JPS57191523A - Temperature detector - Google Patents

Temperature detector

Info

Publication number
JPS57191523A
JPS57191523A JP7578181A JP7578181A JPS57191523A JP S57191523 A JPS57191523 A JP S57191523A JP 7578181 A JP7578181 A JP 7578181A JP 7578181 A JP7578181 A JP 7578181A JP S57191523 A JPS57191523 A JP S57191523A
Authority
JP
Japan
Prior art keywords
inductance
magnetic materials
coils
variation
pieces
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
JP7578181A
Other languages
Japanese (ja)
Inventor
Koji Wakahara
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
Tokyo Shibaura Electric 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 filed Critical Toshiba Corp
Priority to JP7578181A priority Critical patent/JPS57191523A/en
Publication of JPS57191523A publication Critical patent/JPS57191523A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/36—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils
    • G01K7/38—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils the variations of temperature influencing the magnetic permeability

Abstract

PURPOSE:To perform temperature measurement at two points by forming a ring of magnetic materials differing in Curie temperature, providing those magnetic materials with coils in such a way that pieces of magnetic flux calcel each other, and performing temperature detection on the basis of variations in inductance of those coils. CONSTITUTION:Both ends of magnetic materials 1 and 2 differing in Curie temperature are brought into contact to form a ring 3, and the magnetic materials 1 and 2 are provided with coils 4 and 5 having the same number of turns in series in such a way that their pieces of magnetic flux cancel each other. Then, variation in inductance between terminals (a) and (b) is measured by an alarm device 6 with an inductance measure. This inductance variation occurs at two different temperatures, so temperature detection is performed at two points on the basis of the inductance variation.
JP7578181A 1981-05-21 1981-05-21 Temperature detector Pending JPS57191523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7578181A JPS57191523A (en) 1981-05-21 1981-05-21 Temperature detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7578181A JPS57191523A (en) 1981-05-21 1981-05-21 Temperature detector

Publications (1)

Publication Number Publication Date
JPS57191523A true JPS57191523A (en) 1982-11-25

Family

ID=13586095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7578181A Pending JPS57191523A (en) 1981-05-21 1981-05-21 Temperature detector

Country Status (1)

Country Link
JP (1) JPS57191523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107003187A (en) * 2014-12-02 2017-08-01 3M创新有限公司 The temperature sensing based on magnetic for transmission line of electricity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107003187A (en) * 2014-12-02 2017-08-01 3M创新有限公司 The temperature sensing based on magnetic for transmission line of electricity
CN107003187B (en) * 2014-12-02 2019-09-10 3M创新有限公司 For transmission line of electricity based on magnetic temperature sensing

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