piston viscometer

piston viscometer

[′pis·tən vi′skäm·əd·ər]
(engineering)
A device for the measurement of viscosity by the timed fall of a piston through the liquid being tested.
References in periodicals archive ?
[24] ASTM International (2017) ASTM D7483--13a Standard Test Method for Determination of Dynamic Viscosity and Derived Kinematic Viscosity of Liquids by Oscillating Piston Viscometer (ASTM International, West Conshohocken, PA).
Front panel of the custom LabVIEW virtual instrument (VI) developed in this project to automate the oscillating piston viscometer with the associated circulator and syringe pump for isothermal measurements over the entire pressure range.
This paper reports about the viscosity measurements that were carried out with an oscillating piston viscometer (OPV) in the overall temperature range from 275 K to 450 K with pressures up to 137 MPa and in a viscosity range from 1 mPas to 100 mPas.
The measurements were carried out with a commercial oscillating piston viscometer, the ViscoPro 2000 SPL-440, which was purchased from Cambridge Viscosity, Inc., in 2010.
Figure 11 shows that the deviations of the low-pressure viscosities measured in the present study with the oscillating piston viscometer for POE-5 are consistent with those of the data measured by Laesecke and Morrison in 2006 with a different viscometer and a different sample.
They were conducted with an oscillating piston viscometer. This instrument is designed for measurements of compressed liquids; phase equilibrium between saturated liquid and saturated vapor cannot be realized without modifications.