Abstract: A measuring transducer includes: a measuring tube vibrating, at least at times, during operation and serving for conveying a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece on an inlet side and an outlet tube piece on an outlet side; a counteroscillator, which is affixed to the measuring tube on the inlet and outlet sides to form coupling zones; an cantilever coupled with the measuring tube on the inlet side; an cantilever coupled with the measuring tube on the outlet side; a sensor arrangement secured, at least in part, to the counteroscillator for registering oscillations at least of the measuring tube; an exciter mechanism secured, at least in part, to the counteroscillator for driving at least the measuring tube; a transducer housing affixed to the inlet tube piece and to the outlet tube piece; as well as connection lines, of which at least one is secured at least pointwise to the transducer housing and at least pointwise to an inner part of the measuring transducer

Abstract: To conduct a fluid, the transducer has a flow tube which in operation is vibrated by an excitation assembly and whose inlet-side and outlet-side vibrations are sensed by means of a sensor arrangement. To produce shear forces in the fluid, the flow tube is at least intermittently excited into torsional vibrations about a longitudinal flow-tube axis. The transducer further comprises a torsional vibration absorber which is fixed to the flow tube and which in operation covibrates with the torsionally vibrating flow tube, thus producing reactive torques which at least partially balance torques developed in the vibrating flow tube. One of the advantages of the transducer disclosed is that it is dynamically balanced to a large extent even in the face of variations in fluid density or viscosity.

Abstract: The measuring system is inserted into the course of a process line and serves for registering at least one measured variable of a medium flowing in the process line. The measuring system includes for such purpose a measuring transducer having a measuring tube serving for conveying medium being measured and a sensor arrangement, which has at least one sensor element reacting primarily to the measured variable to be registered, and which delivers by means of at least one sensor element at least one measurement signal influenced by the measured variable. Further, the measuring system includes a measuring electronics communicating with the measuring transducer and using the at least one measurement signal for producing, at least at times, at least one measured value instantaneously representing the measured variable.

Abstract: The invention relates to an apparatus for measuring volume- or mass-flow of a medium flowing through a measuring tube (2) in the direction of the measuring tube axis (3), and includes: A magnet system (6, 7) producing a magnetic field (B) passing through the measuring tube (2) essentially transversely to the measuring tube axis (3); at least one measuring electrode (5) coupled with the medium (11); a reference component (17) lying at a defined potential, wherein the reference component (17) is connected with a resistance (20); and a control/evaluation unit (8), which, on the basis of measurement voltage induced in the at least one measuring electrode (4, 5), delivers information concerning volume- or mass flow of the medium (11) in the measuring tube (2).

Abstract: The viscometer comprises a vibratory transducer with at least one flow tube for conducting a fluid to be measured and for producing friction forces acting in the fluid. To vibrate the at least one flow tube, an excitation assembly is provided, which in operation is traversed by an excitation current. To generate the excitation current and a viscosity value representing the viscosity of the fluid, the viscometer includes meter electronics which are connected to, and supplied with electric power from, a two-wire process control loop. The meter electronics feed a viscosity signal corresponding to the measured viscosity value into the two-wire process control loop. The viscometer is suitable for measuring a fluid flowing in a pipe, particularly in potentially explosive atmospheres.

Abstract: A measuring transducer including a measuring tube for conveying a fluid; a measuring electrode arrangement for registering electric voltages produced in the flowing fluid; as well as a magnetic field system situated externally on the measuring tube for producing a magnetic field at least partially passing through the measuring tube as well as the therein conveyed fluid during operation, for inducing an electric field in the flowing fluid, wherein the magnetic field system has at least one field coil, through which an electrical exciter current flows at least at times during operation. A coil holder is also including serving for holding the at least one field coil externally on the measuring tube, wherein the measuring tube and coil holder are connected joint-freely with one another, so that the coil holder is embodied as an integral component of the measuring tube.

Abstract: In a method for parametering a field device of process automation technology, wherein the field device is connected via a bus system with a control unit, parameter values are packaged in telegrams of cyclic services and transmitted to the field device whose parameter values are to be changed. No acyclic services are required for changing parameter values.

Abstract: The measuring transducer includes at least one measuring tube communicating with a line connected during operation for conveying a medium to be measured, and a support element oscillatably holding the at least one measuring tube. Additionally, it is provided that the support element contains at least two passageways, via which the at least one measuring tube communicates with the line, and that the at least one measuring tube is affixed, especially releasably, at at least one end to the support element by means of a screwed-fitting at one of the passageways. Alternatively or in supplementation thereof, it is further provided that the at least one measuring tube is, at least in part, made of cold-strengthened, for instance cold-stretched or autofrettaged, material.

Abstract: The invention relates to an apparatus for measuring volume- or mass-flow of a medium (11) flowing through a measuring tube (2) in the direction of the measuring tube axis (3), and includes: A magnet system (6, 7; 17), which produces a magnetic field (B) passing through the measuring tube (2) essentially transversely to the measuring tube axis (3); at least one measuring electrode (4; 5), which contacts the medium (11) in a defined surface region; and a control/evaluation unit (8), which provides information concerning volume- or mass flow of the medium (11) in the measuring tube (2) on the basis of a measurement voltage induced in the at least one measuring electrode (4, 5); wherein at least the medium-contacting surface region of the at least one measuring electrode (4, 5) is manufactured of a chemically inert and electrochemically and mechanically resistant material.

Abstract: A set-up for operating a process installation. The set-up includes a control station and at least one field device which determines or monitors at least one process variable. Each field device has a program memory in which a boot-loader software is persistently implemented. The boot-loader software enables communication of the field device with the control station. A transmission link is provided, via which the control station and the field device, or field devices communicate with one another during operation. Each field device transmits to the control station upon booting of the field device via the transmission link device-specific information. The control station transmits to the field device after receipt of the device-specific information, application- and/or device-specific, measurement/control/evaluation software, which is matched to a particular application of the field device and which the field device stores in a data memory associated with it.

Abstract: Field-device electronics including an electric current adjuster, through which a supply current flows is driven by a supply voltage provided by the external energy supply and adjusted by the current adjuster. Additionally, the field-device electronics includes an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit feeding the internal operating and evaluating circuit. Provided in the supply circuit is a first useful-voltage controller flowed-through, by a first component of the supply current and a second useful-voltage controller flowed through, at least at times, by a second current component of the supply current and providing in the field-device electronics a second internal, useful voltage. The second useful voltage controller is fed by the first useful voltage delivered by the first useful voltage controller and/or a secondary voltage drived from the first useful voltage.

Abstract: A measuring tube of the in-line measuring device is lined internally with a liner. The liner is made of a polyurethane produced using a catalyst that contains metal- organic compounds. The metals that are brought into the liner and remain there are chemically, especially atomically, bonded to carbon chains formed in the liner. The in-line measuring device is thus especially suited for measuring drinking water.

Abstract: An ultrasonic flow measuring device which provides a flow measuring device characterized by a low electrical current consumption and low power uptake. At least one component of high power uptake with a control/evaluation unit is provided, with the control/evaluation unit being designed such that the component of high power uptake is operated intermittently in a measuring phase and in an idle phase, with the component being activated in the measuring phase, while, in the idle phase, the component exhibits a reduced power uptake or is completely turned off.

Abstract: A measuring device includes: a measuring transducer accommodated, at least partially, in a housing, for registering at least one, measured variable; and a measuring device electronics electrically connected, at least at times, with the measuring transducer. The measuring device electronics includes at least one measurement channel for registering and further processing at least one primary signal generated by means of the measuring transducer, and an electrical current measuring circuit for registering measuring-device-internally flowing, electrical currents.

Abstract: In order to be able to couple as great a fraction as possible of ultrasonic measuring signals into a medium to be measured, an ultrasonic sensor is provided with a cup-shape and includes a housing and an oscillatable unit for producing the ultrasonic signals. The oscillatable unit is composed of a plurality of components and is so embodied that it has a node plane, which is oriented essentially perpendicularly to the radiating or receiving direction of the ultrasonic measuring signals. At least a portion of the outer surface of the oscillatable unit is connected with the housing in the region of the node plane of the oscillatable unit.

Abstract: A method serves to adjust a mechanical natural frequency of a hollow body which at least partly comprises a ductile material, in particular a pickup housing of a measurement pickup or a measurement pipe of a measurement pickup. A static external pressure of an atmosphere surrounding the hollow body and/or a static internal pressure prevailing in a lumen of the hollow body, the lumen being sealed off substantially in a pressuretight fashion, is varied in order to generate a pressure difference between the lumen and the atmosphere surrounding the hollow body. The pressure difference is adjusted to a value that causes the material of the hollow body to expand, and at least a proportion of the material of the hollow body is made to flow under the influence of the pressure difference for plastically deforming the material. The method can readily be integrated into already-established pressure tests for measurement pickups of the vibrational type.

Abstract: A magneto-inductive flow measuring device, including: A measuring tube, through which a medium flows essentially in a direction of a measuring tube axis; a magnet arrangement, which produces a magnetic field passing through the measuring tube and extending essentially perpendicularly to the measuring tube axis; a first measuring electrode and a second measuring electrode; wherein the measuring electrodes are positioned in the measuring tube on a connecting line, which is directed essentially perpendicularly to the measuring tube axis and to the magnetic field; and an evaluation/control unit, which ascertains, on the basis of a measurement voltage tapped on the measuring electrodes, the volume- and/or mass-flow of the medium through the measuring tube. In order to increase the measuring accuracy of the multi-parameter flow measuring device, the first measuring electrode is made of a first material and the second measuring electrode is made of a second material different from the first material.

Abstract: The measuring system is inserted into the course of a process line and serves for registering at least one measured variable of a medium flowing in the process line. The measuring system includes for such purpose a measuring transducer having a measuring tube serving for conveying medium being measured and a sensor arrangement, which has at least one sensor element reacting primarily to the measured variable to be registered, and which delivers by means of at least one sensor element at least one measurement signal influenced by the measured variable. Further, the measuring system includes a measuring electronics communicating with the measuring transducer and using the at least one measurement signal for producing, at least at times, at least one measured value instantaneously representing the measured variable.

Abstract: The measuring system is inserted into the course of a process line and serves for registering at least one measured variable of a medium flowing in the process line. The measuring system includes for such purpose a measuring transducer having a measuring tube serving for conveying medium being measured and a sensor arrangement, which has at least one sensor element reacting primarily to the measured variable to be registered, and which delivers by means of at least one sensor element at least one measurement signal influenced by the measured variable. Further, the measuring system includes a measuring electronics communicating with the measuring transducer and using the at least one measurement signal for producing, at least at times, at least one measured value instantaneously representing the measured variable.

Abstract: A method including: at least one oscillation measurement signal serving as primary signal of first class representing vibrations of a measuring tube, through which medium to be measured is momentarily flowing; and at least one oscillation measurement signal serving as primary signal of second class representing vibrations of at least one measuring tube, especially of the same measuring transducer, and orbiting around the axis of rotation of a carousel-type filling machine orbiting, but not containing flowing medium. Furthermore, based on both the primary signal of first class as well as also the primary signal of second class, at least one measured value, representing a measured variable, especially a mass flow rate and/or an integrated mass flow and/or a density of medium to be measured, is generated. Additionally, an apparatus is provided suited for reducing the method to practice and/or embodied as a carousel-type filling machine.