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:
Jun. 24, 1986
Filed:
Sep. 21, 1984
Applicant:
Inventors:
Burkhard Schiek, Bochum, DE;
Uwe Gartner, Wetter, DE;
Assignee:
Bergwerksverband GmbH, Essen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
331 65 ; 328-1 ; 34087025 ;
Abstract
An amplitude ratio and phase-difference analysis can be carried out with a measured object provided with a measured branch which is divided from a reference branch from a supply oscillator. The measured branch has 2.sup.n switching combinations of phase shifters which are decoupled from one another and operated by a controller. The branches then feed a mixer and through a band-pass filter calculating circuit for determining the relative amplitude and phase which can be displayed on a register.