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Sensing Position With Approximately Constant Contact ForceComputer-controlled electromechanical system uses number of linear variable-differential transformers (LVDTs) to measure axial positions of selected points on surface of lens, mirror, or other precise optical component with high finish. Pressures applied to pneumatically driven LVDTs adjusted to maintain small, approximately constant contact forces as positions of LVDT tips vary.
Document ID
19960018817
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Sturdevant, Jay
(Hughes Aircraft Co.)
Date Acquired
August 17, 2013
Publication Date
March 1, 1996
Publication Information
Publication: NASA Tech Briefs
Volume: 20
Issue: 3
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
MFS-28936
Accession Number
96B10122
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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