JPS6472044A - Magnetic resonance device and its probe impedance adjusting method - Google Patents

Magnetic resonance device and its probe impedance adjusting method

Info

Publication number
JPS6472044A
JPS6472044A JP62228537A JP22853787A JPS6472044A JP S6472044 A JPS6472044 A JP S6472044A JP 62228537 A JP62228537 A JP 62228537A JP 22853787 A JP22853787 A JP 22853787A JP S6472044 A JPS6472044 A JP S6472044A
Authority
JP
Japan
Prior art keywords
high frequency
impedance matching
probe
variable capacitor
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
JP62228537A
Other languages
Japanese (ja)
Inventor
Kiyoshi Yoda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62228537A priority Critical patent/JPS6472044A/en
Publication of JPS6472044A publication Critical patent/JPS6472044A/en
Pending legal-status Critical Current

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  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

PURPOSE:To automatize the matching adjustment of the probe impedance, and to shorten the time required for the adjustment, by setting the impedance of an impedance matching box, while applying a high frequency signal brought to frequency sweeping from a high frequency oscillator. CONSTITUTION:The probe of a magnetic resonance device is provided with a high frequency coil 21 for generating and receiving a high frequency magnetic field, and an impedance matching box 22. In this state, under the control of a sequence controller 2, first of all, while applying a high frequency signal brought to frequency sweeping from a high frequency oscillator 30, to the impedance matching box 22 containing a variable capacitor for resonance and a variable capacitor for an impedance matching, the capacity of the impedance matching variable capacitor is set so that an output of a reflected wave from the probe becomes below a prescribed value by some frequency. Subsequently, the capacity of the variable capacitor for resonance is set so that the output of the reflected wave from the probe becomes the prescribed value by some resonance frequency.
JP62228537A 1987-09-14 1987-09-14 Magnetic resonance device and its probe impedance adjusting method Pending JPS6472044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62228537A JPS6472044A (en) 1987-09-14 1987-09-14 Magnetic resonance device and its probe impedance adjusting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62228537A JPS6472044A (en) 1987-09-14 1987-09-14 Magnetic resonance device and its probe impedance adjusting method

Publications (1)

Publication Number Publication Date
JPS6472044A true JPS6472044A (en) 1989-03-16

Family

ID=16877951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62228537A Pending JPS6472044A (en) 1987-09-14 1987-09-14 Magnetic resonance device and its probe impedance adjusting method

Country Status (1)

Country Link
JP (1) JPS6472044A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996027803A1 (en) * 1995-03-08 1996-09-12 Quantum Magnetics, Inc. Automatic tuning apparatus and method for substance detection using nuclear quadrupole resonance and nuclear magnetic resonance
JP2002345775A (en) * 2001-05-21 2002-12-03 Ge Medical Systems Global Technology Co Llc Frequency stabilization method of magnetic resonance imaging coil, cooling structure of magnetic resonance imaging coil, and magnetic resonance imaging device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996027803A1 (en) * 1995-03-08 1996-09-12 Quantum Magnetics, Inc. Automatic tuning apparatus and method for substance detection using nuclear quadrupole resonance and nuclear magnetic resonance
US5986455A (en) * 1995-03-08 1999-11-16 Quantum Magnetics Inc. Automatic tuning apparatus and method for substance detection using nuclear quadrupole resonance and nuclear magnetic resonance
JP2002345775A (en) * 2001-05-21 2002-12-03 Ge Medical Systems Global Technology Co Llc Frequency stabilization method of magnetic resonance imaging coil, cooling structure of magnetic resonance imaging coil, and magnetic resonance imaging device

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