JP6159325B2 - レオメータ内の測定間隙の保持 - Google Patents
レオメータ内の測定間隙の保持 Download PDFInfo
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- JP6159325B2 JP6159325B2 JP2014525073A JP2014525073A JP6159325B2 JP 6159325 B2 JP6159325 B2 JP 6159325B2 JP 2014525073 A JP2014525073 A JP 2014525073A JP 2014525073 A JP2014525073 A JP 2014525073A JP 6159325 B2 JP6159325 B2 JP 6159325B2
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- drive shaft
- rheometer
- coil
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- measurement
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- 238000005259 measurement Methods 0.000 title claims description 62
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
- G01N11/142—Sample held between two members substantially perpendicular to axis of rotation, e.g. parallel plate viscometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
- G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/0006—Calibrating, controlling or cleaning viscometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/0006—Calibrating, controlling or cleaning viscometers
- G01N2011/0013—Temperature compensation
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
Claims (8)
- 駆動軸と、
駆動軸を回転させるためのドラッグカップモータと、
フレームによって支持される第1の測定対象物と、
駆動軸によって支持される第2の測定対象物と、
線形位置センサであって、
駆動軸に実装されたターゲットと、
ターゲットを中心に円周方向に配置され、軸方向に間隔を空けて互いから離れている1対のコイルとを備え、コイルに対するターゲットの変位から生じるコイルのインピーダンスの変化に基づいて駆動軸の熱膨張を測定するように構成されている、線形位置センサと、
コイルと連絡しており、コイルに対するターゲットの変位から生じるコイルのインピーダンスの変化に基づいて測定対象物のうちの1つの他方に対する位置を調整し、これによってそれらの間に実質的に一定の測定間隙を保持するように構成されている、処理電子回路および制御電子回路と
を含むレオメータ。 - コイルが、第1の測定対象物に対して動くように実装されている、請求項1に記載のレオメータ。
- コイルがドラッグカップモータに実装されている、請求項1に記載のレオメータ。
- ドラッグカップモータ、駆動軸、および線形位置センサを備えるレオメータヘッドアセンブリを備え、
レオメータヘッドアセンブリは、フレームに対して動くように実装されており、
処理電子回路および制御電子回路は、駆動軸の熱膨張に対応する、コイルに対するターゲットの変位から生じるコイルのインピーダンスの変化に基づいて、フレームに対するレオメータヘッドアセンブリの位置を調整し、これによって第1および第2の測定対象物の間に実質的に一定の測定間隙を保持するように構成されている、請求項1に記載のレオメータ。 - コイルのインピーダンスが、ターゲットが1対のコイルの間で軸方向の中心にあるときに平衡する、請求項1に記載のレオメータ。
- ターゲットが金属ターゲットである、請求項1に記載のレオメータ。
- ターゲットがアルミニウムで形成されている、請求項1に記載のレオメータ。
- レオメータ内の測定間隙を保持する方法であって、
駆動軸を中心に円周方向に配置され、軸方向に間隔を空けて互いから離れている1対のコイルに高周波信号を供給して、これによって、駆動軸に実装され、コイルの間に配置されたターゲット内に渦電流を発生させるステップと、
コイルのインピーダンスを測定して、これによって、駆動軸の熱膨張に対応する、コイルに対するターゲットの変位を検出するステップと、
フレームによって支持される第1の測定対象物に対する、駆動軸によって支持される第2の測定対象物の位置を自動的に調整して、第1および第2の測定対象物の間に実質的に一定の測定間隙を保持するステップとを含む、方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161522871P | 2011-08-12 | 2011-08-12 | |
US61/522,871 | 2011-08-12 | ||
PCT/US2012/049469 WO2013025371A1 (en) | 2011-08-12 | 2012-08-03 | Maintaining a measurement gap in a rheometer |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014521977A JP2014521977A (ja) | 2014-08-28 |
JP6159325B2 true JP6159325B2 (ja) | 2017-07-05 |
Family
ID=47715363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014525073A Active JP6159325B2 (ja) | 2011-08-12 | 2012-08-03 | レオメータ内の測定間隙の保持 |
Country Status (4)
Country | Link |
---|---|
US (2) | US9534996B2 (ja) |
EP (1) | EP2742335B1 (ja) |
JP (1) | JP6159325B2 (ja) |
WO (1) | WO2013025371A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9534996B2 (en) | 2011-08-12 | 2017-01-03 | Waters Technologies Corporation | Maintaining a measurement gap in a rheometer |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3681980A (en) | 1970-08-26 | 1972-08-08 | Monsanto Co | Oscillating disk rheometer |
US4750272A (en) * | 1986-11-06 | 1988-06-14 | Kearney & Trecker Corporation | Tool measuring device employing gap width detection |
US4943771A (en) | 1989-05-19 | 1990-07-24 | The United States Of America As Represented By The Secretary Of The Air Force | Differential eddy current sensor measuring apparatus for use with movable mirror segments |
DE4016434A1 (de) * | 1990-05-22 | 1991-11-28 | Bosch Gmbh Robert | Kapazitiver stellungsgeber |
AT404192B (de) * | 1996-05-02 | 1998-09-25 | Anton Paar Gmbh | Rotationsviskosimeter |
AT409304B (de) * | 1999-09-24 | 2002-07-25 | Anton Paar Gmbh | Rotationsrheometer |
AU2002950831A0 (en) * | 2002-08-16 | 2002-09-12 | Gbc Scientific Equipment Pty Ltd | Rheometer |
JP2004316713A (ja) * | 2003-04-14 | 2004-11-11 | Ishikawajima Harima Heavy Ind Co Ltd | アクチュエータ |
US6798099B1 (en) * | 2003-07-14 | 2004-09-28 | Waters Investment Limited | Devices, systems and methods for sensing temperature of a drag cup in a rheometer motor |
US6997045B2 (en) | 2003-12-19 | 2006-02-14 | W.R. Grace & Co.-Conn. | Rheomixer device |
GB0419152D0 (en) * | 2004-08-27 | 2004-09-29 | Kernow Instr Technology Ltd | A contactless magnetic rotary bearing and a rheometer incorporating such bearing |
US20080110246A1 (en) | 2006-10-19 | 2008-05-15 | Barry Ward Old | Capillary rheometer with instrumented cleaning and packing device |
AT508237B1 (de) | 2009-04-28 | 2011-05-15 | Anton Paar Gmbh | Verfahren und vorrichtung zur bestimmung der rheologischen eigenschaften von mediumsproben |
US9534996B2 (en) | 2011-08-12 | 2017-01-03 | Waters Technologies Corporation | Maintaining a measurement gap in a rheometer |
-
2012
- 2012-08-03 US US14/238,043 patent/US9534996B2/en active Active
- 2012-08-03 JP JP2014525073A patent/JP6159325B2/ja active Active
- 2012-08-03 WO PCT/US2012/049469 patent/WO2013025371A1/en active Application Filing
- 2012-08-03 EP EP12823999.3A patent/EP2742335B1/en active Active
-
2017
- 2017-01-03 US US15/397,388 patent/US10161843B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20170184481A1 (en) | 2017-06-29 |
US9534996B2 (en) | 2017-01-03 |
US20140202236A1 (en) | 2014-07-24 |
EP2742335B1 (en) | 2020-07-08 |
WO2013025371A1 (en) | 2013-02-21 |
EP2742335A1 (en) | 2014-06-18 |
JP2014521977A (ja) | 2014-08-28 |
EP2742335A4 (en) | 2015-03-04 |
US10161843B2 (en) | 2018-12-25 |
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