Magnetic inductive flow sensor and measurement point

Patent metadata

Field	Value
Publication number	US-2022074769-A1
Application number	US-201917415844-A
Country	US
Kind code	A1
Filing date	Nov 21, 2019
Priority date	Dec 19, 2018
Publication date	Mar 10, 2022
Grant date	—

Abstract

The present disclosure relates to a magnetic inductive flow sensor for determining the flow or the flow speed of a liquid medium in a measurement tube and comprises a housing, a front part which is situated in the end of the housing and has a front end which can be loaded by the medium, at least two measuring electrodes which form a galvanic contact with the medium, and a magnetic-field-generating device situated in the housing for generating a magnetic field extending through the front end. The sensor for determining a process parameter of the medium is situated in the housing.

First claim

1 - 8 . (canceled)

9 . A magnetic inductive flow sensor for determining the flow volume or the flow speed of a liquid medium in a measurement tube, including:
a housing; a front part situated in the end of the housing and having a front end, wherein the front end can be loaded by the medium;
at least two measuring electrodes forming a galvanic contact with the medium; and
a magnetic-field-generating device situated in the housing for generating a magnetic field extending through the front end;
wherein in that at least one sensor for determining a process parameter of the medium is situated in the housing.

10 . The flow sensor of claim 9 ,
wherein the sensor comprises a pressure transducer or a temperature sensor, wherein the pressure acting on the front end can be applied to the pressure transducer, wherein the temperature sensor is configured to determine a measurement signal dependent on the medium temperature.

11 . The flow sensor of claim 9 ,
wherein two sensors are situated in the housing.

12 . The flow sensor of claim 10 ,
wherein a disk having at least one differential pressure channel is situated between the pressure transducer and the front end.

13 . The flow sensor of claim 12 ,
wherein the front part has at least a first and a second opening for the measuring electrodes and a third opening for the temperature sensor.

14 . The flow sensor of claim 9 ,
wherein the front part has at least a first and a second opening for the measuring electrodes and at least one opening, each designed as a differential pressure channel.

15 . The flow sensor of claim 9 ,
wherein the pressure transducer comprises a printed circuit board with connections for the temperature sensor or the pressure transducer and at least the measuring electrodes, wherein the printed circuit board is connected to a measuring and evaluating unit.

16 . A measurement point for determining a flow volume or a flow speed of a medium, including:
a conduit having a wall for guiding the medium; and an opening in the wall; wherein a flow sensor is inserted through the opening into the conduit; wherein the flow sensor includes: a housing; a front part situated in the end of the housing and having a front end, wherein the front end can be loaded by the medium;
at least two measuring electrodes forming a galvanic contact with the medium; and
a magnetic-field-generating device situated in the housing for generating a magnetic field extending through the front end;
wherein in that at least one sensor for determining a process parameter of the medium is situated in the housing.

Assignees

• Flowtec Ag

Inventors

• Rufer Heinz
• Voigt Frank
• Ziegler Steffen

Classifications

• G01P5/08

  by measuring variation of an electric variable directly affected by the flow, e.g. by using dynamo-electric effect · CPC title

• G01F1/588 Primary

  combined constructions of electrodes, coils or magnetic circuits, accessories therefor · CPC title

• G01F1/60

  Circuits therefor · CPC title