JPH0197802A - 対面して相対的に移動する２つの表面の面間距離測定装置 - Google Patents
対面して相対的に移動する２つの表面の面間距離測定装置Info
- Publication number
- JPH0197802A JPH0197802A JP63115046A JP11504688A JPH0197802A JP H0197802 A JPH0197802 A JP H0197802A JP 63115046 A JP63115046 A JP 63115046A JP 11504688 A JP11504688 A JP 11504688A JP H0197802 A JPH0197802 A JP H0197802A
- Authority
- JP
- Japan
- Prior art keywords
- pole
- iron core
- housing
- coil
- distance measuring
- 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
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000004804 winding Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 10
- 230000035699 permeability Effects 0.000 description 6
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 239000003302 ferromagnetic material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US049,549 | 1987-05-14 | ||
| US07/049,549 US4804912A (en) | 1987-05-14 | 1987-05-14 | Apparatus for electromagnetically measuring the distance between two opposing grinding surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0197802A true JPH0197802A (ja) | 1989-04-17 |
Family
ID=21960414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63115046A Pending JPH0197802A (ja) | 1987-05-14 | 1988-05-13 | 対面して相対的に移動する２つの表面の面間距離測定装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4804912A (OSRAM) |
| JP (1) | JPH0197802A (OSRAM) |
| BR (1) | BR8802327A (OSRAM) |
| CA (1) | CA1293297C (OSRAM) |
| FI (1) | FI94464C (OSRAM) |
| NO (1) | NO174024B (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021012030A (ja) * | 2019-07-03 | 2021-02-04 | 株式会社荏原製作所 | 渦電流センサ |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI80146C (fi) * | 1986-10-31 | 1990-04-10 | Yhtyneet Paperitehtaat Oy | Foerfarande och anordning foer maetning av avstaondet mellan malskivorna vid en raffinoer. |
| US5242524A (en) * | 1990-05-16 | 1993-09-07 | International Business Machines Corporation | Device for detecting an end point in polishing operations |
| US5132617A (en) * | 1990-05-16 | 1992-07-21 | International Business Machines Corp. | Method of measuring changes in impedance of a variable impedance load by disposing an impedance connected coil within the air gap of a magnetic core |
| US5036901A (en) * | 1990-06-22 | 1991-08-06 | Armco Inc. | Electronic gap sensor and method |
| US5432444A (en) * | 1990-10-23 | 1995-07-11 | Kaisei Engineer Co., Ltd. | Inspection device having coaxial induction and exciting coils forming a unitary coil unit |
| US5115192A (en) * | 1990-11-06 | 1992-05-19 | Nova Corporation Of Alberta | Magnetic displacement transducer with saturation compensation |
| US6366097B1 (en) * | 2000-04-26 | 2002-04-02 | Verizon Laboratories Inc. | Technique for the measurement of reflection coefficients in stored energy systems |
| SE521893C2 (sv) * | 2001-09-26 | 2003-12-16 | Daprox Ab | Givare för avståndsmätning |
| US7248041B2 (en) * | 2003-07-28 | 2007-07-24 | Cummins, Inc. | Device and method for measuring transient magnetic performance |
| WO2013142832A1 (en) * | 2012-03-22 | 2013-09-26 | Tdk Corporation | Movable coil scanner systems and methods |
| FR3007517B1 (fr) | 2013-06-20 | 2016-08-19 | Michelin & Cie | Systeme de mesure de l'epaisseur d'une couche de gomme d'un pneumatique |
| FR3009076B1 (fr) * | 2013-07-26 | 2017-03-31 | Michelin & Cie | Systeme de mesure de l'epaisseur d'une couche de gomme d'un pneumatique |
| FR3009075B1 (fr) * | 2013-07-26 | 2016-09-09 | Michelin & Cie | Systeme de mesure de l'epaisseur d'une couche de gomme d'un pneumatique |
| WO2016037597A1 (de) * | 2014-09-09 | 2016-03-17 | Balluff Gmbh | Sensorelement eines induktiven näherungs- oder abstandssensor und verfahren zum betreiben des sensorelements |
| US10184846B2 (en) * | 2016-08-31 | 2019-01-22 | General Electric Company | Systems and methods for compensating for air gap sensitivity in torque sensors |
