GB2009393A - Photoelectric investigation of crops - Google Patents
Photoelectric investigation of cropsInfo
- Publication number
- GB2009393A GB2009393A GB7836673A GB7836673A GB2009393A GB 2009393 A GB2009393 A GB 2009393A GB 7836673 A GB7836673 A GB 7836673A GB 7836673 A GB7836673 A GB 7836673A GB 2009393 A GB2009393 A GB 2009393A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tuned circuit
- transmitter
- receiver
- physical characteristic
- monitoring
- 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.)
- Withdrawn
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
Abstract
Apparatus for determining a physical characteristic of a food crop 5 e.g. vegetable or fruit, comprises a transmitter of near infrared radiation 4 e.g. at 0.9 microns, a receiver 6, a tuned circuit 8 connected to receive an electrical signal from said receiver, an oscillator 7 that controls the frequency of the the transmitter 4 and the oscillation frequency of the tuned circuit 8, and a data analyser 10 capable of comparing the output from the tuned circuit 8 with at least one reference signal of a magnitude corresponding to said predetermined physical characteristic. The apparatus can be used to sort ripe and unripe tomatoes, for monitoring a bulk crop in storage, e.g. bananas, or for monitoring crops during growth. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7836673A GB2009393A (en) | 1977-09-16 | 1978-09-13 | Photoelectric investigation of crops |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3866677 | 1977-09-16 | ||
GB7836673A GB2009393A (en) | 1977-09-16 | 1978-09-13 | Photoelectric investigation of crops |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2009393A true GB2009393A (en) | 1979-06-13 |
Family
ID=26263879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7836673A Withdrawn GB2009393A (en) | 1977-09-16 | 1978-09-13 | Photoelectric investigation of crops |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2009393A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986000420A1 (en) * | 1984-06-25 | 1986-01-16 | Enpece Ab | Method and device for non-contact detection of plants |
GB2172699A (en) * | 1985-03-19 | 1986-09-24 | Anzai Mfg Co Ltd | Apparatus and method for separating mixed products |
-
1978
- 1978-09-13 GB GB7836673A patent/GB2009393A/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986000420A1 (en) * | 1984-06-25 | 1986-01-16 | Enpece Ab | Method and device for non-contact detection of plants |
GB2172699A (en) * | 1985-03-19 | 1986-09-24 | Anzai Mfg Co Ltd | Apparatus and method for separating mixed products |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |