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Phase-Discriminating Capacitive Sensor SystemCrosstalk eliminated by maintaining voltages on all electrodes at same amplitude, phase, and frequency. Each output feedback-derived control voltage, change of which indicates proximity-induced change in capacitance of associated sensing electrode. Sensors placed close together, enabling imaging of sort. Images and/or output voltages used to guide robots in proximity to various objects.
Document ID
19930000620
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Vranish, John M. (NASA Goddard Space Flight Center, Greenbelt, MD.)
Rahim, Wadi (NASA Goddard Space Flight Center, Greenbelt, MD.)
Date Acquired
August 16, 2013
Publication Date
October 1, 1993
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 10
ISSN: 0145-319X
Subject Category
Electronic Components And Circuits
Report/Patent Number
GSC-13460
Accession Number
93B10620
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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