DD224111A1 - METHOD FOR DETERMINING THE SOUND SPEED BY MEANS OF RELATIVE MEASURING METHODS - Google Patents
METHOD FOR DETERMINING THE SOUND SPEED BY MEANS OF RELATIVE MEASURING METHODS Download PDFInfo
- Publication number
- DD224111A1 DD224111A1 DD26300184A DD26300184A DD224111A1 DD 224111 A1 DD224111 A1 DD 224111A1 DD 26300184 A DD26300184 A DD 26300184A DD 26300184 A DD26300184 A DD 26300184A DD 224111 A1 DD224111 A1 DD 224111A1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- sound
- temperature
- speed
- solutions
- calibration
- Prior art date
Links
Abstract
Die Erfindung betrifft ein Verfahren zur Bestimmung der Schallgeschwindigkeit mittels relativer Messverfahren, das ueberall dort angewandt werden kann, wo die praezise Messung der Schallgeschwindigkeit, bezogen auf eine Eichsubstanz oder Umgebungsfluessigkeit, erforderlich ist. Der Erfindung liegt die Aufgabe zugrunde, den bei relativen Messverfahren der Schallgeschwindigkeit notwendigen zeitlichen und opperativen Aufwand bei gleichzeitiger Erhoehung der Genauigkeit der Messergebnisse zu verringern. Das erfindungsgemaesse Verfahren ist gekennzeichnet dadurch, dass als Eich- oder Umgebungsfluessigkeiten nicht reine Fluessigkeiten, sondern Loesungen mit bei bestimmten Konzentrationen temperaturunabhaengigen oder nur schwach temperaturabhaengigen Schallgeschwindigkeiten verwendet werden.The invention relates to a method for determining the speed of sound by means of relative measurement methods, which can be used wherever the precise measurement of the speed of sound, based on a calibration substance or ambient fluid, is required. The object of the invention is to reduce the time and operational expenditure required for relative measurement methods of the speed of sound while at the same time increasing the accuracy of the measurement results. The method according to the invention is characterized in that calibrations or ambient liquids used are not solutions which are pure liquids but temperature-independent or only weakly temperature-dependent sound velocities at certain concentrations.
Description
-1- 263 001 3-1- 263 001 3
Y- . . Y- , ,
Claims (2)
Fig. 2: zeigt die Abhängigkeit der Schallgeschwindigkeiten von der Zusammensetzung der Wasser/ Harnstoff-Lösung fürdifferent Teperaturen and
Fig. 2: shows the dependence of the sound velocities on the composition of the water / urea solution for
a - Ultraschallgeschwindigkeitinm/s
x's - Molenbruch der gelösten Komponente
T; - Meßtemperatur(i = 1,...,4)In the pictures mean:
a - ultrasonic velocity inm / s
x ' s - mole fraction of the dissolved component
T; - measuring temperature (i = 1, ..., 4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD26300184A DD224111A1 (en) | 1984-05-14 | 1984-05-14 | METHOD FOR DETERMINING THE SOUND SPEED BY MEANS OF RELATIVE MEASURING METHODS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD26300184A DD224111A1 (en) | 1984-05-14 | 1984-05-14 | METHOD FOR DETERMINING THE SOUND SPEED BY MEANS OF RELATIVE MEASURING METHODS |
Publications (1)
Publication Number | Publication Date |
---|---|
DD224111A1 true DD224111A1 (en) | 1985-06-26 |
Family
ID=5557010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD26300184A DD224111A1 (en) | 1984-05-14 | 1984-05-14 | METHOD FOR DETERMINING THE SOUND SPEED BY MEANS OF RELATIVE MEASURING METHODS |
Country Status (1)
Country | Link |
---|---|
DD (1) | DD224111A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5255559A (en) * | 1991-03-28 | 1993-10-26 | Weatherford/Lamb, Inc. | Apparatus for testing the gas-tightness of a joint between hollow members |
-
1984
- 1984-05-14 DD DD26300184A patent/DD224111A1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5255559A (en) * | 1991-03-28 | 1993-10-26 | Weatherford/Lamb, Inc. | Apparatus for testing the gas-tightness of a joint between hollow members |
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