Abstract: A timing signal diagnostic system includes a chassis housing an input system that receives a timing signal, a timing system that receives the timing signal from the input system, an analog-to-digital converter system that receives the timing signal from the input system, and a processing system that is coupled to the timing system and the analog-to-digital converter system. The processing system uses the timing system to output reference time signals to the analog-to-digital converter system that are based on the timing signal, and uses the analog-to-digital converter system to sample the timing signal based on the reference time signals over a plurality of different timing signal cycles. Based on the sampling of the timing signal, the processing system generates a waveform for the timing signal, and provides a timing signal diagnostic result based on the waveform for the timing signal.

Abstract: A liquid leakage detector, LLD, configured to detect liquid leaking from a liquid containing/guiding element. The LLD comprises a pipe configured to receive liquid leaking from a predefined area of the liquid containing/guiding element and a sensor that detects liquid entering the pipe. The LLD comprises a first connection structure configured to be connected to and hereby bring the LLD into fluid communication with a first liquid transport structure of the liquid containing/guiding element, such that the first connection structure extends from and protrudes from the first liquid transport structure and a second connection structure configured to be connected to and hereby bring the LLD into fluid communication with a second liquid transport structure, such that the second connection structure extends from and protrudes from the second liquid transport structure. The LLD comprises an insulator arranged and configured to electrically separate the sensor from the liquid transport structures.

Abstract: The disclosure relates to a magnetically inductive flow meter for insertion into a pipeline and for determining a flow-rate-dependent measurement variable induced in the medium, comprising: a housing, a front body being arranged on an end face of the housing, which front body seals the end face of the housing; a measurement electrode arrangement for forming galvanic contact with the medium and for tapping an induced voltage in the flowing medium; a field system for generating a magnetic field that passes through the end face of the housing, the field system being arranged in the housing, the field system comprising a coil arrangement, the coil arrangement comprising a coil arrangement carrier for winding a coil wire, and the coil arrangement carrier and the front body being monolithic.

Abstract: A method for operating a magnetic-inductive flowmeter includes: detecting the noisy raw measurement signal having a first signal path by a signal sensor with high impedance by the pair of electrodes; passing the detected, noisy raw measurement signal on to a first signal processing device; processing the detected, noisy raw measurement signal by the signal processing device at least into a noise-removed flow measurement signal; outputting the noise-removed flow measurement signal via a working signal interface; detecting the detected, noisy raw measurement signal of the first signal path with a second signal path; and transmitting the detected, noisy raw measurement signal at least indirectly to the first signal processing device and/or a second signal processing device. The first signal processing device and/or the second signal processing device also carry out a frequency analysis of the detected, noisy raw measurement signal. A corresponding magnetic-inductive flowmeter is also disclosed.

Abstract: A fluid flow sensing and bubble detecting apparatus, comprising: —housing provided with a cavity configured to receive a tube through which conductive fluid flows; —a fluid flow sensing and bubble detecting electrical sensor assembly supported by the housing and configured to sense the flow of the fluid flowing through the tube and to detect bubbles in the fluid; and—an electrically grounded Electro-Magnetic Interference (EMI) shielding arranged between at least a part of the sensor assembly and the cavity such that the EMI shielding protects the sensor assembly from unwanted EMI emanating from a tube received within the cavity, which might otherwise cause the fluid flow sensing and bubble detecting apparatus to generate false bubble detection signals.

Abstract: The present invention relates to apparatus for monitoring fluid flow in a pipe using electromagnetic velocity tomography (EVT). The apparatus generates a magnetic field within a pipe and when electrically conducting fluid, such as an aqueous phase, flowing along the pipe passes through the magnetic field, flow induced voltages are generated by magnetic induction which are detected by electrodes. The signals at the electrodes can be processed to produce images of the flow velocity profile in the pipe. The flow may be a multiphase flow which comprises fluids, and may comprise a mixture of liquids, or one or more liquids in a mixture with solids and/or gases. This invention may provide a multiphase flow metering apparatus which has a number of applications, in particular within the oil and gas exploration and production industry.

