Unobtrusive Sensor and Effector Technology with Optical Applications
Unobtrusive Sensor and Effector Technology with
Garman Systems, Inc.
One Blue Ridge Court
Getzville, NY 14068
Marco D'Amore (615-343-0520)
This project's goal is to develop an unobtrusive sensor and
effector (USE) to provide nanometer-level displacement control
with bandwidths to 20 kHz and beyond. The effector will need a
displacement of 20 micrometers with a resolution of 20 nanometers.
A self-sensing circuit will allow a single active element to serve
as both a sensor and an actuator for this device. This self-
sensing actuator generates both position and time rate of position
signals. A simple proportional-derivative or a proportional-
integral-derivative control in the system will set performance
parameters such as settling time and overshoot. Various smart
and/or active materials, such as piezoceramics and
electrostrictives, will be investigated for application in the
USE. Smart materials have hysteresis between the applied voltage
and displacement; this project will determine the degree to which
this displacement effect will change the utility of the
servomechanism. The USE actuator will then be incorporated into
the design of a precisely controlled, optical antenna subsegment.
This work will provide a feasibility study for the development of
the USE and determine if both the USE and the antenna subsegment
can meet their targeted specifications.
Potential Commercial Application:
Potential Commercial Applications: Although the work will
investigate its application to adaptive optical systems, the USE
device has potential applications in both acoustics and as a
micromanipulator. The self-sensing technology that allows a single
active element to act both as a sensor and an actuator will be
developed for commercial applications.