Note: A portable automatic capillary viscometer for transparent and opaque liquids

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.