Before revision: The force on the plate due to wetting is measured using a tensiometer or microbalance and used to calculate the surface tension () using the Wilhelmy equation: where is the wetted perimeter () ; is the plate width and is the plate thickness) of the Wilhelmy plate and is the contact angle between the liquid phase and the plate.
After revision: The force on the plate due to wetting is measured using a tensiometer or microbalance and used to calculate the surface tension () using the Wilhelmy equation: where is the wetted perimeter () , is the plate width , is the plate thickness) of the Wilhelmy plate and is the contact angle between the liquid phase and the plate.