FR2243414B1 - - Google Patents
Info
- Publication number
- FR2243414B1 FR2243414B1 FR7342796A FR7342796A FR2243414B1 FR 2243414 B1 FR2243414 B1 FR 2243414B1 FR 7342796 A FR7342796 A FR 7342796A FR 7342796 A FR7342796 A FR 7342796A FR 2243414 B1 FR2243414 B1 FR 2243414B1
- 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
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
- G01B7/105—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 thickness of coating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2345848A DE2345848C3 (de) | 1973-09-12 | 1973-09-12 | Elektromagnetischer Schichtdickenmesser |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2243414A1 FR2243414A1 (fr) | 1975-04-04 |
FR2243414B1 true FR2243414B1 (fr) | 1980-10-03 |
Family
ID=5892278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7342796A Expired FR2243414B1 (fr) | 1973-09-12 | 1973-11-30 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3922599A (fr) |
JP (1) | JPS5057260A (fr) |
DE (1) | DE2345848C3 (fr) |
FR (1) | FR2243414B1 (fr) |
GB (1) | GB1410301A (fr) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU947631A1 (ru) * | 1978-04-04 | 1982-07-30 | Отдел Физики Неразрушающего Контроля Ан Бсср | Толщиномер |
HU184050B (en) * | 1979-11-29 | 1984-06-28 | Gyoergy Balogh | Method for detecting and checking the decreasing of activity and watchfulness level of driver on vehicles on non-limited way having independent source of power as well as safety device for vehicles of non-limited way |
US4567436A (en) * | 1982-01-21 | 1986-01-28 | Linda Koch | Magnetic thickness gauge with adjustable probe |
US4553095A (en) * | 1982-06-10 | 1985-11-12 | Westinghouse Electric Corp. | Eddy current thickness gauge with constant magnetic bias |
JPS5928601A (ja) * | 1982-08-10 | 1984-02-15 | Amada Co Ltd | 磁性体板の検出方法および装置 |
DE3236224C2 (de) * | 1982-09-30 | 1985-03-28 | Werner Turck Gmbh & Co Kg, 5884 Halver | Induktiver Annäherungsschalter |
US4767987A (en) * | 1983-12-12 | 1988-08-30 | Harris Graphics Corporation | Method and apparatus for monitoring film thicknesses by sensing magnetic interaction between members movable to a film thickness distance |
US4661774A (en) * | 1983-12-12 | 1987-04-28 | Harris Graphics Corporation | Method and apparatus for monitoring film thickness between rotatable rolls |
DE3408554C2 (de) * | 1984-03-08 | 1994-02-17 | Helmut Fischer Gmbh & Co | Vorrichtung zum Messen des Eindringverhaltens eines Prüfkörpers in einen zerstörungsfrei zu prüfenden Stoff |
JPS6138503A (ja) * | 1984-07-31 | 1986-02-24 | Ketsuto Kagaku Kenkyusho:Kk | 膜厚計 |
JPS62298701A (ja) * | 1986-06-18 | 1987-12-25 | Ngk Insulators Ltd | 非金属材料成形体の寸法測定法 |
US4804912A (en) * | 1987-05-14 | 1989-02-14 | Kamyr Ab | Apparatus for electromagnetically measuring the distance between two opposing grinding surfaces |
ATE104427T1 (de) * | 1990-02-28 | 1994-04-15 | Schenck Ag Carl | Verfahren und vorrichtung zum abgleich einer wegaufnehmer-messkette nach dem wirbelstrommessverfahren. |
DE4119903C5 (de) * | 1991-06-17 | 2005-06-30 | Immobiliengesellschaft Helmut Fischer Gmbh & Co. Kg | Verfahren und Vorrichtung zur Messung dünner Schichten |
FR2678061A1 (fr) * | 1991-06-25 | 1992-12-24 | Fischer Gmbh Co Inst Elektro | Procede et dispositif pour la mesure de couches minces. |
US5343146A (en) * | 1992-10-05 | 1994-08-30 | De Felsko Corporation | Combination coating thickness gauge using a magnetic flux density sensor and an eddy current search coil |
