EP 3914904 A1 20211201 - TESTING DEVICE FOR DETERMINING A DIELECTRIC VALUE
Title (en)
TESTING DEVICE FOR DETERMINING A DIELECTRIC VALUE
Title (de)
MESSGERÄT ZUR BESTIMMUNG EINES DIELEKTRIZITÄTSWERTES
Title (fr)
APPAREIL DE MESURE POUR DÉTERMINER UNE CONSTANTE DIÉLECTRIQUE
Publication
Application
Priority
- DE 102019101598 A 20190123
- EP 2019084412 W 20191210
Abstract (en)
[origin: WO2020151869A1] The invention relates to a testing device for determining a dielectric value (DK) of a filled material (3) and to a method for operating same. The concept underlying the invention is based on transmitting a high-frequency signal (SHF) in the form of a radar signal (SHF) using a transmitter antenna (112) towards the filling material (3), and on receiving the radar signal (SHF) using a receiver antenna (121) after said signal has passed through the filling material (3). A phase detector (122) of the receiver unit (12) of the testing device (1) generates a first evaluation signal (sreal) which changes proportionally to a phase difference between the received radar signal (SHF) and the generated high-frequency signal (SHF). An evaluation circuit (123) of the receiver unit (12) determines at least one real part (ReDK) of the dielectric value (DK) on the basis of the first evaluation signal (sreal). This method for determining the dielectric value is advantageous in that the testing device (1) can be used on the container (2) without having to be calibrated thereon.
IPC 8 full level
G01N 22/00 (2006.01)
CPC (source: EP US)
G01N 22/00 (2013.01 - EP US); G01N 27/221 (2013.01 - EP); G01R 27/2623 (2013.01 - EP US); G01F 23/2845 (2013.01 - EP)
Citation (search report)
See references of WO 2020151869A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102019101598 A1 20200723; CN 113302480 A 20210824; EP 3914904 A1 20211201; US 2022082513 A1 20220317; WO 2020151869 A1 20200730
DOCDB simple family (application)
DE 102019101598 A 20190123; CN 201980088886 A 20191210; EP 19829425 A 20191210; EP 2019084412 W 20191210; US 201917425385 A 20191210