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:
May. 15, 1979
Filed:
Nov. 12, 1976
Hans-Georg Fitzky, Odenthal-Hahnenberg, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
The damping of a microwave resonator by the sample to by examined is used as a measurement for the moisture content of the sample. In this arrangement use is made of a microwave generator whose frequency range is selected so that the complete resonance curve of the resonator both when empty and when supplied with the sample is covered. The measurement head containing the resonator is in the form of an insertion and immersion probe and consists of a one part cavity resonator which is provided at the point of maximum electrical or magnetic field strength with a perforation having a diameter of .phi.<0.5.lambda.(.lambda.=microwave length). Through this perforation a scattered electrical field passes into the sample applied to it or guided over it.