Abstract
A fast response actuator using the momentum of an air jet for the control of objects with a minimum of mechanical contact utilizes a piezoelectric input stage for ease of interfacing with a digital processor based controller. Theoretical analysis combined with static and dynamic testing has established geometric parameters for an optimized design that utilizes a stacked piezotranslator to vary the jet momentum of a back-pressure device. The device is demonstrated to have good frequency and transient response and is suited to operate in either a pulse width modulated or proportional mode. The device may either be used directly as a single-stage actuator or as the first or pilot stage of a two-stage device.
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