TRACKER™ Automatic Drop Tensiometer
for Surface Tension & Interfacial Rheology Study
Tensiometers are used in research, development and quality control to study the properties of interfaces between immiscible fluids. Our range of automatic drop tensiometers TRACKER™ helps you characterize, easily and precisely surfaces & interfaces properties. Measurements provide valuable data, saving time and money in formulating products.
Powerful Image Analysis Software
TRACKER™ software uses algorithms to analyze the drop's profile and to fit it with models based on the Young-Laplace equation in order to determine surface tension, interfacial tension or contact angle.


Full range of measurements
TRACKER™ determines the dynamic interfacial tension between two immiscible fluids by performing a numerical analysis of the shape of a pendant or rising drop or bubble.
Characteristics measured
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Surface tension (liquid/gas)
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Interfacial tension (liquid/liquid)
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Contact angle (liquid/solid)
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Dynamic contact angle
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Interfacial Dilatational Rheology
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Viscoelastic modulus
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Coefficient of rigidity
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Automatic CMC
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Temperature & Pressure
Smart Modular Design
TRACKER™ is adaptable and allows you to choose one or more modules that fit better to your applications

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Phase exchange
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Piezoelectric cell for higher frequency oscillation
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Pressure sensor to measure Laplace pressure in the bubble
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Automatic CMC
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Pressure Cell 200°C/200bar
For Lots of Applications...
Crude oil: emulsion stability for separation,influence of surfactants for EOR, dynamic contact angle between oil/rock/liquid phases.
Cosmetics: emulsion stability, formulation, dynamic contact angle between container/emulsion.
Food: stability of emulsion before getting frozen (ice cream), influence of proteins, sugar or alcohol impact on the bubbles' size.
Bitumen: wettability, emulsion properties at different temperatures, dynamic contact angle.
Fuel formulation: characterization of the coalescence of an emulsion, wettability.
Lubricant: contact angle between lubricant/material, influence of surfactants on the wettability

Tracker™ Automatic Drop Tensiometer modules
Measurements overview

Options
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Automatic Critical Micelle Concentration (CMC)
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High frequency (10Hz)
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Dense Phase exchange
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Drop Phase exchange
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Bubble pressure
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Pressure cell up to 200 bar / 200°C
Applications
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Surfactant characterization
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Efficiency/Effectiveness of the surfactants
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Kinetics / Capacity to adsorb/absorb
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Capacity to decrease the surface tension
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Quantity of surfactant to saturate the surface
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Surfactant behavior on the surface
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Wettability of the surface
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Properties of biological surfactants (protein, lipids ...)
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Competition of surfactants