Drop volume Analyzer for Dynamic Surface Tension and Interfacial tension of liquids

The DVA-1 Drop Volume Tensiometer is a classical method to measure the surface and interfacial tension of liquid.


The DVA-1 Drop Volume Tensiometer allows measurement of surface and interfacial tension of liquids, dynamic interfacial tensions in a time range of less than 1 second, up to several minutes. The instrument is controlled via a PC or laptop. The filling procedure is automatic from a reservoir and the temperature measuring cell is controlled. The effect of viscosity is corrected for short drop times.

Applications: surfactants, ink jet, coating, foam and emulsion, detergents, pharmaceutical, cosmetics, food, medicine and biology, ecology.

Surface and interfacial tension 1 to 100 mN/m (dyn/cm)
Resolution 0.2 mN/m (dyn/cm)
Time range 0.2 to 1000 seconds
Syringe volume 0.1, 0.25, 0.5, 2.5 mL
Temperature 10 to 80ºC
Dimensions (WxLxH) 20x20x21 cm (8x8x8’’)
Weight 3 kg (6.6 lb.)

Principle is based on the accurate determination of the volume of drops detaching from capillaries.

  • Automatic dosing system
  • Automatic refilling and cleaning
  • Computer controlled, compact design