JP2012506050A - 高精度位置測定用の一体化マイクロアクチュエータおよび線形可変差動変圧器 - Google Patents
高精度位置測定用の一体化マイクロアクチュエータおよび線形可変差動変圧器 Download PDFInfo
- Publication number
- JP2012506050A JP2012506050A JP2011532082A JP2011532082A JP2012506050A JP 2012506050 A JP2012506050 A JP 2012506050A JP 2011532082 A JP2011532082 A JP 2011532082A JP 2011532082 A JP2011532082 A JP 2011532082A JP 2012506050 A JP2012506050 A JP 2012506050A
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- Prior art keywords
- lvdt
- bend
- coil
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- sample
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/22—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
- G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01Q—SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBE MICROSCOPY [SPM]
- G01Q10/00—Scanning or positioning arrangements, i.e. arrangements for actively controlling the movement or position of the probe
- G01Q10/04—Fine scanning or positioning
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/04—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by relative movement of turns or parts of windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
A sin ωt
B sin(ωt+φ)
A sin(ωt)xB sin(ωt+φ)=(AxB)/2(sin(2ωt+φ)+sinφ)
302 上ボールベアリング
303 下ボールベアリング
304 屈曲部
305,306 ディスクインサート
307 支持プレート
Claims (1)
- 非強磁性圧電駆動屈曲部を収容するハウジングであって、前記屈曲部が、その中に一体化され一方の表面が他方の表面の内側で空間的に重ならず同軸配置された第一表面及び第二表面を有し、第一表面上に一次コイルを巻き付けることができ、かつ第二表面上に二次コイルの2つの部分を巻き付けることができ、第二表面及び第三表面が実質的に平行方向に相互に対して移動可能である、ハウジングと、
第一表面及び第二表面の各々への電気接続を可能にする少なくとも1つの構造要素と、
前記一次及び二次コイルの中心軸の方向において前記二次コイルに対する前記一次コイルの移動を高精度で分別検出するデジタル励磁・信号処理エレクトロニクスと、
を含む装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19598308P | 2008-10-14 | 2008-10-14 | |
US61/195,983 | 2008-10-14 | ||
PCT/US2009/005635 WO2010044871A1 (en) | 2008-10-14 | 2009-10-14 | Integrated micro actuator and linear variable defferential transformer for high precision position measurements |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012506050A true JP2012506050A (ja) | 2012-03-08 |
JP5711662B2 JP5711662B2 (ja) | 2015-05-07 |
Family
ID=42106794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011532082A Active JP5711662B2 (ja) | 2008-10-14 | 2009-10-14 | 高精度位置測定用の一体化マイクロアクチュエータおよび線形可変差動変圧器 |
Country Status (4)
Country | Link |
---|---|
US (3) | US8502525B2 (ja) |
EP (1) | EP2335254A4 (ja) |
JP (1) | JP5711662B2 (ja) |
WO (1) | WO2010044871A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8502525B2 (en) * | 2008-10-14 | 2013-08-06 | Oxford Instruments Plc | Integrated micro actuator and IVDT for high precision position measurements |
WO2012018606A1 (en) * | 2010-08-04 | 2012-02-09 | Utica Enterprises, Inc. | Vehicle body assembly apparatus having triaxial position sensing |
US9097737B2 (en) | 2013-11-25 | 2015-08-04 | Oxford Instruments Asylum Research, Inc. | Modular atomic force microscope with environmental controls |
US10345357B2 (en) * | 2016-02-29 | 2019-07-09 | The Boeing Company | Fault detection in variable differential transformer sensors based on zero-crossings of signals |
US20180038714A1 (en) * | 2016-08-02 | 2018-02-08 | Honeywell International Inc. | System and method for determining a position of a moveable device |
US11496034B2 (en) | 2019-06-14 | 2022-11-08 | Apple Inc. | Haptic actuator having a double-wound driving coil for temperature-independent velocity sensing |
US11527946B2 (en) * | 2019-06-14 | 2022-12-13 | Apple Inc. | Haptic actuator having a double-wound driving coil for temperature- and driving current-independent velocity sensing |
EP4040169A1 (en) | 2021-02-03 | 2022-08-10 | Oxford Instruments Asylum Research, Inc. | Automated optimization of afm light source positioning |
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2009
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- 2009-10-14 WO PCT/US2009/005635 patent/WO2010044871A1/en active Application Filing
- 2009-10-14 JP JP2011532082A patent/JP5711662B2/ja active Active
- 2009-10-14 EP EP09820902A patent/EP2335254A4/en not_active Withdrawn
-
2013
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2016
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS6041806U (ja) * | 1983-08-29 | 1985-03-25 | 日産自動車株式会社 | 変位量検出装置 |
JPS6117902A (ja) * | 1984-07-04 | 1986-01-25 | Ishikawajima Harima Heavy Ind Co Ltd | 溶接止端部のフランク角測定センサ− |
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Also Published As
Publication number | Publication date |
---|---|
EP2335254A1 (en) | 2011-06-22 |
WO2010044871A1 (en) | 2010-04-22 |
JP5711662B2 (ja) | 2015-05-07 |
US10337890B2 (en) | 2019-07-02 |
US9518814B2 (en) | 2016-12-13 |
US8502525B2 (en) | 2013-08-06 |
US20170089733A1 (en) | 2017-03-30 |
EP2335254A4 (en) | 2013-01-30 |
US20100213930A1 (en) | 2010-08-26 |
US20130314078A1 (en) | 2013-11-28 |
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