Abstract: A method for protecting a plurality of metal electrical poles and copper grounding from galvanic corrosion in corrosive soils includes electrically interconnecting the poles to a grounding grid and providing an impressed current anode for the cathodic protection of the grounding grid.
Abstract: A method for protecting a plurality of metal electrical poles and copper grounding from galvanic corrosion in corrosive soils includes electrically interconnecting the poles to a grounding grid and providing an impressed current anode for the cathodic protection of the grounding grid.
Abstract: A sensor measures the interaction of an applied magnetic field to an iron sample surface to determine whether the sample surface has been graphitized. The sensor measures the magnetic force resulting from the interaction or the magnetic flux density to determine the content of magnetic material in localized regions of the sample surface. The sensor includes a cantilever beam with a strain gauge for measuring magnetic force. Alternatively, the sensor includes a magnetic flux density sensor to measure magnetic flux density.
Type:
Grant
Filed:
May 17, 2010
Date of Patent:
April 10, 2012
Assignee:
Matco Services, Inc.
Inventors:
Mehrooz Zamanzadeh, Gordon Kirkwood, Sam Scheinman
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