Tracking control of a multilayer piezoelectric actuator using a fiber bragg grating displacement sensor system
Journal
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Journal Volume
56
Journal Issue
10
Start Page
2036
End Page
2049
ISSN
08853010
15258955
Date Issued
2009
Author(s)
Ma, Chien-Ching
Abstract
This paper provides a fiber Bragg grating (FBG) sensor system which can measure the point-wise, out-of-plane displacement to examine the position-tracking control problem of a multilayer piezoelectric actuator (MPA). An FBG filter-based wavelength-optical intensity modulation technique is used in this study. A nominal system model is identified experimentally from the responses excited by random signals measured by an FBG displacement sensor that are simultaneously compared with those obtained from a laser Doppler vibrometer. To further investigate the sensing ability of the proposed system in a feedback control problem, control strategies including robust H ∞ control, proportional-integralderivative control, and pseudoderivative feedback control are implemented. The characteristics of the step responses for each controller are examined. The experimental results show that the proposed sensor system is capable of performing the system identification and can serve as a feedback control sensor which has a displacement sensitivity of 5 mV/nm.
Subjects
Control Strategies
Displacement Sensor
Displacement Sensor Systems
Feedback Control Problem
Fiber Bragg Grating Sensor
Filter-based
Laser Doppler Vibrometers
Multilayer Piezoelectric Actuator
Nominal System
Optical Intensity Modulation
Out-of-plane Displacement
Random Signal
Robust H
Sensor Systems
System Identifications
Tracking Control Problem
Tracking Controls
Cantilever Beams
Feedback Control
Fiber Bragg Gratings
Fiber Optic Components
Fiber Optic Sensors
Model Structures
Multilayers
Navigation
Piezoelectric Actuators
Piezoelectric Transducers
Piezoelectricity
Robust Control
Sensors
Three Term Control Systems
Tracking (position)
Feedback
SDGs
Type
journal article