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Pressure sensor assembly and measurement converter for process instrumentation, comprising such a pressure sensor assembly

A pressure sensor and pressure technology, which is applied in the direction of measuring device, measuring fluid pressure, measuring fluid pressure through electromagnetic components, etc., to achieve the effect of simple structure and simple structure

Active Publication Date: 2018-04-17
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantageously, the inductive sensor is here arranged inside the measuring chamber

Method used

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  • Pressure sensor assembly and measurement converter for process instrumentation, comprising such a pressure sensor assembly
  • Pressure sensor assembly and measurement converter for process instrumentation, comprising such a pressure sensor assembly
  • Pressure sensor assembly and measurement converter for process instrumentation, comprising such a pressure sensor assembly

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Embodiment Construction

[0027] in accordance with figure 1In the perspective view of , the principle form of the pressure sensor device 1 is well visible with a tube 2 , in the cross-section of which a membrane 3 is arranged which is loaded with the pressure to be measured. When using the shown pressure sensor device 1 in a pressure measuring transducer for a process instrumentation, the two ends 4 and 5 of the tube 2 are each figure 1 The invisible dome is closed via the dome, via which the process medium with the pressure to be measured is fed to one side of the diaphragm 3 in the case of an absolute pressure sensor and to the side of the diaphragm 3 in the case of a differential pressure sensor sides. The electronics unit for evaluating the electrical signal generated by the pressure sensor device 1 as a function of the respective pressure to be measured can be designed in a conventional manner and is likewise in the figure 1 is not shown. exist figure 1 It becomes apparent that the structural...

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Abstract

The invention relates to a pressure sensor assembly (1) comprising a tube (2), wherein a membrane (3) to which the pressure to be measured is applied is arranged in the cross-section of the tube. Themembrane (3) has a high flexural rigidity in the central region and is mounted in an elastic manner in the axial direction in the edge region (6) in the tube (2). In order to elastically mount the membrane, two limbs (7, 8; 17, 18) are used, the mutually facing sides of which are provided with elongation sensors (9, 10) for detecting an axial movement of the membrane (3), said movement depending on the pressure to be measured. Advantageously, the sensors (9, 10) do not contact the process medium and a pressure-tight feedthrough for electric signals is not required. The pressure sensor assembly(1) is characterized by a particularly simple structural design and can be used advantageously in measurement converters for process instrumentation.

Description

technical field [0001] The invention relates to a pressure sensor device according to the preamble of claim 1 , which has a tube in the cross-section of which a diaphragm is provided which is loaded with the pressure to be measured, and also relates to a pressure sensor device according to claim 7 Measuring transducer for process instrumentation with such a pressure sensor arrangement. Background technique [0002] In process technology installations, a variety of field devices are used for process instrumentation for process control. Measuring transducers are used to detect process variables, eg density or gas concentration of a medium, temperature, pressure, flow rate, fill level. Depending on the detected process variable, the process sequence can be influenced by the actuator in accordance with a strategy, for example preset by a programmable logic controller or a central station. Examples of actuators are regulating valves, heating devices or pumps. Especially in met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L9/00G01L19/06
CPCG01L9/0048G01L19/0618G01L19/0627G01L19/0023G01L19/0038
Inventor 斯特凡·克莱尔
Owner SIEMENS AG
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