EP 4014028 A1 20220622 - MEASURING DEVICE FOR DETERMINING A DIELECTRIC CONSTANT
Title (en)
MEASURING DEVICE FOR DETERMINING A DIELECTRIC CONSTANT
Title (de)
MESSGERÄT ZUR BESTIMMUNG EINES DIELEKTRIZITÄTSWERTES
Title (fr)
DISPOSITIF DE MESURE PERMETTANT DE DÉTERMINER UNE CONSTANTE DIÉLECTRIQUE
Publication
Application
Priority
- DE 102019121995 A 20190815
- EP 2020069522 W 20200710
Abstract (en)
[origin: WO2021028130A1] The invention relates to a measuring device (1) for determining the dielectric constant (DK) of a medium (2). The measuring device (1) is based on two waveguides (11, 12) each comprising a signal port (113, 122) at one end. In this case, the waveguides (11, 12) are arranged in such a manner that the signal ports (113, 122) are opposite one another. A sample compartment for the medium (2) is formed in between, with the result that a high-frequency signal (sHF), which is injected into the first waveguide (11), is transmitted to the second waveguide (12) via the second signal port (122) after passing through the medium (2). Since the transmitted component (THF) and the reflected component (RHF) of the high-frequency signal (sHF) are greatly dependent on the dielectric constant (DK), the latter can be captured thereby in a wide range of values with a high degree of sensitivity depending on the choice of the frequency band and dimensioning of the waveguides (11, 12).
IPC 8 full level
G01N 22/00 (2006.01)
CPC (source: CN EP US)
G01F 23/292 (2013.01 - US); G01N 22/00 (2013.01 - CN EP); G01R 27/2623 (2013.01 - CN); G01R 27/2682 (2013.01 - US)
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)
WO 2021028130 A1 20210218; CN 114222914 A 20220322; DE 102019121995 A1 20210218; EP 4014028 A1 20220622; US 11774477 B2 20231003; US 2022283210 A1 20220908
DOCDB simple family (application)
EP 2020069522 W 20200710; CN 202080057022 A 20200710; DE 102019121995 A 20190815; EP 20739656 A 20200710; US 202017635040 A 20200710