Acoustic viscometer and method of determining kinematic viscosity and intrinsic viscosity by propagation of shear waves

摘要: An acoustic viscometer and method for determining both the kinematic viscosity intrinsic of a liquid, which includes an wave generator (12), transmitting piezoelectric transducer (18), receiving (24), phase-shift detector (22). The is positioned so as to be in contact with fluid (20) operably connected generator. propagates longitudinal known frequency through liquid (20). spaced apart from detects corresponding shear generated thru liquid. (22) transducers measuring difference phase between two (18, 24), determine velocity wave, viscosities terms density.