GB1196748A - Improvements in or relating to the Measurement of Dimensions of Bodies. - Google Patents
Improvements in or relating to the Measurement of Dimensions of Bodies.Info
- Publication number
- GB1196748A GB1196748A GB3165667A GB3165667A GB1196748A GB 1196748 A GB1196748 A GB 1196748A GB 3165667 A GB3165667 A GB 3165667A GB 3165667 A GB3165667 A GB 3165667A GB 1196748 A GB1196748 A GB 1196748A
- Authority
- GB
- United Kingdom
- Prior art keywords
- standard
- counter
- replaced
- cells
- wire
- 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
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
1,196,748. Digital measurements. JOHNSON, MATTHEY & CO. Ltd. 24 June, 1968 [10 July, 1967], No. 31656/67. Heading G4H. [Also in Division G1] A dimension of a body is compared with a known dimension of a standard body by moving a radiation beam of small cross-section over the dimensions in turn and comparing the times taken for the beam to move over the two dimensions. A beam of light from a source 1 is scanned across a standard wire 4 and a fixed or moving test wire 5 by a mirror drum 2. The square waves produced in photo-cells 3, 3a by interruption of the beam are amplified at 6, 6a, clipped at 7, 7a and used to open gates 8, 8a which pass pulses from an oscillator 9 to the " count up " and "count down" inputs of a counter 10. The number on counter 10 represents the deviation of the diameter of the test wire from the standard. The counter is calibrated by making a number of scans across the standard wire and equating the mean count to the known diameter. In a modification cells 3, 3a are replaced by a single cell and a switch operated by drum 2 segregates the standard and test pulses. The source 1 and drum 2 may be replaced by a C.R.T. flying spot scanner. The gates 8, 8a and counter may be replaced by a C.R.T. display of the pulses from cells 3, 3a. Ultra-violet infra-red or X-radiation may be used instead of light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3165667A GB1196748A (en) | 1967-07-10 | 1967-07-10 | Improvements in or relating to the Measurement of Dimensions of Bodies. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3165667A GB1196748A (en) | 1967-07-10 | 1967-07-10 | Improvements in or relating to the Measurement of Dimensions of Bodies. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1196748A true GB1196748A (en) | 1970-07-01 |
Family
ID=10326435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3165667A Expired GB1196748A (en) | 1967-07-10 | 1967-07-10 | Improvements in or relating to the Measurement of Dimensions of Bodies. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1196748A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146327A (en) * | 1976-12-27 | 1979-03-27 | Autech | Optical triangulation gauging system |
-
1967
- 1967-07-10 GB GB3165667A patent/GB1196748A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146327A (en) * | 1976-12-27 | 1979-03-27 | Autech | Optical triangulation gauging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |