Dynamic response of a shear stress transducer in the sliding plate rheometer

被引：7

作者：

Kolitawong, C

Giacomin, AJ

机构：

[1] Univ Wisconsin, Dept Mech Engn, Madison, WI 53706 USA

[2] Univ Wisconsin, Rheol Res Ctr, Madison, WI 53706 USA

[3] Natl Univ Singapore, Dept Chem & Environm Engn, Singapore 119260, Singapore

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 2002年 / 102卷 / 01期

关键词：

sliding plate rheometer; transducer damping; shear stress transducer; bipolar cylindrical coordinates; dynamic transducer calibration;

D O I：

10.1016/S0377-0257(01)00139-2

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The damping caused by polymer melt, which commonly gets into the housing of a shear stress transducer, is determined analytically. The analysis employs bipolar coordinates and is applied to Newtonian and then linear viscoelastic fluids, Results are compared with available dynamic calibration measurements, and also with previously used semi-empirical models for the transducer damping. Dimensionless graphs are then provided for estimating transducer attenuation and phase error in oscillatory shear measurements. Examples are given showing how to use the results for rheometer design and to assess measurement accuracy. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：71 / 96

页数：26

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