US5917321A (en) * | 1995-05-19 | 1999-06-29 | International Business Machines Corporation | Process and device for determining the magnetic characteristics of thin magnetic layers |
GB9520515D0 (en) * | 1995-10-05 | 1995-12-13 | Elcometer Instr Ltd | A thickness coating measuring instrument |
FR2743148B1 (fr) * | 1995-12-29 | 1998-02-27 | Framatome Sa | Dispositif et procede de controle de tubes par courants de foucault |
DE19820546C1 (de) * | 1998-05-08 | 1999-11-04 | Bosch Gmbh Robert | Verfahren zur Eliminierung von Meßfehlern bei der Bestimmung einer Dicke einer Schicht aus elektrisch leitendem Material |
KR100381095B1 (ko) * | 1998-10-10 | 2003-07-16 | 주식회사 포스코 | 자기 유도방식에 의한 아연도금량 두께 측정방법 |
GB0016591D0 (en) * | 2000-07-06 | 2000-08-23 | Elcometer Instr Ltd | Dual mode coating thickness measuring instrument |
US6593737B2 (en) * | 2000-08-24 | 2003-07-15 | Shell Oil Company | Method for measuring the wall thickness of an electrically conductive object |
US6975108B2 (en) * | 2003-11-13 | 2005-12-13 | Yuli Bilik | Methods and devices for eddy current PCB inspection |
NL1027373C2 (nl) * | 2004-10-29 | 2006-05-03 | Sonimex B V | Werkwijze en inrichting voor het niet-destructief onderzoeken van een voorwerp. |
US7403001B1 (en) * | 2005-03-29 | 2008-07-22 | Lam Research Corporation | Methods and apparatus for measuring morphology of a conductive film on a substrate |
US9194687B1 (en) * | 2010-02-04 | 2015-11-24 | Textron Innovations Inc. | System and method for measuring non-conductive coating thickness using eddy currents |
US9091664B2 (en) * | 2012-06-07 | 2015-07-28 | Thomas Krause | Pulsed eddy current sensor for precision measurement at-large lift-offs on metallic surfaces |
FR3009076B1 (fr) * | 2013-07-26 | 2017-03-31 | Michelin & Cie | Systeme de mesure de l'epaisseur d'une couche de gomme d'un pneumatique |
CN106940168A (zh) * | 2017-05-08 | 2017-07-11 | 成都锦江电子系统工程有限公司 | 一种电磁波吸收涂层厚度无损测厚仪探头及测厚方法 |
DE102018211029A1 (de) * | 2017-12-20 | 2019-06-27 | Gerd Reime | Verfahren und Sensor zur Erkennung einer Bewegung eines metallischen Gegenstandes mit extrem geringem Stromverbrauch |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2221516A (en) * | 1937-04-01 | 1940-11-12 | Gen Electric | Continuous thickness gauge |
DE1303674C2 (de) * | 1965-07-19 | 1973-04-12 | Nix H | Magnetischer schichtdickenmesser |
GB1097179A (en) * | 1965-07-21 | 1967-12-29 | Teledictor Ltd | Apparatus for measuring the thickness of sheets of ferromagnetic materials |
DE1623263A1 (de) * | 1967-09-06 | 1970-12-23 | Nix Hans | Magnetischer Dickenmesser fuer Teile aus ferromagnetischen Werkstoffen |
DE2063805A1 (de) * | 1970-12-24 | 1972-07-06 | Brockhaus S | Anordnung zur induktiven Messung insbesondere der Dicke oder des Querschnittes von Blechen aus ferromagnetischen Werkstoffen |
DE2107076C3 (de) * | 1971-02-15 | 1975-01-30 | Elektro-Physik Hans Nix & Dr.-Ing. E. Steingroever Kg, 5000 Koeln | Magnetischer Schicht-Dickenmesser |
-
1973
- 1973-09-12 DE DE2345848A patent/DE2345848C3/de not_active Expired
- 1973-10-26 GB GB5001173A patent/GB1410301A/en not_active Expired
- 1973-11-30 FR FR7342796A patent/FR2243414B1/fr not_active Expired
- 1973-12-06 JP JP48137608A patent/JPS5057260A/ja active Pending
-
1974
- 1974-08-28 US US501354A patent/US3922599A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2243414A1 (fr) | 1975-04-04 |
DE2345848A1 (de) | 1975-03-20 |
DE2345848C3 (de) | 1986-06-19 |
US3922599A (en) | 1975-11-25 |
JPS5057260A (fr) | 1975-05-19 |
GB1410301A (en) | 1975-10-15 |
DE2345848B2 (de) | 1980-02-21 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |