GB654892A - Improvements relating to high speed counters - Google Patents
Improvements relating to high speed countersInfo
- Publication number
- GB654892A GB654892A GB2059748A GB2059748A GB654892A GB 654892 A GB654892 A GB 654892A GB 2059748 A GB2059748 A GB 2059748A GB 2059748 A GB2059748 A GB 2059748A GB 654892 A GB654892 A GB 654892A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counting
- pick
- impulses
- output
- down circuit
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M9/00—Counting of objects in a stack thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
654,892. Counting-apparatus. METROPOLITAN VICKERS ELECTRICAL CO., Ltd. Aug. 4, 1948, No. 20597. [Class 106 (i)] Small undulations or corrugations, such as the edges of a stepped stack of sheet material 1, are counted by drawing an electromechanical pick-up device 2 over them, scaling down the impulses from the. pick-up 2 by means of an electronic counting-down circuit and applying the scaled-down impulses to an electromagnetic counter, e.g. of the telephone call meter type. An amplitude-limiter is preferably included in the pick-up output to discriminate against impulses due to surface roughness of the material. In Fig. 2 the output is applied by an adjustable potentiometer P1 and through a scratch filter R2-C1 to an amplifier V1. The amplified output is passed through a diode limiter V2, which passes pulses of amplitude above the level pre-set by a potentiometer P2, to a further amplifier V3. After D.C. restoration by V4, the pulses are passed through a pulse shaper to the counting-down circuit which operates the electromagnetic counter. Interpolation of the counter readings may be given by neon indicators controlled by the counting- down circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2059748A GB654892A (en) | 1948-08-04 | 1948-08-04 | Improvements relating to high speed counters |
| FR991580D FR991580A (en) | 1948-08-04 | 1949-08-03 | Improvements to electromechanical electronic tube meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2059748A GB654892A (en) | 1948-08-04 | 1948-08-04 | Improvements relating to high speed counters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB654892A true GB654892A (en) | 1951-07-04 |
Family
ID=10148559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2059748A Expired GB654892A (en) | 1948-08-04 | 1948-08-04 | Improvements relating to high speed counters |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR991580A (en) |
| GB (1) | GB654892A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2233484B (en) * | 1989-06-23 | 1993-08-25 | Tokai Carbon Kk | Device for counting small projections or depressions on surfaces of objects |
-
1948
- 1948-08-04 GB GB2059748A patent/GB654892A/en not_active Expired
-
1949
- 1949-08-03 FR FR991580D patent/FR991580A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR991580A (en) | 1951-10-08 |
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