JPS6484067A - Magnetic resonance imaging device - Google Patents

Magnetic resonance imaging device

Info

Publication number
JPS6484067A
JPS6484067A JP62238826A JP23882687A JPS6484067A JP S6484067 A JPS6484067 A JP S6484067A JP 62238826 A JP62238826 A JP 62238826A JP 23882687 A JP23882687 A JP 23882687A JP S6484067 A JPS6484067 A JP S6484067A
Authority
JP
Japan
Prior art keywords
primary
refrigerant
drive
response
heat exchange
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
JP62238826A
Other languages
Japanese (ja)
Inventor
Koji Kitamura
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62238826A priority Critical patent/JPS6484067A/en
Publication of JPS6484067A publication Critical patent/JPS6484067A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

PURPOSE: To remarkably improve flow rate control characteristics of a primary side refrigerant by controlling to drive a flow regulating valve according to a drive pulse generated based on a synchronizing pulse set in response to heat exchange characteristics between primary and secondary refrigerants in a heat exchanger. CONSTITUTION: A heat exchange unit 10 of a magnetic resonance imaging apparatus has a heat exchanger 3 for heat exchanging a secondary side refrigerant with a primary side refrigerant supplied from a chilling unit 1 via a pump 6. A controller 13 for controlling a three-way valve 11 for regulating a flow of the primary refrigerant from the unit 1 to the exchanger 3 generates a drive pulse for regulating to drive the valve 11 in response to a detected temperature state of the sensor 12 for detecting a temperature of the secondary refrigerant by using a synchronizing pulse set in response to heat exchange characteristics between the primary and secondary refrigerants. Thus, a flow rate of the primary refrigerant can be switched to a plurality of stages.
JP62238826A 1987-09-25 1987-09-25 Magnetic resonance imaging device Pending JPS6484067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62238826A JPS6484067A (en) 1987-09-25 1987-09-25 Magnetic resonance imaging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62238826A JPS6484067A (en) 1987-09-25 1987-09-25 Magnetic resonance imaging device

Publications (1)

Publication Number Publication Date
JPS6484067A true JPS6484067A (en) 1989-03-29

Family

ID=17035844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62238826A Pending JPS6484067A (en) 1987-09-25 1987-09-25 Magnetic resonance imaging device

Country Status (1)

Country Link
JP (1) JPS6484067A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049563A (en) * 1990-04-26 1992-01-14 Koufu Nippon Denki Kk Cooling device
JP2007007393A (en) * 2005-06-27 2007-01-18 General Electric Co <Ge> Apparatus and method for controlling cryocooler by adjusting cooler gas flow oscillating frequency
CN105020962A (en) * 2015-07-24 2015-11-04 比赫电气（太仓）有限公司 Medical nuclear magnetic resonance water chilling unit and working method thereof
JP2021058632A (en) * 2016-06-28 2021-04-15 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Magnetic resonance imaging with improved thermal performance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049563A (en) * 1990-04-26 1992-01-14 Koufu Nippon Denki Kk Cooling device
JP2007007393A (en) * 2005-06-27 2007-01-18 General Electric Co <Ge> Apparatus and method for controlling cryocooler by adjusting cooler gas flow oscillating frequency
CN105020962A (en) * 2015-07-24 2015-11-04 比赫电气（太仓）有限公司 Medical nuclear magnetic resonance water chilling unit and working method thereof
JP2021058632A (en) * 2016-06-28 2021-04-15 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Magnetic resonance imaging with improved thermal performance

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