-21 1979-12-12 Varian Associates Pulsed rf exited spectrometer having pulse width control

Also Published As

Publication number Publication date
GB2174813A (en) 1986-11-12
GB8610484D0 (en) 1986-06-04

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950429