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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.

Inventors:
 [1]
  1. (Albuquerque, NM)
Issue Date:
Research Org.:
AT & T CORP
OSTI Identifier:
871772
Patent Number(s):
5793176
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
spatial; feature; tracking; impedence; sensor; multiple; electric; fields; linear; features; workpiece; tracked; measuring; generated; electrodes; arrayed; pairs; electrode; pair; operates; transmitter; receiver; carrier; combining; subtracting; transmitting; receiving; information; describing; location; orientation; relative; six; degrees; freedom; obtained; typical; applications; measure; capacitance; impedance; components; measured; designed; track; axis; protrusion; pocket; seams; ridges; non-contact; output; useful; robotic; six degrees; electric field; electric fields; typical application; sensor output; transmitting electrode; fields generated; six degree; /318/

Citation Formats

Novak, James L. Spatial feature tracking impedence sensor using multiple electric fields. United States: N. p., 1998. Web.
Novak, James L. Spatial feature tracking impedence sensor using multiple electric fields. United States.
Novak, James L. Thu . "Spatial feature tracking impedence sensor using multiple electric fields". United States. https://www.osti.gov/servlets/purl/871772.
@article{osti_871772,
title = {Spatial feature tracking impedence sensor using multiple electric fields},
author = {Novak, James 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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