FR1581890A - - Google Patents

Info

Publication number
FR1581890A
FR1581890A FR1581890DA FR1581890A FR 1581890 A FR1581890 A FR 1581890A FR 1581890D A FR1581890D A FR 1581890DA FR 1581890 A FR1581890 A FR 1581890A
Authority
FR
France
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.)
Expired
Application number
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 filed Critical
Application granted granted Critical
Publication of FR1581890A publication Critical patent/FR1581890A/fr
Expired 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
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • G01B7/107—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring objects while moving
FR1581890D 1967-10-19 1968-09-18 Expired FR1581890A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47668/67A GB1173828A (en) 1967-10-19 1967-10-19 Method of and Device for Measuring the Thickness of Electrically Conductive Sheet Material

Publications (1)

Publication Number Publication Date
FR1581890A true FR1581890A (fr) 1969-09-19

Family

ID=10445849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1581890D Expired FR1581890A (fr) 1967-10-19 1968-09-18

Country Status (4)

Country Link
US (1) US3651398A (fr)
CH (1) CH488994A (fr)
FR (1) FR1581890A (fr)
GB (1) GB1173828A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640155C3 (de) * 1976-09-07 1982-02-11 Electronic Production Aids Co., Ltd., Worcester Park, Surrey Nach dem Wirbelstromprinzip arbeitende Meßvorrichtung zur kontinuierlichen Messung der Dicke eines sich bewegenden, aus Metall bestehenden Meßobjekts.
US4553094A (en) * 1983-06-20 1985-11-12 K. J. Law Engineers, Inc. Method and apparatus for measuring conductivity using eddy currents with temperature compensation feature
US4956606A (en) * 1984-10-17 1990-09-11 Mine Safety Appliances Company Non-contact inductive distance measuring system with temperature compensation
US4797614A (en) * 1984-11-02 1989-01-10 Sierracin Corporation Apparatus and method for measuring conductance including a temperature controlled resonant tank circuit with shielding
FR2589566A1 (fr) * 1985-11-06 1987-05-07 Cegedur Procede de mesure au defile et sans contact de l'epaisseur et de la temperature de feuilles metalliques minces au moyen de courants de foucault
GB8809575D0 (en) * 1988-04-22 1988-05-25 Penny & Giles Potentiometers L Linear displacement transducers
US4893079A (en) * 1988-08-29 1990-01-09 The United States Of America As Represented By The United States Department Of Energy Method and apparatus for correcting eddy current signal voltage for temperature effects
US7563022B2 (en) * 2003-11-28 2009-07-21 Ontario Power Generation Inc. Methods and apparatus for inspecting reactor pressure tubes
AU2006252762B2 (en) * 2005-05-27 2009-10-01 The Cleveland Clinic Foundation Method and apparatus for eddy current compensation in a radio frequency probe
US9057146B2 (en) 2010-08-24 2015-06-16 Varian Semiconductor Equipment Associates, Inc. Eddy current thickness measurement apparatus
CN110277275B (zh) * 2019-07-04 2024-03-29 上海新远仪表厂有限公司 能对多个不同的密度值进行温度补偿的sf6气体密度开关

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020067A (en) * 1931-01-14 1935-11-05 Siemens Ag Device for determining the temperature of electrically conductive bodies
US2057835A (en) * 1933-04-13 1936-10-20 Karajan Wolfgang Device for measuring the thickness of sheet metal and metal foil
GB476613A (en) * 1935-06-28 1937-12-13 Ladislaus Uermenyi Method of and device for measuring the thickness of foils
GB538988A (en) * 1940-02-12 1941-08-25 Laszlo Urmenyi Method of and device for electrically measuring the thickness of foils and sheet metals
BE475852A (fr) * 1945-03-01

Also Published As

Publication number Publication date
GB1173828A (en) 1969-12-10
US3651398A (en) 1972-03-21
CH488994A (de) 1970-04-15

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Legal Events

Date Code Title Description
ST Notification of lapse