DataPhysics – DCAT – Dynamic Contact Angle Measuring Devices and Tensiometer

The dynamic contact angle measuring devices and tensiometer of the DCAT series are universal measuring devices for the force-based measurement of interfacial parameters and phenomena.

Surface tension acts to contract and minimise any liquid surface. If a surface is being enlarged by the formation of a liquid lamella, as a test body, such as a Wilhelmy plate or Du Noüy ring, is in contact with it, the surface tension exerts a tensile force that can be measured. Within a tensiometer this force is measured by a high precision weighing system and, hence, the surface tension of the liquid can be calculated.

Using a tensiometer, also the interfacial tension between two liquids can be measured with the help of a test body. Since tensiometry is based on force measurements it is – in contrast to the optical analysis of pendant drops – not necessary that one of the liquids is transparent or that the refractive index differs between the two liquids. Therefore, tensiometry is in many cases a handy alternative to the optical measurement of surface and interfacial tensions.

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Overview

Features

Specifications

Key Features

Dynamic Contact Angle Measuring Devices and Tensiometer

  • Electrodynamic compensation weighing system of highest resolution with automatic and manual calibration function
  • Software controlled, motor-driven height positioning of the sample receptacles with variable speed
  • Automatic coupling lock for the balance
  • Automatic crash protection for measuring probes during measurement
  • Closed illuminated sample chamber
  • Digital thermometer with connections for two Pt 100 temperature sensors
  • Includes a TP 50 control panel with touch screen and precision control wheel
  • Compatible with the liquid dosing unit LDU 25
  • Compatible with the Langmuir trough module LTMr

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Dataphysics

DataPhysics Instruments offers a wide range of measuring devices for the analysis of the chemical and physical properties of surfaces…

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      DKSH Korea Ltd.
      3rd Floor, Zen building, 152 Dogok-ro, Gangnam-gu
      06261 Seoul
      Korea

      +82 2 2192 9755

      +82 2 2192 9755

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