The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 1980
Filed:
Jun. 28, 1978
Applicant:
Inventors:
Hirohisa Kawamoto, Princeton, NJ (US);
Elmer L Allen, Jr, Philadelphia, PA (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
324 / ; 324 62 ;
Abstract
A system for measuring the bulk resistivity or sheet resistance of a sample of material includes a source of r.f. signals, a transmitting device and receiving device. The sample is placed between the transmitter and the receiver. A display is used to monitor the amplitude characteristic of the received r.f. signal at a particular frequency. The amplitude characteristic at the particular frequency is a measure of the bulk resistivity of the sample of the material.