Drop Shape Analysis System DSA100E

Drop Shape Analysis System DSA100E
Drop Shape Analysis System DSA100E

Drop Shape Analysis System for fully-automatic determination of contact angle and surface free energy

With the DSA100E the user has a fully automatic contact angle measuring system for determining the surface free energies of solids and the surface and interfacial tensions of liquids. Complete software control of the most important instrument functions makes fully automated measuring sequences possible.

Configuration of the DSA100E

Dosing

Software controlled dosing system for 4 liquids

Camera

Standard camera
61 fps (780×580 px) respectively
311 fps (780×60 px)

Optics

Manual zoom / focus

Illumination

Software controlled illumination

Axis

Software controlled z-axis
Two software controlled x/y-axis with 100 mm movement range

Stage

Standard stage

Software

Software to determine static and dynamic contact angles
Software to determine surface free energy of solids
Software to determine surface and interfacial tension of liquids

Technical Data of the DSA100E

Max. sample size (WxDxH)

300 x ∞ x 150 mm
(500 x ∞ x 150 mm for the long frame version)

Dimension of sample (LxW)

105 x 105 mm (Ø 300 mm)
(500 x 500 mm for the long frame version)

Range of
contact angle measurements *

  • 0 to 180°
  • 0.1° resolution

Range of
surface tension measurements

  • 1x10-2 to 1000mN/m
  • 0.01mN/m resolution

Optics

  • 7-fold zoom
  • FOV 4 -28,13 mm diagonal
  • Stray light compensation  
  • Integrated focus module 
  • High-performance-vario-field ilumination
  • Viewing angle alignment without shift of image
  • Patented construction of the optics

Video systems

  • 61 fps (780×580 px), 311 fps (780×60 px)
  • 2200 fps optional 
  • Online max. 100 evaluations / second
  • Video sequences (duration depending on RAM)
  • Automatic software trigger for evaluation / recording

Software 

5 different methods of drop shape analysis for Sessile Drop, automatic baseline for contact angle between 0 to 180°, option for curved baseline, Pendant Drop Method, video sequence, procedure definition, autodrop delivery, calculation of surface free energy according to Fowkes, extended Fowkes, Wu, Zisman, Owens-Wendt-Rabel, van Oss & Good, Neumann, calculation of Wetting envelopes, etc…

Temperature range

-60 to 400°C

Dimensions (WxDxH)

620 × 380 × 610mm (954 x 380 x 610 for the long frame version)

Weight

25 to 45 kg

Power supply

110 to 240 VAC

Interfaces

Optional connection to USB port of PC via adapter

* Referring to image analysis