NL7506508A - Optische inrichting voor het meten van kleine ver- schillen. - Google Patents
Optische inrichting voor het meten van kleine ver- schillen.Info
- Publication number
- NL7506508A NL7506508A NL7506508A NL7506508A NL7506508A NL 7506508 A NL7506508 A NL 7506508A NL 7506508 A NL7506508 A NL 7506508A NL 7506508 A NL7506508 A NL 7506508A NL 7506508 A NL7506508 A NL 7506508A
- Authority
- NL
- Netherlands
- Prior art keywords
- optical device
- small differences
- measuring small
- measuring
- differences
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 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
- G01D5/347—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 using displacement encoding scales
- G01D5/34776—Absolute encoders with analogue or digital scales
- G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/4133—Refractometers, e.g. differential
Landscapes
- Physics & Mathematics (AREA)
- General 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)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7420285A FR2274894A1 (fr) | 1974-06-12 | 1974-06-12 | Appareil de mesure de faibles ecarts, notamment par refractometrie |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7506508A true NL7506508A (nl) | 1975-12-16 |
Family
ID=9139937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7506508A NL7506508A (nl) | 1974-06-12 | 1975-06-02 | Optische inrichting voor het meten van kleine ver- schillen. |
Country Status (8)
Country | Link |
---|---|
US (1) | US3983390A (nl) |
BE (1) | BE830188A (nl) |
CH (1) | CH592866A5 (nl) |
DE (1) | DE2526110C3 (nl) |
FR (1) | FR2274894A1 (nl) |
GB (1) | GB1514236A (nl) |
IT (1) | IT1036122B (nl) |
NL (1) | NL7506508A (nl) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4078173A (en) * | 1976-06-24 | 1978-03-07 | Pertec Computer Corporation | Light amplitude control system for position and motion transducers |
DE3045156C2 (de) * | 1980-12-01 | 1983-12-08 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Vorrichtung zur Spektralanalyse |
US4668093A (en) * | 1983-06-13 | 1987-05-26 | Mcdonnell Douglas Corporation | Optical grating demodulator and sensor system |
US4950891A (en) * | 1987-09-30 | 1990-08-21 | Kabushiki Kaisha Okuma Tekkosho | High resolution optical encoder having a long detection stroke |
JP2539269B2 (ja) * | 1989-07-17 | 1996-10-02 | オークマ株式会社 | 光学式エンコ―ダ |
JP4006355B2 (ja) * | 2003-04-28 | 2007-11-14 | アルプス電気株式会社 | 濃度測定ユニット並びにこの濃度測定ユニットを備えた燃料電池 |
US8852535B2 (en) * | 2003-10-03 | 2014-10-07 | Saudi Arabian Oil Company | Device and method for measuring elemental sulfur in gas in gas lines |
JP6232378B2 (ja) * | 2011-08-16 | 2017-11-15 | ウオーターズ・テクノロジーズ・コーポレイシヨン | 示差屈折率検出用フローセル |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1208087B (de) * | 1964-04-22 | 1965-12-30 | Wenczler & Heidenhain | Einrichtung zum Messen von Laengen mittels Impulszaehlung |
US3451054A (en) * | 1965-03-18 | 1969-06-17 | Gen Electric | Light optic digital transducer using displaced ronchi rulings |
DE1282988B (de) * | 1965-05-28 | 1968-11-14 | Zeiss Carl Fa | Einrichtung zum Messen von Lageaenderungen zweier zueinander beweglicher Teile unterVerwendung einer inkohaerenten Strahlung |
US3426211A (en) * | 1965-10-21 | 1969-02-04 | Honeywell Inc | Refractometers |
DE1966918U (de) * | 1967-06-15 | 1967-08-24 | Bodenseewerk Perkin Elmer Co | Differentialrefraktometer. |
DE1921507C2 (de) * | 1969-04-26 | 1971-02-11 | Zeiss Carl Fa | Einrichtung zur Erzeugung phasenverschobener elektrischer Signale |
US3728715A (en) * | 1970-04-20 | 1973-04-17 | Bendix Corp | Digital sun sensor having sub-image resolution |
-
1974
- 1974-06-12 FR FR7420285A patent/FR2274894A1/fr active Granted
-
1975
- 1975-05-28 IT IT68383/75A patent/IT1036122B/it active
- 1975-05-30 GB GB23663/75A patent/GB1514236A/en not_active Expired
- 1975-06-02 NL NL7506508A patent/NL7506508A/nl not_active Application Discontinuation
- 1975-06-06 US US05/584,496 patent/US3983390A/en not_active Expired - Lifetime
- 1975-06-11 DE DE2526110A patent/DE2526110C3/de not_active Expired
- 1975-06-11 CH CH756775A patent/CH592866A5/xx not_active IP Right Cessation
- 1975-06-12 BE BE157295A patent/BE830188A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US3983390A (en) | 1976-09-28 |
GB1514236A (en) | 1978-06-14 |
DE2526110B2 (de) | 1981-07-16 |
IT1036122B (it) | 1979-10-30 |
CH592866A5 (nl) | 1977-11-15 |
FR2274894A1 (fr) | 1976-01-09 |
DE2526110C3 (de) | 1982-04-08 |
BE830188A (fr) | 1975-12-12 |
DE2526110A1 (de) | 1976-01-02 |
FR2274894B1 (nl) | 1977-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
BV | The patent application has lapsed |