GB938441A - Improvements in or relating to measuring systems - Google Patents
Improvements in or relating to measuring systemsInfo
- Publication number
- GB938441A GB938441A GB2456361A GB2456361A GB938441A GB 938441 A GB938441 A GB 938441A GB 2456361 A GB2456361 A GB 2456361A GB 2456361 A GB2456361 A GB 2456361A GB 938441 A GB938441 A GB 938441A
- Authority
- GB
- United Kingdom
- Prior art keywords
- containers
- radiation
- path
- detecting means
- source
- 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
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/288—X-rays; Gamma rays or other forms of ionising radiation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
938,441. Measuring fill height of containers. INDUSTRIAL NUCLEONICS CORPORATION. July 6, 1961, No. 24563/6 Class 40 (3). In apparatus for determining the fill height of material in containers 18, Fig. 3, by means of a source of penetrative ionizing radiation 30 located on one side of the container and detecting means 32 for said radiation located on the other side of the containers, the detecting means comprise a plurality of elongated detector tubes 33-35 mounted substantially in a plane which also passes through the location of the source and through the level of the desired fill height of the material. In accordance with a first feature of the invention, Fig. 2, the radiation source 30 is located at a distance or close to the path taken by the containers 18, whilst the detecting means 32 is located at a distance b (limited only by the need to maintain a useful signal-to-noise ratio in the detector output), whereby a given change in the fill height of the container extends over a relatively large portion of the radiation flux angle (determined by dimension of the detector aperture c) and the system acquires good resolution. According to a second feature of the invention, Fig. 3, the path between the source 30 and detecting means 32 is inclined at such an angle to the path of the containers that the containers despite being spaced continuously interrupt the radiation. By this means a pulse output is not produced by the detecting means in response to the passage of succession containers and output variations are due only to fill height variations. The detector may comprise three Geiger-Muller tubes 33-35, successively displaced as shown and connected with the outputs in parallel. The source 30 may comprise a radio-active isotope of cobalt arranged as a cylinder or fine wire disposed end on to the desired radiation path, or a thin film of a radioactive isotope of caesium. Reference is made to a system in which the radiation path is perpendicular to the path of containers 18. The detector output may be used to control the apparatus dispensing the material to the containers, reference being made in this respect to Specification 938,442.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2456361A GB938441A (en) | 1961-07-06 | 1961-07-06 | Improvements in or relating to measuring systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2456361A GB938441A (en) | 1961-07-06 | 1961-07-06 | Improvements in or relating to measuring systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB938441A true GB938441A (en) | 1963-10-02 |
Family
ID=10213600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2456361A Expired GB938441A (en) | 1961-07-06 | 1961-07-06 | Improvements in or relating to measuring systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB938441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079421A1 (en) * | 1981-10-30 | 1983-05-25 | KRW Energy Systems Inc. | Improved solids mass flow indication |
-
1961
- 1961-07-06 GB GB2456361A patent/GB938441A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079421A1 (en) * | 1981-10-30 | 1983-05-25 | KRW Energy Systems Inc. | Improved solids mass flow indication |
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