Abstract: A flowmeter includes a control and evaluation unit, a sensor unit for capturing a primary variable, and a memory for storing data sets. The control and evaluation unit has a computing unit for determining the flow rate and/or for operating the sensor unit. The sensor unit is connected to the computing unit. During operation, the computing unit determines the flow rate from the primary variable, and determines the flow rate based on a data set and/or controls the sensor unit based on a data set. The data set includes a set of calibration values and/or a parameter for the operation of the sensor unit, and/or a parameter for determining the flow rate. The data set is assigned to a value of a state variable. The state variable is a medium parameter and/or a process parameter. The computing unit exchanges the data set depending on a change in the state variable.

Abstract: Systems and methods for enabling charged (ionized) air mass measurement for reliable air data computation onboard an aircraft. Ionic charge sensing may be used to derive air data having improved reliability. The systems and methods for ionic charge sensing employ an emitter electrode and two or more collector electrodes, which electrodes are disposed in proximity to the exterior skin of the aircraft and exposed to ambient air. The emitter electrode is positioned forward of the collector electrodes. The system further includes a solid-state ionic air data module that converts currents from the collector electrodes into air data parameter values. More specifically, the ionic air data module is configured to sense currents induced in the collector electrodes in response to corona discharge produced by the high-voltage emitter electrode.

Abstract: A hydraulic control device for liquid-conducting household appliances or systems comprises:—a hydraulic unit (11), having a hydraulic body (15) defining a duct (30) for the liquid, the duct (30) having an inlet (18i) and an outlet (31), the duct (30) being at least partially defined with an electrically insulating material, —an electrical valve arrangement (EV, SH) on the hydraulic body (15), which is electrically switchable between a closing position and an opening position, to prevent or enable, respectively, passage of the liquid between the inlet (180 and the outlet (31) of the duct (30), —a flow sensor on the hydraulic body (15).

Abstract: A control method for powering timing, performed by a controller, includes: performing a delay modulation procedure when triggered by a delay modulation command, wherein the delay modulation procedure includes: after a delay duration has passed, determining whether a number of output voltage values of a number of voltage converters reach a number of target levels respectively, wherein the target levels correspond to the output voltage values respectively. The method further includes: if any one of the output voltage values does not reach a corresponding one of the target levels, increasing the delay duration according to a first default interval and updating the delay duration, and performing the delay modulation procedure when triggered by the delay modulation command again; and if the output voltage values reach the target levels respectively, outputting a power good signal to a central processing unit, for the central processing unit to perform a booting procedure.

Abstract: The invention relates to a transponder system having at least one passive transponder, which has a resonant circuit having a variable resonant frequency, and having a readout device, wherein the readout device is designed to modify a frequency of the readout signal to the variable resonant frequency of the resonant circuit. The invention additionally relates to a method for readout of a passive transponder, which has a resonant circuit having a variable resonant frequency.

Abstract: A magnetic circuit device (1) for a magnetic-inductive flowmeter, having a coil (2) that has a coil core (3). The magnetic circuit device (1) enables an increased range of application, in that it can be flexibly adapted to the geometries of the respective magnetic flow meter due to the fact that the coil core (3) is designed to be flexible in such a way that the coil (2) can be bent from a first shape into a second shape. In addition, a method (100) for manufacturing such a magnetic circuit device (1) involves the steps of provisioning, winding, heating, connecting, bending and fixing of the coil.

Abstract: A field device (10) includes a sensor (11) that measures a physical quantity and outputs a measurement signal indicating a measured value, converters (12, 15, 16) that perform a predetermined conversion process on the measurement signal, and a processor (17) that outputs an output signal corresponding to the measurement signal subjected to the conversion process. The processor (17) starts verifying operational soundness of the converters (12, 15, 16) when the measurement signal subjected to the conversion process satisfies a predetermined condition, and outputs, while the operational soundness of the converters (12, 15, 16) is being verified, a signal corresponding to the measurement signal subjected to the conversion process and acquired immediately before the operational soundness of the converters (12, 15, 16) is verified, or a signal corresponding to the measurement signal indicating a predetermined measured value of the sensor (11), as the output signal.

