A method and device for the quality monitoring of technical one-component and more components of liquids by means of ultrasound on - line measurements of their viscosity, density, compressibility and volume viscosity

摘要

Ultrasound pulse method for measuring the viscosity and the density of liquids with the following steps:– Production or reception of oscillations in a solid body, the acoustic properties are known or previously been measured and its geometrical shape is selected so that, the surface area of the surface / surfaces, which is in the acoustic contact with the liquid is / are located, m times greater, than the surface area of the cross section of the ultrasound beam, wherein the wave vector of the vibrations parallel to the surface of the solid body and the received deflection components of the vibrations in the surface plane (tangential) or in the perpendicular to the surface plane (vertical) are located.– Measurement of the speed of the ultrasound in the liquid and the amplitude of the delivery shaft with vertical deflection components.– Computing the ratio of the longitudinal impedance of the liquid / solid body impedance from the measured speed of the ultrasound in the liquid, the amplitude and the previously known and / or measured solid body impedance of the selected oscillator mode falls.– Calculating the..