Hysteresis characterization using charge feedback control for a LIPCA device

James Beck; Maciej Noras; Jerzy Kieres; John E. Speich; Karla M. Mossi; Kam K. Leang

doi:10.1117/12.658604

6 April 2006 Hysteresis characterization using charge feedback control for a LIPCA device

James Beck, Maciej Noras, Jerzy Kieres, John E. Speich, Karla M. Mossi, Kam K. Leang

Proceedings Volume 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics; 61701M (2006) https://doi.org/10.1117/12.658604
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

In this paper, we study the no-load behavior of a lightweight piezo-composite curved actuator (LIPCA) subjected to voltage and charge control. First, we examine the effect of hysteresis and creep when the actuator is voltage controlled at a slow scan speed. The experimental results show that creep increases the displacement hysteresis by over 25% when scanning at 1/60 Hz. Afterwards, we discuss the design and implementation of a charge-feedback circuit to control the displacement of the actuator. The hysteresis curves between voltage- and charge-control modes are compared for the scan frequencies of 1 and 5 Hz. The results show that charge control (compared to voltage control) of a LIPCA device exhibits significantly less hysteresis, over 80% less.

Citation Download Citation

James Beck, Maciej Noras, Jerzy Kieres, John E. Speich, Karla M. Mossi, and Kam K. Leang "Hysteresis characterization using charge feedback control for a LIPCA device", Proc. SPIE 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, 61701M (6 April 2006); https://doi.org/10.1117/12.658604

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