BE737145A - - Google Patents
Info
- Publication number
- BE737145A BE737145A BE737145DA BE737145A BE 737145 A BE737145 A BE 737145A BE 737145D A BE737145D A BE 737145DA BE 737145 A BE737145 A BE 737145A
- Authority
- BE
- Belgium
Links
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)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Polarising Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6811252A NL6811252A (de) | 1968-08-08 | 1968-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE737145A true BE737145A (de) | 1970-02-06 |
Family
ID=19804316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE737145D BE737145A (de) | 1968-08-08 | 1969-08-06 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3630622A (de) |
| JP (1) | JPS5245225B1 (de) |
| BE (1) | BE737145A (de) |
| CA (1) | CA965499A (de) |
| CH (1) | CH531163A (de) |
| DE (1) | DE1939005C3 (de) |
| FR (1) | FR2016904B1 (de) |
| GB (1) | GB1282048A (de) |
| NL (1) | NL6811252A (de) |
| SE (1) | SE356588B (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2240968A1 (de) * | 1972-08-21 | 1974-03-07 | Leitz Ernst Gmbh | Optisches verfahren zur messung der relativen verschiebung eines beugungsgitters sowie einrichtungen zu seiner durchfuehrung |
| US3842261A (en) * | 1973-12-20 | 1974-10-15 | Itek Corp | Optical encoder using diffraction imagery in a reflective mode |
| FR2439382A1 (fr) * | 1978-10-19 | 1980-05-16 | Experim Rech Etu Batim Centre | Procede et dispositif pour mesurer les deformations d'un subjectile au moyen d'un reseau |
| US4824208A (en) * | 1984-08-28 | 1989-04-25 | Talig Corporation | Display for contrast enhancement |
| US4967072A (en) * | 1984-09-05 | 1990-10-30 | Canon Kabushiki Kaisha | Interferometric rotating condition detection apparatus |
| JPS60190812A (ja) * | 1984-10-26 | 1985-09-28 | Hitachi Ltd | 位置検出器 |
| GB2185314B (en) * | 1986-01-14 | 1990-09-26 | Canon Kk | Encoder |
| DE3607462A1 (de) * | 1986-03-07 | 1987-09-10 | Philips Patentverwaltung | Anordnung zur messung der spannungsdoppelbrechung eines optischen sensors |
| JPH073344B2 (ja) * | 1987-06-15 | 1995-01-18 | キヤノン株式会社 | エンコ−ダ− |
| EP0486050B1 (de) * | 1990-11-16 | 1998-02-04 | Canon Kabushiki Kaisha | Verfahren und Vorrichtung zum Messen von Verschiebungen |
| JP2862417B2 (ja) * | 1990-11-16 | 1999-03-03 | キヤノン株式会社 | 変位測定装置及び方法 |
| US5104225A (en) * | 1991-01-25 | 1992-04-14 | Mitutoyo Corporation | Position detector and method of measuring position |
| DE19537081A1 (de) * | 1995-10-05 | 1997-04-10 | Happich Gmbh Gebr | Dachhimmel für Fahrzeuge |
| US5894531A (en) * | 1997-03-11 | 1999-04-13 | Karta Technology, Inc. | Method and apparatus for detection of ultrasound using a fiber-optic interferometer |
| CN105784327B (zh) * | 2016-03-03 | 2018-04-03 | 南京理工大学 | 用于测定复合零级波片装配误差的装置与方法 |
| CN109738167A (zh) * | 2019-03-05 | 2019-05-10 | 中国工程物理研究院流体物理研究所 | 一种光栅的二维线密度测量方法及系统 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1548703B2 (de) * | 1966-07-16 | 1971-04-15 | Ernst Leitz Gmbh, 6330 Wetzlar | Fotoelektrischer schrittgeber fuer vierphasen signale |
| CH457204A (de) * | 1966-07-21 | 1968-05-31 | Leitz Ernst Gmbh | Fotoelektrischer Schrittgeber |
| DE1548707C3 (de) * | 1966-07-26 | 1979-02-15 | Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar | Fotoelektrischer Schrittgeber |
| US3496364A (en) * | 1968-01-23 | 1970-02-17 | Dynamics Res Corp | Linear encoder having a fringe pattern produced by optical imaging |
-
1968
- 1968-08-08 NL NL6811252A patent/NL6811252A/xx unknown
-
1969
- 1969-03-05 CH CH1189569A patent/CH531163A/de not_active IP Right Cessation
- 1969-07-31 DE DE1939005A patent/DE1939005C3/de not_active Expired
- 1969-08-05 SE SE10952/69A patent/SE356588B/xx unknown
- 1969-08-05 CA CA058,615A patent/CA965499A/en not_active Expired
- 1969-08-05 GB GB39155/69A patent/GB1282048A/en not_active Expired
- 1969-08-06 US US847903A patent/US3630622A/en not_active Expired - Lifetime
- 1969-08-06 BE BE737145D patent/BE737145A/xx unknown
- 1969-08-07 JP JP44062272A patent/JPS5245225B1/ja active Pending
- 1969-08-08 FR FR696933570A patent/FR2016904B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1939005C3 (de) | 1980-04-24 |
| DE1939005B2 (de) | 1979-08-09 |
| FR2016904B1 (de) | 1974-06-28 |
| US3630622A (en) | 1971-12-28 |
| NL6811252A (de) | 1970-02-10 |
| GB1282048A (en) | 1972-07-19 |
| FR2016904A1 (de) | 1970-05-15 |
| CA965499A (en) | 1975-04-01 |
| JPS5245225B1 (de) | 1977-11-14 |
| DE1939005A1 (de) | 1970-02-12 |
| SE356588B (de) | 1973-05-28 |
| CH531163A (de) | 1972-11-30 |