Test module for single-use cdm (disposable)

Abstract

The testing module according to the invention for a base module (M1) of a vibronic measuring system, in particular of a modular Coriolis mass flow meter, and / or for measuring-system electronics (ME) of the vibronic measuring system, said measuring-system electronics being electrically connected to the base module (M1), which testing module comprises: - a support element (41), which in particular can vibrate when excited with an excitation frequency of between 100 and 950 Hz, preferably with an excitation frequency of 300 Hz, and which in particular is made of metal and / or plastics material; and - at least one, in particular electrical and / or magnetic and / or electronic, first testing element (42) mechanically connected to the support element (41), in particular a permanent magnet, for producing a magnetic field; wherein the testing module is designed to be inserted into the base module and to be releasably mechanically connected thereto, in particular such that the testing module (PM) is locked in the base module (M1) or is immovable and / or that the first testing element (42) is held within the base module (M1) at a first predefined testing position (P1).

Description

[0001] Test module for single-use CDM (disposable)

[0002] The invention relates to a test module for a base module of a (modular) vibronic measuring system and / or for a measuring system electronics of the vibronic measuring system electrically connected to the base module, and to a test arrangement. Furthermore, the invention relates to a method for commissioning and / or testing a (modular) vibronic measuring system using such a test module or such a test arrangement.

[0003] From WO 2019 / 017891 A or WO 2021121867 A as well as the (not pre-published) German patent applications DE 102021105397.8, DE 102020133614.4, DE 102020132685.8, DE 102020133851.1, DE 102020133566.0, DE 102020132986.5, DE 102020132686.6, DE 102020132685.8, DE 102020131452.3, DE 102020132223.2, DE 102020127356.8, DE 102020114519.5 and DE 102020112154.7 respectively disclose modular vibronic measuring systems which are formed by means of a base module, a vibronic module which is mechanically connected to the base module and a measuring system electronics which is electrically connected to the base module and which are used to record at least one measured variable of a fluid measuring medium flowing in a (measuring medium) line, namely to determine measured values ​​for one or more measured variables, for example a mass flow, a volume flow, a density and / or a viscosity, of the measuring medium.

[0004] The base module of such a (modular) vibronic measuring system comprises a (protective) housing with at least one chamber at least partially enclosed by a housing wall, as well as one or more electrical coils, for example cylindrical and / or designed as air-core coils, which are placed (spaced apart from one another) within the chamber of the (protective) housing and are at least indirectly mechanically connected to the housing wall. Each of the coils is also electrically connected to the measuring system electronics. The measuring system electronics can be housed at least partially within the (protective) housing and / or at least partially outside the (protective) housing, for example in a separate electronics housing. The base module is also particularly designed to accommodate the vibronic module of the measuring system and to be mechanically firmly yet detachably connected thereto (forming a vibration-type measuring transducer), in particular.namely, forming a vibration-type measuring sensor or the vibronic measuring system itself; this is particularly also done in such a way that the vibronic module is locked in the base module or is not movable. The vibronic module of the respective measuring system, in turn, is also designed to be replaceable, such that it can be inserted into the chamber, especially on-site, from outside the (protective) housing of the base module or through a (sliding) opening provided in the housing wall, and that it can be removed from the base module again non-destructively, if necessary even without tools, in particular from outside the housing and / or through the (sliding) opening in the housing, or without the base module itself having to be handled or removed from the (process) system. This also makes it possible, among other things, to subsequently install a vibronic module on site, namely in an already installed basic module.to replace a defective or worn vibronic module on site with a new, intact vibronic module that can only be used once or for a specified period of time (“disposable”).

[0005] The vibronic module further comprises one or more, for example cylindrical, permanent magnets and is also designed to be installed in the base module in such a way that each of the permanent magnets is placed within the aforementioned chamber, yet is spaced apart from the housing wall, in particular in such a way that each of the permanent magnets is held in a static installation position predetermined with regard to an orientation and / or a smallest distance from one of the electrical coils of the base module, and that a respective imaginary longitudinal axis of each of the permanent magnets and an imaginary longitudinal axis of at least one of the electrical coils are aligned with one another or extend parallel to one another.

[0006] In the measuring systems in question, each vibronic module further comprises at least one (measuring) tube, for example one that is at least partially straight and / or at least partially curved, with a tube wall forming an outer surface of the tube, in particular made of a metal or a plastic, and with a lumen enclosed by the same tube wall, in particular two essentially identical parallel (measuring) tubes, and each of the aforementioned permanent magnets is fixed to the outside of the tube wall, in particular to a central segment of the tube wall extending between a first segment end and a second segment end remote therefrom, in particular is integrally connected to the tube wall. In addition, the vibronic module or its at least one (measuring) tube is designed to be installed in the housing, if necessary even without tools, in such a way that the tube can be at least partially, in particularplaced entirely within the chamber, yet spaced from the housing wall, and that each of the permanent magnets, in the respective installation position, together with the respective electrical coil, forms a voice coil, particularly useful as an electrodynamic vibration exciter, and / or a plunger coil, particularly useful as an electrodynamic vibration sensor. In the case of a (measuring) tube that is bent at least in sections, the aforementioned central segment can, for example, be substantially U-shaped or V-shaped.

[0007] In such a vibronic measuring system, each of the aforementioned (measuring) tubes is additionally configured, during operation, to carry a fluid measuring medium flowing within the lumen, in particular with a predeterminable flow direction and / or pointing from the first segment end to the second segment end, and to be vibrated during this time in order to generate measuring effects correlated with one or more measured variables of the measuring medium, in particular in such a way that the central segment executes oscillating movements around a static rest position and / or that the (measuring) tube is driven by at least one of the aforementioned (energized) moving coils and / or that an (alternating) voltage representing oscillating movements of the at least one tube and thus serving as an oscillation signal is generated by means of the aforementioned moving coils.The measuring system electronics of such a measuring system is in turn set up accordingly to feed electrical power into the at least one electrical coil forming the aforementioned moving coil by means of an electrical driver signal, in particular with an impressed alternating current and / or an impressed (alternating current) frequency substantially corresponding to a resonance frequency of the at least one pipe, and / or to determine measured values ​​for the one or more measured variables to be recorded of the medium flowing through the (measuring) pipe or pipes based on the (alternating) voltage generated by the at least one electrical coil forming the aforementioned moving coil, in the case of a Coriolis mass flow meter orFor example, a measuring system designed as a Coriolis mass flow-density meter can generate (mass flow) measured values ​​representing the mass flow based on a (measurement) phase difference between two of the aforementioned vibration signals caused by Coriolis forces in the medium flowing through the vibrating pipe, as well as a phase difference-to-measurement characteristic function set up in the measuring system electronics. The phase difference-to-mass flow measured value characteristic function can, for example, be a (linear) parametric function with a (scale) zero point corresponding to a (measurement) phase difference between the two vibration signals measurable when the medium is at rest or at a mass flow of zero, and with a gradient corresponding to a (measurement) sensitivity of the measuring system or a change in the (measurement) phase difference related to a change in the mass flow.Since one or more resonance frequencies of the at least one pipe depend in particular on the instantaneous density of the respective measuring medium, such a measuring system can be used to directly measure not only the mass flow but also the density of the measuring medium flowing through it based on the (alternating current) frequency of the driver signal and / or a (signal) frequency of at least one of the vibration signals. Accordingly, the measuring system electronics of measuring systems of the type in question are typically also configured to generate (density) measured values ​​representing the density based on the aforementioned (alternating current) frequency of the driver signal and / or a corresponding signal frequency of at least one of the vibration signals, for example, using a useful frequency-to-measured value characteristic function configured accordingly in the measuring system electronics.Furthermore, it is also possible to directly measure the viscosity of the flowing medium using vibronic measuring systems of the type in question, for example, based on the excitation energy or excitation power required to maintain the useful vibrations and / or based on the damping of the excited (resonance) vibrations resulting from the dissipation of vibration energy, or using a damping-to-measured value characteristic function configured accordingly in the measuring system electronics. Furthermore, other derived measured variables, such as the Reynolds number, can be easily determined from the aforementioned flow and / or material parameters using such vibronic measuring systems.

[0008] To simplify the commissioning of a measuring system formed in this way, the vibronic module can further comprise at least one identification element relating to or carrying identifying information about the vibronic module, for example a barcode, QR code or radio label (RFID TAG) attached to at least one pipe, and / or the base module can comprise at least one light-emitting semiconductor element positioned within the (protective) housing and connected to the measuring system electronics, for example a light-emitting diode (LED), and / or one or more radio transmitters / receivers (RF transceivers) and / or photosensors, for example one or more CCD photosensors and / or one or more CMOS photosensors, each positioned within the (protective) housing and connected to the measuring system electronics.

[0009] Vibronic measuring systems of the type in question must also be regularly checked for their functionality and / or any deviations from a previously determined reference state, for example the one specified by the manufacturer or in the manufacturing plant and / or a reference state determined on-site during calibration or commissioning of the measuring system, for example in order to be able to detect as early as possible any reductions in functionality or measurement accuracy of the measuring system, with which it ultimately maps the measured variables to be recorded, not least the mass flow and the density, into the corresponding measured values, which are associated with increased deviations from the reference state.The measurement accuracy of such a measuring system can occur, for example, in the form of mostly irreversible changes in the electrical impedance of the aforementioned oscillating and / or moving coils and / or a permanently reduced stability of the mechanical connection between the base module and the vibronic module or the precision of the positioning of the vibronic module in the base module or can be caused, for example, by thermal and / or mechanical overloads, for example as a result of very high or very low temperatures (i.e. in particular temperatures outside the specifications) within the base module, by aging, by increased or condensing moisture occurring within the base module and / or by frequent replacement of vibronic modules, wear of components of the base module.Other influencing factors that at least indirectly and / or at least temporarily impair the functionality of the measuring system include multi- and / or high-frequency electromagnetic (external) radiation or fields (EMC) propagating within the base module or (external) sound waves propagating within the base module, for example in the form of structure-borne sound.

[0010] As a result, it can generally be assumed that one or more of the measuring system's inherent system functions (transfer functions), each of which characterizes a functional dependency of the aforementioned vibration signals on the respective driver signal or one or more functional dependencies of the vibration signals on the driver signal and the respective flow and / or material parameters of the measured material, is changed compared to a (reference) system function inherent in the respective original measuring transducer. An example of such system functions of the measuring system is, among others,a mass flow-to-phase difference system function, according to which the aforementioned (measurement) phase difference of the vibration signals depends on the mass flow, or a density-to-resonance frequency system function of the measuring transducer, according to which one or more resonance frequencies of the at least one pipe depend on the density of the measuring medium.Equally affected by such (over)loads of the measuring transducer are the measuring functions of the measuring system involving the aforementioned system functions, according to which the measuring system as a whole converts the respective measured variable to be recorded into the respective measured values, for example a mass flow-to-measured value measuring function of the measuring system composed of the aforementioned mass flow-to-phase difference system function and a phase difference-to-mass flow measured value characteristic function, namely a characteristic function implemented in the measuring system electronics, according to which a determined phase difference is converted into mass flow measured values, according to which the mass flow measured values ​​determined are dependent on the mass flow.The phase difference to mass flow measured value characteristic function can, for example, be a (linear) parameter function with a (scale) zero point corresponding to a (measurement) phase difference measured when the medium is at rest and a (measurement) sensitivity that corresponds to a change in the (measurement) phase difference related to a change in the mass flow (slope of the characteristic function). Further examples of such system functions that are also potentially affected by disturbances or measurement functions formed thereby can include a density to resonance frequency system function of the measuring transducer or a density to measured value (measurement) function of the measuring system involving this and a resonance frequency to density measured value characteristic function of the measuring system electronics and / or a viscosity to damping system function of the measuring transducer ora viscosity-to-measured value (measurement) function of the measuring system involving this as well as a damping-to-viscosity-measured value characteristic function of the measuring system electronics. The change in the respective system function can accordingly result, for example, in a drift of one or more of the respective characteristic parameters of one or more of the aforementioned characteristic functions, in the case of a linear parameter function, for example, in their zero point and / or their gradient. The aforementioned, possibly irreversible changes to one or more of the system or measuring functions of the measuring system can occasionally also lead to the measuring system as a whole operating incorrectly to such an extent that the high measuring accuracy typically sought for such measuring systems is no longer guaranteed, thus significantly impairing the functionality of the measuring system, possibly even suspending it ora correspondingly critical fault in the affected measuring system exists.

[0011] To take this into account, measuring systems of the type in question are typically subjected to appropriate (re-)tests, for example, regularly recurring as part of routine predictive maintenance. This particularly includes checking the functionality of the vibronic module or the entire measuring system on-site during a (self-)diagnosis carried out by the measuring system at a time and / or triggered by control commands transmitted to the measuring system electronics, for example in order to be able to initiate appropriate repair or replacement measures as quickly as possible if necessary, not least when a malfunction in the measuring system is detected. For a vibronic measuring system of the type in question, such a (repair or replacement) measure regularly includes replacing the defective vibronic module with a new one, which can also be carried out easily and quickly on-site.One disadvantage of such a test procedure, however, is that it only verifies the functionality of the measuring system as a whole, or conversely, that any detected fault cannot easily be precisely localized within the measuring system, i.e., assigned to the base module, the vibronic module, or the measuring system electronics. In particular, such a (self-)diagnosis does not easily enable the identification of faults in the base module or the measuring system electronics electrically connected to it that impair measurement accuracy, in such a way that, in the course of such a test of a measuring system of the type in question, the need to replace the base module and / or the measuring system electronics can also be determined.

[0012] Based on the aforementioned prior art, one object of the invention is to improve the testing of modular vibronic measuring systems in such a way that any malfunctions or defects of the base module and / or the measuring system electronics, not least wear or aging phenomena of the base module or the measuring system electronics that reduce the measuring accuracy of the measuring system as a whole, can be detected as early and reliably as possible and, if necessary, also reported.

[0013] The object is achieved by means of the test module according to claim 1, the test arrangement according to claim 17 and the method according to claim 30. The test module according to the invention for a base module of a vibronic measuring system, in particular a modular Coriolis mass flow meter, and / or a measuring system electronics of the vibronic measuring system electrically connected to the base module, which test module comprises:

[0014] - a first test element which is mechanically connected, in particular electrical and / or magnetic and / or electronic, and which is capable of oscillating, in particular when excited with an excitation frequency between 100 and 950 Hz, preferably with an excitation frequency of 300 Hz, is locked in the base module or is not movable and / or that the first test element is held at a first predetermined test position within the base module.

[0015] According to one embodiment of the test module of the invention, the test module is further configured to be inserted into the base module and releasably mechanically connected thereto in such a way that the first test element is held at a first test position predetermined, in particular with regard to an alignment and / or a smallest distance of an electrical coil of the base module, for example also in such a way that an imaginary longitudinal axis of the first test element and an imaginary longitudinal axis of an electrical coil of the base module are aligned with one another or run parallel to one another in an extension thereof.

[0016] According to an embodiment of the test module of the invention, it is further provided that the first test element has an electrical coil, in particular a cylindrical coil and / or one designed as an air coil.

[0017] According to an embodiment of the test module of the invention, it is further provided that the first test element has a permanent magnet.

[0018] According to an embodiment of the test module of the invention, it is further provided that the carrier element is made at least partially from an environmental sensor, for example a chemically resistant and / or high-strength plastic, such as a polycarbonate or a polyetheretherketone, which is mechanically connected, in particular spaced from the first test element, for detecting at least one physical environmental measurement variable within the base module, in particular from multi- and / or high-frequency electromagnetic environmental measurement variable propagating within the base module into an environmental measurement signal.

[0019] According to a further development of the test module of the invention, this further comprises: at least one environmental sensor mechanically connected to the carrier element, for example spaced from the first test element, for detecting at least one physical environmental measurement variable within the base module, for example from a multi- and / or high-frequency electromagnetic environmental measurement variable propagating within the base module into an environmental measurement signal. According to a further development of the test module of the invention, this further comprises: at least one identification element mechanically connected to the carrier element, for example carrying information relating to or identifying the test module, for example a barcode label, a QR code label or a radio label, which can be inserted and detachably connected to it again, so that the first test element is attached to a, in particularis held in a first test position predetermined with respect to an alignment and / or a smallest distance of an electrical coil of the base module, in particular such that an imaginary longitudinal axis of the first test element and an imaginary longitudinal axis of an electrical coil of the base module are aligned with one another or extend parallel to one another, wherein the base module is configured to accommodate a vibronic module.

[0020] According to a further development of the test module of the invention, this further comprises: at least one environmental sensor mechanically connected to the carrier element, in particular spaced apart from the first test element, for detecting at least one physical environmental measurement variable within the base module, in particular multi- and / or high-frequency electromagnetic environmental measurement variable propagating within the base module into an environmental measurement signal.

[0021] According to an embodiment of the test module of the invention, it is further provided that the base module comprises:

[0022] - a first electrical coil is at least indirectly mechanically connected to at least one chamber of the housing wall, in particular a cylindrical one, which is at least partially enclosed and / or electrically connected to the measuring system electronics.

[0023] According to one embodiment of the test module of the invention, it is further provided that the test module is designed to be inserted into the base module and to be releasably mechanically connected thereto again in such a way that the carrier element and the first test element are placed within the chamber, in particular in such a way that the first test element is held at a first test position predetermined with regard to an orientation and / or a smallest distance from the first electrical coil, and / or that an imaginary longitudinal axis of the first test element and an imaginary longitudinal axis of the first electrical coil are aligned with one another or run parallel to one another in an extension.

[0024] According to a further development of the test module of the invention, this further comprises: at least one second test element for generating a magnetic field, which is mechanically connected to the carrier element, in particular is structurally identical to the first test element and / or functionally identical to the first test element and / or is spaced apart from the first test element.

[0025] According to a further development of the test module of the invention, this further comprises: at least one third test element for generating a magnetic field, which is mechanically connected to the carrier element, in particular is structurally identical to the first and / or second test element and / or functionally identical to the first and / or second test element and / or is spaced apart from the first and second test elements.

[0026] According to one embodiment of the test module of the invention, it is further provided that the test module is designed to be inserted into the first base module and to be releasably mechanically connected thereto again in such a way that the second test element is placed within the chamber, in particular in such a way that the second test element is held at a second test position which is predetermined with regard to an orientation and / or a smallest distance from the second electrical coil and / or spaced from the first test position, and / or that an imaginary longitudinal axis of the second test element and an imaginary longitudinal axis of the second electrical coil are aligned with one another or run parallel to one another in an extension.

[0027] According to an embodiment of the test module of the invention, it is further provided that the carrier element is designed such that, when excited to oscillate at the excitation frequency, the carrier element oscillates exclusively symmetrically to a plane of symmetry of the carrier element due to a flexural rigidity of the carrier element.

[0028] According to an embodiment of the test module of the invention, it is further provided that the carrier element comprises at least one solid, in particular non-medium-carrying, rod on which the first test element is arranged.

[0029] According to an embodiment of the test module of the invention, it is further provided that the carrier element comprises at least one, in particular planar, plate and preferably at least two plates running parallel to one another at least in sections, wherein the first test element is arranged on the at least one plate.

[0030] According to an embodiment of the test module of the invention, it is further provided that the test module is designed in such a way that when excited to oscillate at the excitation frequency, the carrier element oscillates exclusively asymmetrically to a plane of symmetry of the carrier element.

[0031] According to an embodiment of the test module of the invention, it is further provided that the carrier element has an asymmetric weight distribution.

[0032] According to one embodiment of the test module of the invention, it is further provided that the second test element and the third test element are arranged asymmetrically to one another relative to a plane of symmetry of the carrier element. According to one embodiment of the test module of the invention, it is further provided that a magnetic flux density of the second test element differs from the magnetic flux density of the third test element by at least 5%, in particular at least 15%, and preferably at least 50%.

[0033] The test arrangement according to the invention comprises:

[0034] - a test module according to the invention;

[0035] - a basic module of a vibronic measuring system, in particular a modular Coriolis mass flow meter, for accommodating a vibronic module;

[0036] - as well as a measuring system electronics of the vibronic measuring system;

[0037] - where the basic module has:

[0038] - a chamber having at least one chamber at least partially enclosed by a housing wall

[0039] - at least one within the chamber of the at least indirectly mechanically connected; wherein the test module is inserted into the base module and is mechanically firmly, yet detachably connected thereto, such that the carrier element and the first

[0040] Test elements are placed within the chamber, in particular in such a way that the test module is locked in the base module or is not movable and / or that the first test element is held at a first test position predetermined with regard to an orientation and / or a smallest distance from the first electrical coil.

[0041] One embodiment of the test arrangement provides that the measuring system electronics are designed to be fed by means of an electrical supply.

[0042] One embodiment of the test arrangement provides that the measuring system electronics are configured to provide the electrical driver signal with a signal frequency corresponding to a mechanical resonance frequency of the vibronic module.

[0043] One embodiment of the test arrangement provides that the base module has at least one second electrical coil placed within the chamber of the, in particular cylindrical and / or designed as an air coil and / or identical to the first electrical coil, which is at least indirectly mechanically connected, and the second electrical coil is electrically connected to the measuring system

[0044] Electronics is connected.

[0045] One embodiment of the test arrangement provides that the measuring system electronics is configured to detect and evaluate a first electrical coil, in particular one inductively coupled into the second electrical coil by means of the second test element or induced in the second electrical coil, in particular using the first measured values ​​for at least one parameter of the first, at least one third electrical coil is positioned within the chamber of the housing, in particular a third electrical coil is cylindrical and / or designed as an air-core coil and / or is structurally identical to the second electrical coil, is at least indirectly mechanically connected to the housing wall, and the third electrical coil is electrically connected to the measuring system electronics.

[0046] One embodiment of the test arrangement provides that the measuring system electronics is set up to provide a second electrical measurement value for at least one parameter of the second, in particular inductively coupled from the third test element into the third electrical coil or induced in the second electrical coil, within the chamber, but nevertheless spaced from the housing wall, in particular in a static installation position that is predetermined with regard to an alignment and / or a smallest distance from the first electrical coil and / or corresponding to the first test position, and / or in such a way that an imaginary longitudinal axis of the first permanent magnet and an imaginary longitudinal axis of the first electrical coil are aligned with one another or extend parallel to one another.

[0047] One embodiment of the test arrangement provides that the base module is configured to accommodate the vibronic module if the test module is not inserted into the base module; and / or the base module is configured to accommodate the test module if the vibronic module is not inserted into the base module; and / or the vibronic module and the base module are configured to be assembled without tools; and / or the test module and the base module are configured to be assembled without tools.

[0048] One embodiment of the test arrangement provides that the vibronic module is designed to be exchangeable, such that it can be brought into the chamber from outside the chamber and / or through a hole provided in the housing wall and that it can be removed from the base module and / or through the hole.

[0049] One embodiment of the test arrangement provides that the test module is designed in such a way that when the carrier element is excited with the excitation frequency, a difference between a phase angle of a determined first chamber which is at least partially enclosed by a housing wall

[0050] - and at least one within the chamber which is at least indirectly mechanically connected and electrically connected to the measuring system electronics,

[0051] - and a vibronic module, in particular a vibronic module according to the invention; wherein the base module is configured to receive the vibronic module and to be mechanically connected thereto in a fixed yet releasable manner, in particular to form a vibration-type measuring sensor or a vibronic measuring system and / or such that the vibronic module is immobile or is locked in the base module; which method comprises: - using a test module according to the invention to form a test arrangement according to the invention;

[0052] - Checking the base module and / or the measuring system electronics by means of the test module of at least one measured value determined by means of the measuring system electronics with a respective associated reference value and / or at least one threshold value specified therefor;

[0053] - Removing the test module from the base module;

[0054] - and inserting a vibronic module, in particular a vibronic module according to the invention, into the base module to form a vibration-type measuring sensor or the vibronic measuring system.

[0055] According to one embodiment of the method of the invention, the formation of the test arrangement further comprises inserting the test module into the base module, for example after removing a vibronic module from the base module or for commissioning.

[0056] According to a further development of the method of the invention, this further comprises integrating the test setup into a higher-level electronic data processing system. The data processing system can, for example, also be formed by a programmable logic controller and / or by a process control system and / or by an edge computing device and / or by a cloud computing system.

[0057] A basic idea of ​​the invention is, among other things, that in a modular vibronic measuring system, the installation space provided by the respective base module for a vibronic module installed during (normal) measuring operation can also be used to occasionally install a vibronic module that is used to test the base module and / or the measuring system electronics connected to it instead of such a vibronic module, in such a way that the test module, like the respective vibronic module, is installed with the base module for the purpose of forming a test arrangement. One advantage of the invention is that it allows a base module or measuring system electronics of a modular vibronic measuring system to be tested on site in a very simple manner, in particular in situ or without having to remove the already installed base module or the already installed measuring system electronics. In the case of only one-off orVibronic modules that are only to be used for a predetermined period of time (“single-use”) can also advantageously be replaced as part of a planned or regular replacement of the vibronic module previously installed in the respective base module with a new vibronic module. The invention and advantageous embodiments thereof are explained in more detail below with reference to exemplary embodiments shown in the figures of the drawing. Identical or equivalent or similarly functioning parts are provided with the same reference numerals in all figures; where required for clarity or where it otherwise appears expedient, previously mentioned reference numerals have been omitted in subsequent figures. Further advantageous embodiments or developments, in particular combinations of partial aspects of the invention that were initially only explained individually, will become apparent from the figures of the drawing and / or from the claims themselves.

[0058] In detail:

[0059] Fig. 1 , 2 an embodiment of a base module, a measuring system electronics and a vibronic module of a modular vibronic measuring system (still to be assembled);

[0060] Fig. 3a, 3b in different side views an embodiment of the modular vibronic measuring system according to Fig. 1; and

[0061] Fig. 4, 5, 6, 7a-d Examples of test modules.

[0062] 1, 2, 3a and 3b schematically show an embodiment of a (modular) vibronic measuring system which is particularly intended to record at least one measured variable of a fluid medium flowing in a (measured medium) line, namely to determine measured values ​​for one or more measured variables, for example a mass flow, a volume flow, a density and / or a viscosity of the medium. For this purpose, the measuring system comprises a base module M1, a vibronic module M2 and, for example, programmable, measuring system electronics ME. The measuring system electronics ME can, for example, be formed by one or more microprocessors (pC) and / or have a display and operating element, for example formed by a touch display, for example for displaying measurement and / or operating data of the measuring system.The base module M1 comprises a (protective) housing 11 with at least one chamber 11* at least partially enclosed by a housing wall 11+, as well as at least one first electrical coil 12, for example, cylindrical and / or designed as an air-core coil, placed within the chamber 11* of the (protective) housing, which is at least indirectly mechanically connected to the housing wall 11+ and electrically connected to the measuring system electronics ME. The vibronic module M2 comprises at least one, for example, cylindrical, first permanent magnet 22. The measuring system electronics ME can, as is quite common with measuring systems of the type in question, also be housed or designed in a modular manner at least partially within the chamber 11* and / or at least partially outside the chamber 11*, in particular within an electronics housing 100 of the measuring system.The measuring system can be designed, for example, as a modular Coriolis mass flow meter and / or one of the devices described in the patent applications WO 2019 / 017891 A1 , WO 2021121867 A1 , DE 102021105397.8, DE 102020133614.4, DE 102020132685.8, DE 102020133851.1 , DE 102020133566.0, DE 102020132986.5, DE 102020132686.6, DE 102020132685.8, DE 102020131452.3, DE 102020132223.2, DE 102020127356.8, DE 102020114519.5 and DE 102020112154.7 respectively.

[0063] The base module M1 is, as schematically shown in Fig. 3a and 3b or as is readily apparent from a synopsis of Fig. 1, 2, 3a and 3b, particularly designed to receive the vibronic module M2 and to be mechanically firmly but detachably connected thereto, for example in such a way that the vibronic module M2 in

[0064] Base module M2 is locked, and / or in such a way that the vibronic module can also be (subsequently) inserted on site, namely into a base module already installed (in a system). In particular, the base module M1 and the vibronic module M2 are further designed to be assembled to form a vibration-type measuring sensor (of the measuring system) or to be assembled in such a way that an electro-mechanical vibration exciter and / or an (electro-dynamic) vibration sensor of the measuring system is formed by means of the electrical coil 12 (connected to the measuring system electronics ME) and the permanent magnet 22. According to a further embodiment of the invention, the vibronic module is particularly designed to be installed in the base module in such a way that its permanent magnet 22 is placed within the chamber 11*, but is spaced from the housing wall 11+, in particular.namely, it is held in a static (first) installation position E1 predetermined with regard to an alignment and / or a smallest distance from the electrical coil 12 and / or such that an imaginary longitudinal axis of the first permanent magnet and an imaginary longitudinal axis of the electrical coil 12 are aligned with one another or extend parallel to one another. In particular, the permanent magnet 22 is further configured, in installation position E1, together with the electrical coil 12, to form a voice coil, which can be used, for example, as an electrodynamic vibration exciter, and / or a plunger coil, which can be used, for example, as an electrodynamic vibration sensor. According to a further embodiment of the invention, the vibronic module M2 and the base module M1 are further configured to be assembled, in particular on-site, without tools and / or disassembled again, in particular non-destructively.such that the vibronic module can be removed from the base module M1 without causing any damage. Alternatively or additionally, the vibronic module M2 is designed to be particularly replaceable or configured to be removable, in particular non-destructively, in particular on-site from outside the housing and / or through a (insertion) opening provided in the housing wall 11+ of the (protective) housing 11, and / or the vibronic module M2 is configured to be installed, in particular on-site, into the base module M1, in particular in such a way that it can be inserted into the chamber 11* from outside the (protective) housing 11 or through the (insertion) opening. This can be done, for example, without having to handle the base module M1 itself or remove it from the respective (process) system.The aforementioned (insertion) opening can also, if necessary, be closed after installation of the vibronic module using a suitable cover, for example, one that is dust-tight and / or tight against strong water jets and / or explosion-proof. This also makes it possible, among other things, to very easily replace a defective or worn (old) vibronic module on site with a new, intact vibronic module that can be used only once or only for a specified period of time ("disposable"). To support the correct installation of the vibronic module M2 into the base module M1, the vibronic module M2 and the base module M1 can each have corresponding guide structures or elements, for example corresponding (guide) grooves in one of the two.

[0065] Modules (M1, M2) and (guide) springs and / or (guide) pins sliding therein during assembly in the other of the two modules. To further simplify the commissioning of the measuring system, the vibronic module M2 can further comprise at least one identification element 28 relating to or carrying identifying information about the vibronic module M2, for example a barcode, QR code or radio label (RFID TAG), and / or the base module M1 can comprise at least one light-emitting semiconductor element 19a positioned within the (protective) housing and connected to the measuring system electronics (into the chamber 11*), for example a

[0066] Light-emitting diode (LED), and / or one or more radio transmitters / receivers (RF-T ransceivers) positioned within the (protective) housing and connected to the measuring system electronics and / or (for the chamber 11 * illuminating light sensitive)

[0067] Photosensors 19b, for example one or more CCD photosensors and / or one or more CMOS photosensors.

[0068] According to a further embodiment of the invention, the vibronic module M2 has at least one second permanent magnet 24 positioned remotely from the permanent magnet 22, in particular a cylindrical one and / or of identical construction to the permanent magnet 22. Furthermore, the base module M1 accordingly has at least one second electrical coil 14 positioned within the chamber 11* of the (protective) housing, for example a cylindrical one and / or designed as an air-core coil and / or of identical construction to the first electrical coil 12, which second electrical coil 14 (remotely from the electrical coil 12) is at least indirectly mechanically connected to the housing wall 11+ and is also electrically connected to the measuring system electronics. The base module is also configured to accommodate the vibronic module such that the permanent magnet 24 is held in a second installation position, in particular with respect to an alignment and / or remote from the first installation position.that an imaginary longitudinal axis of the permanent magnet 24 and an imaginary longitudinal axis of the electrical coil 14 are aligned with one another or are parallel to one another in their extension. Furthermore, the vibronic module M2 can also have more than two permanent magnets (22, 24) arranged at a distance from one another, thus at least one third permanent magnet 26, and the base module M1 can have more than two electrical coils (12, 14) arranged at a distance from one another within the chamber 11*, thus at least one third air coil 16.

[0069] According to a further embodiment of the invention, the vibronic module M2 has at least one (first) tube 31 with a tube wall forming an outer surface of the tube 31, for example made of a metal or a plastic, and with a lumen 21* enclosed by the same tube wall. The permanent magnet 22 is fixed to the outside of the tube wall, for example, namely integrally connected thereto. As schematically shown in Fig. 1, the at least one tube 31 can be straight at least in sections and / or bent at least in sections, for example such that a central segment of the tube wall extending between a first segment end and a second segment end of the tube wall remote therefrom is U-shaped or V-shaped and / or such that, as also schematically shown in Fig. 1, the at least one permanent magnet 22 is attached to the outside of the aforementioned central segment.The aforementioned permanent magnet 24 and / or further permanent magnets (26) of the vibronic module M2 can also, for example, be attached externally to the middle segment. The at least one tube 31 is furthermore also intended, among other things, to be installed in the base module M1 in the manner described above and also to be incorporated into the course of a (measuring medium) line, for example a hose line or a pipeline. In addition, the at least one tube 31 is particularly designed to conduct a fluid measuring medium in its lumen, in particular a fluid flowing at least temporarily with a predeterminable flow direction, for example from the aforementioned first segment end to the aforementioned second segment end, for example being introduced or discharged via the aforementioned (measuring medium) line, and to be caused to vibrate during this process; this is particularly also done in such a way that the at least one tube 31 undergoes forced bending orperforms resonant oscillations around a static rest position and / or that the at least one permanent magnet 22 is moved relative to the electrical coil 12. Such mechanical oscillations of the at least one (measuring) tube 31 or its central segment can, for example, be excited or maintained by means of the aforementioned oscillation exciter formed by the permanent magnet 22 and the coil 12 and / or detected by means of the aforementioned oscillation sensor formed (by means of the permanent magnet 22 and the coil 12), in particular in such a way that the oscillation sensor provides at least one oscillation signal representing the same oscillations of the tube 31 or its central segment. Last but not least, in order to detect such vibrations of the at least one (measuring) tube 31, in particularnamely the aforementioned central segment, the vibronic module M2 is further configured according to a further embodiment of the invention to be installed in the base module M1 or its (protective) housing 11 in such a way that, as also schematically shown in Fig. 3a, the at least (measuring) tube 31 is placed at least partially, for example also completely, within the chamber 11*, although at least its aforementioned central segment is spaced from the housing wall 11+.

[0070] As is quite common with such vibronic modules or vibronic measuring systems formed therewith, the vibronic module M2 can further comprise at least one second (measuring) tube 32, for example, one that is structurally and / or functionally identical to the first tube, with a tube wall forming an outer surface of the second tube, in particular made of a metal or a plastic, and with a lumen enclosed by the same tube wall. In this case, the aforementioned second permanent magnet 24 can also be fixed to the second tube, for example, vis-à-vis the permanent magnet 22 fixed to the first tube 31, in particular, can be integrally connected thereto; this can also be done, for example, in such a way that an imaginary longitudinal axis of the permanent magnet 24 and an imaginary longitudinal axis of the permanent magnet 22 are aligned with one another or extend parallel to one another.The first and second (measuring) tubes 31, 32 can also, as is quite common in vibronic measuring systems of the type in question, be fluidically connected to one another by means of a first flow divider on the inlet side and a second flow divider on the outlet side, and optionally also be integrated into the course of the aforementioned (measuring medium) line during operation of the measuring system. Not least for the previously described case in which the vibronic module M2 is formed by two tubes (31, 32), the vibronic module M2 can also have more than three permanent magnets arranged at a distance from one another, for example, namely a total of at least six permanent magnets, and the base module M1 can accordingly have more than three electrical coils arranged at a distance from one another within the chamber 11*, for example, namely a total of at least six electrical coils, each of which can also be designed as air-core coils.

[0071] To excite and maintain mechanical vibrations of the at least one (measuring) tube 31 or the vibronic module M2 formed thereby, the measuring system electronics ME is, according to a further embodiment, also configured to provide a first electrical (measuring system) driver signal and to introduce it into at least one of the electrical coils (12, 14) of the base module M2, for example, namely coil 12 and / or the aforementioned coil 14, in order to feed the electrical power required for the aforementioned mechanical vibrations into the at least one electrical coil; this is done in particular in such a way that the at least one (measuring system) driver signal has an impressed alternating current and / or at least one signal frequency corresponding to a mechanical resonance frequency of the vibronic module M2, in particular namely its at least one (measuring) tube 31.In the aforementioned case that the base module M1 comprises at least the electrical coil 14 in addition to the electrical coil 12, the measuring system electronics ME can also be further configured to feed electrical power into the second electrical coil 14 by means of a second electrical (measuring system) driver signal, in particular with an impressed alternating current and / or with a mechanical resonance frequency of the vibronic module or the signal frequency corresponding to its at least one (measuring) tube and / or simultaneously with the first driver signal.

[0072] According to another embodiment of the invention, the measuring system electronics ME is, among other things, also designed to detect and evaluate a first electrical (alternating) voltage from the electrical coil 12 (14), for example induced in the electrical coil 12 and / or in the aforementioned coil 14, for example to determine (parameter) measured values ​​for at least one parameter of the (alternating) voltage, such as an amplitude, a frequency and / or a phase angle, using the (alternating) voltage and / or to calculate measured values ​​for the at least one measured variable to be detected from the measuring substance based on the (alternating) voltage or the (parameter) measured values ​​determined therefor. Furthermore, the measuring system electronics ME can also be designed toto calculate measured values ​​for an inductance of the electrical coil from the (parameter) measured values ​​determined for this purpose, for example in order to take these into account accordingly when checking the functionality of the measuring system or to compare the determined inductance of the first electrical coil 12 with a previously determined (inductance) reference value and / or one or more threshold values ​​specified for this purpose. Alternatively or additionally, the measuring system electronics ME can also be configured, for example, to compare one or more of the aforementioned (parameter) measured values ​​with one or more previously determined (parameter) reference values ​​and / or one or more threshold values ​​specified for this purpose in order to check the functionality of the measuring system.In the aforementioned case that the base module M1 comprises at least the electrical coil 14 in addition to the electrical coil 12, the measuring system electronics can also be configured to detect and evaluate a second electrical (alternating) voltage induced in the coil 14 by the second electrical coil, for example to calculate (parameter) measured values ​​for the at least one parameter of the second (alternating) voltage and / or a phase difference established between the first and second (alternating) voltages based on the second (alternating) voltage, for example to calculate measured values ​​for the at least one measurand to be detected by the measuring substance based thereon. According to a further embodiment of the invention, the measuring system electronics is in particular also configured to calculate measured values ​​for at least one measurand, in particularto determine a mass flow of a flowing fluid and / or the measuring system electronics are configured to determine and evaluate (parameter) measured values ​​for the aforementioned phase difference, for example, to compare one or more (parameter) measured values ​​for the phase difference with a previously determined (parameter) reference value and / or one or more threshold values ​​specified for this purpose. Alternatively or additionally, the measuring system electronics can also be configured to determine measured values ​​for an inductance of the second electrical coil. In order to be able to check or verify the functionality of the base module M1 itself and / or the measuring system electronics ME electrically connected to it or the subsystem thus formed very easily, if necessary on-site during commissioning and / or on a recurring basis, a corresponding test module PM (Figs. 4 to 7) is proposed orprovided, which has a, for example, monolithic and / or plate-shaped and / or tubular, support element 41 and at least one first test element 42, which is mechanically connected to the support element 41, in particular electrical and / or magnetic and / or electronic and / or arranged on a circuit board of the test module PM, for generating a magnetic field, for example a permanent magnet. The support element 41 can, for example, consist of or be manufactured from metal and / or a plastic, for example also at least partially embedding the at least one test element 41 or the aforementioned circuit board, for example also in such a way that an outer protective layer of the support element 41 is formed by means of the aforementioned plastic. The aforementioned plastic can, for example, be a chemically resistant and / or high-strength plastic, such asa polycarbonate (PC) or a polyetheretherketone (PEEK).

[0073] The test module PM according to the invention is furthermore particularly intended or designed to be used to form a test arrangement (PM+M1; PM+M1+ME), namely to be inserted (instead of the vibronic module M2) into the base module M1 and to be releasably mechanically connected thereto, such that the carrier element 41 and the first test element 42 are placed within the chamber 11+; this in particular in the same way as the vibronic module M2 or such that the test module PM is locked in the base module M1 or is not movable. In particular, the test module PM is also designed to be installed in the base module M1 such that the first test element 42 is in a position predetermined or determined by the first electrical coil 12 of the base module.with the first test position P1 corresponding to the aforementioned first installation position, for example also in such a way that the first test element 42 held in the first test position P1 has a predetermined alignment and / or a predetermined smallest distance from the first electrical coil 12 and / or that an imaginary longitudinal axis of the first test element and an imaginary longitudinal axis of the first electrical coil 12 are aligned with one another or run parallel to one another in an extension. For the aforementioned case in which the test element 42 has an electrical coil, the test element 42 can, for example, form a transformer together with the electrical coil 12 of the base module M1, and for the other mentioned case in which the test element 42 has a permanent magnet, the test element 42 can, for example, also form a magnetic coil together with the electrical coil 12 of the base module M1.In order to support the correct installation of the test module PM into the base module M1, the test module PM can also have guide structures or elements corresponding to the aforementioned guide structures or elements of the vibronic module M2 or corresponding to the aforementioned guide structures or elements of the base module M1.

[0074] Not least for the aforementioned case that the base module M1 has a plurality of electrical coils, for example at least also the coil 14, the test module PM can furthermore have in a corresponding manner at least one second test element 44 for generating and / or detecting a magnetic field, which is mechanically connected to the carrier element 41, for example structurally and / or functionally identical to the first test element 42 and / or spaced apart from the first test element, and optionally also additionally at least one third test element 46 for generating and / or detecting a magnetic field, which is mechanically connected to the carrier element 41, in particular structurally and / or functionally identical to the first and / or second test element and / or spaced apart from the first and second test elements.In addition, the test module PM can further be configured to be inserted into the first base module M! and to be releasably mechanically connected thereto in such a way that each of the aforementioned test elements is placed within the chamber 11+, for example in such a way that the second test element 44 is held at a second test position that is predetermined with regard to an orientation and / or a smallest distance from the second electrical coil 14 and / or spaced from the first test position P1 and / or corresponding to the aforementioned second installation position, and / or that an imaginary longitudinal axis of the second test element 44 and an imaginary longitudinal axis of the second electrical coil 14 are aligned with one another or run parallel to one another in an extension thereof.

[0075] Not least for the above-described case that the base module M1 together with the measuring system electronics ME are set up to be able to read out an identification element 28 of the vibronic module M2, the test module can, in order to simplify the commissioning of the test arrangement formed thereby, further comprise at least one identification element 48 which is mechanically connected to the carrier element and in particular carries information relating to or identifying the test module, thus e.g. a barcode label, a QR code label or a radio label (RFID TAG), and in addition the measuring system electronics ME can also be set up to read out information carried by the identification element 48 of the test module PM from the identification element 48, in particular to evaluate it, for example in order to verify whether the test module PM is compatible with the base module M1 and / or the measuring system electronics ME or is approved for forming the test arrangement.

[0076] Fig. 4 shows a test module 41 which is essentially similar to a vibronic module according to the invention or is designed identically to a vibronic module. The tubes 31 and 32 are designed to carry the medium for which the mass flow, the volume flow, the density and / or the viscosity is determined. The first test element 42 - in the form of a permanent magnet - in combination with the first electrical coil of the base module forms a coil driver system via which the tube 31 can be set into mechanical vibrations. The second test element 44 and the third test element 46 are also arranged on the support element 41. Both test elements, in conjunction with a second electrical coil or third electrical coil, respectively, form a coil sensor system which is designed to detect the mechanical vibration of the tube 31.The test module is a previously calibrated (gold standard) vibronic module with which the testing of the base module and / or the measuring system electronics is carried out using at least one measured value determined by the measuring system electronics with a respective associated reference value and / or at least one threshold value specified therefor.

[0077] Fig. 5 shows an alternative test module 41. Instead of the medium-carrying pipe, at least one solid, particularly U-shaped, metallic rod is provided, on which the first test element 42, the second test element 44, and the third test element 46 are arranged. The illustrated embodiment has two parallel rods, each of which has three test elements arranged on it.

[0078] Fig. 6 shows an alternative test module 41. The support element 41 comprises at least one plate 51, in particular a solid and planar plate. The three test elements 42, 44, 46 are arranged on the plate 51a. Additionally, an environmental sensor is arranged on the surface of the plate 51. The illustrated embodiment comprises exactly two planar plates 51a, 51b, which run essentially parallel to one another and each have three test elements arranged on them.

[0079] Fig. 7 ad shows four embodiments of test modules designed such that, when used in the base module, a mass flow is simulated during measurement or a phase difference between the two measurement signals of the at least two sensor systems is detected. In the embodiment according to Fig. 7a, an asymmetric weight distribution is realized by providing plates of different lengths. Plate 51a has a length 11, and plate 51b has a length 12. Length 11 is different from length 12. In the illustrated embodiment, length 11 is greater than length 12. The test elements are essentially identical in construction.

[0080] The design of Fig. 7b differs from the design of Fig. 6 essentially in that the magnetic field strength of the magnetic field generated by the first test element 41 of the first (measuring) tube differs significantly, i.e. significantly outside the tolerance limits for identically constructed test elements, from the magnetic field strength of the magnetic field generated by the first test element 41* of the second (measuring) tube. In the design shown, this is achieved by the different sizes of the test elements (i.e. in this case the permanent magnets). The first test element 41 has a significantly smaller test element diameter than the first test element 41*. The lengths of the plates are essentially identical. The difference in the generated magnetic field strengths is at least 5%, in particular at least 15% and preferably at least 50%. The design of Fig. 7c differs from the design of Fig.6 essentially in that the two plates 51a, 51b used have different material thicknesses. In the embodiment shown, plate 51a has a significantly greater material thickness or plate thickness than plate 51b. The test elements are essentially identical in construction. The embodiment of Fig. 7d differs from the embodiment of Fig. 6 essentially in that plate 51b has a material density that varies spatially in its own longitudinal direction, whereas plate 51a has a spatially constant material density distribution. In the embodiment shown, plate 51b has an opening 51a for this purpose.

Claims

PATENT CLAIMS 1. Test module for a base module (M1) of a vibronic measuring system, in particular a modular Coriolis mass flow meter, and / or a measuring system electronics (ME) of the vibronic measuring system electrically connected to the base module (M1), which test module comprises: - a support element (41) which is capable of oscillating, in particular when excited with an excitation frequency between 100 and 950 Hz, preferably with an excitation frequency of 300 Hz, in particular made of metal and / or plastic; - and at least one first test element (42), in particular a permanent magnet, which is mechanically connected to the carrier element (41), in particular electrical and / or magnetic and / or electronic, for generating a magnetic field; wherein the test module is designed to be inserted into the base module and releasably mechanically connected thereto, in particular such that the test module (PM) is locked in the base module (M1) or is not movable and / or that the first test element (42) is held within the base module (M1) at a first predetermined test position (P1).

2. Test module according to one of the preceding claims, wherein the test module is designed to be inserted into the base module (M1) and to be detachably mechanically connected thereto again in such a way that the first test element (42) is held at a first test position predetermined, in particular with regard to an alignment and / or a smallest distance of an electrical coil (12) of the base module, in particular in such a way that an imaginary longitudinal axis of the first test element and an imaginary longitudinal axis of an electrical coil (12) of the base module are aligned with one another or run parallel to one another in an extension, wherein the base module (M1) is designed to accommodate a vibronic module (M2).

3. Test module according to one of the preceding claims, further comprising: - at least one environmental sensor (47) mechanically connected to the carrier element (41), in particular spaced apart from the first test element, for detecting at least one physical environmental measurement variable within the base module, in particular multi- and / or high-frequency electromagnetic (interference) radiation (EMC) propagating within the base module, sound waves propagating within the base module, thermal radiation propagating within the base module, a temperature within the base module or a humidity within the base module, and for converting the same (detected) environmental measurement variable into an environmental measurement signal.

4. Test module according to one of the preceding claims, wherein the base module (M1) comprises: - a (protective) housing (11) with at least one chamber (11*) at least partially enclosed by a housing wall (11+); - at least one first electrical coil (12) placed within the chamber (11*) of the (protective) housing (11), in particular cylindrical and / or electrically connected to the measuring system electronics (ME), which is at least indirectly mechanically connected to the housing wall (11+).

5. Test module according to the preceding claim, wherein the test module is designed to be inserted into the base module (M1) and to be releasably mechanically connected thereto in such a way that the carrier element (41) and the first test element (42) are placed within the chamber, in particular in such a way that the first test element (42) is held at a first test position (P1) predetermined with regard to an alignment and / or a smallest distance from the first electrical coil (12), and / or that an imaginary longitudinal axis of the first test element and an imaginary longitudinal axis of the first electrical coil (12) are aligned with one another or run parallel to one another in an extension.

6. Test module according to one of the preceding claims, further comprising: - at least one second test element (44) mechanically connected to the carrier element (41), in particular structurally identical to the first test element (42) and / or functionally identical to the first test element and / or spaced apart from the first test element, for generating a magnetic field.

7. Test module according to the previous claim, further comprising: - at least one third test element (46) mechanically connected to the carrier element (41), in particular structurally identical to the first and / or second test element and / or functionally identical to the first and / or second test element and / or spaced apart from the first and second test elements, for generating a magnetic field.

8. Test module according to claim 6 or 7, wherein the test module is configured to be inserted into the first base module and to be releasably mechanically connected thereto again in such a way that the second test element is placed within the chamber, in particular in such a way that the second test element is held at a second test position which is predetermined with regard to an alignment and / or a smallest distance to the second electrical coil and / or spaced from the first test position, and / or that an imaginary longitudinal axis of the second test element and an imaginary longitudinal axis of the second electrical coil (12) are aligned with one another or run parallel to one another in an extension.

9. Test module according to one of the preceding claims, wherein the carrier element (41) is designed such that the carrier element, when excited to oscillate at the excitation frequency, oscillates exclusively symmetrically to a plane of symmetry of the carrier element due to a flexural rigidity of the carrier element.

10. Test module according to one of the preceding claims, wherein the carrier element (41) comprises at least one solid, in particular non-medium-carrying, rod (53) on which the first test element (42) is arranged.

11. Test module according to one of the preceding claims, wherein the carrier element (41) comprises at least one, in particular planar, plate (51 i) and preferably exactly two plates (51a, 51b) running parallel to one another at least in sections, wherein the first test element (42) is arranged on the at least one plate (51 i).

12. Test module according to one of the preceding claims, wherein the test module is designed such that when excited to oscillate at the excitation frequency, the carrier element oscillates exclusively asymmetrically to a plane of symmetry of the carrier element (41).

13. Test module according to the preceding claim, wherein the support element (41) has an asymmetric weight distribution.

14. Test module according to claim 12, wherein the second test element (44) and the third test element (46) are arranged asymmetrically to each other relative to a plane of symmetry of the carrier element (41).

15. Test module according to one of the preceding claims, wherein a magnetic flux density of the second test element (44) differs from the magnetic flux density of the third test element (46) by at least 5%, in particular at least 15% and preferably at least 50%.

16. Use of a test module (PM) according to one of claims 1 to 15 for testing a base module (M1) of a vibronic measuring system, in particular a modular Coriolis mass flow meter, and / or a measuring system electronics (ME) of the vibronic measuring system electrically connected to the base module (M1), in particular a modular one.

17. Test arrangement, comprising: - a test module according to one of claims 1 to 15; - a basic module (M1) of a vibronic measuring system, in particular a modular Coriolis mass flow meter, for accommodating a vibronic module; - as well as a measuring system electronics (ME) of the vibronic measuring system; - where the base module (M1) has: - a (protective) housing (11) with at least one chamber (11*) at least partially enclosed by a housing wall (11+) - at least one, in particular cylindrical, first electrical coil (12) placed within the chamber (11*) of the (protective) housing, which is at least indirectly mechanically connected to the housing wall (11+); wherein the test module (PM) is inserted into the base module (M1) and is thus mechanically fixed, yet detachably connected, such that the carrier element (41) and the first test element (42) are placed within the chamber (11*), in particular such that the test module is locked in the base module or is not movable and / or that the first test element (42) is held at a first test position predetermined with regard to an orientation and / or a smallest distance from the first electrical coil (12).

18. Test arrangement according to claim 17, wherein the measuring system electronics (ME) is configured to feed electrical power into the first electrical coil (12) by means of a (first) electrical (measuring system) driver signal, in particular with an impressed alternating current.

19. Test arrangement according to one of claims 17 to 18, wherein the measuring system electronics (ME) is arranged to provide the (first) electrical (measuring system) driver signal with a signal frequency corresponding to a mechanical resonance frequency of the vibronic module.

20. Test arrangement according to one of claims 17 to 19, wherein the base module (M1) has at least one second electrical coil (14) placed within the chamber (11*) of the (protective) housing (11), in particular a cylindrical coil and / or designed as an air-core coil and / or structurally identical to the first electrical coil (12), which second electrical coil (14), in particular positioned remotely from the first electrical coil, is at least indirectly mechanically connected to the housing wall (11+); and wherein the second electrical coil (14) is electrically connected to the measuring system electronics (ME).

21. Test arrangement according to the preceding claim, wherein the measuring system electronics are configured to detect and evaluate a first electrical (alternating) voltage from the second electrical coil (14), in particular by means of the second test element (42) inductively coupled into the second electrical coil (14) or induced in the second electrical coil (14), in particular using the first (alternating) voltage (parameter) measured values ​​for at least one parameter of the first (Alternating) voltage, in particular an amplitude, a frequency and / or a phase angle, and / or measured values ​​for at least one measured variable of a flowing fluid medium and / or an inductance of the first electrical coil.

22. Test arrangement according to the preceding claim, wherein the measuring system electronics are configured to determine an inductance of the second electrical coil based on the (AC) voltage, in particular to compare the determined inductance of the second electrical coil with a previously determined (inductance) reference value and / or one or more threshold values ​​specified therefor; and / or wherein the measuring system electronics are configured to determine (parameter) measured values ​​for at least one parameter of the first (AC) voltage, in particular an amplitude, a frequency, and / or a phase angle, based on the (AC) voltage, in particular to compare the (parameter) measured values ​​with a previously determined (parameter) reference value and / or one or more threshold values ​​specified therefor.

23. Test arrangement according to one of claims 17 to 22, wherein the base module (M1) has at least one third electrical coil (16) placed within the chamber (11*) of the (protective) housing (11), in particular a cylindrical coil and / or designed as an air-core coil and / or structurally identical to the second electrical coil (14), which third electrical coil (16), in particular positioned remotely from the second electrical coil (14), is at least indirectly mechanically connected to the housing wall (11+); and wherein the third electrical coil (16) is electrically connected to the measuring system electronics (ME).

24. Test arrangement according to one of claims 20 to 23, wherein the measuring system electronics (ME) is configured to detect and evaluate a second electrical (alternating) voltage from the third electrical coil, in particular inductively coupled from the third test element (46) into the third electrical coil (16) or induced in the second electrical coil, in particular namely, based on the second (alternating) voltage, to determine (parameter) measured values ​​for at least one parameter of the second (alternating) voltage, in particular an amplitude and / or a frequency and / or a phase angle and / or a phase difference established between the first and second (alternating) voltages, and / or to determine measured values ​​for at least one measured variable of a flowing fluid and / or an inductance of the second electrical coil.

25. Test arrangement according to the preceding claim, wherein the measuring system electronics are arranged to determine and evaluate (parameter) measured values ​​for a phase difference established between the first and second (alternating) voltages, in particular one or more (parameter) measured values ​​for the phase difference with a a previously determined (parameter) reference value and / or one or more threshold values ​​predetermined therefor; and / or wherein the measuring system electronics are configured to determine measured values ​​for at least one measured variable, in particular a mass flow, of a flowing fluid based on a phase difference established between the first and second (alternating) voltages.

26. Test arrangement according to the preceding claim, wherein the vibronic module is designed to be installed in the base module such that its first permanent magnet (22) is placed within the chamber, but is nevertheless spaced from the housing wall, in particular in a static (first) installation position predetermined with regard to an orientation and / or a smallest distance from the first electrical coil (12) and / or corresponding to the first test position and / or such that an imaginary longitudinal axis of the first permanent magnet and an imaginary longitudinal axis of the first electrical coil (12) are aligned with one another or run parallel to one another in an extension.

27. Test arrangement according to one of 17 to 26, wherein the base module (M1) is configured to accommodate the vibronic module (M2) if the test module is not inserted into the base module; and / or wherein the base module (M1) is configured to accommodate the test module (PM) if the vibronic module (M2) is not inserted into the base module; and / or wherein the vibronic module (M2) and the base module (M1) are configured to be assembled without tools; and / or wherein the test module (PM) and the base module (M1) are configured to be assembled without tools.

28. Test arrangement according to the preceding claim, wherein the vibronic module (M2) is designed to be exchangeable, such that it can be brought into the chamber (11*) from outside the (protective) housing of the base module (M1) and / or through an (insertion) opening of the (protective) housing (11) provided in the housing wall (11+), and that it can be removed again from the base module (M1), in particular non-destructively and / or without tools, in particular from outside the housing (11) and / or through the (insertion) opening of the (protective) housing (11).

29. Test arrangement according to one of 17 to 28, wherein the test module is designed such that when the carrier element is excited with the excitation frequency, a difference is set between a phase angle of a determined first (test system) measurement signal and a phase angle of a second (test system) measurement signal.

30. Procedure for commissioning and / or (re-)testing a vibronic measuring system, in particular a modular Coriolis mass flow meter, - which measuring system includes: - a basic module that - a (protective) housing (11) with at least one chamber (11*) at least partially enclosed by a housing wall (11+) - and at least one first electrical coil (12) placed within the chamber (11*) of the (protective) housing, in particular a cylindrical and / or air-core coil, which is at least indirectly mechanically connected to the housing wall (11+) and electrically connected to the measuring system electronics, - and a vibronic module, in particular a vibronic module according to one of claims 27 to 29; wherein the base module is configured to receive the vibronic module and to be mechanically connected thereto in a fixed, yet detachable manner, in particular to form a vibration-type measuring sensor or a vibronic measuring system and / or such that the vibronic module is immobile or is locked in the base module; which method comprises: - Using a test module according to one of claims 1 to 15 to form a test arrangement according to one of claims 17 to 29; - Checking the base module and / or the measuring system electronics by means of the test module of at least one measured value determined by means of the measuring system electronics with a respective associated reference value and / or at least one threshold value specified therefor; - Removing the test module from the base module; - and inserting a vibronic module, in particular a vibronic module according to one of claims 27 to 29, into the base module to form a vibration-type measuring sensor or the vibronic measuring system.

31. Method according to the preceding claim, wherein forming the test arrangement further comprises inserting the test module into the base module, in particular after removing a vibronic module from the base module.

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