JP2001502423A - 光学位置測定装置 - Google Patents
光学位置測定装置Info
- Publication number
- JP2001502423A JP2001502423A JP10517958A JP51795898A JP2001502423A JP 2001502423 A JP2001502423 A JP 2001502423A JP 10517958 A JP10517958 A JP 10517958A JP 51795898 A JP51795898 A JP 51795898A JP 2001502423 A JP2001502423 A JP 2001502423A
- Authority
- JP
- Japan
- Prior art keywords
- scanning
- measuring device
- position measuring
- scale
- fields
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims description 25
- 230000000007 visual effect Effects 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 3
- 230000010363 phase shift Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 102000003817 Fos-related antigen 1 Human genes 0.000 abstract 1
- 108090000123 Fos-related antigen 1 Proteins 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000669003 Aspidiotus destructor Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/36—Forming the light into pulses
- G01D5/38—Forming the light into pulses by diffraction gratings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 相対運動する二つの物体の相対位置を検出するため、 −走査ユニット(A’)が走査目盛の形の少なくとも二つの走査視野(AF 1’,AF2’)を持つ走査板(AP’)を有し、前記走査視野が測定方 向(x)に目盛板の目盛(M’)の目盛周期(TP’)の数分の1だけず らして配置されため、異なった走査視野(AF1’,AF2’)に移動に 応じて変調される位相が一定値ずれた部分信号が付属する、両方の物体に それぞれ連結する目盛板の目盛(M’)と走査ユニット(A’)と、 −異なった走査視野(AF1’,AF2’)の前記部分信号を検出のために 空間的に分離する走査視野(AF1’,AF2’)に付属する光学偏向部 材(AE1’,AE2’)と、 −出力側で更に処理するため90°位相差のある二つの出力信号が生じるよう に互いに結線され、位相のずれた部分信号を異なった空間方向で検知する 走査板(AP)に後置されている少なくとも2対の検出素子(D11’,D 12’,D21’,D22’)と、 を備えた光学位置測定装置において、 −少なくとも二つの走査視野(AF1’,AF2’)をD’=TP’/2*(N +1/4)だけ互いにずらして走査板(AP)上に配置し、ここでTP’が目 盛板の目盛(M’)の目盛周期であり、N=0,1,2,...であり、その結 果一方の走査視野(AF1’,AF2’)の各部分信号に対して90°位相 のずれた他方の走査視野(AF1’,AF2’)の部分信号が生じ、一つ の走査視野(AF1’,AF2’)の検出素子(D11’,D12’,D21’, D22’)がそれぞれ逆並列に接続されているので、各走査視野(AF1’ ,AF2’)に生じた出力信号(0°,90°)が付属し、両方の走査視野 (AF1’,AF2’)の生じた出力信号(0°,90°)には90°の位相 差があることを特徴とする光学位置測定装置。 2. 各走査視野(AF1’,AF2’)に共通面内に配置された二つの検出素子 (D11’,D12',D21’,D22’)が付属し、これ等の検出素子には一定 位相差の部分信号が生じることを特徴とする請求項1に記載の光学位置測定 装置。 3. 検出素子(D11’,D12’,D21’,D22’)は一つの光源(L’)と共に 支持回路基板(T’)の上に配置されていることを特徴とする請求項2に記 載の光学位置測定装置。 4. 走査視野(AF1’,AF2’)の走査目盛は+1次と−1次の回折次数の 変調に関して最適にされているので、これ等の回折次数の部分信号の間には 120°の位相差が生じることを特徴とする請求項2に記載の光学位置測定装 置。 5. 光学偏向部材(AE1’,AE2’)はプリズムで形成されていることを特 徴とする請求項1に記載の光学位置測定装置。 6. 光学偏向部材(AE1’,AE2’)は回折格子構造体で形成されているこ とを特徴とする請求項1に記載の光学位置測定装置。 7. 位置測定装置は直線測定装置として形成されていることを特徴とする請求項 1〜6の何れか1項に記載の光学位置測定装置。 8. 位置測定装置は角度測定装置として形成されていることを特徴とする請求項 1〜6の何れか1項に記載の光学位置測定装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19642680 | 1996-10-16 | ||
DE19642680.4 | 1996-10-16 | ||
PCT/EP1997/005211 WO1998016802A1 (de) | 1996-10-16 | 1997-09-23 | Optische positionsmesseinrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2001502423A true JP2001502423A (ja) | 2001-02-20 |
JP2001502423A5 JP2001502423A5 (ja) | 2005-05-12 |
JP3999274B2 JP3999274B2 (ja) | 2007-10-31 |
Family
