Simple instrument with a modern Windows software

• Connection to PC via USB 2.0
• No power supply needed

Drop and bubble profile analysis belongs to the most modern methods  to measure the contact angle or surface / interfacial tension of liquids.
Principle is based on the analysis of the shape of pendent and sessile drops or buoyant and captive bubbles.
Manual operation allows even simple dilational elasticity experiments.

Instrumental parts

• very compact construction
• manual dosing system
• temperature controlled measuring cell
• CCD-camera with fixed objective
• data transfer between camera and PC via USB2.0
• no frame grabber needed

Features of the instrument

• surface and interfacial tension of liquids
• both drop and bubble analysis automatic calibration routines
• transient relaxation studies to measure the dilational elasticity
• use with any PC or laptop (no frame grabber needed)
• no extra power supply necessary

This instrument is the low-cost version of our high-end automatic profile analysis tensiometer PAT-1

Technical Data:

• Range of surface and interfacial tension: 1…1,000 mN/m; resolution: ±0.1 mN/m
• Optics:
  Fix objective C-mount
  CCD-Camera
  max. resolution of 640 x 480 pixels
  Optical distortion <0.1%
• Data Transfer: via USB 2.0 port, max. 20MB/second, 30 frames/ second
• Measuring Options:
  Pendent Drop,Buoyant Bubble: surface/interfacial tension
  Transient drop/Bubble changes: estimate values of surface elasticity
• Temperature: 10 - 80 C
• Size of device: 300 x 70 x 200 mm
• Weight: 1.0 kg
• Power supply: via USB 2.0 high speed
• Extra accessories: various capillaries