Abstract: The present invention relates to a an electromagnetic flowmeter for measuring flow of fluid flowing in a conduit of the electromagnetic flowmeter, wherein the electromagnetic flowmeter comprises: a coil attached to the conduit and excited by an excitation unit to generate an electromagnetic field to interact with the fluid flowing in the conduit, a shield magnetically coupled with the coil, a pair of electrodes mounted on the conduit for measuring potential difference generated by the interaction of the electromagnetic field in the fluid; and wherein the at least one coil and the at least one shield is provided with an arrangement to displace the at least one of the at least one coil and the at least one shield to adjust the interaction of the electromagnetic field with the fluid.

Abstract: A magnetically inductive flowmeter for determining flow velocity and/or volume flow of a medium includes a measuring tube for conveying the medium, a magnetic field generating device and at least one electrode assembly, which is installed in the measuring tube in such a manner that it forms a galvanic contact with the medium, wherein the electrode assembly has an electrode body, wherein the electrode body is stylus shaped and has a front end surface, wherein a pressure measuring transducer is coupled with the electrode body, and wherein the pressure measuring transducer is contactable with the pressure acting on the front end surface.

Abstract: A magnetic insertion meter is disclosed herein. Disclosed insertion meters include in some examples, a sensor head tube cylinder having a textured front surface and at least two electrodes. Disclosed insertion meters include a textured front surface adapted to move the separation point of a fluid flowing over the sensor head tube towards the upstream surface as compared to the same sensor head tube without the textured front surface. Methods of measuring flow are also disclosed herein using example magnetic insertion meters.

Abstract: A method for determining conductivity of a medium includes: generating a signal with first and second frequencies; feeding the signal to first and second electrodes; determining a first voltage between the first and second electrodes, a first current through the medium for the first frequency, and a first impedance from the first voltage and first current; determining a second voltage between the first and second electrodes, a second current through the medium for the second frequency, and a second impedance from the second voltage and second current; determining and comparing phases of the first and second impedances; determining a medium resistance with a first formula when the first impedance phase is smaller than the second impedance phase; determining a medium resistance with a second formula when the first impedance phase is equal to or greater than the second impedance phase; and determining conductivity of the medium using the medium resistance.

Abstract: A tube adapter for a pipeline for conveying a medium includes a pipeline section having a tubular, first channel for inserting the pipeline section into the pipeline, and a tubular, second channel, which is arranged at a first predeterminable angle to the first channel and connected with the first channel. In a transition region between a wall of the first and a wall of the second channel, at least one hollow is present in a wall of the first and/or second channel. The present disclosure further includes an arrangement having a measuring device and a tube adapter according to the present disclosure as well as to a method for producing a tube adapter according to the present disclosure.

Abstract: A magnetic-inductive flowmeter includes a measuring tube for conveying a medium, a magnetic field generating coil and at least two measuring electrodes for sensing a measurement voltage inductively generated in the medium, including a conductive coating internally selectively applied in the measuring tube for forming a galvanic contacting of the medium.

Abstract: A magnetically inductive flow meter having a measuring tube with a wall, which includes an electrically insulating surface of a first material, and an electrode having an electrode axis, wherein the electrode has at least one electrode end surface for tapping off a measuring signal, in particular a measuring voltage, in a measuring medium, and has an electrode shank extending through the measuring tube wall, wherein the electrode has a stop projecting from the electrode shank with a stop surface to limit the displaceability of the electrode relative to the wall along the electrode axis, wherein the electrode has an electrically insulating coating in a region of the electrode shank and in a region of the stop surface, wherein the material of the electrically insulating coating has a Shore hardness which is equal to or lower than that of the first material.

