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Title: Spatial feature tracking impedence sensor using multiple electric fields

Abstract

Linear and other features on a workpiece are tracked by measuring the fields generated between electrodes arrayed in pairs. One electrode in each pair operates as a transmitter and the other as a receiver, and both electrodes in a pair are arrayed on a carrier. By combining and subtracting fields between electrodes in one pair and between a transmitting electrode in one pair and a receiving electrode in another pair, information describing the location and orientation of the sensor relative to the workpiece in up to six degrees of freedom may be obtained. Typical applications will measure capacitance, but other impedance components may be measured as well. The sensor is designed to track a linear feature axis or a protrusion or pocket in a workpiece. Seams and ridges can be tracked by this non-contact sensor. The sensor output is useful for robotic applications. 10 figs.

Inventors:
Issue Date:
Research Org.:
AT&T Corporation
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672723
Patent Number(s):
5,793,176
Application Number:
PAN: 8-042,292
Assignee:
Sandia Corp., Albuquerque, NM (United States) SNL; SCA: 440800; 320303; PA: EDB-98:121264; SN: 98002026895
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 11 Aug 1998
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ON-LINE MEASUREMENT SYSTEMS; ROBOTS; MANUFACTURING; DEGREES OF FREEDOM; IMPEDANCE

Citation Formats

Novak, J.L. Spatial feature tracking impedence sensor using multiple electric fields. United States: N. p., 1998. Web.
Novak, J.L. Spatial feature tracking impedence sensor using multiple electric fields. United States.
Novak, J.L. Tue . "Spatial feature tracking impedence sensor using multiple electric fields". United States.
@article{osti_672723,
title = {Spatial feature tracking impedence sensor using multiple electric fields},
author = {Novak, J.L.},
abstractNote = {Linear and other features on a workpiece are tracked by measuring the fields generated between electrodes arrayed in pairs. One electrode in each pair operates as a transmitter and the other as a receiver, and both electrodes in a pair are arrayed on a carrier. By combining and subtracting fields between electrodes in one pair and between a transmitting electrode in one pair and a receiving electrode in another pair, information describing the location and orientation of the sensor relative to the workpiece in up to six degrees of freedom may be obtained. Typical applications will measure capacitance, but other impedance components may be measured as well. The sensor is designed to track a linear feature axis or a protrusion or pocket in a workpiece. Seams and ridges can be tracked by this non-contact sensor. The sensor output is useful for robotic applications. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {8}
}