Optical Sample-Position Sensing For Electrostatic Levitation

G. Sridharan; S. Chung; D. Elleman; W. K. Rhim

doi:10.1117/12.960959

26 October 1989 Optical Sample-Position Sensing For Electrostatic Levitation

G. Sridharan, S. Chung, D. Elleman, W. K. Rhim

Proceedings Volume 1118, Space Optical Materials and Space Qualification of Optics; (1989) https://doi.org/10.1117/12.960959
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

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.

Citation Download Citation

G. Sridharan, S. Chung, D. Elleman, and W. K. Rhim "Optical Sample-Position Sensing For Electrostatic Levitation", Proc. SPIE 1118, Space Optical Materials and Space Qualification of Optics, (26 October 1989); https://doi.org/10.1117/12.960959

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