Software App Demo
The Dropometer is available in a fully motorized automatic version or a manual version. Watch the demo video to see how it works in more detail.
Methods for this measurement.
Equation of states
Fowkes
Oss and Good
Why these Methods?
The Young-Laplace method applies the Young-Laplace equation to calculate a theoretical drop that fit the profile of the experimental one. Once we have a good approximation, we can use the measurement of the theoretical data to provide a precise result of surface tension.
Surface energy measurement using a smartphone
We use the method explained for Contact Angle to calculate the contact angle of the drop.
That information added to the liquid information provided by the user is applied in the equation proposed by Neumann (Equation of state), Fowkes, or Oss and Good is used to calculate the surface free energy.