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Updated: Feb 25, 2026

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces
Published on: September 9, 2022
Note: A portable automatic capillary viscometer for transparent and opaque liquids
A Soltani Ghalehjooghi1, S Minaei2, N Gholipour Zanjani3
1Department of Agricultural Machinery, Science and Research Branch, Islamic Azad University, 1475756689 Tehran, Iran.
Abstract:
A portable automatic capillary viscometer, equipped with an AVR microcontroller, was designed and developed. The viscometer was calibrated with Certified Reference Material (CRM) s200 and utilized for measurement of kinematic viscosity. A quadratic equation was developed for calibration of the instrument at various temperatures. Also, a model was developed for viscosity determination in terms of the viscometer dimensions. Development of the portable viscometer provides for on-site monitoring of engine oil viscosity.
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