JPS5582953A - Fourier transformation nuclear magnetism resonance device - Google Patents
Fourier transformation nuclear magnetism resonance deviceInfo
- 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
Links
Landscapes
- 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
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)
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)
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 |
-
1978
- 1978-12-19 JP JP15885378A patent/JPS5582953A/en active Pending
Patent Citations (1)
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 (3)
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 |
JPH0222708Y2 (en) * | 1983-09-01 | 1990-06-19 |
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