EP 3063511 A1 20160907 - DEVICE FOR DETERMINING OR MONITORING THE FILL LEVEL OF A MEDIUM IN A CONTAINER
Title (en)
DEVICE FOR DETERMINING OR MONITORING THE FILL LEVEL OF A MEDIUM IN A CONTAINER
Title (de)
VORRICHTUNG ZUR BESTIMMUNG ODER ÜBERWACHUNG DES FÜLLSTANDS EINES MEDIUMS IN EINEM BEHÄLTER
Title (fr)
DISPOSITIF DE DÉTERMINATION OU DE SURVEILLANCE DU NIVEAU DE REMPLISSAGE D'UN FLUIDE DANS UN RÉSERVOIR
Publication
Application
Priority
- DE 102013112025 A 20131031
- EP 2014068206 W 20140828
Abstract (en)
[origin: WO2015062765A1] The invention relates to a device for determining or monitoring the fill level (h, H) or a specified limit level of a medium (3) in a container (2), comprising a self-excited system, which consists of an oscillation generation unit for generating electromagnetic waves within a specified frequency band, at least one sensor (1) having an electrode (4), which sensor is arranged at a specified angle to the longitudinal axis of the container (2), wherein the electromagnetic waves are applied to the electrode (4), wherein the at least one sensor (1) is arranged in relation to the medium (3) in such a way that the phase position of the electromagnetic waves reflected at the boundary surface of the medium (3) changes under the influence of the medium (3), and a feedback circuit, which feeds the electromagnetic waves back to the at least one sensor (1), whereby the frequency of the self-excited system is determined, comprising a frequency detector, which detects the frequency of the electromagnetic waves, and comprising an evaluating unit (28, 29), which determines the relative permittivity (DKmess) dependent on the particular fill level (h) and/or determines the permeability of the medium (3) on the basis of the detected frequency and which determines the fill level (h) or the reaching of the specified limit level of the medium (3) in the container (2) on the basis of the determined relative permittivity (DKmess) or the permeability of the medium (3).
IPC 8 full level
G01F 23/284 (2006.01)
CPC (source: EP US)
G01F 15/063 (2013.01 - EP US); G01F 23/26 (2013.01 - EP); G01F 23/284 (2013.01 - EP US)
Citation (search report)
See references of WO 2015062765A1
Citation (examination)
- US 2008184795 A1 20080807 - WOODARD STANLEY E [US]
- US 2012266689 A1 20121025 - SCHIFERLI WOUTER [NL]
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 102013112025 A1 20150430; CN 105705913 A 20160622; CN 105705913 B 20190322; EP 3063511 A1 20160907; US 2016265959 A1 20160915; WO 2015062765 A1 20150507
DOCDB simple family (application)
DE 102013112025 A 20131031; CN 201480060863 A 20140828; EP 14755827 A 20140828; EP 2014068206 W 20140828; US 201415032194 A 20140828