Drop Volume Analyzer DVA-1

Classical method to measure the surface and interfacial tension of liquids

Principle is based on the accurate determination of the volume of drops detaching from circular capillaries.
Fast drop formation allows short time measurements.
Instrument parts
1. Automatic dosing system –  automatic refilling
2. Temperature controlled measuring cell
3. Data acquisition via RS-232
4. Automatic cleaning procedure

Features of the instrument

• very compact construction
• surface and interfacial tension of liquids
• dynamic interfacial tensions in a time range of less than one second up to several minutes
• complements the profile analysis tensiometry at short times, in particular for liquid/ liquid interfaces
• use with any PC or laptop
• no time-consuming filling procedure as it refills automatically from a reservoir
• correction of the viscosity effects at short drop times
• small size, cheaper price, and easy to handle

Features of the instrument surface and interfacial tension of liquids dynamic interfacial tensions in a time range of less than one second up to several minutes complements the profile analysis tensiometry at short times, in particular for liquid/ liquid interfaces use with any PC or laptop no time-consuming filling procedure as it refills automatically from a reservoir temperature controlled cell small size, cheaper price, and easy to handle correction of the viscosity effects at short drop times

Fields of Application 
Surfactant science, pharmacy, ink jet printing, cosmetics, coating technology, food technology, foam and emulsion technology, medicine and biology, detergency, ecology.