Industrial Physics

Dynamic Absorption Tester

Introduction

Contact angle measurement is an empirical tool for understanding the wetting between a liquid and a substrate. The DAT Dynamic Absorption Tester offers a range of integrated instruments, for research as well as quality control. These instruments enable real-time, automatic analysis at full video speed of the interaction between a liquid droplet and a specimen surface. The time-dependent wetting and liquid penetration correlates to many experienced production problems in surface coating, sizing, printing and adhesion.

FEATURES

• Fully automatic, integrated system

• Exchangeable automatic feed systems

• Captures 50 to 1,000 images per second

• Optional Tilt Table

• High precision pump accurate within 0.1 μl

• Precision pulse system for gentle drop application

• Drop application synchronised within 1 msec

• Calibration with ISO certificate

• Full compliance with test methods TAPPI T558 & ASTM D-5725

• Software for Windows XP, Vista and 7 (2 & 64 bit OS)

AVAILABLE OPTIONS

• Automatic and manual feed systems of "special design"

• Sample feed for automatic measurement of "saturation time"

• The DAT Image Sequencer to characterise fast absorbing rates of tissue and synthetic fibre materials

• Optional Tilt Table for analysis of wetting/de-wetting phenomena as advancing/receding contact angles

• True High-Speed systems capturing up to 1000 images per second

• High-quality lens systems