ID=7808916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51795898A Expired - Fee Related JP3999274B2 (ja) | 1996-10-16 | 1997-09-23 | 光学位置測定装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6151128A (ja) |
EP (1) | EP0932819B1 (ja) |
JP (1) | JP3999274B2 (ja) |
AT (1) | ATE212714T1 (ja) |
DE (2) | DE59706261D1 (ja) |
WO (1) | WO1998016802A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10333772A1 (de) * | 2002-08-07 | 2004-02-26 | Dr. Johannes Heidenhain Gmbh | Interferenzielle Positionsmesseinrichtung |
US9212990B1 (en) | 2011-12-06 | 2015-12-15 | Zybertec Llc | System and methods for molecular detection using intracavity laser absorption spectroscopy |
JP6705649B2 (ja) * | 2015-12-22 | 2020-06-03 | 株式会社ミツトヨ | エンコーダ |
JP6664211B2 (ja) * | 2015-12-22 | 2020-03-13 | 株式会社ミツトヨ | エンコーダ |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3239108A1 (de) * | 1982-10-22 | 1984-04-26 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Positionsmessverfahren und einrichtungen zur durchfuehrung des verfahrens |
GB8413955D0 (en) * | 1984-05-31 | 1984-07-04 | Pa Consulting Services | Displacement measuring apparatus |
DE3541199C1 (de) * | 1985-11-21 | 1987-06-25 | Heidenhain Gmbh Dr Johannes | Lichtelektrische Positionsmesseinrichtung |
US5283434A (en) * | 1991-12-20 | 1994-02-01 | Canon Kabushiki Kaisha | Displacement detecting device with integral optics |
JP3005131B2 (ja) * | 1992-12-28 | 2000-01-31 | キヤノン株式会社 | 変位検出装置 |
DE4316221C2 (de) * | 1993-05-14 | 1995-11-23 | Heidenhain Gmbh Dr Johannes | Positionsmeßeinrichtung |
JP3196459B2 (ja) * | 1993-10-29 | 2001-08-06 | キヤノン株式会社 | ロータリーエンコーダ |
EP0662603B1 (de) * | 1993-12-08 | 1997-03-12 | Dr. Johannes Heidenhain GmbH | Längenmesssystem |
JP3513251B2 (ja) * | 1994-03-14 | 2004-03-31 | キヤノン株式会社 | 光学式変位センサ |
DE19507613C2 (de) * | 1995-03-04 | 1997-01-23 | Heidenhain Gmbh Dr Johannes | Längen- oder Winkelmeßeinrichtung |
DE19521295C2 (de) * | 1995-06-10 | 2000-07-13 | Heidenhain Gmbh Dr Johannes | Lichtelektrische Positionsmeßeinrichtung |
DE59508231D1 (de) * | 1995-06-22 | 2000-05-31 | Heidenhain Gmbh Dr Johannes | Positionsmesseinrichtung |
-
1997
- 1997-09-23 US US09/242,705 patent/US6151128A/en not_active Expired - Fee Related
- 1997-09-23 EP EP97943885A patent/EP0932819B1/de not_active Expired - Lifetime
- 1997-09-23 WO PCT/EP1997/005211 patent/WO1998016802A1/de active IP Right Grant
- 1997-09-23 AT AT97943885T patent/ATE212714T1/de not_active IP Right Cessation
- 1997-09-23 DE DE59706261T patent/DE59706261D1/de not_active Expired - Lifetime
- 1997-09-23 JP JP51795898A patent/JP3999274B2/ja not_active Expired - Fee Related
- 1997-09-23 DE DE19741848A patent/DE19741848A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE59706261D1 (de) | 2002-03-14 |
WO1998016802A1 (de) | 1998-04-23 |
US6151128A (en) | 2000-11-21 |
DE19741848A1 (de) | 1998-04-23 |
JP3999274B2 (ja) | 2007-10-31 |
EP0932819B1 (de) | 2002-01-30 |
ATE212714T1 (de) | 2002-02-15 |
EP0932819A1 (de) | 1999-08-04 |
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