Feed-back is switched off. Monolayer is compressed up to the
necessary value of surface pressure
(Surface pressure-area isotherm is recorded.) Feed-back is
switched on, i.e.
value is maintained starting from this moment. After monolayer
relaxation, the solid substrate is dipped up and down, between
through the monolayer formed at the air-water interface. Film
deposition takes place. Deposition curve, i.e. dependence of
barrier coordinate on the substrate coordinate
x = x (y)
is recorded. Transfer ratio
which shows quality of LB film deposition, can be calculated at
any point of the deposition curve.