NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Modeling and Disturbance Rejection Control of a Nanopositioner with Application to Beam Steering
Published
Author(s)
Jason J. Gorman, Nicholas Dagalakis
Abstract
This paper discusses the modeling and control of a nanopositioning flexure hinge mechanism with a piezoelectric actuator. A complete dynamic model for the mechanism is presented along with experimentally determined system parameters. The control design concentrates on the problem of controlling the nanopositioner when base excitations are injected into the system. The effects of the base excitation are overcome using two approaches. A robust tracking controller is developed which cancels the excitation effect on the tracking error. An inertial compensator is used to update the desired trajectory based on the base motion so that the nanopositioner performs the desired trajectory in an inertial frame. This approach is demonstrated through simulation results. These principals are being developed for use in beam steering applications which require nanoradian resolution and very low beam jitter.
Proceedings Title
Dynamic Systems and Control Division | | 2003 Proceedings of the ASME Dynamic Systems and Control Division, Volume 2 | ASME
base excitation, beam jitter, beam steering, disturbance rejection, nanopositioning
Citation
Gorman, J.
and Dagalakis, N.
(2003),
Modeling and Disturbance Rejection Control of a Nanopositioner with Application to Beam Steering, Dynamic Systems and Control Division | | 2003 Proceedings of the ASME Dynamic Systems and Control Division, Volume 2 | ASME, Undefined, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=823470
(Accessed October 12, 2025)