| SE544564C2 (en) * | 2020-08-26 | 2022-07-19 | Daprox Ab | A beating gap sensor device for a refiner apparatus and calibration method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3434670A (en) * | 1966-07-07 | 1969-03-25 | Pulp Paper Res Inst | Apparatus for measuring out of tram and plate separation of disc refiners |
| JPS4813057B1 (OSRAM) * | 1969-08-08 | 1973-04-25 | ||
| JPS50142264A (OSRAM) * | 1974-05-02 | 1975-11-15 | ||
| JPS55164302A (en) * | 1979-06-05 | 1980-12-22 | Sunds Defibrator | Method of and apparatus for measuring space between surfaces facing each other |
| JPS6014162A (ja) * | 1983-06-15 | 1985-01-24 | シ−アイエスイ−・セントロ・インフオ−マチオニ・ストウデイ・エスペリエンツエ・エスピ−エイ | キユリ−温度を超える温度にある金属体の表面および表面下の欠陥を測定するための測定装置 |
| JPS62150622A (ja) * | 1985-12-04 | 1987-07-04 | ポ−テイジ エレクトリツク プロダクツ，インコ−ポレイテイド | 耐漏ケ−シング付きサ−モスタツト装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2531414A (en) * | 1947-06-16 | 1950-11-28 | Lenard R Engvall | Electrical pressure measuring device |
| US3441840A (en) * | 1967-03-31 | 1969-04-29 | Martin Marietta Corp | Electronic thickness meter having direct readout of coating thickness |
| DE2345848C3 (de) * | 1973-09-12 | 1986-06-19 | ELEKTRO-PHYSIK Hans Nix & Dr.-Ing. E. Steingroever GmbH & Co KG, 5000 Köln | Elektromagnetischer Schichtdickenmesser |
| DE3112991C2 (de) * | 1981-04-01 | 1985-12-12 | Hoesch Ag, 4600 Dortmund | Rundschleifmaschine zum kontrollierten Abschleifen von Rissen an Walzen |
| JPS59166801A (ja) * | 1983-03-09 | 1984-09-20 | Nippon Kokan Kk <Nkk> | 渦電流を利用した差動帰還型距離測定装置 |
| US4652820A (en) * | 1983-03-23 | 1987-03-24 | North American Philips Corporation | Combined position sensor and magnetic motor or bearing |
| US4661774A (en) * | 1983-12-12 | 1987-04-28 | Harris Graphics Corporation | Method and apparatus for monitoring film thickness between rotatable rolls |
| EP0164057A3 (de) * | 1984-06-08 | 1988-05-04 | Mecapec S.A. | Verfahren und Vorrichtungen zur Feststellung von Oberflächenfehlern an stabförmigem, ferromagnetischem Gut |
| US4618825A (en) * | 1984-10-11 | 1986-10-21 | Helmut Fischer | Electro-magnetic thickness measuring probe |
-
1987
- 1987-05-14 US US07/049,549 patent/US4804912A/en not_active Expired - Lifetime
-
1988
- 1988-05-05 CA CA000565975A patent/CA1293297C/en not_active Expired - Lifetime
- 1988-05-11 NO NO882062A patent/NO174024B/no unknown
- 1988-05-11 FI FI882206A patent/FI94464C/fi not_active IP Right Cessation
- 1988-05-12 BR BR8802327A patent/BR8802327A/pt not_active IP Right Cessation
- 1988-05-13 JP JP63115046A patent/JPH0197802A/ja active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3434670A (en) * | 1966-07-07 | 1969-03-25 | Pulp Paper Res Inst | Apparatus for measuring out of tram and plate separation of disc refiners |
| JPS4813057B1 (OSRAM) * | 1969-08-08 | 1973-04-25 | ||
| JPS50142264A (OSRAM) * | 1974-05-02 | 1975-11-15 | ||
| JPS55164302A (en) * | 1979-06-05 | 1980-12-22 | Sunds Defibrator | Method of and apparatus for measuring space between surfaces facing each other |
| JPS6014162A (ja) * | 1983-06-15 | 1985-01-24 | シ−アイエスイ−・セントロ・インフオ−マチオニ・ストウデイ・エスペリエンツエ・エスピ−エイ | キユリ−温度を超える温度にある金属体の表面および表面下の欠陥を測定するための測定装置 |
| JPS62150622A (ja) * | 1985-12-04 | 1987-07-04 | ポ−テイジ エレクトリツク プロダクツ，インコ−ポレイテイド | 耐漏ケ−シング付きサ−モスタツト装置 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021012030A (ja) * | 2019-07-03 | 2021-02-04 | 株式会社荏原製作所 | 渦電流センサ |
| US12076834B2 (en) | 2019-07-03 | 2024-09-03 | Ebara Corporation | Eddy current sensor |
| TWI892986B (zh) * | 2019-07-03 | 2025-08-11 | 日商荏原製作所股份有限公司 | 渦電流檢測器及研磨裝置 |
Also Published As
| Publication number | Publication date |
|---|---|
| FI94464B (fi) | 1995-05-31 |
| NO882062L (no) | 1988-11-15 |
| NO174024C (OSRAM) | 1994-03-02 |
| NO174024B (no) | 1993-11-22 |
| BR8802327A (pt) | 1988-12-13 |
| US4804912A (en) | 1989-02-14 |
| FI94464C (fi) | 1995-09-11 |
| FI882206A7 (fi) | 1988-11-15 |
| FI882206A0 (fi) | 1988-05-11 |
| CA1293297C (en) | 1991-12-17 |
| NO882062D0 (no) | 1988-05-11 |
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