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Proceedings Paper

Tunable etalons and other applications of multi-application low-voltage piezoelectric instrument control electronics (MALICE)
Author(s): Alan D. Scott; Rodney Norman; Liping Zhou
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Paper Abstract

EMS have developed low voltage piezoelectric (LVPZT) tunable filters for the James Webb Space Telescope (JWST), and a wide field tunable Michelson for the Canadian Space Agency’s (CSA) Stratospheric Wind Interferometer For Transport studies (SWIFT) instrument. As a spin-off from this work, we have developed a prototype control system for ground-based interferometric optics using LVPZTs and capacitive displacement sensor feedback. The system is designed to control three channels in parallel with a measurement resolution target of <0.1 Å/√Hz, and thermal drift bandwidth limit of ~1 Hz over a dynamic motion range of ~8 μm. The prototype Multi-Application LVPZT Instrument Control Electronics (MALICE) system will be delivered in fall 2004 with a field-widened Michelson to perform observations of atmospheric wave phenomena at remote weather stations. We describe the performance of the MALICE prototype and its applications to astronomical imaging and remote sensing.

Paper Details

Date Published: 30 September 2004
PDF: 8 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.552005
Show Author Affiliations
Alan D. Scott, EMS Technologies Canada, Ltd. (Canada)
Rodney Norman, EMS Technologies Canada, Ltd. (Canada)
Liping Zhou, EMS Technologies Canada, Ltd. (Canada)

Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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