Abstract: A capacitive button interface assembly (100) and a method for assembling the same, comprising a housing member (202), an electrode board (204) coupled to the housing member (202), one or more resilient members (212) positioned between the housing member (202) and the electrode board (204), one or more alignment members (216) coupled to the electrode board (204), operable to align the electrode board (204) with respect to the housing member (202), and a cover (804) coupled to the housing member (202) to apply a force on the electrode board (204).

Abstract: An electronics (100) configured to determine an input voltage to a galvanic isolation point of the electronics (100) is provided. The electronics (100) comprises an isolation transformer (120) configured to conduct a primary current (Ip) provided by an input voltage source (110), and provide a secondary voltage (Vs), the secondary voltage (Vs) being proportional to a primary voltage (Vp) induced by the primary current (Ip). The electronics (100) also comprises a peak detection circuit (130) coupled to the isolation transformer (120), the peak detection circuit (130) being configured to receive the secondary voltage (Vs) and, based on the secondary voltage (Vs), provide a signal that is proportional to the primary voltage (Vp).

Abstract: A manifold (400, 600, 700) with reduced vortex shedding, a vibrator) meter (5) including the same, and a method of manufacturing both are described. The manifold (400, 600, 700) comprises a first conduit section (202), a second conduit section (204), a splitter section (406, 606, 706) positioned between the first conduit section (202) and the second conduit section (204), the splitter section (406, 606, 706) including a first splitter face (408a, 608a, 708) facing the first conduit section (202), and a first protrusion (412a, 612a. 712), at least a portion of which is positioned on the first splitter face (408a, 608a, 708).

Abstract: A method of determining a corrected measured flow rate is provided. The method includes measuring a flow rate with a first flow meter, measuring a flow rate with a second flow meter, the second flow meter being fluidly coupled to the first flow meter in series, and correcting the measured flow rate of the first flow meter with the measured flow rate of the second flow meter.

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. 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 is configured to receive the indication of the detected electromotive force and an indication of process noise. The processor is configured to change a dead time parameter based on the indication of process noise and provide a process fluid flow output based on the indication of detected electromotive force and the dead time parameter.

Abstract: A method for proving or calibrating a first How meter integrated into a common platform with a second flow meter is provided. The first flow meter comprises a first driver, a first flow tube, and a first meter electronics, and the second flow meter comprises a second driver, a second flow tube, and a second meter electronics. The method includes configuring the first flow meter to vibrate the first flow tube with a first driver voltage at a first default driver voltage amplitude using the first meter electronics, and configuring the second flow meter to vibrate the second flow tube with a second driver voltage at a second standby driver voltage amplitude using the second meter electronics.

Abstract: A method of determining a zero offset of a vibratory meter at a process condition is provided. The method includes measuring a flow rate of a material in the vibratory meter, determining if the measured flow rate is less than a low flow threshold, measuring one or more operational parameters of the vibratory meter, determining if the one or more measured operational parameters of the vibratory meter are within a corresponding range, and if the measured flow rate is less than the low flow threshold and if the one or more measured operational parameters of the vibratory meter are within the corresponding range, then determining a zero offset of the vibratory meter based on the measured flow rate.

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 flowing process fluid in response to the magnetic field. Measurement circuitry is coupled to the pair of electrodes and is configured to provide an indication of the detected electromotive force. A processor is coupled to the measurement circuitry and configured to receive the indication of the detected electromotive force and determine a flow-related output based on the detected electromotive force. A diagnostics component is configured to analyze a number of successive parameters of the magnetic flowmeter in order to provide an indication of a detected entrained fluid.

Abstract: A method for temperature compensation of a test tone used in meter verification is provided. The method uses a drive amplifier to provide a drive signal to a drive circuit, wherein the drive circuit includes a drive mechanism in a meter assembly of a vibratory meter. The method measures a first maximum amplitude of the drive signal at a first temperature of the drive circuit, and measures a second maximum amplitude of the drive signal at a second temperature of the drive circuit. The method also determines a maximum amplitude-to-temperature relationship for the drive circuit based on the first maximum amplitude at the first temperature and the second maximum amplitude at the second temperature.