Abstract: A method employs an unmanned aerial vehicle to carry an electromagnetic field measurement system to overcome environmental obstacles in measuring environmental electromagnetic field. The electromagnetic field measurement system senses the electromagnetic field of a spatial position in the environment to generate a sensing signal, then processes the sensing signal to remove the high-frequency electromagnetic interference generated by the operation of the unmanned aerial vehicle itself from the sensing signal, and converts the processed sensing signal into a digital signal. The digital signal is processed to extract at least one wave according to a fundamental frequency and a harmonic order, thereby removing the low-frequency electromagnetic interference from the digital signal. The extracted wave is employed in calculating an environmental electromagnetic field value of the spatial location.

Abstract: A detection device for a liquid-conducting appliance includes a hydraulic body (2) defining a duct (3) for a flow of a liquid, and a flow sensor on the hydraulic body (2), which includes an electromagnetic arrangement and a detection arrangement. The detection arrangement includes two electrode units (20) for detecting a potential difference induced by the flow of the liquid through an electromagnetic field generated by the electromagnetic arrangement. The hydraulic body (2) has two through openings on two opposite sides (3a, 3b) of the duct (3), inserted in each of which is a corresponding electrode unit (20), in such a way that the electrode units (20) are opposed to one another and in contact with the liquid. The device (1) includes sealing elements at each through opening, for preventing leakage of the liquid from the duct (3).

Abstract: An embodiment provides a method for measuring a flow of a fluid using a magnetic flow sensor, including: introducing a magnetic flow sensor into a fluid, wherein the fluid has a flow path, wherein the magnetic flow sensor comprises a coil and metallic field disrupter; positioning the magnetic flow sensor such that a distal end of the magnetic flow sensor is parallel with the flow path of the fluid; and measuring a flow of the fluid by measuring a voltage received from the magnetic flow sensor. Other aspects are described and claimed.

Abstract: A method for identifying a mechanical impedance of an electromagnetic load may include generating a waveform signal for driving an electromagnetic load and, during driving of the electromagnetic load by the waveform signal or a signal derived therefrom, receiving a current signal representative of a current associated with the electromagnetic load and a back electromotive force signal representative of a back electromotive force associated with the electromagnetic load. The method may also include implementing an adaptive filter to identify parameters of the mechanical impedance of the electromagnetic load, wherein an input of a coefficient control for adapting coefficients of the adaptive filter is a first signal derived from the back electromotive force signal and a target of the coefficient control for adapting coefficients of the adaptive filter is a second signal derived from the current signal.

Abstract: An electromagnetic measuring device includes a hydraulic body defining a duct for a flow of a liquid, and a flow sensor on the hydraulic body that includes an electromagnetic arrangement for generating an electromagnetic field through the duct in a direction transverse to the flow of the liquid, and detection arrangement including two electrical detection elements for detecting a potential difference induced by the flow of the liquid through the electromagnetic field. The detection elements are associated to one and the same face of a substrate, which extends on the outside of the duct in a position corresponding to a first side of the duct. The first side of the duct has two through openings, each of which is in a position corresponding to a respective electrical detection element.

Abstract: The present invention provides for a method for operating an electromagnetic flowmeter capable of being mounted on to a surface of a flow pipe for measuring a flow of fluid flowing in the flow pipe. The method comprising: exciting the coil to have electromagnetic interaction with the fluid in the flow pipe resulting in leakage current; providing a current to compensate for the resulting leakage current in the flow pipe by applying a potential difference to electrodes that are attached to a housing of the electromagnetic flowmeter and in contact with the flow pipe; detecting a condition wherein the resulting current flowing is within a threshold range; and determining a measure of flow in the flow pipe based on a value of the applied potential difference.

Abstract: Methods of inserting a sensor assembly into a flow pipe are disclosed. The methods may include fastening a preload nut into a hot tap housing, applying force to at least one handle connected to a stem to insert the sensor assembly into the flow pipe, and fastening a collar onto the stem. In one example, the collar is between the preload nut and the hot tap housing. And, in one example, the methods may include tightening the preload nut into the hot tap housing until the preload nut bottoms out at a hard stop.

Abstract: A household appliance includes the food preparation container, into which an ingredient for food preparation can be fed by the user. The household appliance includes at least one sensor for determining a feeding quantity of an ingredient as the ingredient is being fed into the food preparation container. A control device of the household appliance is configured to determine the feeding quantity based on a sensor signal of the at least one sensor such that a user can prepare particularly reliably and reproducibly a food that requires a uniform feed of an ingredient for a predetermined period of time.

