| 摘要 |
A rheometer apparatus includes an acoustic wave viscosity sensor associated with a flexural plate wave device configured to include a central cavity through which a fluid flows. A plurality of interdigital transducers cam be associated with the flexural plate wave device, wherein each interdigital transducer (IDT) thereof can measure viscosity associated with the fluid over a variable range of shear rates. The variable range of shear rates can be achieved by varying the flow rate of the fluid due to an adjustment of a vibrating amplitude associated with the flexural plate wave (FPW) device (e.g., an FPW pump).
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