STUDY OF ELECTRO-PNEUMATIC INTERFACE BASED ON ACOUSTIC LAMINAR TO TURBULENT TRANSITION
Guido Belforte, Gabriella Eula, Carlo Ferraresi, A. Manuello Bertetto, Vladimir Viktorov · Proceedings of the JFPS International Symposium on Fluid Power · 1999
Thanks to the development of piezoelectric materials able to realize high efficiency vibration generators, it is now possible to develop interface devices between low power electric signals and pneumatic signals, based on the phenomenon of laminar to turbulent transition of air jets. Aim of this work is the study of such kind of devices, particularly oriented to the use of electro-acoustic signals. The paper describes a study carried out on a particular experimental device which allowed to identify the influence of various geometric parameters on the transition effect. A campaign of tests has been completed aimed to a dimensional optimisation of the device. The possible utilisation of the device as interface element for control of pneumatic valves has been considered.