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Coriolis measuring sensor and coriolis measuring device having coriolis measuring sensor

A measuring device, Coriolis technology, applied in the direction of mass flow measuring device, measuring device, measuring flow/mass flow, etc., can solve problems such as magnetic coupling interference

Pending Publication Date: 2022-02-25
ENDRESS HAUSER FLOWTEC AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operation of a Coriolis measuring device in an external magnetic field can also lead to disturbances in the magnetic coupling

Method used

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

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Embodiment Construction

[0067] 1 shows the structure of an exemplary Coriolis measuring device 1 with an exemplary Coriolis sensor 10, wherein the Coriolis sensor has two measuring tubes 11 (each measuring tube 11 has an inlet 11.1 and an outlet 11.2), a support body 12 for supporting the measuring tube, an actuator 13 and two sensors 15 . The exciter is designed to excite the two measuring tubes to vibrate perpendicularly to the longitudinal measuring tube plane defined by the curved measuring tubes. The sensor is configured to detect vibrations exerted on the measuring tube.

[0068] The Coriolis sensing element is connected to the electronics housing 80 of the Coriolis flowmeter, the electronics housing 80 is configured to house the electronic measurement / operation circuit 77, the electronic measurement / operation circuit 77 is configured to operate the actuator and sensor, and A mass flow value and / or a density value is determined and provided based on the vibration characteristics of the measuri...

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PUM

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Abstract

The invention relates to a Coriolis measuring sensor (10) of a Coriolis measuring device (1), comprising: at least a pair of measuring tubes (11); a support body (12); at least one exciter (13), at least two sensors (14) per pair of measuring tubes, wherein the sensors are designed to mask interference magnetic fields and to detect local inhomogeneous magnetic fields generated by magnet devices of the sensor.

Description

technical field [0001] The present invention relates to a Coriolis sensor with an improved sensor system, and a Coriolis measuring device with such a Coriolis sensor. Background technique [0002] Coriolis measuring devices for measuring the mass flow or density of a medium flowing through the measuring tube of a flowmeter are prior art; for example, DE102015120087A1 shows a double-tube Coriolis measuring device in which the vibration sensor is based on a coil with Magnetic coupling between magnets. [0003] Such Coriolis measuring devices can be manipulated by disturbing the magnetic coupling, for example by external magnets. However, the operation of a Coriolis measuring device in an external magnetic field can also lead to disturbances in the magnetic coupling. When the measuring tube is vibrated, the external magnetic field on the one hand generates an alternating voltage directly in the coil moving with the measuring tube and on the other hand generates eddy currents,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/84
CPCG01F1/8477G01F1/8431G01F1/8427G01F1/8422G01F1/8459
Inventor 约翰·波尔恩尼奥·比托
Owner ENDRESS HAUSER FLOWTEC AG