A Simple And Low Cost 3-Probe Measurement Technique Using Microstrip Circuits

1988 ◽  
Author(s):  
Kai Chang ◽  
Ming-Yi Li ◽  
Thomas Sauter
Keyword(s):  
Measurement Technique ◽  
Low Cost ◽  
Probe Measurement

An Electromechanical In Situ Viscosity Measurement Technique for Shear Thickening Fluids

2021 ◽  
Vol 43 ◽  
pp. 33-43
Author(s):  
Gökhan Haydarlar ◽  
Mehmet Alper Sofuoğlu ◽  
Selim Gürgen ◽  
Melih Cemal Kushan ◽  
Mesut Tekkalmaz
Keyword(s):  
Measurement Technique ◽  
Low Cost ◽  
Spectral Response ◽  
Shear Thickening ◽  
Viscosity Measurement ◽  
Rheological Parameters ◽  
Shear Thickening Fluid ◽  
Electromechanical Impedance ◽  
Shear Thickening Fluids

This paper presents the feasibility of developing an electromechanical in-situ viscosity measurement technique by analyzing the detectability of small variations in the viscosity of different shear thickening fluids and their different compositions. Shear thickening fluid (STF) is a kind of non-Newtonian fluid showing an increasing viscosity profile under loading. STF is utilized in several applications to take advantage of its tunable rheology. However, process control in different STF applications requires rheological measurements, which cause a costly investment and long-lasting labor. Therefore, one of the most commonly used in-situ structural health monitoring techniques, electromechanical impedance (EMI), was used in this study. In order to actuate the medium electromechanically, a piezoelectric wafer active sensor (PWAS) was used. The variations in the spectral response of PWAS resonator that can be submerged into shear thickening fluid are analyzed by the root mean square deviation, mean absolute percentage deviation and correlation coefficient deviation. According to the results, EMI metrics provide good correlations with the rheological parameters of STF and thereby enabling quick and low-cost rheological control for STF applications such as vibration dampers or stiffness control systems.

A simple, low-cost flow rate measurement technique for bench-scale RO fouling experiments

Desalination ◽  
2012 ◽  
Vol 284 ◽  
pp. 228-232
Author(s):  
Fraser C. Kent ◽  
Marc Graziani ◽  
Khosrow Farahbakhsh ◽  
Graham A. Gagnon
Keyword(s):  
Flow Rate ◽  
Measurement Technique ◽  
Low Cost ◽  
Rate Measurement ◽  
Flow Rate Measurement ◽  
Bench Scale ◽  
Cost Flow
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