Abstract: A magnetic insertion meter is disclosed herein. Disclosed insertion meters include in some examples, a sensor head tube cylinder having a textured front surface and at least two electrodes. Disclosed insertion meters include a textured front surface adapted to move the separation point of a fluid flowing over the sensor head tube towards the upstream surface as compared to the same sensor head tube without the textured front surface. Methods of measuring flow are also disclosed herein using example magnetic insertion meters.

Abstract: A magnetic flowmeter assembly is provided having a tubular body, having opposing open ends and defining a fluid flow path therebetween along a longitudinal axis (Ax). A pair of coil assemblies is coupled to the tubular body in an intermediate region thereof supported by an adjustable brace. A pair of measuring electrodes is attached to the tubular body in electrical communication with the fluid with the flow path and aligned along an axis (Ay) orthogonal to the longitudinal axis (Ax) and orthogonal to the axis (Az). Auxiliary electrodes are disposed upstream and downstream of the pair of measuring electrodes.

Abstract: A flow tube liner for a flow tube assembly of a magnetic flowmeter includes a cylindrical wall. The cylindrical wall includes an electrically insulative interior layer and a metallic exterior layer. The exterior layer is bonded to an exterior surface of the interior layer.

Abstract: An example system is configured for determining properties of a fluid in a conduit. The system includes a mass flow meter including a hollow conduit having an inlet, an outlet, and a wall. The conduit is for conducting the fluid. The system includes a driver coupled to the conduit. The driver is configured for inducing an oscillation in the conduit. The system includes two or more accelerometers coupled to the conduit. The two or more accelerometers are configured for measuring displacement of the conduit. The system includes an electrical permittivity sensor coupled to the conduit. The electrical permittivity sensor is configured for measuring electrical permittivity of the fluid.

Abstract: A field device according to one aspect of the present invention includes a plurality of types of sensors, at least one converter configured to acquire measured results of the plurality of types of sensors and to convert the measured results into measured information, the measured information being a physical quantity, and an information providing device configured to acquire and store the measured information from the at least one converter and to provide the stored measured information to an outside of the field device in a case that a predetermined condition is satisfied.

Abstract: Techniques for hot socket detection are disclosed. In an example, a meter includes a current transformer with a secondary bifilar winding. The meter is in proximity to a current coil. The secondary bifilar winding includes a first bifilar winding and a second bifilar winding. A start lead of the first bifilar winding is connected to a start lead of the second bifilar winding. The meter further includes a voltage source configured to generate a direct current (DC) voltage signal. The DC voltage signal is provided to a finish lead of the first bifilar winding. A first sense resistor is connected between a finish lead of the second bifilar winding and ground. A processing circuit receives a signal indicating a voltage across the first sense resistor and determines a temperature associated with the current coil. The processing circuit is further configured to detect a hot socket condition based on the temperature.

Abstract: A detection apparatus is a flow and temperature measuring device in the form of a tube having a channel positioned parallel to a coolant flow stream and contains a drogue that is firmly attached to a mount within the channel. The mount has a load detection apparatus firmly imbedded near the flow inlet to the tube. The drogue has at least neutral buoyancy in the fluid at the minimum fluid temperature of interest. A change in the buoyancy of the drogue as a function of temperature and a corresponding change in the strain detection apparatus output in the fluid is determined by a combination of simple physics and calibration measurements. The relationship between changes in strain detection apparatus signal output and flow-rate-induced forces applied to the drogue surface are also determined using a combination of simple physics and calibration measurements. A system and method are also described.

Abstract: A magnetically-inductive flow-measuring device, with a measuring tube for guiding an electrically-conductive medium, with a coil for generating a magnetic field that at least partially runs through the measuring tube and with a magnetic circuit device for guiding the magnetic field outside of the measuring tube, the magnetic circuit device has at least one coil core, a first yoke element, a second yoke element, a first pole piece and a second pole piece, the coil core is arranged inside the coil and the measuring tube is arranged between the first pole piece and the second pole piece. To provide a magnetically-inductive flow-measuring device with a magnetic circuit device, the magnetic circuit device is made from an at least partially bent sheet element or from multiple at least partially bent sheet elements.

