JPS5582953A - Fourier transformation nuclear magnetism resonance device - Google Patents

Fourier transformation nuclear magnetism resonance device

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Publication number
JPS5582953A
JPS5582953A JP15885378A JP15885378A JPS5582953A JP S5582953 A JPS5582953 A JP S5582953A JP 15885378 A JP15885378 A JP 15885378A JP 15885378 A JP15885378 A JP 15885378A JP S5582953 A JPS5582953 A JP S5582953A
Authority
JP
Japan
Prior art keywords
frequency
signals
computer
excitation
width
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.)
Pending
Application number
JP15885378A
Other languages
Japanese (ja)
Inventor
Keiichiro Higuchi
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Priority to JP15885378A priority Critical patent/JPS5582953A/en
Publication of JPS5582953A publication Critical patent/JPS5582953A/en
Pending legal-status Critical Current

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  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

PURPOSE: To decrease high-frequency power for excitation, by making high-frequency for excitation and the frequency of reference signals in a detecting channel differ in response to the width of observation.
CONSTITUTION: When center frequency fo, which must be observed by operator, and the width of observation fw are designated, a computer 7 alternately generates signals appointing the frequency fo and signals assigning frequency [fo-(fw/2)], and transmits the signals to an oscillator 3. The computer 7 further transmits gate signals to gate circuits 2, 5. Excitation pulses (frequency fo) with pulse width T1 are supplied to the NMR probe 1, and reference signals with the frequency [fo-(fw/ 2)] are fed to a phase detector 4 during a period T2. Thus, FID signals, which have frequency components up to the frequency fw from zero, are obtained as the detection output of the phase detector 4, and a resonance spectrum is gained by means of the computer 7 on the basis of the signals.
COPYRIGHT: (C)1980,JPO&Japio
JP15885378A 1978-12-19 1978-12-19 Fourier transformation nuclear magnetism resonance device Pending JPS5582953A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15885378A JPS5582953A (en) 1978-12-19 1978-12-19 Fourier transformation nuclear magnetism resonance device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15885378A JPS5582953A (en) 1978-12-19 1978-12-19 Fourier transformation nuclear magnetism resonance device

Publications (1)

Publication Number Publication Date
JPS5582953A true JPS5582953A (en) 1980-06-23

Family

ID=15680831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15885378A Pending JPS5582953A (en) 1978-12-19 1978-12-19 Fourier transformation nuclear magnetism resonance device

Country Status (1)

Country Link
JP (1) JPS5582953A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190645A (en) * 1983-04-14 1984-10-29 Hitachi Ltd Nuclear magnetic resonance apparatus
JPS6042976U (en) * 1983-09-01 1985-03-26 横河メディカルシステム株式会社 Nuclear magnetic resonance analyzer with audible monitor of FID signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651396A (en) * 1969-09-04 1972-03-21 Bell Telephone Labor Inc Fourier transform nuclear magnetic resonance spectroscopy

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651396A (en) * 1969-09-04 1972-03-21 Bell Telephone Labor Inc Fourier transform nuclear magnetic resonance spectroscopy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190645A (en) * 1983-04-14 1984-10-29 Hitachi Ltd Nuclear magnetic resonance apparatus
JPS6042976U (en) * 1983-09-01 1985-03-26 横河メディカルシステム株式会社 Nuclear magnetic resonance analyzer with audible monitor of FID signal

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