Surface Tension Measurement » LAUDA Ring/Plate-Tensiometer TE 3

Software

Convenient measuring and efficient evaluation

The software offers the researcher many advantages in measuring and evaluation. For instance, the accurate determination of "static" surface and interfacial tension values can be implemented with statistical analysis.

The force course of the measurements is displayed online. This enables wetting problems to be identified immediately. Important physico-chemical parameters of surfactants, such as the critical micellar concentration, adsorption isotherms and surface energies (solids/powders/plates or fibers) can be determined as required automatically, semi-automatically or manually.

The 32-bit program is fully compatible with MS Windows (from Version 95) and can also work without problems in the background.

The LAUDA TE 3 is configured to the application case. This saves costs and increases efficiency. One can select from the individual measuring bodies (ring/plate) for surface tension measuring and special sample supports for contact angle measuring.

Depending on the external conditions and the precision required, tempering or double protection using the glass tempering bell cover might be necessary. The same applies to the connection of dosimats to the system. LAUDA can provide the necessary accessories, including its proven LAUDA thermostats.

The scope of delivery

Easy to use, intuitive program with familiar Windows functionalities
Measuring and graphic display of time dependence of surface and interfacial tension with linear or logarithmic time scales
Automatic maximum detection, calculation and correction of the surface and interfacial tensions
Calculation of mean values and standard deviations. Determination of "static" thermodynamic equilibrium surface or interfacial tension
Automatic control of up to two dosimats, integrated aspiration pump and adjustable magnetic stirrer simplify CMC measurements
Concentration dependency can be determined logarithmically or linearly, in standard or reverse mode
Adsorption isotherms can be displayed, the CMC point can be automatically or semi-automatically identified and inserted in tables

Other options

All relevant measuring data such as wetting force, immersion depth, time and temperature are displayed online in their own windows
Contact angle hysteresis can be displayed individually, advancing and receding angles are automatically determined and inserted in tables
Interfacial energies are determined using the Neumann method
Reports, graphics and tables generated by the user can be transferred to other Windows applications
Easy calibration and test functions
Measurement and evaluation of critical micellar concentration
Contact angle measurement and interpretation

Updating older models - compatibility is an obligation

Even users of the predecessor models, LAUDA Tensiometer TE 1 and TE 2, can now take advantage of the new options. The software runs without any modifications on the PC-controlled TE 2. Even the oldest devices of the LAUDA Tensiometer TE 1 can be updated by connecting the measurement desk, together with its force measuring cell and measurement table to the control unit of the TE 2 and therefore also to the PC with just a few modifications. Optionally, for contact angle applications, a digital distance encoder can be installed.