Nonlinear electronic control of an electrostrictive actuator

Gregory A. Zvonar; Douglas K. Lindner

doi:10.1117/12.274687

23 May 1997 Nonlinear electronic control of an electrostrictive actuator

Gregory A. Zvonar, Douglas K. Lindner

Proceedings Volume 3044, Smart Structures and Materials 1997: Industrial and Commercial Applications of Smart Structures Technologies; (1997) https://doi.org/10.1117/12.274687
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

In this paper we report on the development of a high frequency switching amplifier for electrostrictive actuators. This amplifier is specifically designed for the capacitive loads that electrostrictive actuator present to them. An integrated nonlinear model of the actuator and the electronics is also developed. It is shown that one source of distortion in the actuator velocity is the nonlinear field to polarization relationship. The amplifier reduces the impact of this nonlinearity by controlling the current entering the actuator instead of the voltage across the actuator. Another major source of the distortion is caused by the quadratic relationship between polarization and strain in the electrostrictive material. The paper develops a new control scheme for the amplifier which significantly improves the linearity of the overall amplifier/actuator combination. Both experimental and simulation results of the Smart Material are reported.

Citation Download Citation

Gregory A. Zvonar and Douglas K. Lindner "Nonlinear electronic control of an electrostrictive actuator", Proc. SPIE 3044, Smart Structures and Materials 1997: Industrial and Commercial Applications of Smart Structures Technologies, (23 May 1997); https://doi.org/10.1117/12.274687

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available