The Torsional Quartz-Crystal Viscometer

Abstract A complete theoretical analysis of the fluid and solid dynamics torsional quartz crystal viscometer is presented which for first time, establishes a firm basis two working equations whereby viscosity may be determined from measurements resonant frequency width resonance when immersed in fluid. Modern instrumentation means that it possible to achieve higher resolution measurement these quantities than hitherto new theory opens way securing concomitant accuracy determination viscosity.