Abstract: A flow rate assembly can include a housing having a measurement channel extending along the housing axis and through a portion of the housing between the first and second ends of the housing, an outer cup portion positioned at least partly within the housing, and a transducer positioned within the outer cup portion and sealed from fluid flow past the outer cup portion, the transducer having a width perpendicular to the housing axis and greater than the width of the measurement channel, the transducer configured to generate an ultrasonic signal and to direct the ultrasonic signal through the measurement channel.

Abstract: A sensor includes electrodes and two enclosure portions. The electrodes have a shape to match an outer periphery of a non-metallic parent pipe. The two enclosure portions are connected by a hinge to facilitate positioning around the outer periphery of the non-metallic parent pipe. A first portion of the two enclosure portions includes a cutout electrode for surrounding a cutout space. The cutout electrode is tied to a ground to shield against signals from the cutout space. The sensor generates a signal indicative of the presence or absence of a pipe inserted within an inner periphery of the non-metallic parent pipe based on a capacitance measurement and a threshold.

Abstract: The present disclosure relates to a magnetically inductive flow measuring device comprising: a measuring tube; a magnet system having a coil system, wherein the magnet system has a coil holder that holds the coil system; a pair of measuring electrodes; a field guide-back that passes around the measuring tube and comprises a first part and an equal second part each with a first planar end, a second planar end and a central region, wherein the first part and second part are adapted to be brought together via their ends, wherein each of the first ends and the second ends has an engagement opening and an engagement means, wherein the engagement means of each end is adapted upon bringing together of the equal parts to engage in an engagement opening of an end of the other equal part.

Abstract: A magnetic flowmeter includes at least one coil configured to generate a magnetic field within a process fluid flow. A pair of electrodes is configured to detect an electromotive force within the process fluid flow in response to the magnetic field. Coil drive circuitry is coupled to the at least one coil and is configured to cause the at least one coil to generate the magnetic field. Measurement circuitry is operably coupled to the pair of electrodes and configured to provide an indication of the detected electromotive force. A processor is coupled to the measurement circuitry and the coil drive circuitry. The processor is configured to cause the coil drive circuitry to operate at one of a plurality of coil drive frequencies. The processor is also configured to obtain a plurality of measurement samples while process fluid is flowing and while the coil drive circuitry is operating at a first frequency.

Abstract: A leak detection system configured to be attached on an exterior of a conduit to detect a leak in a non-pressurized conduit. The leak detection system includes a first fluid section and a second fluid section that each includes the same or similar fluid volumes. The first fluid section includes a testing chamber configured be attached to the conduit. With the testing chamber positioned on the conduit, a pressure sensor connected to each of the first and second fluid sections senses a difference in the fluid pressure between the first and second fluid sections to detect a leak.

Abstract: A magnetic-inductive flow measuring device includes measuring electrodes, each having an end face including a planar annular edge region surrounding a center region, each annular edge region configured to seat against a sealing surface of an inner mold such that the center region of the end face does not contact the inner mold during the injection molding of a measuring tube body. A method for manufacturing the magnetic-inductive flow measuring device includes steps of providing and positioning an inner mold, an outer mold and two measuring electrodes, where each annular edge region of each measuring electrode seats against its corresponding sealing surface of the inner mold such that the center region of the measuring electrode protrudes into the corresponding recess of the inner mold without contacting the inner mold.

Abstract: A liquid-contact portion exposed into a measurement tube is provided, and a main body portion formed by covering a base material with a conductor is provided. A terminal portion electrically connected to the conductor is provided. The main body portion includes a small diameter portion having a cylindrical shape and being inserted at one end thereof into an electrode insertion hole of the measurement tube, and the one end corresponds to the liquid-contact portion; and a large diameter portion having a disc shape extending outward from the other end of the small diameter portion in a radial direction. The large diameter portion includes an annular groove opened toward inside a measurement, tube, and cutaway's extending outward from the annular groove in the radial direction and opening to an outer peripheral surface of the large diameter portion.

Abstract: The present invention relates to magnetic flowmeters. More particularly, the present invention relates to a magnetic flowmeter specifically designed for the hydraulic fracturing industry that is capable of withstanding a variety of corrosive slurries, acids, bases, and solvents including a liner including partially stabilized magnesium zirconia (MgPSZ).

Abstract: A brace bar (140, 140?, 140a, 140a?) configured to be removably attachable to vibratory conduits (130a, 130b) of a flowmeter (5) is provided. The attachment comprises a mechanical attachment, wherein the brace bar (140, 140?, 140a, 140a?) is movable about the vibratory conduits (130a, 130b). A component (14, 14a, 16, 16?, 16a, 16a?) of the flowmeter (5) sensor assembly (10) that is removably attachable to vibratory conduits (130a, 130b) is also provided. The attachment comprises a mechanical attachment, comprising: a coil portion (164, 170) and a magnet portion (165, 171), wherein the component (14, 14a, 16, 16?, 16a, 16a?) is movable about the vibratory conduits (130a, 130b). The brace bar is repositionable, such that heat stress is minimized, while repair and tuning of the sensor assembly is simplified.

Abstract: A linearity compensation circuit is disclosed for improving the linearity of a sensing signal. The linearity compensation circuit may include a compensator that is capable of receiving a sensing signal from a sensor and generating a compensation signal based on the sensing signal. The linearity compensation circuit may also include an output circuit that is capable of combining the compensation signal and the sensing signal to generate a compensated signal that exhibits an improved linearity. Also disclosed is a sensing apparatus which includes a sensor and the linearity compensation circuit. The sensing apparatus may thus be able to generate a sensing signal that is linear over a wider dynamic range.

Abstract: A magneto-inductive flow measuring device is disclosed that includes a measuring tube with a measuring tube axis and two measuring electrodes arranged diametrally opposite one another on the measuring tube and from which a signal is tapped for ascertaining a flow. The flow measuring device includes four other electrodes in pairs arranged diametrally opposite one another on the measuring tube, forming second and third electrode axes that intersect the measuring tube axis, where the two electrode axes are arranged offset from a parallel projection of the first electrode axis onto the second cross-sectional plane by a clockwise or counterclockwise angular measure. The flow measuring device further includes an evaluation unit for detecting a flow profile based on measurement signals tapped from the electrodes of the two electrode axes. A further aspect of the disclosure includes a method for compensating a flow profile related measurement error in a flow measurement.

Abstract: A magnetic flowmeter includes flowmeter electronics and a flowtube configured to receive process fluid flow. The flowtube has a plurality of electrodes disposed proximate an inner diameter to contact process fluid. At least one ultrasonic transducer is disposed within the flowtube and is configured to couple ultrasonic energy to the process fluid proximate at least one electrode. Flowmeter electronics are coupled to the plurality of electrodes and the at least one ultrasonic transducer and are configured to detect at least partial electrode coating or buildup and responsively generate a cleaning cycle within the flowtube using the at least one ultrasonic transducer.

Abstract: A measuring device has a measuring tube to be traversed by a medium in a throughflow direction as well as a magneto-inductive measuring device and an acoustic measuring device, which each are arranged on the measuring tube. The magneto-inductive measuring device comprises at least one coil that generates a magnetic field extending through the interior of the measuring tube as well as two electrodes arranged on the measuring tube, which can pick up a measurement signal.

Abstract: A magnetic-inductive flowmeter and method in which a control circuit and/or evaluation circuit is designed/operated in such a manner that a measuring voltage tapped or tappable by measuring electrodes for flow measurement are evaluated only during a flow measuring time that is less than half the duration of the period of generation of the magnetic field and that the control circuit is designed/operated in such a manner that the measuring electrodes are impinged with conductivity measuring signals only during a conductivity measuring time that lies outside the flow measuring time.