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Measuring sensor and measurement device

A technology for measuring transducers and measuring devices, which is applied in the field of measuring transducers and can solve problems such as circuit board damage

Pending Publication Date: 2021-03-16
ENDRESS HAUSER FLOWTEC AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of high-temperature applications, the necessary mechanical contact between the board and the board's support can change after repeated temperature alternations, which can even lead to damage to the board in the case of high temperatures

Method used

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  • Measuring sensor and measurement device
  • Measuring sensor and measurement device
  • Measuring sensor and measurement device

Examples

Experimental program
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Effect test

Embodiment Construction

[0043] FIG. 1 shows a measuring device 200 with a measuring transducer 100 having two measuring tubes 110 held by a supporting body 120 of the measuring transducer. The measuring tube communicates at the inlet side with a first manifold 141 and at the outlet side with a second manifold 142, wherein the first manifold 141 is adapted to receive a medium flowing from a pipe (not shown) into the measuring transducer, And distribute the medium evenly into the measuring tube. Correspondingly, the second manifold 142 is adapted to receive the medium flowing out of the measuring tube and to convey the medium back into the pipeline. In this case, the measuring transducer is connected to the pipeline via a process connection 150 , in particular a flange 151 . The measurement transducer comprises an oscillation exciter 11 adapted to excite the measurement tube to oscillate. As a supplement, the measuring transducer comprises two oscillation sensors 10 which are suitable for registering...

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Abstract

The invention relates to a measuring sensor (100) of a measurement device for detecting a mass flow or a density of a medium flowing through at least one measuring tube (110) of the measuring sensor,comprising the following features: the measuring tube has at least one exciter (10), which is designed to excite the at least one measuring tube to vibrate; at least two sensors (11) are provided, which are designed to detect the deflection of the vibrations of at least one measuring tube; the at least one exciter and the sensors each comprise a coil device (1), which coil device has a printed circuit board (2) having a first coefficient of thermal expansion, characterised in that at least one coil device of the sensors and / or the coil device of the exciter is secured by means of a retaining device (131), the retaining device being designed to clamp the printed circuit board, and the printed circuit board being mechanically contacted with the retaining device by means of at least one retaining element (132) of the retaining device, the retaining element having a second coefficient of thermal expansion, the first coefficient of thermal expansion and the second coefficient of thermal expansion differing from one another by less than 3*10-6 / Kelvin.

Description

technical field [0001] The invention relates to a measuring transducer of a measuring device for recording the mass flow or density of a medium flowing through at least one measuring tube of the measuring transducer, wherein the exciter is adapted to excite the at least one measuring tube to oscillate, and wherein , at least two sensors are adapted to register the oscillations of the measuring tube. Furthermore, the invention relates to a measuring device comprising such a measuring transducer. Background technique [0002] The aforementioned actuators and / or sensors generally each comprise a coil arrangement with a coil, which is arranged on a circuit board or inside; see for example DE 10 2015 120 087 A1. The coil arrangement of the actuator and / or the sensor itself is mounted via a bracket on the measuring tube or on the supporting body of the measuring transducer. In the case of high-temperature applications, the necessary mechanical contact between the circuit board a...

Claims

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Application Information

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IPC IPC(8): G01F1/84G01N9/00G01F15/00H01F5/00G01F15/18
CPCG01F1/8422G01F1/8427G01F1/8477G01F1/8413G01N9/002H01F5/003G01F15/006G01F15/18G01N2009/006G01F1/8431H01F27/2804H01F2027/2809
Inventor 本杰明·施文特马克·维尔纳克劳德·霍林格马丁·斯图基
Owner ENDRESS HAUSER FLOWTEC AG
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