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Coriolis sensor and coriolis measuring device having a coriolis sensor

A Coriolis, sensor technology, applied in the field of Coriolis measurement equipment, can solve the problems of low sensitivity of sensor elements, blurred transition parts, etc.

Pending Publication Date: 2021-10-26
ENDRESS HAUSER FLOWTEC AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of this magnetic field generating element is the presence of a magnetic field with an indistinct transition to a magnetic field-free spatial region
This results in low sensitivity of the sensor element

Method used

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  • Coriolis sensor and coriolis measuring device having a coriolis sensor
  • Coriolis sensor and coriolis measuring device having a coriolis sensor
  • Coriolis sensor and coriolis measuring device having a coriolis sensor

Examples

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Embodiment Construction

[0060] figure 1 An example of a Corioli measuring device 1 having an exemplary Coriolis sensor 10 is shown. The sensor includes a support element 20, a first measuring tube 11.1, and a second measurement tube 11.2. The sensor also includes an exciter 12 for exciting measuring tube vibration, and two sensor elements 13 for detecting measuring tube vibration. The Corioli Leli measuring apparatus includes an electronic casing 80, and the electronic measurement / operation circuit 77 is disposed in the electronic housing 80 and is configured to operate the exciter and sensor element and a measurement value providing a medium flowing through the measuring tube. The exciter and sensor elements are connected to the electronic measurement / operating circuit 77 by means of electrical connector 24.

[0061] The embodiments shown herein are examples; therefore, the sensor can also have only one measurement tube or more than two measurement tubes.

[0062]figure 2 A cross section through wh...

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PUM

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Abstract

The invention relates to a Coriolis sensor (10), comprising: at least one measurement tube (11) which has an inlet (11.1) and an outlet (11.2); at least one exciter (12); at least two sensor elements (13); wherein at least one exciter and / or at least one sensor element each have a coil arrangement (14) and a magnet arrangement (15); wherein the magnet arrangement has a retainer for magnets and at least one first magnet group and at least one second magnet group; wherein the retainer has a U shape with a first arm, a second arm and a base connecting the arms, the retainer engaging around the coil arrangement; wherein the first magnet group is retained by the retainer on the first side of the coil arrangement, and the second magnet group is retained by the retainer on the second side of the coil arrangement; characterized in that the retainer has a cavity in the region of each of the arms, each cavity being formed by a cavity wall, each cavity wall having at least one first opening for receiving a magnet group, and the retainer being produced in particular by means of a 3D printing process.

Description

Technical field [0001] The present invention relates to a Coriolis sensor having an improved sensor system or an improved exciter unit, and involves a Corioli measuring equipment having such a Corioli sensor. Background technique [0002] Coriolis measuring equipment for measuring the mass flow or density of the medium flowing through the measuring equipment in the prior art is known. For example, as shown in DE 10 2001 5 20087 A1, a sensor element for detecting measurement tube vibration or an exciter for generating measuring tube vibration may include a planar coil and a U-shaped magnetic field generating element that is engaged around the planar coil. [0003] The disadvantage of this magnetic field generating element is that there is a magnetic field that has a blur transition portion to the magnetic field area. This results in low sensitivity of the sensor element. [0004] Accordingly, it is an object of the present invention to present a Corioli sensor and a Corioli measur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/84
CPCG01F1/8422G01F1/8427G01F1/8404G01F1/8431
Inventor 本杰明·施文特马克·维尔纳克劳德·霍林格格布哈德·格斯彻温德
Owner ENDRESS HAUSER FLOWTEC AG