Overcoming hysteresis in multilayered piezoceramic actuators used in adaptive optics

Emma Bryce; Erman Uzgur; David Hutson; Katherine Kirk; Mel Strachan; Noah Schwartz; Phil Parr-Burman

doi:10.1117/12.917561

28 March 2012 Overcoming hysteresis in multilayered piezoceramic actuators used in adaptive optics

Emma Bryce, Erman Uzgur, David Hutson, Katherine Kirk, Mel Strachan, Noah Schwartz, Phil Parr-Burman

Proceedings Volume 8342, Behavior and Mechanics of Multifunctional Materials and Composites 2012; 83420O (2012) https://doi.org/10.1117/12.917561
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

Piezoceramic actuators are of increasing interest within the field of adaptive optics through their ability for macro and nano positioning. However, a major drawback for their use is the inherent, non linear hysteresis that is present, which will reduce the accuracy in positioning. Typical (raw) hysteresis for multilayered piezoceramic actuators is 20% of full extension. Methods have been researched to overcome the hysteresis but they often involve complex additions to the actuators and its positioning system. This paper discusses two methods to overcome the hysteresis in a simpler approach. The first method is using capacitance measurements which correlate with the extension of the actuators and reduces hysteresis to 5%. The second method involves measuring the frequency at a specific impedance phase, which can reduce hysteresis to between 0 - 2%. Both methods provide reduction in hysteresis during extension sensing.

Citation Download Citation

Emma Bryce, Erman Uzgur, David Hutson, Katherine Kirk, Mel Strachan, Noah Schwartz, and Phil Parr-Burman "Overcoming hysteresis in multilayered piezoceramic actuators used in adaptive optics", Proc. SPIE 8342, Behavior and Mechanics of Multifunctional Materials and Composites 2012, 83420O (28 March 2012); https://doi.org/10.1117/12.917561

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