Prędkość propagacji fali ultradźwiękowej w cieczach organicznych w zakresie temperatur od 293,15 k do 318,15 k i pod ciśnieniami do 90 MPa

• Autorzy: Żak A. , Dzida M. , Zorębski M. , Ernst S.

Warianty tytułu

EN

Speed of sound in organic liquid between 293.15 and 318.15 k and under pressures up to 90 MPa

• Języki publikacji: PL

Abstrakty

EN

An ultrasonic apparatus for the measurements of the speed of sound in liquids under high pressures was constructed. The modified pulse-echo-overlap method was applied. A single piezoceramic transducer was used both as transmitter and receiver. The chamber is made of stainless steel. Thermocoax cables were used for the electric signal transmission inside the vessel. The pressure is provided by a hand-operated hydraulic press. The apparatus was tested by measuring the speed of sound in pure organic liquids (ethanol and n - heptane) between 293.15 and 318.15K and at pressures up to 90 MPa. The values of the ultrasound velocity are compared with those reported by other authors. The accuracy of the obtained speed of sound data is estimated to be 0.02% at atmospheric pressure, 0.03% at pressures up to 60 MPa and 0.04% at pressures from 60 to 90 MPa. The agreement between the data obtained and those reported by other authors is satisfactory.

• Wydawca: Silesian Division of Polish Acoustical Society
• Czasopismo: Molecular and Quantum Acoustics
• Rocznik: 1998
• Tom: Vol. 19
• Strony: 301--306
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Żak A.

autor

Dzida M.

autor

Zorębski M.

autor

Ernst S.

• Uniwersytet Śląski, Instytut Chemii, ul. Szkolna 9, 40-006 Katowice