GB2002899A - Sorting bodies on a conveyor - Google Patents
Sorting bodies on a conveyorInfo
- Publication number
- GB2002899A GB2002899A GB7833331A GB7833331A GB2002899A GB 2002899 A GB2002899 A GB 2002899A GB 7833331 A GB7833331 A GB 7833331A GB 7833331 A GB7833331 A GB 7833331A GB 2002899 A GB2002899 A GB 2002899A
- Authority
- GB
- United Kingdom
- Prior art keywords
- infrared light
- conveyor
- adjustable
- level
- sorting bodies
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Apparatus for detection and removal of foreign bodies 13 from vegetables 12 on a conveyor belt 10 comprises a multichannel system using the reflection of polarized infrared light, each channel comprising a modulated infrared light source 1a synchronized with the other sources and a detector 2a feeding unit 19a which has an amplifier, filter and A.G.C circuit feeding at least one comparator providing a reference level which is the same for the other comparators and adjustable and which gives as soon as this level is exceeded an output signal operating an ejector 16, 14. There may be more than one of these common reference levels, adjustable via control connection 20 by thumbwheel digit switches 23, 24. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE180265A BE857904A (en) | 1977-08-18 | 1977-08-18 | DEVICE BASED ON THE REFLEKTION OF POLARIZED INFRARED LIGHT FOR DETECTION AND REMOVAL OF FOREIGN OBJECTS BETWEEN LOOSE VEGETABLES DISTRIBUTED ON A CONVEYOR BELT IN MOTION |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2002899A true GB2002899A (en) | 1979-02-28 |
GB2002899B GB2002899B (en) | 1982-02-17 |
Family
ID=3843031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7833331A Expired GB2002899B (en) | 1977-08-18 | 1978-08-15 | Detection and rejection of foreign bodies from vegetables and the like transported on a conveyor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2002899B (en) |
-
1978
- 1978-08-15 GB GB7833331A patent/GB2002899B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2002899B (en) | 1982-02-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |