Resumes
Resumes
Richard Janik Phones & Addresses
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9832 Shorecliff Rd, Angola, NY 14006 (716) 549-4550
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931 Lake St, Angola, NY 14006 (716) 549-2989
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Arlington, VA
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24 Forsythia Ln, Pilesgrove Township, NJ 08098 (856) 769-5463
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Pilesgrove, NJ
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Erin, NY
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23 Rainford Ct, Sugar Land, TX 77479 (281) 491-7098
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15000 Airport Blvd, Sugar Land, TX 77478 (281) 313-5102
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West Seneca, NY
Publications
Us Patents
Method And Apparatus For Identifying Conductive Objects By Monitoring The True Resistive Component Of Impedance Change In A Coil System Caused By The Object
View pageUS Patent:
42635519, Apr 21, 1981
Filed:
Jan 20, 1978
Appl. No.:
5/871099
Inventors:
William D. Gregory - Vienna VA
Larry H. Capots - McLean VA
James P. George - Falls Church VA
Richard Janik - Arlington VA
Larry H. Capots - McLean VA
James P. George - Falls Church VA
Richard Janik - Arlington VA
Assignee:
Georgetown University - Washington DC
International Classification:
G01R 3312
US Classification:
324233
Abstract:
The type of conductor, its property, and if a metal, its type and cross-sectional area can be obtained from measurements made at different frequencies for the amount of unbalance created in a previously balanced stable coil detection system. The true resistive component is accurately measured and thus reflects only the voltage loss attributable to eddy currents caused by introduction of the test sample to the coil system. This voltage divided by corresponding applied frequency gives a curve which peaks at a frequency dependent upon type of conductor. For a metal this peak frequency is proportional to the samples resistivity divided by its cross-sectional area.