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Proceedings Paper

Optical Sample-Position Sensing For Electrostatic Levitation
Author(s): G. Sridharan; S. Chung; D. Elleman; W. K. Rhim
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Paper Abstract

Several different optical position sensing techniques have been used in sample levitation systems. In experiments that have an optically clean environment, electro-optical position transducers have been found to yield accurate results. This paper describes and compares charge coupled device (CCD) sensors, and two dimensional and one dimensional position detectors (PSD's) which have been used in electrostatic sample levitation. Of these the one-dimensional PSD had the best position resolution viz., better than one micron.

Paper Details

Date Published: 26 October 1989
PDF: 6 pages
Proc. SPIE 1118, Space Optical Materials and Space Qualification of Optics, (26 October 1989); doi: 10.1117/12.960959
Show Author Affiliations
G. Sridharan, California Institute of Technology (United States)
S. Chung, California Institute of Technology (United States)
D. Elleman, California Institute of Technology (United States)
W. K. Rhim, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 1118:
Space Optical Materials and Space Qualification of Optics
Robert R. Hale, Editor(s)

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