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Related Experiment Video

Updated: Feb 25, 2026

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

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.

The Review of Scientific Instruments

|August 3, 2017

Summary

This summary is machine-generated.

A new portable automatic capillary viscometer was developed for on-site engine oil viscosity monitoring. This device offers accurate kinematic viscosity measurements using a calibrated instrument and a predictive model.

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Area of Science:

Engineering
Materials Science
Analytical Chemistry

Background:

Accurate viscosity measurement is crucial for engine performance and maintenance.
Existing methods for viscosity testing can be time-consuming and require laboratory settings.
On-site monitoring of engine oil viscosity is needed for real-time assessment.

Purpose of the Study:

To design and develop a portable automatic capillary viscometer.
To enable on-site monitoring of engine oil kinematic viscosity.
To create calibration and viscosity determination models for the instrument.

Main Methods:

The viscometer was designed and built using an AVR microcontroller.
Calibration was performed using Certified Reference Material (CRM) s200.
A quadratic equation was developed for temperature-dependent calibration.
A model was established relating viscosity to viscometer dimensions.

Main Results:

A functional portable automatic capillary viscometer was successfully developed.
The instrument demonstrated capability for kinematic viscosity measurement.
Calibration and viscosity prediction models were established.
The device facilitates on-site engine oil viscosity analysis.

Conclusions:

The developed portable viscometer enables efficient on-site kinematic viscosity measurements.
The instrument and its associated models provide a practical solution for engine oil monitoring.
This technology supports proactive engine maintenance through real-time viscosity data.