新型旋转毛细管粘度计测量血液流变特性方法

阐述了新型旋转毛细管粘度计测量血液流变特性的原理和方法．由该粘度计的可测量参数压力梯度和流量，得到了壁面切应力，定义了特征粘度和特征切变率；建立了特征切变率、壁面切应力与血液本构方程的关系，并通过线性回归得到本构方程特征参数；用该粘度计对水和人体血液的测量数据进行验证．结果表明，该粘度计可以用于测量血液的流变特性．

Measurement of hemo-rheological properties with novel rotational capillary viscometer

The principle and method of measuring hemo-rheological properties by means of a novel rotational capillary viseometer is expounded. On the basis of the measurable parameters with the viscometer such as the pressure gradient and the mass flow of the blood, the shear stress on the tube wall was obtained,characteristic viscosity and shear rate was defined, and the relationship of the shear stress on the tube wall and characteristic shear rate to Casson equation was established. The parameters of Casson equation were obtained by means of linear regression. Test on distilled water and blood was performed with this viscometer to verify the measured data. The result of test shows that hemo-rheological properties can be measured with this novel rotational capillary viscometer.