Novel Instrument for Parallel Superposition Measurements.

Autor: Dinser, S., Dual, J., Haeusler, K.
Předmět:
Zdroj: AIP Conference Proceedings; 7/7/2008, Vol. 1027 Issue 1, p1186-1188, 3p, 1 Diagram, 1 Chart
Abstrakt: A set up consisting of a rotational rheometer and a mechanical oscillator is presented which is able to perform rheological measurements by parallel superposition measurements of a macroscopic shear rate and a very small oscillation. The basic model equations are shown and first measurements with Newtonian fluids are presented. The oscillation makes use of small amplitudes (<100 nm) which allows a practically interference-free measurement. This set up makes it possible to measure the viscosity from zero constant shear rate to the usually used constant shear rates. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index