JPS55125413A - Flow rate measuring device - Google Patents
Flow rate measuring deviceInfo
- Publication number
- JPS55125413A JPS55125413A JP3371179A JP3371179A JPS55125413A JP S55125413 A JPS55125413 A JP S55125413A JP 3371179 A JP3371179 A JP 3371179A JP 3371179 A JP3371179 A JP 3371179A JP S55125413 A JPS55125413 A JP S55125413A
- Authority
- JP
- Japan
- Prior art keywords
- radiation
- nuclides
- pipe
- pipeline
- vapor
- 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.)
- Pending
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To make it possible to obtain the flow rate of within a pipeline from the outside, to unnecessitage attachment of an installation pipe to the pipe and to facilitate the pipeline working by detecting radiation at two points of the pipeline including two kinds of radiation nuclides having different half-value periods.
CONSTITUTION: From the measuring points A and B of a main vapor pipe 10 the radiation is detected by radiation detectors 20 covered with leak preventive shielding vessels 21. Then, specific energy parts determined in eash of radiation nuclides are discriminated by radiation measuring circuits 30, respectively. That is, decay phase logarithms α and β of nuclides a and b at the point A, dicay phase logarithms γ and δ at the point B and the half-value periods Ta and Tb of the nuclides a and b are supplied to a circuit 40, where a vapor density I is added by a densimeter 13 and the vapor flow of the main vapor pipe is calculated by carrying out computation of formula (I), and the result of the computation is displayed in an indicator 41. By this organization, the flow can be measured from the outside, contaminations due to the rediation can be prevented and maintenance and inspection of the device can be facilitated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3371179A JPS55125413A (en) | 1979-03-22 | 1979-03-22 | Flow rate measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3371179A JPS55125413A (en) | 1979-03-22 | 1979-03-22 | Flow rate measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55125413A true JPS55125413A (en) | 1980-09-27 |
Family
ID=12393987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3371179A Pending JPS55125413A (en) | 1979-03-22 | 1979-03-22 | Flow rate measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55125413A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4520677A (en) * | 1981-10-30 | 1985-06-04 | The United States Of America As Represented By The United States Department Of Energy | Solids mass flow indication with radiation |
-
1979
- 1979-03-22 JP JP3371179A patent/JPS55125413A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4520677A (en) * | 1981-10-30 | 1985-06-04 | The United States Of America As Represented By The United States Department Of Energy | Solids mass flow indication with radiation |
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