Measurement Methods

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

Stood-up Drop
Measuring the recently receded contact angle to characterize dewetting behavior

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 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