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:
Apr. 20, 2021
Filed:
Dec. 18, 2018
Endress+hauser Se+co. KG, Maulburg, DE;
Thomas Blödt, Steinen, DE;
Tobias Brengartner, Emmendingen, DE;
Endress+Hauser SE+Co. KG, Maulburg, DE;
Abstract
The present disclosure relates to a measuring device for measuring a dielectric constant of fill substances in containers. The measuring device includes: a transmitting circuit for transmitting a first electromagnetic high-frequency signal and a second electromagnetic high-frequency signal; a receiving circuit for receiving the two high-frequency signals; and an evaluation circuit to ascertain a first phase shift between the transmitting and the receiving of the first high-frequency signal, to ascertain a second phase shift between the transmitting and the receiving of the second high-frequency signal, and to ascertain an amplitude of one of the received high-frequency signals. Based on these three values, the dielectric constant is determined. By determining phase shift at different frequencies, it is possible according to the present disclosure, especially in the case of solid-type fill substances, to determine their dielectric constant uncorrupted, thus without influence of air inclusions or moisture.