DE2162370A1 - NUCLEAR PHYSICAL MEASURING DEVICE - Google Patents
NUCLEAR PHYSICAL MEASURING DEVICEInfo
- Publication number
- DE2162370A1 DE2162370A1 DE2162370A DE2162370A DE2162370A1 DE 2162370 A1 DE2162370 A1 DE 2162370A1 DE 2162370 A DE2162370 A DE 2162370A DE 2162370 A DE2162370 A DE 2162370A DE 2162370 A1 DE2162370 A1 DE 2162370A1
- Authority
- DE
- Germany
- Prior art keywords
- pipe
- radiation source
- measuring device
- section
- itself
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/12—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being a flowing fluid or a flowing granular solid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Measurement Of Radiation (AREA)
Description
Kernphysikalis che Meßeinrichtung Zur Dichtemessung von Mehrphasengemischen, die in einem Rohr strömen, z.B. von Luft mit verschieden hohen Feuchtigkeitsanteilen oder Gasen verschiedener Konsistenz, kann man auf der einen Seite des Rohres eine radioaktive Strahlungsquelle anordnen, der ein Zählrohr auf der anderen Seite des Rohres zur Bestimmung der durch das Rohr verlaufenden Strahlung zugeordnet ist.Nuclear physics measuring device For density measurement of multiphase mixtures, that flow in a pipe, e.g. air with different levels of moisture or gases of different consistency, one can get one on one side of the pipe Arrange radioactive radiation source, which is a counter tube on the other side of the Tube is assigned to determine the radiation passing through the tube.
Je nach der Dichte des Mehrphasengemisches, die ihrerseits wieder von den Anteilen der einzelnen Komponenten abhängt, ergibt sich bei gleicher Ausgangsstrahlung ein verschiedener Strahlungswert am Zählrohr. Diese Anordnung ist jedoch in bestimmten Punkten unbefriedigend. Z.B. ist der Rohrdurchmesser begrenzet, bei dem noch mit ausreichender Genauigkeit gearbeitet werden kann. Zum anderen ist die gewünschte Mittelwertbildung über dem Rohrquerschnitt nur ungenau.Depending on the density of the multiphase mixture, which in turn again depends on the proportions of the individual components, results from the same output radiation a different radiation value on the counter tube. However, this arrangement is in certain Unsatisfactory points. E.g. the pipe diameter is limited where still with sufficient accuracy can be worked. Second is the one you want Averaging over the pipe cross-section is only imprecise.
Deshalb sucht die Brfindung eine neue Ausbildung einer kernphysikalischen Meßeinrichtung zur Dichtemessung.The finding is therefore looking for a new training in nuclear physics Measuring device for density measurement.
Die Erfindung besteht darin, daß die Strahlungsquelle in der Rohrachse liegt und mehreren, am Umfang des Rohres verteilten Zählrohren zugeordnet ist. Hierdurch erreicht man erheblich bessere Mittelwertbildungen. Je nach Zahl der Zählrohre kann die Mittelwertbildung geradezu beliebig genau gemacht werden. Außerdem ist man vom Rohrdurchmesser weitgehend unabhängig. Bei gleicher Strahlungsintensität und unter Vernachlässigung der Strahlschwächung durch die Rohrwand kann man bei der erfindungsgemaßen Meßeinrichtung mindestens doppelte Rohrdurchmesser, deh. 4-fache Rohrquerschnitt, überwachen.The invention consists in that the radiation source in the pipe axis and is assigned to several counting tubes distributed around the circumference of the tube. Through this significantly better averaging is achieved. Depending on the number of counting tubes the averaging can be made almost as precise as desired. In addition, one is from Pipe diameter largely independent. With the same radiation intensity and below The attenuation of the beam by the pipe wall can be neglected in the case of the invention Measuring device at least twice the pipe diameter, deh. 4 times the pipe cross-section, monitor.
PatentansPrtche: S Eernphysikalische Meßeinrichtung zur Dichtemessung von Mehrphasengemischen in einem Rohr mit einer Strahlungsquelle und einem Zählrohr zur Bestimmung einer durch das Rohr verlaufenden Strahlung, dadurch gekennzeichnet, daß die Strahlungsquelle (6) in der Rohrachse liegt und mehreren, am Umfang des Rohres (1) verteilten Zahlrohren (16,17) zugeordnet ist. Patent claim: S Nemphysical measuring device for density measurement of multiphase mixtures in a tube with a radiation source and a counter tube for determining radiation passing through the pipe, characterized in that that the radiation source (6) lies in the tube axis and several, on the circumference of the Tube (1) distributed number tubes (16,17) is assigned.
2. Kernphysikalische Meßeinrichtung nach Anspruch 1, gekennzeichnet durch eine verfahrbar angeordnete Strahlungsquelle (6). 2. Nuclear physics measuring device according to claim 1, characterized by a movable radiation source (6).
3. gernphysikalische Meßeinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Strahlungsquelle (6) an einem Rohrkrürnrner (3) angeordnet und auf einer Tangente zur Rohrachse in das Rohr bewegbar ist. 3. Gemphysical measuring device according to claim 2, characterized in that that the radiation source (6) is arranged on a Rohrkrürnrner (3) and on one Tangent to the pipe axis can be moved into the pipe.
4. Eernphysikalische Meßeinrichtung nach Anspruch 1, 2 oder 3, gekennzeichnet durch eine das Rohr (1) im Bereich der Zähirohre (16,17) umgebende Abschirmung (18). 4. Eernphysical measuring device according to claim 1, 2 or 3, characterized by a shield (18) surrounding the tube (1) in the area of the metering tubes (16, 17).
-5. Xernphysikalische Meßeinrichtung nach Anspruch 2, 3 oder 4, dadurch gekennzeichnet, daß eine die Strahlungsquelle (6) unmittelbar umgebende Abschirmung (8) relativ zur Strahlungsquelle (6) verfahrbar ist5 -5. Xernophysical measuring device according to claim 2, 3 or 4, characterized in that a shield (8) immediately surrounding the radiation source (6) can be moved relative to the radiation source (6 )5
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2162370A DE2162370A1 (en) | 1971-12-16 | 1971-12-16 | NUCLEAR PHYSICAL MEASURING DEVICE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2162370A DE2162370A1 (en) | 1971-12-16 | 1971-12-16 | NUCLEAR PHYSICAL MEASURING DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2162370A1 true DE2162370A1 (en) | 1973-06-20 |
Family
ID=5828135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2162370A Pending DE2162370A1 (en) | 1971-12-16 | 1971-12-16 | NUCLEAR PHYSICAL MEASURING DEVICE |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2162370A1 (en) |
-
1971
- 1971-12-16 DE DE2162370A patent/DE2162370A1/en active Pending
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