SE7908068L - SET AND DEVICE FOR OPTICAL CONTROL OF MILL PRODUCTS - Google Patents
SET AND DEVICE FOR OPTICAL CONTROL OF MILL PRODUCTSInfo
- Publication number
- SE7908068L SE7908068L SE7908068A SE7908068A SE7908068L SE 7908068 L SE7908068 L SE 7908068L SE 7908068 A SE7908068 A SE 7908068A SE 7908068 A SE7908068 A SE 7908068A SE 7908068 L SE7908068 L SE 7908068L
- Authority
- SE
- Sweden
- Prior art keywords
- measurement
- transducer
- beams
- brightness
- reference beam
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 1
- 238000005259 measurement Methods 0.000 abstract 8
- 235000013312 flour Nutrition 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000000265 homogenisation Methods 0.000 abstract 1
- 230000015654 memory Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
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
- G01N21/17—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
- G01N33/10—Starch-containing substances, e.g. dough
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Laser Beam Processing (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The surface 8 of a layer of flour is illuminated from a lamp 1, and a reflected intensity of light 5 is detected by transducer 7. In Fig. 1, the light beam from the lamp is optically split at 3 into a reference beam 4 and measurement beam 5. The measurement beam is cyclicly chopped by a rotating drum shutter in such a way that only the reference beam will strike the transducer during a first measurement phase, and during a second measurement phase both reference and measurement beams will be applied to the transducer. The output signals of the transducer are stored in memories 13, 14 so that both output signals can be taken simultaneously to an evaluating device 15, 16 for determination of the relative brightness value of the measurement beam in comparison to the reference beam. In the arrangement of Fig. 5, the chopper drum construction is such that measurement and reference beam intensity signals are obtained individually. In the arrangement of Fig. 6, both beams are chopped such that the respective signals are again obtained individually but separated by periods in which both beams are blocked and background light is sensed. The brightness measurement can be used in a method of measuring and/or monitoring the homogeneity of a batch of flour in which a plurality of streams of product from the batch are formed and recombined, the brightness of each stream being measured and homogenization being continued until the desired brightness is obtained. <IMAGE>
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1018978 | 1978-09-29 | ||
| CH1029978 | 1978-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7908068L true SE7908068L (en) | 1980-03-30 |
Family
ID=25706082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7908068A SE7908068L (en) | 1978-09-29 | 1979-09-28 | SET AND DEVICE FOR OPTICAL CONTROL OF MILL PRODUCTS |
Country Status (4)
| Country | Link |
|---|---|
| FR (1) | FR2437621A1 (en) |
| GB (1) | GB2034027B (en) |
| IT (1) | IT7968890A0 (en) |
| SE (1) | SE7908068L (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3220282C3 (en) * | 1982-05-28 | 1995-05-18 | Roland Man Druckmasch | Device for operationally recording a measure of the amount of dampening solution on the rotating printing plate in offset printing machines |
| DE3332986A1 (en) * | 1983-09-10 | 1985-04-04 | Optronik Gmbh, 1000 Berlin | Reflectivity meter for measuring the spectral radiance factor for 45/0 measuring geometry |
| US4742228A (en) * | 1984-04-19 | 1988-05-03 | Gebruder Buhler Ag | Infrared measuring apparatus and process for the continuous quantitative determination of individual components of flour or other groundable food products |
| FR2658609A1 (en) * | 1990-02-21 | 1991-08-23 | Luzenac Talc | Method and device for measuring the reflectance of a graded (granular) product |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL297370A (en) * | 1962-08-31 | 1900-01-01 | ||
| US3623817A (en) * | 1970-02-24 | 1971-11-30 | Ciba Ltd | Comparison densitometer including means to maintain the detector output at a means valve |
| NL7210356A (en) * | 1971-08-06 | 1973-02-08 | ||
| GB1356049A (en) * | 1971-12-21 | 1974-06-12 | Fortschritt Veb K | Reflectance comparator |
| US3817628A (en) * | 1972-08-17 | 1974-06-18 | Hoffmann La Roche | Reflectometer for on-line analysis of granular powders |
-
1979
- 1979-09-28 IT IT7968890A patent/IT7968890A0/en unknown
- 1979-09-28 SE SE7908068A patent/SE7908068L/en not_active Application Discontinuation
- 1979-09-28 FR FR7924234A patent/FR2437621A1/en active Pending
- 1979-10-01 GB GB7934006A patent/GB2034027B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT7968890A0 (en) | 1979-09-28 |
| GB2034027A (en) | 1980-05-29 |
| FR2437621A1 (en) | 1980-04-25 |
| GB2034027B (en) | 1983-04-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 7908068-5 |