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 fluid measurement system (3) is provided having a Coriolis flowmeter (5) with a meter electronics (20) comprising a processing system (303) and a storage system (304). The Coriolis flowmeter (5) has a sensor assembly (10) comprising conduits (103A, 103B), wherein the sensor assembly (10) is in communication with meter electronics (20). The Coriolis flowmeter (5) has a plurality of pickoffs (105, 105?) affixed to the conduits (103 A, 103B), that are in communication with the meter electronics (20). The Coriolis flowmeter (5) has a driver (104) affixed to the conduits (103A, 103B) that is in communication with the meter electronics (20). A gyroscopic sensor is in communication with the meter electronics (20). At least one actuator (406X, 406 Y, 406Z, 412) is coupled to the Coriolis flowmeter (5). The meter electronics (20) is configured to measure a fluid flow of a process fluid under acceleration through the sensor assembly (10).

Abstract: A vortex flowmeter for measuring a flow rate of a process fluid, including a vortex generator arranged to generate vortices in a flow of the process fluid, a vortex sensor arranged to sense the vortices in the flow of the process fluid and responsively provide a sensor output related to the flow rate of the process fluid, measurement circuitry configured to receive the sensor output and provide a digital output, a memory configured to store measurements based upon the digital output; and diagnostic circuitry coupled to the memory arranged to detect instability in the flow of the process fluid based upon the measurements stored in the memory.

Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) configured to vibrate the flowmeter assembly (10) in a primary vibration mode using the first and second drivers (180L, 180R), determine first and second primary mode currents (230) of the first and second drivers (180L, 180R) for the primary vibration mode and determining first and second primary mode response voltages (231) generated by the first and second pickoff sensors (170L, 170R) for the primary vibration mode, generate a meter stiffness value (216) using the first and second primary mode currents (230) and the first and second primary mode response voltages (231), and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216).

Abstract: A meter electronics (20) for detecting a change in a vibratory meter (5) based on two or more baseline meter verifications is provided. The meter electronics (20) comprises an interface (201) configured to receive sensor signals (100) from a meter assembly (10) and provide information based on the sensor signals (100), and a processing system (202) communicatively coupled to the interface (201), said processing system (202) being configured to use the information to determine a first baseline meter verification value at a first set of process conditions, determine a second baseline meter verification value at a second set of process conditions, and determine a baseline meter verification value based on the first baseline meter verification value and the second baseline meter verification value.

Abstract: A sensor assembly (100, 300) for a vibratory conduit (130a, 330) is provided. The sensor assembly (100, 300) includes a sensor bracket (110, 310) having an outer surface (112, 312) substantially symmetric about an axis (S) and including a complementary portion (112c, 312c). The sensor assembly (100, 300) also includes a tube ring (120, 220, 320) having an outer surface (122, 222, 322) including a complementary portion (122c, 222c, 322c) affixed to the complementary portion (112c, 312c) of the sensor bracket (110, 310). The axis (S) of the sensor bracket (110, 310) is external of the vibratory conduit (130a, 330) when the tube ring (120, 220, 320) is affixed to the vibratory conduit (130a, 330).

Abstract: A method for determining an energy content of a hydrogen-rich gas mixture using a gas density meter (101) is provided. The method includes the steps of providing a vibratory gas density meter (101) and meter electronics (112) with the gas density meter (101). The meter electronics (112) communicate with at least one external input (116). The meter electronics (112) are configured to measure a density of the hydrogen-rich gas mixture, measure a specific gravity of the hydrogen-rich gas mixture, and derive a calorific value of the hydrogen-rich gas mixture using the derived specific gravity and a plurality of constant values.

Abstract: A flowmeter (5) is provided having a sensor assembly (10) connected to meter electronics (20), wherein the sensor assembly (10) comprises at least one driver (104) and at least one pickoff (105) and a variably modulated conduit (300) configured to change a flow area (304) therein.

Abstract: A vortex flowmeter includes a flow tube configured to receive a flow of process fluid in a first direction. A bluff body is disposed within the flow tube between a first end and a second end. The bluff body is configured to generate vortices in the flow of process fluid. A plurality of sensors are disposed within the bluff body configured to detect deformations within the bluff body resulting from the vortices acting on the bluff body.

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 vibratory sensor (5) includes a vibratory element (104), a receiver circuit (134) that receives a vibration signal from the vibratory element (104), and a drive circuit (138) that generates a drive signal. The drive circuit (138) includes a closed-loop drive (143) and an open-loop drive (147). The meter electronics (20) vibrates the vibratory element (104) commencing at a commanded first frequency and in an open-loop manner to achieve a first target phase difference ?1 for a fluid being characterized and determines a corresponding first frequency point ?1, vibrates the vibratory element (104) commencing at a commanded second frequency and in the open-loop manner to achieve a second target phase difference ?2 and determines a corresponding second frequency point ?2, and determines a viscosity of the fluid being characterized using the first frequency point ?1 and the second frequency point ?2.