GB1196740A - Improvements in Counting Systems. - Google Patents
Improvements in Counting Systems.Info
- Publication number
- GB1196740A GB1196740A GB4820566A GB4820566A GB1196740A GB 1196740 A GB1196740 A GB 1196740A GB 4820566 A GB4820566 A GB 4820566A GB 4820566 A GB4820566 A GB 4820566A GB 1196740 A GB1196740 A GB 1196740A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sensed
- photo
- area
- pulse
- cell
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
- H03K21/02—Input circuits
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
1,196,740. Counting-apparatus. DRIVER SOUTHALL Ltd. 25 Oct., 1967 [27 Oct., 1966], No. 48205/66. Heading G4D. [Also in Division G1] In a detector arrangement for counter in which the articles are sensed photo-electrically, the photo-cell gives an analogue output proportional to the sensed area of each article, and an output pulse is produced if this area exceeds a given area. As shown light from a lamp 10 passes through a bi-convex condensing lens and is collimated into a broad uniform beam in a counting zone 14 by a plano-convex lens 12. The beam leaving the counting zone is focused on to a vacuum photo-cell 15 by a plano-convex lens 13. Thus the height of the output pulse from the photo-cell is proportional to the area of the article sensed. This pulse is differentiated by a capacitor to produce two oppositely poled pulses one of which is removed by a diode shunt to ground. The remaining one triggers a Schmitt Trigger to give a standard pulse output which is fed to a counter. A plurality of such arrangements may be located along mutually orthoganal axes such that plane articles are sensed by at least one arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4820566A GB1196740A (en) | 1966-10-27 | 1966-10-27 | Improvements in Counting Systems. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4820566A GB1196740A (en) | 1966-10-27 | 1966-10-27 | Improvements in Counting Systems. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1196740A true GB1196740A (en) | 1970-07-01 |
Family
ID=10447749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4820566A Expired GB1196740A (en) | 1966-10-27 | 1966-10-27 | Improvements in Counting Systems. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1196740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2307984A (en) * | 1994-08-28 | 1997-06-11 | Hubert Hergeth | Detecting foreign particles in flow of fibres |
-
1966
- 1966-10-27 GB GB4820566A patent/GB1196740A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2307984A (en) * | 1994-08-28 | 1997-06-11 | Hubert Hergeth | Detecting foreign particles in flow of fibres |
| GB2307984B (en) * | 1994-08-28 | 1999-06-09 | Hubert Hergeth | Device for detecting foreign particles in a fibre line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |