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Dry module for relative pressure measurement recorder

A technology for measuring transducers and relative pressure, which is applied in the direction of pressure difference measurement between multiple valves, measuring devices, measuring fluid pressure, etc., can solve the problem that it is impossible to refit the measuring transducer, etc., and achieve the purpose of extending the application time Effect

Active Publication Date: 2017-02-22
EHNDRESS KHAUZER GMBKH KO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, in a given case, the space requirement of the drying chamber is contrary to the desired miniaturization of the transducer housing, and for space reasons it is often not possible to retrofit existing measuring transducers with a drying chamber

Method used

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  • Dry module for relative pressure measurement recorder
  • Dry module for relative pressure measurement recorder
  • Dry module for relative pressure measurement recorder

Examples

Experimental program
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Effect test

Embodiment Construction

[0063] figure 1 Shown is a schematic diagram (not drawn to scale) of the principle of a relative pressure measuring transducer 3 equipped with the drying module 1 of the invention and used for metering the pressure p to be measured as a relative to the prevailing reference pressure p in the environment in which the measuring transducer is located ref relative pressure p R .

[0064] In most applications, the reference pressure p ref is the atmospheric pressure at the location of use. However, if the measuring transducer 3 is applied in a positive or negative pressure space, the reference pressure p ref An example is the internal pressure of the space.

[0065] The measuring transducer 3 comprises a housing 5 in which a relative pressure sensor 7 is arranged. The relative pressure sensor 7 comprises a pressure sensitive element 9, in particular a measuring membrane, whose first side is supplied in measuring operation with the pressure p to be measured and whose second sid...

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Abstract

The invention relates to a dry module (1, 39) for a relative pressure measurement recorder (3), which relative pressure measurement recorder has a reference pressure feed (17) leading, in the interior of a housing (5) of the measurement recorder (3), from a relative pressure sensor (7) to an opening (15) in a housing wall of the housing (5) and has a connection element (19), the interior of which is connected by means of the opening (15) to the reference pressure feed (17) extending in the measurement recorder (3), the dry module comprising a module housing (23), which has an interior, in which a desiccant (31) is located, and comprising a reference pressure feed (25, 41) extending through a module housing (23), to a first end of which reference pressure feed the reference pressure (pref) can be applied through an opening (27) in the module housing (23), a second end of which reference pressure feed can be connected to the reference pressure feed (17) of the measurement recorder (3) by means of a connection element (21) of the dry module (1, 39) that can be connected to the connection element (19) of the measurement recorder (3), and the interior of which reference pressure feed is in moisture-permeable connection, in the module housing (23), with the interior containing the desiccant (31).

Description

technical field [0001] The invention relates to a dry module for a measuring transducer for measuring a pressure to be measured as a relative pressure relative to a reference pressure prevailing in the environment in which the measuring transducer is located. Inside the housing of the measurement transducer, a reference pressure supply communicates from the relative pressure sensor to an opening in the housing wall of the housing. The invention also relates to a relative pressure measuring transducer with a drying module. Background technique [0002] Transducers for relative pressure measurement are used to record relative pressure in several fields of industrial measurement technology. [0003] In this case, by rule, the reference pressure is usually the ambient pressure in the environment in which the measuring transducer is located. In most applications this is the atmospheric pressure at the point of use. However, if the measuring transducer is used in a space under ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/14G01L13/02G01L19/06G01L19/00
CPCG01L13/02G01L19/003G01L19/0654G01L19/144
Inventor 米夏埃尔·休格尔
Owner EHNDRESS KHAUZER GMBKH KO KG
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