Vibronic module and modular measuring system

Abstract

The invention relates to a vibronic module (VM) of a modular measuring system, in particular a modular Coriolis mass flow meter, for measuring a first measured variable of a fluid medium, comprising: - at least one measuring tube (31, 32) for guiding the measuring medium, - at least one, in particular cylindrical, excitation magnet (22) which is arranged on the measuring tube (31, 32) and is designed to cause the measuring tube (31, 32) to oscillate when it is exposed to a time-varying magnetic field of an excitation coil (12) of a base module (BM), - at least one, in particular cylindrical, sensor magnet (24) which is arranged on the measuring tube (31, 32), - a process connection (PA) which is connected to the at least one measuring tube (31, 32), wherein the process connection (PA) has an inlet channel (101) for introducing the measured substance into the at least one measuring tube (31, 32), wherein the process connection (PA) has a first section (TA1) in which the inlet channel (101) is exclusively curved, - a first sensor (S1) for determining a second measured variable of the measured substance, wherein the first sensor (S2) is arranged in the first subsection (TA1).

Description

The invention relates to a vibronic module of a modular measurement system, in particular of a modular Coriolis mass flow measuring device, for measuring a first measured variable of a fluid measured substance and for use in biopharmaceutical applications, and to a modular measurement system, in particular a Coriolis mass flow measuring device, for measuring a measured variable of a fluid measured substance.WO 2019 / 017891 A1 or WO 2021 / 121867 A2 and also German patent applications DE 102021105397, DE 102020133614, DE 102020132685, DE 102020133851, DE 102020133566, DE 102020132986, DE 102020132686, DE 102020132685, DE 102020131452, DE 102020132223, DE 102020127356, DE 102020114519 and DE 102020112154 are each modular, namely formed by means of a base module, a vibronic module mechanically connected to the base module and measuring system electronics electrically connected to the base module and detecting at least one measured variable of a fluid measured material flowing in a (measured material) line, namely known from the ascertainment of measured values for one or more measured variables, for example a mass flow, a volume flow, a density and / or a viscosity, of the measurement material are similar (modular) vibronic measurement systems.The base module of such a (modular) vibronic measuring system has a housing with at least one chamber at least partially enclosed by a housing wall as well as one or more, for example cylindrical and / or designed as an air coil, electric coils which are placed (spaced apart from each other) within the chamber of the housing and are at least indirectly mechanically connected to the housing wall. Each of the coils is also electrically connected to the electronics measuring system. The measuring system electronics can be accommodated at least partially within the housing and / or at least partially outside the housing, for example, namely in a separate electronics housing. The base module is in particular also configured to receive the vibronic module of the measuring system and thus be connected mechanically firmly, nevertheless releasably (forming a transducer of vibration type), in particular namely forming the vibronic measuring system itself; this in particular also 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 is in turn designed to be replaceable in such a way that it can be introduced into the chamber from outside the housing of the base module, in particular also on site, or through an (insertion) opening of the housing provided in its housing wall, and that it can be removed again from the base module in a non-destructive manner, optionally also without tools, in particular namely from outside the housing and / or through the (insertion) opening of the housing, or without the base module itself having to be handled or removed from the (process) installation for this purpose. This also makes it possible, among other things, to subsequently insert a vibronic module on site, namely into an already installed base module, or to replace a defective or worn vibronic module on site with an intact new vibronic module, which may also be used only once or only for a predetermined period of time (disposable), on site. In the measuring systems in question, each vibronic module further comprises a measuring tube module with at least one, in particular metallic, measuring tube and a process connection, in particular formed from a plastic, which is connectable or connected to the measuring tube module, in particular in a force-fit and / or form-fit manner. The vibronic module furthermore has in each case one or more, for example cylindrical, permanent magnets and is also configured to be installed in the base module in such a way that each of the permanent magnets is placed within the aforementioned chamber, but nevertheless is in each case spaced apart from the housing wall, this in particular in such a way that each of the permanent magnets is held in a respective static installation position predetermined with respect 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 run parallel to one another in extension.In the measuring systems in question, each vibronic module further comprises at least one measuring tube, for example at least sectionally straight and / or at least sectionally curved measuring tube, having a tube wall forming an outer lateral surface of the tube, in particular made of a metal or a plastic, and having a lumen enveloped by said tube wall, in particular namely two substantially identically constructed parallel measuring tubes, and each of the above-mentioned permanent magnets is fixed on the outside of the tube wall, in particular namely at a means segment of the tube wall extending between a first segment end and a second segment end remote therefrom, in particular specifically connected to the tube wall in a materially integral manner. In addition, the vibronic module or its at least one measuring tube is designed to be installed into the housing, optionally also without tools, in such a way that the tube is placed at least partially, in particular completely, inside the chamber, nevertheless is spaced apart from the housing wall, and that each of the permanent magnets in the respective installation position together with the respective electrical coil form a voice coil, in particular serving as an electrodynamic vibration exciter, and / or a voice coil, in particular serving as an electrodynamic vibration sensor. In the case of a measuring tube bent at least in sections, the aforementioned means segment can be embodied, for example, substantially U-shaped or V-shaped. In such a vibronic measuring system, each of the aforementioned measuring tubes is additionally configured to guide a fluid measuring substance during operation within the lumen, in particular with a flow direction that can be predetermined and / or points from the first segment end to the second segment end, and during this, to be caused to vibrate in order to generate measuring effects correlated with one or more measured variables of the measuring substance, in particular in such a way that the segment means performs oscillatory movements about a static rest position and / or that the measuring tube is driven by means of at least one of the aforementioned (energized) oscillatory coils and / or that by means of the aforementioned inductive coils, in each case one oscillatory movement of the at least one tube, and thus the (measuring) voltage that is useful as an oscillatory signal, is generated. The measuring system electronics of such a measuring system is accordingly configured to feed electrical power into the at least one electrical coil forming the aforementioned voice coil by means of an electrical driver signal, in particular with an impressed alternating current and / or an impressed (alternating current) frequency corresponding substantially to a resonant frequency of the at least one tube, and / or to determine measured values for the one or more measured variables to be detected of the measured material flowing through the measuring tube or the tubes on the basis of the (measurement) voltage generated by the at least one electrical coil forming the aforementioned voice coil, In the case of a measuring system designed as a Coriolis mass flow measuring device or as a Coriolis mass flow / density measuring device, for example, specifically based on a (measurement) measurement value between two of the aforementioned oscillation signals brought about by Coriolis forces in the measurement substance flowing through the oscillating tube and a phase difference established in the measuring system electronics with respect to measurement value characteristic curve function, generating (mass flow) measurement values representing the mass flow. The phase difference to the mass flow measurement value characteristic curve function can be, for example, a (linear) parameter function with a (scale) measurement curve which corresponds to a (measurement) measurement curve of the two oscillation signals that can be measured when the measurement substance is stationary or a mass flow of zero, and with a slope which corresponds to a (measurement) sensitivity of the measurement system or a change in the (measurement) measurement curve related to a change in the mass flow. Since one or more resonance frequencies of the at least one tube are also dependent in particular on the instantaneous density of the respective test substance, by means of such a measuring system, in addition to the mass current, the density of the test substance flowing through in each case can additionally also be measured directly on the basis of the (alternating current) frequency of the drive signal and / or on the basis of a (signal) frequency of at least one of the oscillation signals. Accordingly, the measuring system electronics of measuring systems of the type in question is typically also configured to generate (density) measurement values representing the density on the basis of the aforementioned (alternating current) frequency of the driver signal and / or on the basis of a corresponding signal frequency of at least one of the oscillation signals, for example using a useful frequency to measurement value characteristic function configured accordingly in the measuring system electronics. In addition, it is also possible to measure the viscosity of the material to be measured flowing through directly by means of vibronic measuring systems of the type in question, for example based on an excitation energy or excitation power required for maintaining the wanted oscillations and / or based on a damping of the excited (resonance) oscillations resulting from dissipation of oscillation energy or using a damping to measured value characteristic function correspondingly set up in the measuring system electronics. In addition, further derived measured variables, such as the Reynolds number, can be easily determined from the aforementioned flow and / or substance parameters by means of such vibronic measurement systems.To simplify the startup of a measuring system formed in this way, the vibronic module can furthermore have at least one identification element, for example a barcode, QR code or radio tag (RFID TAG), which is positioned within the housing and connected to the measuring system electronics, and / or the base module can have at least one light-emitting semiconductor element, for example a light-emitting diode (LED), which is positioned within the housing and connected to the measuring system electronics, and / or one or more radio transmitters / receivers (RF transceivers) and / or photosensors, for example, namely one or more CCD photosensors and / or one or more CMOS photosensors, which are respectively positioned within the housing and connected to the measuring system electronics.The need for one-way sensors in biotechnical applications has increased in recent years. The increase in the different sensors in the hose system is accompanied by an increase in the complexity of the startup of the hose system and of the hose system itself.The object of the invention is to provide a simpler solution.The object is achieved by the vibronic module according to claim 1 and the modular measurement system according to claim 10.The vibronic module according to the invention of a modular measurement system, in particular of a modular Coriolis mass flow measuring device, for measuring a first measured variable of a fluid measured substance, comprising:at least one measuring tube for guiding the material to be measured,at least one, in particular cylindrical, exciter magnet which is arranged on the measuring tube and is designed to bring the measuring tube into oscillations when it is exposed to a temporally variable magnetic field of an exciter coil of a basic module,at least one, in particular cylindrical, sensor magnet which is arranged on the measuring tube,a process connection which is connected to the at least one measuring tube,wherein the process connection has an inlet channel for introducing the test substance into the at least one measuring tube, wherein the process connection has a first subsection in which the inlet channel is configured to be exclusively curved,a first sensor for ascertaining a second measured variable of the measured substance,wherein the first sensor is arranged in the first subsection.Advantageous embodiments of the invention are the subject matter of the dependent claims.One configuration provides that the process connection has a first opening in the first subsection, which opening connects the inlet channel to a first cavity, wherein the first sensor is connected to the first cavity.One configuration provides that the process connection has an outlet channel for discharging the measured substance from the at least one measuring tube, wherein the process connection has a second subsection in which the outlet channel is formed in a curved manner, wherein a second sensor is arranged in the second subsection.One configuration provides that the process connection has a second opening in the second subsection, which opening connects the output channel to a second cavity, wherein the second sensor is connected to the second cavity.One embodiment provides that the first sensor and / or the second sensor is selected from the following list:a temperature sensor,a pressure transducer,a conductivity sensor,a pH probe,a turbidity sensor.One embodiment provides that the second sensor is a pressure transducer, wherein the pressure transducer of the first sensor and the pressure transducer of the second sensor together form a differential pressure transducer.One embodiment provides that the at least one measuring tube comprises a first measuring tube and a second measuring tube, wherein the input channel in the first subsection divides into two transition channels, which correspondingly transition into the first measuring tube and second measuring tube, and / or wherein the output channel in the second subsection divides into two transition channels, which correspondingly transition into the first measuring tube and second measuring tube.One embodiment provides that the vibronic module further comprises:an identifier,wherein calibration data for the first sensor and / or second sensor are stored in the identifier.One embodiment provides that the vibronic module further comprises:a connector for connecting the first sensor to a measurement system electronics of the modular measurement system,wherein the connection is connected to the first sensor and / or second sensor.The modular measurement system according to the invention, in particular a Coriolis mass flow measuring device, for measuring a measured variable of a fluid measured substance, comprises:- a vibronic module according to one of the preceding claims; anda base module comprising:a measuring system electronics;a housing having at least one chamber at least partially surrounded by a housing wall,an at least one excitation coil, in particular cylindrical and / or designed as an air coil, which is placed in particular inside the chamber of the housing and is at least indirectly mechanically connected to the housing wall and is electrically connected to the measurement system electronics, andat least one sensor coil, in particular cylindrical and / or constructed as an air coil and / or identical in construction to the excitation coil, which is in particular placed inside the chamber of the housing and is positioned in particular remote from the excitation coil and is at least indirectly mechanically connected to the housing wall, which is electrically connected to the measurement system electronics; wherein the base module is configured to receive the vibronic module, in particular in the chamber, and thus to be connected mechanically fixedly, nevertheless re-detachably, in particular namely forming a measurement pickup of the vibration type or a vibronic measurement system and / or such that the vibronic module is locked in the base module or is not movable, wherein the vibronic module is configured to be installed in the base module such that its excitation magnet is placed inside the chamber, nevertheless is spaced apart from the housing wall, in particular namely is held in a predetermined and / or with the static installation position with respect to an orientation and / or a smallest distance from the excitation coil and / or such that an imaginary longitudinal axis of the excitation magnet and an imaginary longitudinal axis of the excitation coil are aligned with each other or run parallel to each other in extension.One embodiment provides that the measuring system electronics is in electrical connection with the first sensor and / or second sensor via a connection of the vibronic module.One configuration provides that the modular measurement system further comprises:a detector for reading out the identification factor of the vibronic module.The invention is explained in more detail with reference to the following figures. It shows: FIG. 1 : a part of a vibronic module, namely the measuring tube module, and a basic module; FIG. 2 : a first embodiment of the process connection of the vibronic module according to the invention; and FIG. 3 : a second embodiment of the process connection of the vibronic module according to the invention.Some aspects of the present disclosure will be described in more detail below with reference to the accompanying drawings. The figures show some, but not all, embodiments of the disclosure. Indeed, these disclosures may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Different embodiments, each of which shows individual details of the subject matter according to the invention, can be combined with one another to form new embodiments not shown in the figures. Like numbers refer to like elements throughout.The components depicted in the figures represent components that may or may not be present in various embodiments of the present disclosure described herein, such that the embodiments may include fewer or more components than those depicted in the figures without departing from the scope of the present disclosure. Some components may be omitted from one or more figures or shown in phantom to visualize the underlying components.The terms "in an exemplary embodiment," "some embodiments," "various embodiments," and the like generally mean that the particular feature, structure, or characteristic following the term may be included in at least one embodiment of the present disclosure and may be included in more than one embodiment of the present disclosure. Such terms need not necessarily refer to the same configuration.The word "example" or "exemplary" is used herein in the sense of "serving as an example or illustration.". Any implementation described herein as "exemplary" is not necessarily to be understood as preferred or advantageous over other implementations.When the description of the figures indicates that a component, component, or feature is included or "may be included (or some other such formulation), "preferably", "possibly", "typically", "optionally", or "for example" (or some other such formulation), a feature may have a property "could" or "should", it is not necessary that a particular component or feature be included or have the feature. Such components or features may be optionally included in some embodiments, but may also be excluded. A configuration not included in the figures can also include all features-insofar as they do not conflict-of the shown configurations.FIG. 1 shows a part of a vibronic module, namely the measuring tube module MM and a base module BM. No process connection is connected to the measuring tube module MM. This is designed as a separate component (see FIGS. 2 and 3 ) and is mechanically connected to the measuring tube module MM before the vibration module is used. Alternatively, the measuring tube module MM and the process connection can be integral. The measuring tube module MM comprises at least one, in particular metallic, measuring tube 31, 32 for guiding the material to be measured. In the embodiment of FIG. 1, the measuring tube module MM has two measuring tubes 31, 32 running essentially parallel to one another and bent in sections. The measuring tubes 31, 32 can take the form of a U or a V.At least one, in particular cylindrical, exciter magnet 22 is arranged on the at least one measuring tube 31, 32. This is configured to oscillate the at least one measuring tube 31, 32 when it is exposed to a time-variable magnetic field of an excitation coil 12 of the basic module BM. In the embodiment of FIG. 1, both measuring tubes 31, 32 each have an exciter magnet 22, which is arranged on the outer lateral surface of the corresponding measuring tube 31, 32 and which are attached on opposite sides of the measuring tubes 31, 32. The exciter magnet of the measuring tube 32 is concealed by the measuring tube 32 itself. Furthermore, at least one, in particular cylindrical, sensor magnet 24 is arranged on the at least one measuring tube 31, 32. In the case of an oscillating measuring tube 31, 32, the sensor magnet 24 generates a magnetic field which varies over time and which depends on the oscillation behavior of the at least one measuring tube 31, 32. In the embodiment of FIG. 1, the two measuring tubes 31, 32 each have two sensor magnets 24, 26 (partially covered by measuring tube 32), which are arranged on the outer lateral surface 31+, 32+ of the measuring tubes 31, 32. The exciter magnets 22 and likewise the sensor magnets 24, 26 can be attached directly to the outer lateral surface 31+, 32+ of the measuring tubes 31, 32, for example in a materially bonded manner, or indirectly via a connecting element which is itself connected to the corresponding measuring tube 31, 32 in a materially bonded, force-fit and / or form-fit manner. The connecting element can be, for example, a magnet cup which is not only configured to hold the corresponding magnet but also to protect it. Advantageously, the sensor magnets 24, 26 and the exciter magnets 22 are arranged on the outer lateral surface 31+ of the measuring tube 31, 32 in such a way that, when the vibronic module VM is arranged in the chamber 11*, a collision with the housing wall 11+ can be avoided. The sensor magnets 24, 26 are arranged offset in the direction of flow of the test substance through the measuring tube 31, 32. The exciter magnet 22 is always positioned in the flow direction of the measurement material in the measuring tube 31, 32 between the two sensor magnets 24, 26. In the depicted solution, the exciter magnet 22 is arranged in a subsection of the measuring tube 31, 32 in which the measuring tube 31, 32 is bent.The illustrated vibronic module VM does not have any coils, i.e. neither excitation coil nor sensor coil are part of the vibronic module VM, but only of the basic module. Thus, the vibronic module VM also does not have any electrical conductors (e.g. cables) for the exciter and / or sensor system, which would otherwise be necessary to electrically connect the coils to the measurement system electronics ME. Furthermore, no temperature sensor is arranged on one of the measuring tubes 31, 32. Thus, the measuring tube module MM itself also does not have any electrical conductors (e.g. cables) which would otherwise be necessary to electrically connect the temperature sensor to the measuring system electronics ME.Furthermore, the measuring tube module MM comprises a connecting body 50, which is mechanically connected (for example via a cohesive connection) to the at least one measuring tube 31, 32 and via which the at least one measuring tube 31, 32 can be mechanically connected to the base module BM. The connecting body 50 connects the two ends of the at least one measuring tube 31, 32 to one another. In the embodiment of FIG. 1, the connecting body 50 is planar. Furthermore, the connecting body 50 connects the ends of the measuring tube 31 and the ends of the measuring tube 32 to one another and to one another. The two measuring tubes 31, 32 extend through openings in the connecting body 50. The illustrated vibronic module VM also has four couplers 110 iwhich are configured to mechanically couple the two measuring tubes 31, 32 to one another in the coupling regions. The two couplers 110 a, 110 bconnect the two measuring tubes 31, 32 in the inlet region and the remaining two couplers connect the two measuring tubes 31, 32 in the outlet region.The base module BM has a measurement system electronics ME and a housing 11 with at least one chamber 11* at least partially surrounded by a housing wall 11+. The measurement system electronics ME are arranged separately in a measurement system electronics housing. Alternatively, the housing can have a measurement system electronics chamber in which the measurement system electronics ME is arranged separately from the chamber 11*. The measurement system electronics ME comprises electrical components (e.g. active components, passive components, discrete components and integrated components) which are arranged on at least one printed circuit board and are in effect with one another in such a way that they are suitable for operating the basic module BM. Furthermore, the measuring system electronics ME can comprise at least one microprocessor or microcontroller.Within the chamber 11*, at least one cylindrical excitation coil 12 is provided, which is designed as an air coil and is at least indirectly mechanically connected to the housing wall 11+ and is electrically connected to the measuring system electronics ME. The excitation coil 12 can be arranged in an opening in the housing wall 11+ as depicted, or can be positioned separated from the chamber 11* by the housing wall 11+. Alternatively, the excitation coil 12 can also be placed on the front surface of the housing wall 11+ directed toward the chamber 11*. In the embodiment of FIG. 1, the basic module BM has an excitation coil 12 (i.e. a total of two excitation coils) for each measuring tube 31, 32, which are arranged opposite one another on an excitation coil axis, which itself runs perpendicular to the longitudinal axis of the chamber 11*. The measuring system electronics ME is configured to operate the at least one excitation coil 12 with an operating signal which is designed such that the at least one excitation coil 12 generates a magnetic field which varies over time.Furthermore, at least one sensor coil 14, 16, in particular cylindrical and / or constructed as an air coil and / or identical in construction to the excitation coil 12, is arranged within the chamber 11* of the housing 11, which sensor coil is positioned in particular remote from the excitation coil 12 and is at least indirectly mechanically connected to the housing wall 11+, which sensor coil is electrically connected to the measurement system electronics ME. The at least one sensor coil 14, 16 may be disposed in an opening in the housing wall 11+ as depicted, or may be positioned separated from the chamber 11* by the housing wall 11+. Alternatively, the at least one sensor coil 14, 16 can also be placed on the front surface of the housing wall 11+ directed toward the chamber 11*. In the embodiment of FIG. 1, the basic module BM has two sensor coils 14, 16 (i.e. a total of four sensor coils) for each measuring tube 31, 32. Two of the four sensor coils 14, 16 are arranged on one side of the chamber 11 opposite the other two sensor coils. The measuring system electronics ME is configured to read out the voltages induced at the sensor coils 14, 16 and to determine a phase offset between the measuring signals provided at the individual sensor coils 14, 16.The base module M 1 is configured to receive the vibronic module VM or the measuring tube module, in particular in the chamber 11*, and thus to be connected mechanically firmly, nevertheless in a detachable manner, in particular, forming a measurement pickup of the vibration type or a vibronic measurement system and / or such that the vibronic module VM is locked in the base module BM or is not movable. For this purpose, the base module BM can have fastening means or a fastening device (not shown) as disclosed, for example, in DE 10 2020 114 519 A1. The vibronic module VM is configured to be installed in the base module BM in such a way that its excitation magnet 22 is placed inside the chamber, but is nevertheless spaced apart from the housing wall 11+, in particular namely held in a predetermined and / or static installation position with respect to an alignment and / or a smallest distance from the excitation coil 12 and / or in such a way that an imaginary longitudinal axis of the excitation magnet 22 and an imaginary longitudinal axis of the excitation coil 12 are aligned with one another or run parallel to one another in an extension. Furthermore, the vibronic module VM is configured to be installed in the base module BM such that its sensor magnet 24, 26 is placed inside the chamber, nevertheless is spaced apart from the housing wall 11+, in particular namely held in a predetermined and / or static installation position with respect to an alignment and / or a smallest distance from the sensor coil 14, 16 and / or such that an imaginary longitudinal axis of the sensor magnet 24, 26 and an imaginary longitudinal axis of the sensor coil 14, 16 are aligned with one another or run parallel to one another in extension. Furthermore, an optical unit 181 is part of the base module BM. The optical unit 181 can have a camera for detecting a coding and / or an infrared camera for determining a temperature of the vibronic module, in particular of the at least one measuring tube 31, 32. The coding is arranged in this case on the at least one measuring tube 31, 32.In the embodiment of FIG. 1, a modular measurement system is disclosed in which the vibronic module VM is introduced or removed into the chamber 11* in a direction perpendicular to its own longitudinal axis. Alternatively, the housing 11 can also be designed such that the vibronic module VM is to be inserted into the chamber 11* in the direction of its own longitudinal axis. Such a solution is taught, for example, in DE 10 2020 133 851 A1.Furthermore, the measuring tube module has an identifier ID which is attached to the outer lateral surface 31+ of the measuring tube 31. Alternatively, the identifier can also be arranged on the process connection (not shown, see FIGS. 2 and 3 ). The identifier ID can be, for example, an optical identifier, e.g. a bar code or QR code. Alternatively, the identifier can also be a transmitter which is configured to transmit the stored data wirelessly, for example via near field communication (NFC), to a receiver 120. Calibration data, such as a correction factor or a zero point, are stored in the identifier ID. Further information, such as e.g. sensor number, can likewise be stored.FIG. 2 shows a cross section through a first embodiment of the process connection PA of the vibronic module according to the invention. To form the vibronic module, the process connection PA is mechanically connected to a measuring tube module (not shown, see FIG. 1 ). The connection can be a positive, frictional and / or bonded connection. The measuring tube module itself has at least one measuring tube. In customer-side use, a hose system is attached to the process connection PA, in particular to the inlet region, via which the measurement substance is introduced into the vibronic module. The process connection PA comprises, in the inlet region, an inlet channel 101 for introducing the measurement substance into the at least one measuring tube. The inlet channel 101 is formed cylindrically in the inlet region with an imaginary longitudinal axis LA. From the inlet region, the measurement material is conducted into the at least one measuring tube or a measuring tube channel of the at least one measuring tube. The process connection PA itself is configured such that the inlet channel 101 is formed exclusively in a bent manner in a first subsection TA 1.The depicted process connection PA is designed such that it can be connected to a measuring tube module having a first measuring tube and a second measuring tube (measuring tubes not depicted; see FIG. 1, reference numerals 31, 32). The input channel 101 is divided in the first subsection TA 1 into two transition channels, which correspondingly transition into the first measuring tube and second measuring tube. The first measuring tube and the second measuring tube are curved and have a U- or V-shape. In addition, the output channel 102 is divided in the second subsection TA 2 into two transition channels, which likewise correspondingly transition into the first measuring tube and second measuring tube. The outlet channel 102 itself is cylindrical in the outlet region. The imaginary longitudinal axis runs through the inlet channel 101 and through the outlet channel 102. The process connection PA is a distributor piece which serves to divide the measurement substance to be guided between at least two measuring tubes.The depicted process connection PA has a first sensor S 1 for ascertaining a second measured variable of the measured substance, which is arranged in the first subsection TA 1. This has the advantage that the measurement material strikes the first sensor S 1 frontally when it is conducted through the inlet channel 101. Alternatively, the first sensor S 1 can also be arranged in the second subsection TA 2. In the depicted embodiment, the process connection PA in the first subsection TA 1 has a first opening 103 in the wall, which opening connects the inlet channel 101 to a first cavity 105. The first sensor S 1 is arranged in the cavity 105 itself. The first opening 103 is designed as an active pressure channel and prevents the first sensor S 1 from being damaged in the event of pressure surges. Alternatively, further openings can be provided in the wall. The first sensor S 1 itself can be present integrally in the process connection PA, i.e. the material of the process connection PA can be cast around the first sensor S 1 in the production process of the process connection PA (e.g. by injection molding) and is thus fastened in the process connection PA. The first sensor S 1 can also be enclosed by the wall of the process connection PA in such a way that only the measurement region of the first sensor S 1 is exposed.The first sensor S 1 can be a pressure measuring transducer for determining an absolute pressure in the measurement material, a temperature sensor for determining a measurement material temperature, a conductivity sensor for determining an electrical measurement material conductivity, a pH probe for determining a pH value of the measurement material or a turbidity sensor for determining a turbidity of the measurement material. Such sensors are usually integrated into the hose system as separate sensors. The integration of the sensors into the process connection PA simplifies the assembly.The process connection PA has a connection 110 for connecting the first sensor S 1 to a measurement system electronics of the modular measurement system. The connection 110 can be part of the first sensor S 1, or can be integrated remotely in the process connection PA. The integration of the terminal 110 into the process terminal body can be achieved by integrating the terminal 110 into the injection mold used for manufacturing the process terminal PA. By injection molding the connection 110 during the injection molding process, the connection is connected to the process connection body in a fixed position. If the connection 110 is arranged offset from the first sensor S 1, an electrical connection can be provided between the first sensor S 1 and the connection 110. The connection 110 can be, for example, an I2C interface.The depicted configuration shows a process connection PA which is formed in multiple parts. Thus, the process connection has an inlet connection, an outlet connection and a main body. A suitable variant of the process connection is disclosed in EP 4187210 A1, which is incorporated by reference in its entirety.Furthermore, the depicted embodiment has a support unit 120 which connects the first subsection TA 1 to the second subsection TA 2. The support unit 120 serves to compensate for too high a load acting on one subsection by transmitting the local force to the respective other subsection.FIG. 3 shows a cross section through a second embodiment of the process connection PA of the vibronic module according to the invention. To form the vibronic module, the process connection PA is mechanically connected to a measuring tube module (not shown, see FIG. 1 ). The connection can be a positive, frictional and / or bonded connection. The measuring tube module itself has at least one measuring tube. In customer-side use, a hose system is attached to the process connection PA, in particular to the inlet region, via which the measurement substance is introduced into the vibronic module. The process connection PA comprises, in the inlet region, an inlet channel 101 for introducing the measurement substance into the at least one measuring tube. The inlet channel 101 is formed cylindrically in the inlet region with an imaginary longitudinal axis LA. From the inlet region, the measurement material is conducted into the at least one measuring tube or a measuring tube channel of the at least one measuring tube. The process connection PA itself is configured such that the inlet channel 101 is formed exclusively in a bent manner in a first subsection TA 1.The depicted process connection PA is designed such that it can be connected to a measuring tube module having a first measuring tube and a second measuring tube (measuring tubes not depicted; see FIG. 1, reference numerals 31, 32). The input channel 101 is divided in the first subsection TA 1 into two transition channels, which correspondingly transition into the first measuring tube and second measuring tube. The first measuring tube and the second measuring tube are curved and have a U- or V-shape. In addition, the output channel 102 is divided in the second subsection TA 2 into two transition channels, which likewise correspondingly transition into the first measuring tube and second measuring tube. The outlet channel 102 itself is cylindrical in the outlet region. The imaginary longitudinal axis runs through the inlet channel 101 and through the outlet channel 102. The process connection PA is a distributor piece which serves to divide the measurement substance to be guided between at least two measuring tubes.The depicted process connection PA has a first sensor S 1 for ascertaining a second measured variable of the measured substance, which is arranged in the first subsection TA 1. This has the advantage that the measurement material strikes the first sensor S 1 frontally when it is conducted through the inlet channel 101. Alternatively, the first sensor S1 can also be arranged in the second subsection TA2-which is located in the outlet region. In the depicted embodiment, the process connection PA in the first subsection TA 1 has a first opening 103 in the wall, which opening connects the inlet channel 101 via a first intermediate channel 111 to a first cavity 105, which is located in a first chamber 131. The first intermediate channel 111 is configured or formed as an active pressure channel. The chamber 131 is connected to the inlet duct wall via a first connecting neck 141. The first sensor S 1 is arranged in the cavity 105 itself. The first opening 103 is designed as an active pressure channel and prevents the first sensor S 1 from being damaged in the event of pressure surges. Alternatively, further openings can be provided in the wall. The first sensor S 1 itself can be present integrally in the process connection PA, in particular in the first chamber 131, i.e. the first sensor S 1 is encapsulated with the material of the process connection PA in the production process of the process connection PA (e.g. by injection molding) and is thus fastened in the process connection PA, in particular in the chamber 131. The first sensor S 1 can also be enclosed by the wall of the process connection PA in such a way that only one measurement region of the first sensor S 1 is exposed.The first sensor S 1 can be a pressure measuring transducer for determining an absolute pressure in the measurement material, a temperature sensor for determining a measurement material temperature, a conductivity sensor for determining an electrical measurement material conductivity, a pH probe for determining a pH value of the measurement material or a turbidity sensor for determining a turbidity of the measurement material. Such sensors are usually integrated into the hose system as separate sensors. The integration of the sensors into the process connection PA simplifies the assembly.The depicted configuration shows a process connection PA which is formed in multiple parts. Thus, the process connection has an inlet connection, an outlet connection and a main body. A suitable variant of the process connection is disclosed in EP 4187210 A1, which is incorporated by reference in its entirety.Furthermore, the depicted embodiment has a support unit 120 which connects the first subsection TA 1 to the second subsection TA 2. The support unit 120 serves to compensate for too high a load acting on one subsection by transmitting the local force to the respective other subsection.The illustrated process connection PA has, in addition to the inlet channel 101, an outlet channel 102 for discharging the measurement substance from the at least one measuring tube 31, 32. This has a second subsection TA 2, in which it is formed in a curved manner. A second sensor S 2 is arranged in this second subsection TA 2. A second opening 104 is located in the exit channel wall. This merges into a second intermediate channel 112 of a second connecting neck 142, which connects the output channel 102 to a second chamber 132, in which the second sensor S 2 is arranged. The second intermediate channel 112 is designed or configured as an active pressure channel. The second chamber 132 has a second cavity 106 to which the second sensor S 2 is connected.The first sensor S 1 and / or the second sensor S 2 are selected from the following list: a temperature sensor, a pressure transducer, a conductivity sensor, a pH probe, and / or a turbidity sensor. In this case, the first sensor S 1 can differ from the second sensor S 2. Both sensors S 1, S 2 can each have separate connections 110 or a common connection, with which they can be electrically connected to the measurement system electronics via an electrical connector or a signal cable. The connection 110 can be, for example, an I2C interface.Alternatively, the first sensor S 1 and the second sensor S 2 can each be a pressure measuring transducer. Taken together, the pressure transducer of the first sensor S 1 and the pressure transducer of the second sensor S 2 can form a differential pressure transducer which is configured to determine a differential pressure between the pressure in the inlet channel and in the outlet channel.The first connecting neck 141, the second connecting neck 142, the first chamber 131, the second chamber 132 and the two sensors S 1, S 2 are in effect in such a way that a force acting on the subsection TA 1 by the flowing measurement substance is absorbed by the arrangement and thus more stable measurements are possible. Thus, the above arrangement supports the support unit 120.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedWO 2019 / 017891 A1

[0002] WO 2021 / 121867 A2

[0002] DE 102021105397

[0002] DE 102020133614

[0002] DE 102020132685

[0002] DE 102020133851

[0002] DE 102020133566

[0002] DE 102020132986

[0002] DE 102020132686

[0002] DE 102020131452

[0002] DE 102020132223

[0002] DE 102020127356

[0002] DE 102020114519

[0002] DE 102020112154

[0002] DE 10 2020 114 519 A1

[0036] DE 10 2020 133 851 A1

[0037] EP 4187210 A1 [0044, 0050]

Claims

Vibronic module (VM) of a modular measurement system, in particular of a modular Coriolis mass flow measuring device, for measuring a first measurement variable of a fluid measurement substance, comprising: - at least one measuring tube (31, 32) for guiding the measurement substance, - at least one, in particular cylindrical, exciter magnet (22), which is arranged on the measuring tube (31, 32) and is configured to bring the measuring tube (31, 32) into oscillations when it is exposed to a time-variable magnetic field of an exciter coil (12) of a base module (BM), - at least one, in particular cylindrical, sensor magnet (24), which is arranged on the measuring tube (31, 32), - a process connection (PA), which is connected to the at least one measuring tube (31, 32), wherein the process connection (PA) has an inlet channel (101) for introducing the measured substance into the at least one measuring tube (31, 32), wherein the process connection (PA) has a first subsection (TA1), in which the inlet channel (101) is configured to be exclusively curved, - a first sensor (S1) for ascertaining a second measured variable of the measured substance, wherein the first sensor (S2) is arranged in the first subsection (TA1).The vibronic module (VM) according to claim 1, wherein the process port (PA) in the first subsection (TA1) comprises a first opening (103) connecting the input channel (101) to a first cavity (105), wherein the first sensor (S1) is connected to the first cavity (105).Vibronic module (VM) according to claim 1 or 2, wherein the process connection (PA) comprises an output channel (102) for discharging the measurement substance from the at least one measuring tube (31, 32), wherein the process connection (PA) comprises a second subsection (TA2), in which the output channel (102) is formed bent, wherein a second sensor (S2) is arranged in the second subsection (TA2).The vibronic module (VM) according to claim 3, wherein the process port (PA) in the second subsection (TA2) comprises a second opening (104) connecting the output channel (102) to a second cavity (106), wherein the second sensor (S2) is connected to the second cavity (106).The vibronic module (VM) according to any one of the preceding claims, wherein the first sensor (S1) and / or the second sensor (S2) is selected from the following list: - a temperature sensor, - a pressure transducer, - a conductivity sensor, - a pH probe, - a turbidity sensor.The vibronic module (VM) according to any one of claims 3 to 5, wherein the second sensor (S2) is a pressure transducer, wherein the pressure transducer of the first sensor (S1) and the pressure transducer of the second sensor (S2) together form a differential pressure transducer.Vibronic module (VM) according to one of the preceding claims, wherein the at least one measuring tube (31, 32) comprises a first measuring tube (31) and a second measuring tube (32), wherein the input channel (101) in the first subsection (TA1) divides into two transition channels, which correspondingly transition into the first measuring tube (31) and second measuring tube (32), and / or wherein the output channel (102) in the second subsection (TA2) divides into two transition channels, which correspondingly transition into the first measuring tube (31) and second measuring tube (32).Vibronic module (VM) according to one of the preceding claims, further comprising: - an identifier (ID), wherein calibration data for the first sensor (S1) and / or second sensor are stored in the identifier (ID).The vibronic module (VM) according to any one of the preceding claims, further comprising: - a connector (110) for connecting the first sensor (S1) to a measurement system electronics (ME) of the modular measurement system, wherein the connector (110) is connected to the first sensor (S1) and / or second sensor (S2).Modular measurement system, in particular a Coriolis mass flow measuring device, for measuring a measurement variable of a fluid measurement substance, comprising: - a vibronic module (VM) according to one of the preceding claims; and - a base module (BM) which comprises: - a measurement system electronics (ME); a housing (11) having at least one chamber (11*) at least partially enclosed by a housing wall (11+), at least one, in particular cylindrical and / or air coil, excitation coil (12) placed in particular inside the chamber (11*) of the housing (11), which is at least indirectly mechanically connected to the housing wall (11+) and electrically connected to the measurement system electronics (ME), and at least one, in particular cylindrical and / or air coil, sensor coil (14) placed in particular inside the chamber (11*) of the housing (11) and / or structurally identical to the excitation coil (12), which sensor coil is positioned in particular remote from the excitation coil (12) and is at least indirectly mechanically connected to the housing wall (11+), which sensor coil is electrically connected to the measurement system electronics (ME); wherein the base module (BM) is configured to receive the vibronic module (VM), in particular in the chamber (11*), and to be connected thereto mechanically firmly, nevertheless in a detachable manner, in particular, forming a measurement pickup of the vibration type or a vibronic measurement system and / or such that the vibronic module (VM) is locked in the base module (BM) or is not movable, wherein the vibronic module (VM) is configured to be installed in the base module (BM) such that its exciter magnet (22) is placed inside the chamber, nevertheless is spaced apart from the housing wall (11+), This is because, in particular, it is held in a predetermined position and / or in the static installation position with respect to an alignment and / or a smallest distance from the excitation coil ( 12) and / or in such a way that an imaginary longitudinal axis of the excitation magnet and an imaginary longitudinal axis of the excitation coil ( 12) are aligned with one another or run parallel to one another in an extension.Modular measurement system according to claim 10, wherein the measurement system electronics (ME) are in electrical connection with the first sensor (S1) and / or second sensor (S2) via a connection (110) of the vibronic module (VM).Modular measurement system according to claim 10 or 11, further comprising: - a detector for reading out the identity factor of the vibronic module (VM).

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