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:
Jul. 28, 1981
Filed:
Oct. 29, 1979
Applicant:
Inventor:
Ezio M Bastida, Milan, IT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 / ;
Abstract
This invention relates to a new type of instrument for measuring the moisture in materials, particularly in earth and sand. According to the invention, the instrument comprises a constant amplitude microwave signal generator, a waveguide container for a sample of moist material, a microwave signal amplitude detector and a directional coupler of high directivity disposed between said generator, said container and said detector. By means of said directional coupler the constant amplitude microwave signals are transmitted to the sample, which reflects to same, and reflected signals are transmitted to the detector.