Speed of sound instrument for fluids with pressures up to 100 MPa

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Karsten Meier
  • Stephan Kabelac

Externe Organisationen

  • Helmut-Schmidt-Universität/Universität der Bundeswehr Hamburg
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer123903
FachzeitschriftReview of Scientific Instruments
Jahrgang77
Ausgabenummer12
Frühes Online-Datum12 Dez. 2006
PublikationsstatusVeröffentlicht - Dez. 2006
Extern publiziertJa

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

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Speed of sound instrument for fluids with pressures up to 100 MPa. / Meier, Karsten; Kabelac, Stephan.
in: Review of Scientific Instruments, Jahrgang 77, Nr. 12, 123903, 12.2006.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Meier K, Kabelac S. Speed of sound instrument for fluids with pressures up to 100 MPa. Review of Scientific Instruments. 2006 Dez;77(12):123903. Epub 2006 Dez 12. doi: 10.1063/1.2400019
Meier, Karsten ; Kabelac, Stephan. / Speed of sound instrument for fluids with pressures up to 100 MPa. in: Review of Scientific Instruments. 2006 ; Jahrgang 77, Nr. 12.
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