In the present paper a piezoelectric actuator realized for interferometric applications is described, together with a numerical model to simulate its hysteretic behaviour. The actuator is an open-loop device made up of three PZT ceramics glued into a stainless steel case and connected directly to the parallel port of a personal computer by an OEM control electronics. It consists of a 16 bit D/A converter whose voltage is fixed by the parallel port, a charge amplifier which provides the voltage to the PZT ceramics and a current divider for the control of the voltage on each channel. The layout based on three active elements has allowed to obtain a device which is able to perform a straight expansion with a negligible tilting, a desirable feature for an actuator used for interferometric applications. The hysteretic behavior of the actuator was simulated by a numerical model, based on the Prandtl-Ishlinskii hysteresis operator, which shows a high capability to predict the input-output response at any level of the input signal, and it is efficient enough for use in real-time applications.

Hysteresis Compensation of an Open-Loop Piezoelectric Actuator for Interferometric Applications

BRUNO, LUIGI;MALETTA, Carmine
2006-01-01

Abstract

In the present paper a piezoelectric actuator realized for interferometric applications is described, together with a numerical model to simulate its hysteretic behaviour. The actuator is an open-loop device made up of three PZT ceramics glued into a stainless steel case and connected directly to the parallel port of a personal computer by an OEM control electronics. It consists of a 16 bit D/A converter whose voltage is fixed by the parallel port, a charge amplifier which provides the voltage to the PZT ceramics and a current divider for the control of the voltage on each channel. The layout based on three active elements has allowed to obtain a device which is able to perform a straight expansion with a negligible tilting, a desirable feature for an actuator used for interferometric applications. The hysteretic behavior of the actuator was simulated by a numerical model, based on the Prandtl-Ishlinskii hysteresis operator, which shows a high capability to predict the input-output response at any level of the input signal, and it is efficient enough for use in real-time applications.
2006
9728826109
9728826117
Hysteresis
Piezoelectric actuator
Prandtl-Ishlinskii
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/171715
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