JPS55152447A - Fourier transformation type nuclear magnetic resonance device - Google Patents

Fourier transformation type nuclear magnetic resonance device

Info

Publication number
JPS55152447A
JPS55152447A JP6045679A JP6045679A JPS55152447A JP S55152447 A JPS55152447 A JP S55152447A JP 6045679 A JP6045679 A JP 6045679A JP 6045679 A JP6045679 A JP 6045679A JP S55152447 A JPS55152447 A JP S55152447A
Authority
JP
Japan
Prior art keywords
signal
fourier transformation
memory
mixer
magnetic resonance
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
JP6045679A
Other languages
Japanese (ja)
Inventor
Hiroshi Yokogawa
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6045679A priority Critical patent/JPS55152447A/en
Publication of JPS55152447A publication Critical patent/JPS55152447A/en
Pending legal-status Critical Current

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  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

PURPOSE: To efficiently average only sample signals, by storing an atomic nucleus's free damping resonance signal into an analogue memory to perform necessary compensation and thereafter effecting A/D conversion for Fourier transformation.
CONSTITUTION: An atomic nucleus' free damping resonance signal generated by a magnetic resonance device is stored in the analogue memory 13 of an operation processor 8 until a following signal is entered. The stored signal is passed through a mixer 14 and changed into a digital signal by an A/D converter 10. A CPU11 picks out only a solvent signal or the like from the digital signal and applies the picked-out signal to the mixer through a D/A converter 16 and a switch 15. The CPU performs subtraction or the like of a signal from the memory 13 and removes an unnecessary solvent signal or the like to execute compensation. The memory 13 and the mixer 14 are used as signal transmission lines to perform integration or the like of numerous free resonance signals to average them. Only the sample signals are thus efficiently averaged to perform accurate Fourier transformation.
COPYRIGHT: (C)1980,JPO&Japio
JP6045679A 1979-05-18 1979-05-18 Fourier transformation type nuclear magnetic resonance device Pending JPS55152447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6045679A JPS55152447A (en) 1979-05-18 1979-05-18 Fourier transformation type nuclear magnetic resonance device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6045679A JPS55152447A (en) 1979-05-18 1979-05-18 Fourier transformation type nuclear magnetic resonance device

Publications (1)

Publication Number Publication Date
JPS55152447A true JPS55152447A (en) 1980-11-27

Family

ID=13142782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6045679A Pending JPS55152447A (en) 1979-05-18 1979-05-18 Fourier transformation type nuclear magnetic resonance device

Country Status (1)

Country Link
JP (1) JPS55152447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104781A2 (en) * 1982-08-28 1984-04-04 Kabushiki Kaisha Toshiba Reception signal processing apparatus in nuclear magnetic resonance diagnostic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104781A2 (en) * 1982-08-28 1984-04-04 Kabushiki Kaisha Toshiba Reception signal processing apparatus in nuclear magnetic resonance diagnostic apparatus

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