scholarly journals Density measurements of viscoelastic samples with oscillation-type density meters

2019 ◽  
Vol 1379 ◽  
pp. 012020
Author(s):  
A Furtado ◽  
J Gavina ◽  
A Napoleão ◽  
J Pereira ◽  
M T Cidade ◽  
...  
Keyword(s):  
Density Measurements ◽  
Oscillation Type

scholarly journals First density comparison on viscoelastic samples by oscillation-type densimetry

ACTA IMEKO ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 79
Author(s):  
A. Furtado ◽  
J. Pereira ◽  
R. Quendera ◽  
M. Schiebl ◽  
E. Lenard ◽  
...  
Keyword(s):  
International Comparison ◽  
Density Measurement ◽  
Measurement Methods ◽  
Newtonian Fluids ◽  
Density Measurements ◽  
Oscillation Type ◽  
Hydrostatic Weighing ◽  
Damping Effects

To provide a deeper insight about the damping effects produced by the viscoelasticity of non- Newtonian fluids during density measurements with oscillation-type density meters, and about how reference laboratories overcome these effects, an international comparison was performed, within the scope of the EMPIR Project 17RPT02 rhoLiq. The results of the comparison evidenced the possibility to measure density of viscoelastic samples by means of oscillation-type density meters with an uncertainty between 0.10 kg·m<sup>-3</sup> and 0.25 kg·m<sup>-3</sup>. However, these instruments may be able to reach lower uncertainties if compared with higher precision density measurement methods such as hydrostatic weighing.

scholarly journals Robustness studies of oscillation-type density meters with viscoelastic fluids

2019 ◽  
Author(s):  
Andreia Furtado ◽  
Jorge Pereira ◽  
Raquel Quendera ◽  
Maria Teresa Cidade
Keyword(s):  
Viscoelastic Fluids ◽  
Viscoelastic Behaviour ◽  
Density Measurements ◽  
Oscillation Type ◽  
Damping Effects ◽  
Newtonian Liquids ◽  
Oscillation Frequencies ◽  
Viscoelastic Liquids ◽  
Insight Into ◽  
Do So

The oscillation frequencies produced by oscillation-type density meters during the density measurements suffer damping due to the viscosity of Newtonian liquids. The effect of viscoelastic behaviour of non-Newtonian liquids in the damping of these oscillations is still not known. So, 7 viscoelastic liquids were rheologically characterized, resorting to a rheometer, and their density measured in order to provide a deeper insight into the damping effects produced by these types of fluids. To do so, oscillatory data was related with the obtained density deviations. The results of this study will give further insights for the knowledge of the measuring behaviour of these density meters when measuring viscoelastic fluids, one of the scopes of the EMPIR Project 17RPT02-rhoLiq.

Theoretical research of electron-density measurements of plane targets using soft XRL deflectometry

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-479-Pr2-481
Author(s):  
C. Ye ◽  
G. Zhang ◽  
T. Zhang ◽  
H. Peng ◽  
W. Zheng
Keyword(s):  
Electron Density ◽  
Theoretical Research ◽  
Density Measurements

Quantitative density measurements by Rayleigh scattering behind a plane turbine cascade

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 1303-1308 ◽  
Author(s):  
K. Fiedler ◽  
O. Seiber ◽  
C. Jakiel
Keyword(s):  
Rayleigh Scattering ◽  
Turbine Cascade ◽  
Density Measurements

Pressure, temperature, and density measurements using high-resolution N2 CARS

1998 ◽  
Author(s):  
M. Woodmansee ◽  
J. Kuehner ◽  
R. Lucht ◽  
J. Dutton
Keyword(s):  
High Resolution ◽  
Density Measurements

Velocity, Temperature and Density Measurements in Supersonic Jets

2021 ◽  
Author(s):  
Mark P. Wernet ◽  
Nicholas J. Georgiadis ◽  
Randy J. Locke
Keyword(s):  
Supersonic Jets ◽  
Density Measurements

A thermoelectric device for ophthalmic heat flux density measurements: results of piloting in healthy individuals

2019 ◽  
Vol 80 (3) ◽  
pp. 45-51
Author(s):  
L. Anatychuk ◽  
N. Pasyechnikova ◽  
V. Naumenko ◽  
O. Zadorozhnyy ◽  
R. Kobylianskyi ◽  
...  
Keyword(s):  
Heat Flux ◽  
Flux Density ◽  
Heat Flux Density ◽  
Thermoelectric Device ◽  
Healthy Individuals ◽  
Density Measurements
Sign in / Sign up

Export Citation Format

Share Document