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172 Erol Murad et al.
When the condition (6) is accomplished, the nozzle starts to rise and there is
an exhaust flow Dmev (t)> 0, which reduces ma(t) and pmas (t) begins to decrease.
Once it finds a stabilizing amount pmas (t), driving algorithm keeps ui = 1 still
400 ms, then ui = 0 and stops the air supply Dmi (t) = 0. In this period Dmev(t)> 0
until h(t) = 0.
Fig. 2 – Measurement scheme starting sequence.
Fig. 3 – Experiment simulation pneumatic transducer Fmas (t) = const.