Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 123903 |
| Fachzeitschrift | Review of Scientific Instruments |
| Jahrgang | 77 |
| Ausgabenummer | 12 |
| Frühes Online-Datum | 12 Dez. 2006 |
| Publikationsstatus | Veröffentlicht - Dez. 2006 |
| Extern publiziert | Ja |
Abstract
An instrument for highly accurate measurements of the speed of sound in fluids in the temperature range between 240 and 420 K with pressures up to 100 MPa is described. The measurement principle of the speed of sound sensor is based on a double path length pulse-echo technique. The achieved measurement uncertainties are 3 mK for the temperature, 0.01% for the pressure below 10 MPa and 0.005% for the pressure between 10 and 100 MPa, and 0.014% for the speed of sound. The high accuracy of the instrument is demonstrated by measurements in liquid water and compressed argon. The results for argon prove that our pulse-echo technique agrees with the highly accurate spherical resonator technique, which is commonly employed for speed of sound measurements in gases, in the pressure range where both methods overlap within our measurement uncertainty.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Instrumentierung
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in: Review of Scientific Instruments, Jahrgang 77, Nr. 12, 123903, 12.2006.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Speed of sound instrument for fluids with pressures up to 100 MPa
AU - Meier, Karsten
AU - Kabelac, Stephan
N1 - Funding Information: This work was financially supported by the Deutsche Forschungsgemeinschaft (DFG) under Grant No. Ka 1211/8. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/12
Y1 - 2006/12
N2 - An instrument for highly accurate measurements of the speed of sound in fluids in the temperature range between 240 and 420 K with pressures up to 100 MPa is described. The measurement principle of the speed of sound sensor is based on a double path length pulse-echo technique. The achieved measurement uncertainties are 3 mK for the temperature, 0.01% for the pressure below 10 MPa and 0.005% for the pressure between 10 and 100 MPa, and 0.014% for the speed of sound. The high accuracy of the instrument is demonstrated by measurements in liquid water and compressed argon. The results for argon prove that our pulse-echo technique agrees with the highly accurate spherical resonator technique, which is commonly employed for speed of sound measurements in gases, in the pressure range where both methods overlap within our measurement uncertainty.
AB - An instrument for highly accurate measurements of the speed of sound in fluids in the temperature range between 240 and 420 K with pressures up to 100 MPa is described. The measurement principle of the speed of sound sensor is based on a double path length pulse-echo technique. The achieved measurement uncertainties are 3 mK for the temperature, 0.01% for the pressure below 10 MPa and 0.005% for the pressure between 10 and 100 MPa, and 0.014% for the speed of sound. The high accuracy of the instrument is demonstrated by measurements in liquid water and compressed argon. The results for argon prove that our pulse-echo technique agrees with the highly accurate spherical resonator technique, which is commonly employed for speed of sound measurements in gases, in the pressure range where both methods overlap within our measurement uncertainty.
UR - http://www.scopus.com/inward/record.url?scp=33846095338&partnerID=8YFLogxK
U2 - 10.1063/1.2400019
DO - 10.1063/1.2400019
M3 - Article
AN - SCOPUS:33846095338
VL - 77
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
SN - 0034-6748
IS - 12
M1 - 123903
ER -