JPS57192805A - Differential feedback type eddy current distance meter - Google Patents

Differential feedback type eddy current distance meter

Info

Publication number
JPS57192805A
JPS57192805A JP7793681A JP7793681A JPS57192805A JP S57192805 A JPS57192805 A JP S57192805A JP 7793681 A JP7793681 A JP 7793681A JP 7793681 A JP7793681 A JP 7793681A JP S57192805 A JPS57192805 A JP S57192805A
Authority
JP
Japan
Prior art keywords
coils
eddy current
distance meter
current distance
feedback type
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
JP7793681A
Other languages
English (en)
Other versions
JPS6230562B2 (ja
Inventor
Kazuo Sano
Seigo Ando
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP7793681A priority Critical patent/JPS57192805A/ja
Publication of JPS57192805A publication Critical patent/JPS57192805A/ja
Publication of JPS6230562B2 publication Critical patent/JPS6230562B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
JP7793681A 1981-05-25 1981-05-25 Differential feedback type eddy current distance meter Granted JPS57192805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7793681A JPS57192805A (en) 1981-05-25 1981-05-25 Differential feedback type eddy current distance meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7793681A JPS57192805A (en) 1981-05-25 1981-05-25 Differential feedback type eddy current distance meter

Publications (2)

Publication Number Publication Date
JPS57192805A true JPS57192805A (en) 1982-11-27
JPS6230562B2 JPS6230562B2 (ja) 1987-07-03

Family

ID=13647958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7793681A Granted JPS57192805A (en) 1981-05-25 1981-05-25 Differential feedback type eddy current distance meter

Country Status (1)

Country Link
JP (1) JPS57192805A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408318A1 (de) 1983-03-09 1984-09-20 Nippon Kokan K.K., Tokio/Tokyo Verfahren und vorrichtung zur kontinuierlichen abstandsmessung mittels wirbelstroms
FR2551864A1 (fr) * 1983-09-09 1985-03-15 Nippon Kokan Kk Appareil de mesure du niveau du metal fondu dans le moule d'une machine de coulee en continu
JPS6093316A (ja) * 1983-10-27 1985-05-25 Nippon Kokan Kk <Nkk> 渦流式湯面レベル測定法
JPS6114501A (ja) * 1984-06-30 1986-01-22 Nippon Kokan Kk <Nkk> 渦流式距離計
US4786074A (en) * 1986-02-17 1988-11-22 Toyota Jidosha Kabushiki Kaisha Rear suspension of automobile

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408318A1 (de) 1983-03-09 1984-09-20 Nippon Kokan K.K., Tokio/Tokyo Verfahren und vorrichtung zur kontinuierlichen abstandsmessung mittels wirbelstroms
FR2548776A1 (fr) * 1983-03-09 1985-01-11 Nippon Kokan Kk Procede et appareil de mesure continue de distance utilisant des courants de foucault
US4567435A (en) * 1983-03-09 1986-01-28 Nippon Kokan Kabushiki Kaisha Method and apparatus for continuously measuring distance utilizing eddy current and having temperature difference influence elimination
FR2551864A1 (fr) * 1983-09-09 1985-03-15 Nippon Kokan Kk Appareil de mesure du niveau du metal fondu dans le moule d'une machine de coulee en continu
US4647854A (en) * 1983-09-09 1987-03-03 Nippon Kokan Kabushiki Kaisha Apparatus for measuring the level of the molten metal in the mold of a continuous casting machine
JPS6093316A (ja) * 1983-10-27 1985-05-25 Nippon Kokan Kk <Nkk> 渦流式湯面レベル測定法
JPH0242416B2 (ja) * 1983-10-27 1990-09-21
JPS6114501A (ja) * 1984-06-30 1986-01-22 Nippon Kokan Kk <Nkk> 渦流式距離計
US4716366A (en) * 1984-06-30 1987-12-29 Nippon Kokan K.K. Eddy current distance signal apparatus with temperature change compensation means
US4786074A (en) * 1986-02-17 1988-11-22 Toyota Jidosha Kabushiki Kaisha Rear suspension of automobile

Also Published As

Publication number Publication date
JPS6230562B2 (ja) 1987-07-03

Similar Documents

Publication Publication Date Title
US4430615A (en) Reflection type probes for eddy current testing instruments
GB1533812A (en) Temperature measuring apparatus
GB1198288A (en) Improvements in or relating to Eddy Current Crack Detector System
CN210720553U (zh) 一种带温度补偿的tmr电流传感器
NO870257D0 (no) Fremgangsmaate og apparat for avstandsmaaling.
GB1161143A (en) Single Axis Accelerometer.
GB1497231A (en) Pressure sensor utilizing a ferromagnetic fluid
US2861242A (en) Magnetometer
JPS57192805A (en) Differential feedback type eddy current distance meter
JPS5775318A (en) Measuring device for traveling locus shift of selftraveling car
JPS6023738Y2 (ja) 磁界検出器
SU593131A1 (ru) Магнитоиндукционный датчик
SU130191A1 (ru) Электромагнитный прибор дл контрол толщины металлических изделий
JPS57192872A (en) Eddy current type flow velocity meter
JPH08211085A (ja) 流速測定装置
SU938124A1 (ru) Электромагнитное устройство дл контрол внутреннего диаметра ферромагнитных труб
SU126299A1 (ru) Способ определени пористости немагнитных металлических покрытий на издели х из магнитных материалов
SU145383A1 (ru) Индукционный прибор дл контрол структуры металлов
SU546024A1 (ru) Устройство дл измерени тока электронного пучка
SU748234A1 (ru) Измеритель геометрических параметров неферромагнитных изделий
SU605086A1 (ru) Накладной вихретоковый датчик
SU127066A1 (ru) Способ контрол макроструктуры литой немагнитной аустенитной стали
SU127304A1 (ru) Устройство дл измерени размеров сечений прокатываемого металла
JPS6439571A (en) Method and device for measuring magnetic permeability
JPS55144557A (en) Surface potentiometer