Device for determining the fill level of a medium

Patent metadata

Field	Value
Publication number	US-9851236-B2
Application number	US-201514980429-A
Country	US
Kind code	B2
Filing date	Dec 28, 2015
Priority date	Jan 13, 2015
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

A device for determining the fill level of a medium in a container having at least one electronic device and at least one signal conductor arrangement. The electronic device supplies the signal conductor arrangement 5 with electromagnetic signals. To provide a device for determining the fill level, the signal conductor arrangement has several emitting devices and the electronic device provides at least one measure for an emitting behavior of at least one emitting device.

First claim

What is claimed is:

1. A device for determining the fill level of a medium in a container, comprising:
at least one electronic device, and
at least one signal conductor arrangement,
wherein the at least one electronic device is constructed for supplying the at least one signal conductor arrangement with electromagnetic signals,
wherein the at least one signal conductor arrangement has a plurality of emitting devices,
wherein the emitting devices are attached to a support element,
wherein the support element is constructed for being inserted into a side wall of a container,
wherein the at least one electronic device is adapted for emitting the electromagnetic signals in the interior of the container during operation,
wherein the at least one electronic device is adapted for providing at least one measure for an emitting behavior of the plurality of emitting devices,
wherein the electronic device is adapted for supplying the plurality of emitting devices with the electromagnetic signals with a predeterminable frequency,
wherein the predeterminable frequency essentially corresponds to a resonance frequency of the emitting devices either when out of contact with the medium or when covered by the medium.

2. Device according to claim 1 , wherein the electronic device is adapted for evaluating at last one impedance behavior of the at least one emitting device for the measure.

3. The device according to claim 1 , wherein the electronic device has at least one reflector circuit.

4. The device according to claim 3 , wherein the reflector circuit is constructed to be able to monitor the adaptation of at least one emitting device when supplying the electromagnetic signals.

5. The device according to claim 3 , wherein the reflector circuit is assigned to exactly one emitting device and is adapted for providing a measure for the emitting behavior of the assigned one emitting device.

6. The device according to claim 1 , wherein, based on the emitting behavior of the emitting device, the electronic device is adapted to determine a conclusion about the medium in addition to a fill level.

7. The device according to claim 6 , wherein the conclusion determined by the electronic device in addition to the fill level is a permittivity of the medium.

8. The device according to claim 1 , wherein a support element at least partially supports the signal conductor arrangement.

Assignees

• Krohne Messtechnik Gmbh

Inventors

• Baer Christoph
• Musch Thomas
• Deilmann Michael
• Bilgic Attila
• Neuburger Stephan

Classifications

• G01F23/2845 Primary

  for discrete levels (G01F23/288, G01F23/292 take precedence) · CPC title

• G01F23/0061

  Physics · mapped topic

• G01F25/24

  Testing proper functioning of electronic circuits · CPC title

• G01F23/80

  Arrangements for signal processing · CPC title

• G01F23/284 Primary

  Electromagnetic waves · CPC title