JPS55126821A - Electromagnetic flow meter - Google Patents

Electromagnetic flow meter

Info

Publication number
JPS55126821A
JPS55126821A JP3394279A JP3394279A JPS55126821A JP S55126821 A JPS55126821 A JP S55126821A JP 3394279 A JP3394279 A JP 3394279A JP 3394279 A JP3394279 A JP 3394279A JP S55126821 A JPS55126821 A JP S55126821A
Authority
JP
Japan
Prior art keywords
permanent magnets
electromotive force
main
electrodes
opposite polarity
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.)
Granted
Application number
JP3394279A
Other languages
Japanese (ja)
Other versions
JPS597933B2 (en
Inventor
Koji Mizuguchi
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
Nippon Atomic Industry Group Co Ltd
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Nippon Atomic Industry Group Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd, Nippon Atomic Industry Group Co Ltd filed Critical Toshiba Corp
Priority to JP3394279A priority Critical patent/JPS597933B2/en
Publication of JPS55126821A publication Critical patent/JPS55126821A/en
Publication of JPS597933B2 publication Critical patent/JPS597933B2/en
Expired legal-status Critical Current

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  • Measuring Volume Flow (AREA)

Abstract

PURPOSE: To obtain a miniature flow meter of simple constitution which provides accurate measurements of flow rates by compensating the temperature drift of an output voltage, by providing auxiliary permanent magnets of the opposite polarity to main permanent magnets, arranged sandwiching a pipe, at both terminal parts of the main permanent magnets.
CONSTITUTION: Along pipe 1 through which a conductive liquid such as liquid sodium flows, main permanet magnets 2a and 2b are provided so as to measure the flow rate of the conductive liquid by making use of a voltage developed between electrodes 3a and 3b. In this case, auxiliary permanent magnets 6a and 6b, and 7a and 7b of the opposite polarity to the main permanent magnets are closely arranged. Consequently, electromotive force with its level suppressed through the terminal effect of a magnetic field of an eddy current is generated at electrodes 3a and 3b. Although the suppressing power of this electromotive force decreases as a temperature rises, the intensity of the magnetic filed of the permanent magnets also decreases. For the purpose, the increment of the electromotive force through the terminal effect is set equal to the decrement of the electromotive force by the permanent magnets, so that the constant electromotive force can be obtained without reference to variation in temperature.
COPYRIGHT: (C)1980,JPO&Japio
JP3394279A 1979-03-23 1979-03-23 electromagnetic flow meter Expired JPS597933B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3394279A JPS597933B2 (en) 1979-03-23 1979-03-23 electromagnetic flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3394279A JPS597933B2 (en) 1979-03-23 1979-03-23 electromagnetic flow meter

Publications (2)

Publication Number Publication Date
JPS55126821A true JPS55126821A (en) 1980-10-01
JPS597933B2 JPS597933B2 (en) 1984-02-21

Family

ID=12400553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3394279A Expired JPS597933B2 (en) 1979-03-23 1979-03-23 electromagnetic flow meter

Country Status (1)

Country Link
JP (1) JPS597933B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509824A (en) * 2016-01-25 2016-04-20 中国原子能科学研究院 Permanent-magnetic liquid metal flowmeter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509824A (en) * 2016-01-25 2016-04-20 中国原子能科学研究院 Permanent-magnetic liquid metal flowmeter
CN105509824B (en) * 2016-01-25 2018-10-09 中国原子能科学研究院 A kind of magneto flow of liquid metal gauge

Also Published As

Publication number Publication date
JPS597933B2 (en) 1984-02-21

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