A method for measuring small rotational velocities for a couette-type viscometer

1 August 1980

journal article
research article
Published by AIP Publishing in Review of Scientific Instruments

Vol. 51 (8) , 1136-1137
https://doi.org/10.1063/1.1136361

Abstract

A parallel plate capacitor assembly is used to measure the angular rotation in viscosity measurements using a Couette‐type viscometer. This measurement coupled with a time base permits extremely small angle velocities to be measured thus permitting large viscosities (ca. 10¹¹ Pa s) to be determined. Sample data on supercooled isoamyl bromide at low temperatures obtained by this method are presented.

Keywords

MEASURING INSTRUMENTS
VISCOSITY
ROTATION
CAPACITORS
ANGULAR VELOCITY
DATA
TIME DEPENDENCE
ORGANIC HALOGEN COMPOUNDS

This publication has 2 references indexed in Scilit:

Modification of a commercial admittance bridge to measure large conductances
Review of Scientific Instruments, 1977
Viscosities of Some Undercooled Liquid Alkyl Halides
The Journal of Chemical Physics, 1959