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Measurement Methods

Explore our tried, tested, and true measuring techniques and discover the ones which are best suited to your applications

Drop Shape

  • Sessile drop
    Contact angle of a drop on a solid surface

  • Sessile drop mapping
    Automated position-dependent contact angle measurement and evaluation

  • Sessile drop top view analysis
    Contact angle of a drop viewed from the top

  • Double sessile drop
    Contact angles of two drops dosed in parallel

  • Captive bubble
    Contact angle using a gas bubble beneath a solid surface in a liquid

  • Roll-off measurement
    Roll-off behavior and advancing/receding contact angle of a drop on a tilted surface

  • Surface free energy
    Surface free energy of a solid using contact angle data

  • Pendant drop
    Surface or interfacial tension using the curvature of a drop or bubble at the tip of a needle

  • Constrained sessile drop
    Surface tension using the curvature of a perfectly symmetrical drop on a circular sample pedestal

  • Oscillating pendant drop
    Interfacial rheological behavior of a pendant drop or a bubble with periodically alternating volume

  • Cycle
    Carrying out a measurement up to 20 consecutive times and displaying the results together

  • Adhesion analysis
    Calculating adhesion-related scientific parameters for the interfacial contact

  • Liquid polarity
    Calculating the polar and disperse part of the surface tension from contact angle and surface tension data

  • ADVANCE API
    Remote control of ADVANCE for integration in custom-designed, complex automations

  • 3D Contact Angle
    Evaluation of an exact virtual replica of a dosed drop reconstructed on the basis of reflection patterns

  • Meniscus
    Contact angle at an immersed, cylindrical sample, usually a fiber

Tensiometers

  • Bubble pressure
    Dynamic surface tension using the Laplace pressure of a gas bubble at a capillary in a liquid

  • Sorption
    Contact angle between a liquid and porous material using the capillary force

  • Liquid density
    Density determination of a liquid using the buoyancy of a probe immersed in the sample

  • Solid density
    Density determination of a solid using the buoyancy of the sample immersed in a liquid

  • Sedimentation
    Sedimentation speed of a dispersion

  • Penetration
    Penetration resistance of a sediment against a probe

  • Wilhelmy contact angle
    Contact angle using the wetting force of a liquid at a solid sample

  • Spinning drop IFT
    Interfacial tension using the diameter or curvature of a drop of a light phase inside a heavy phase in a rotating capillary

  • CMC
    Automated determination of the critical micelle concentration by measuring the SFT at different concentrations

  • Ring IFT
    Interfacial tension using the tensile force of a lamella underneath a ring

  • Ring SFT
    Surface tension using the tensile force of a lamella underneath a ring

  • Lamella tear-off IFT
    Interfacial tension using the tensile force of a lamella which is stretched until it disrupts

  • Lamella tear-off SFT
    Surface tension using the tensile force of a lamella which is stretched until it disrupts

  • Wilhelmy IFT
    Interfacial tension using the wetting force of a liquid at a platinum plate or rod

  • Wilhelmy SFT
    Surface tension using the wetting force of a liquid at a platinum plate or rod

  • Surface free energy
    Surface free energy of a solid using contact angle data

  • Adhesion analysis
    Calculating adhesion-related scientific parameters for the interfacial contact

  • Liquid polarity
    Calculating the polar and disperse part of the surface tension from contact angle and surface tension data

  • Special purpose
    Using a force sensor, a software-controlled sample stage, and a camera (if available) for freely defined procedures

  • Cycle
    Carrying out a measurement up to 20 consecutive times and displaying the results together

  • ASTM D 971
    Ageing check of transformer oils and other liquids using interfacial tension according to ASTM D 971

  • IEC 62961
    Ageing check of transformer oils and other liquids using interfacial tension according to IEC 62961

  • Drop pull-off
    Force and image evaluation for measuring adhesion of a drop brought into contact with a surface and removed again (part the "Special purpose" method)

Foam Analysis

  • Foam height
    Foamability and foam stability using the optically detected height of foam created reproducibly

  • Foam structure
    Optically detected foam bubble sizes and their statistical distribution

  • Foam flash
    Foam formation behavior of heavily foaming liquids using stirring cycles

  • Liquid content
    Moisture and drainage behavior of foam using its electrical conductivity

  • High pressure foam
    Foam height and foam structure simultaneously analyzed under high pressure

  • Ross Miles
    Foamability and foam stability according to ASTM D 1173

  • Cycle
    Carrying out a measurement up to 20 consecutive times and displaying the results together

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