SE8402227D0 - Apparatus for measuring optical properties of paper - Google Patents
Apparatus for measuring optical properties of paperInfo
- Publication number
- SE8402227D0 SE8402227D0 SE8402227A SE8402227A SE8402227D0 SE 8402227 D0 SE8402227 D0 SE 8402227D0 SE 8402227 A SE8402227 A SE 8402227A SE 8402227 A SE8402227 A SE 8402227A SE 8402227 D0 SE8402227 D0 SE 8402227D0
- Authority
- SE
- Sweden
- Prior art keywords
- optical properties
- measuring optical
- paper
- detector
- grid
- Prior art date
Links
Classifications
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/86—Investigating moving sheets
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/86—Investigating moving sheets
- G01N2021/8663—Paper, e.g. gloss, moisture content
-
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/127—Calibration; base line adjustment; drift compensation
Landscapes
- 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)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI831543A FI831543A0 (fi) | 1983-05-05 | 1983-05-05 | Metod och anordning foer automatisk bestaemning av papprets optiska egenskaper |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8402227D0 true SE8402227D0 (sv) | 1984-04-24 |
SE8402227L SE8402227L (sv) | 1984-11-06 |
Family
ID=8517150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8402227A SE8402227L (sv) | 1983-05-05 | 1984-04-24 | Apparat for metning av optiska egenskaper hos papper |
Country Status (5)
Country | Link |
---|---|
US (1) | US4678325A (sv) |
JP (1) | JPS6017340A (sv) |
CA (1) | CA1225534A (sv) |
FI (1) | FI831543A0 (sv) |
SE (1) | SE8402227L (sv) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61203347U (sv) * | 1985-06-10 | 1986-12-20 | ||
US4886355A (en) * | 1988-03-28 | 1989-12-12 | Keane Thomas J | Combined gloss and color measuring instrument |
US4944594A (en) * | 1988-04-28 | 1990-07-31 | Process Automation Business, Inc. | Apparatus and method for measuring dark and bright reflectances of sheet material |
DE3843876A1 (de) * | 1988-12-24 | 1990-07-12 | Leitz Wild Gmbh | Spektralmikroskop mit einem photometer |
JPH0372346U (sv) * | 1989-11-20 | 1991-07-22 | ||
JPH0372347U (sv) * | 1989-11-20 | 1991-07-22 | ||
US5082529A (en) * | 1990-03-27 | 1992-01-21 | Abb Process Automation Inc. | Color measurement and control of a sheet material |
US5305093A (en) * | 1991-10-31 | 1994-04-19 | Miles Inc. | Spectrometer for conducting turbidimetric and colormetric measurements |
US5377000A (en) * | 1993-04-29 | 1994-12-27 | Color And Appearance Technology, Inc. | Portable appearance measuring apparatus |
FI112975B (sv) | 1997-09-15 | 2004-02-13 | Metso Automation Oy | Förfarande och anordning för mätning av kvalitetsegenskaper hos papper från en rörlig pappersbana vid en pappersmaskin |
US8139220B2 (en) * | 2008-09-16 | 2012-03-20 | X-Rite, Inc. | Point-of purchase (POP) spectrophotometer for open-view measurement of a color sample |
ES2541841T3 (es) * | 2011-01-25 | 2015-07-27 | Gea Food Solutions Bakel B.V. | Cadena de producción de alimentos |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3762817A (en) * | 1972-02-23 | 1973-10-02 | Minnesota Mining & Mfg | Spectral densitometer |
US3936189A (en) * | 1974-03-13 | 1976-02-03 | Sentrol Systems Ltd. | On-line system for monitoring the color, opacity and brightness of a moving web |
US4015904A (en) * | 1974-03-13 | 1977-04-05 | Sentrol Systems Ltd. | Optical shoe assembly for use with a multi-sensor optical head |
US4084906A (en) * | 1975-02-06 | 1978-04-18 | Honeywell Inc. | Multigas digital correlation spectrometer |
DE2651086B2 (de) * | 1976-11-09 | 1978-11-09 | Hewlett-Packard Gmbh, 7030 Boeblingen | Photometer |
US4243319A (en) * | 1977-01-24 | 1981-01-06 | Nekoosa Papers, Inc. | Optical property measurement system and method |
US4222064A (en) * | 1977-03-07 | 1980-09-09 | Nekoosa Papers Inc. | Optical property measurement system and method |
US4439038A (en) * | 1981-03-03 | 1984-03-27 | Sentrol Systems Ltd. | Method and apparatus for measuring and controlling the color of a moving web |
US4565444A (en) * | 1982-11-01 | 1986-01-21 | Sentrol Systems Ltd. | Electronically scanned spectrometer color, brightness and opacity measurement and control system |
-
1983
- 1983-05-05 FI FI831543A patent/FI831543A0/fi not_active Application Discontinuation
-
1984
- 1984-04-24 SE SE8402227A patent/SE8402227L/sv not_active Application Discontinuation
- 1984-04-24 US US06/603,512 patent/US4678325A/en not_active Expired - Fee Related
- 1984-05-04 JP JP59090048A patent/JPS6017340A/ja active Granted
- 1984-05-04 CA CA000453600A patent/CA1225534A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE8402227L (sv) | 1984-11-06 |
JPH049464B2 (sv) | 1992-02-20 |
CA1225534A (en) | 1987-08-18 |
JPS6017340A (ja) | 1985-01-29 |
US4678325A (en) | 1987-07-07 |
FI831543A0 (fi) | 1983-05-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8402227-6 Effective date: 19880303 |