Measuring system having a pressure device and method for monitoring and/or checking such a pressure device

Abstract

The method is used for monitoring and / or checking a pressure device having a lumen enclosed by a wall (W), namely a device for conducting and / or holding a fluid. For this purpose, the method comprises a step of detecting an extension (XEpslion1) of the wall, by means of a strain gauge or a strain sensor (61) formed thereby mounted on the exterior of the wall, in order to determine an extension value (XEpslion1) representing specific extension of the wall, and further comprises a step of using the extension value (XEpslion1) for determining a damage (Deltaw) to the wall, for example as a result of a plastic deformation of the wall and / or of wear and tear to the wall. The measuring system according to the invention comprises, in addition to the pressure device, at least one strain sensor (61) mounted on a wall segment (WS) of the wall (W) in order to generate an extension signal (d1) dependent on a time-variable extension (Epslion1) of the wall segment, and a transforming electronics unit (UE) electrically coupled to the strain sensor. The transforming electronics unit is designed to receive the extension signal, and by using the same, to determine specific damage (Deltaw) to the wall.

Description

technical field [0001] The invention relates to a method for monitoring and / or checking a pressure device having an inner chamber surrounded by a wall, for example a metal wall, such a pressure device, ie a device for conveying and / or storing a fluid in said inner chamber. , such as devices rated for a static positive pressure, or a pressure in excess of 1 bar, acting on the wall of a gas, liquid or flowable dispersion. Furthermore, the invention relates to a measurement system for determining a measured variable, for example a fluid dynamic and / or thermodynamic measured variable, such as a measured value representing a volume flow rate, mass flow rate, density, viscosity, pressure or temperature of a fluid ( In particular a measuring system suitable for carrying out the method) comprising such a pressure device. Background technique [0002] For example also in accordance with "Guideline 97 / 23 / E Hof the European Parliament and the Advisory of 29 May 1997 for equalizing the...

AI Technical Summary

Problems solved by technology

Although in the case of measuring systems formed by vibrating measuring transducers, or pressure devices, these methods, or measuring arrangements, can be used very advantageously, or also applied to increase the measured value, it can be seen from the fact that The disadvantage of these methods, or measuring arrangements, is that they operate on the basis of a measuring signal—here an oscillating signal—specific to these measuring systems and are therefore exclusively suitable for these measuring systems and thus virtually all pressure devices a relatively small part of

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