Abstract: Waste water assessment apparatus, a method and a computer program are provided. The waste water assessment apparatus comprises: transceiver circuitry configured to transmit a microwave signal and to receive one or more reflections of the microwave signal; and processing circuitry configured to process the one or more reflections of the microwave signal to determine one or more characteristics of waste water flowing through a conduit.

Abstract: A surgical system having a console that receives a cassette with a rigid fluid channel formed into a rigid plastic component or housing. The housing serves as a substrate for an elastomeric acoustic coupling that can be formed on the housing outside of the fluid channel. The acoustic transducer is elastically mounted within the console, such as on a spring, so as to provide a relatively constant force between the transducer and the acoustic coupling when the cassette is installed in the console.

Abstract: An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a single sheet of piezoelectric film material wrapped around at least a portion of the pipe and an array of sensors disposed at different locations on the film material. Each of the sensors provides a signal indicative of pressure within the pipe at a corresponding axial and/or circumferential location of the pipe. The sensors are selectively configurable to provide the pressure signals. The signals are processed to determine the parameter. The array of sensors is configurable in response to different criteria. The criteria includes at least one of the parameter of the fluid to be output, an input signal specifying sensors to be selected, a predetermined configuration based on the parameter to be determined, and in response to a previously determined parameter of the fluid.

Abstract: An ultrasonic flowmeter apparatus, which can be mounted on a conduit flowing a fluid whose flow rate is to be measured, has two housing halves coupled swingably about an axis. Free ends of the housing halves include a clamp mechanism for closing and locking the halves in position. The halves have formed therein grooves 1a and 2a, respectively, and a pair of ultrasonic wave transmission and reception elements are provided on an inner wall of the groove 1a. When the conduit is clamped between the grooves, the conduit is urged against the inner walls and deformed into a substantially square cross sectional configuration. An ultrasonic wave beam B is projected from one of the elements into a fluid passing through the conduit, the beam is reflected by an opposite surface of the conduit urged against the groove 2a, and the reflected beam is received by the other element.

Abstract: The present invention discloses a non invasive and mobile device to detect and quantify water consumption in domestic or public water systems, wherein detection is achieved by a piezoelectric device.

Abstract: A pair of electro-acoustic transducers, one functioning as a speaker and the other functioning as a microphone, are operatively coupled to a reference which in turn is in communication with a fluid. A regenerative frequency filtering loop is operatively coupled between the transducers and functions to apply amplified signal to the speaker and produce an acoustic signal which propagates through the medium. The acoustic signal is sensed by the microphone and coupled to the regenerative loop input. For certain frequencies, the spacing between the transducers together with the speed of propagation of sound through the fluid combine with the frequency filtering of the regenerative loop to cause the loop to regenerate at a frequency indicative of the relative speed between the reference and the fluid.

Abstract: [Problem] A flow rate measuring device in which guided waves are used, wherein the frequency of ultrasound is optimized; and energy injected from ultrasound transmission/reception elements is increased and the flow velocity sensitivity is raised; whereby the measurement accuracy is improved. [Solution] A frequency of an isolated peak of group velocities of guided waves, from among a plurality of peaks of group velocities of guided waves, and a resonance frequency of the ultrasound transmission element/reception element are set to agree; and the semi-amplitude of a power spectrum of ultrasound excited/received by the ultrasound transmission element/reception element is set to a value that does not overlap with another peak of group velocities.

Abstract: An ultrasonic flowmeter which can enhance measurement accuracy is provided, including ultrasonic transducers; a propagation time measurement block for measuring a propagation time elapsed before an ultrasonic wave transmitted from the ultrasonic transducer arrives at the ultrasonic transducer; a control block for determining a flow volume from the propagation time; correction calculation means for calculating a correction value based on characteristics of the ultrasonic transducers, a delay between transmission of an ultrasonic wave from the ultrasonic transducer and commencement of measurement of a propagation time, a delay between arrival of the ultrasonic wave at the receiving-side ultrasonic transducer and detection of the ultrasonic wave, and a difference between the measured and a true propagation times; and correction value selection means for selecting a correction value; and a propagation time correction block for correcting a propagation time.

Abstract: Apparatus configured detect a physical quantity, for example a density, of a flowing fluid, the apparatus including: a sensor body (2) configured to extend into the flowing fluid, the sensor body comprising a fiber Bragg grating (FBG) of a fiber Bragg grating sensor (3, 7, FBG), for generating a detector signal relating to vibration of at least part (2B) of the sensor body (2); and a processing unit, configured to process the detector signal, and to determine the physical quantity based on detected vibration at a mechanical eigenfrequency of the flexible part (2B) of the sensor body (2).

Abstract: In an ultrasonic flow meter device of the present invention, a compressive conductive fastener member including conductive parts is retained between a casing having a fluid passage in which a fluid which is a measurement target flows; ultrasonic transmitters/receivers mounted to the casing, and a control printed board disposed to face the ultrasonic transmitters/receivers, and in this state, the control printed board is fastened. Thereby, the ultrasonic transmitters/receivers are electrically connected to the control printed board without the use of lead wires. A cost increase can be suppressed, and an influence of an outside noise can be mitigated because of omission of the lead wires. Therefore, reliability of the ultrasonic transmitters/receivers can be improved.

Abstract: An example method for detecting an analyte in a sample of a bodily fluid includes the steps of exposing the bodily fluid sample to electromagnetic energy to cause a thermoelastic expansion in the analyte, and detecting a photoacoustic signal in the sample that results from the thermoelastic expansion.

Abstract: An ultrasonic transducer for use in a fluid medium is proposed. The ultrasonic transducer includes at least one transducer core which has at least one acoustic/electric transducer element, in particular a piezoelectric transducer element. The ultrasonic transducer furthermore includes at least one housing, at least one housing opening being at least partially sealed against the fluid medium with the aid of a sealing film which is connected to the transducer core. The sealing film has at least one expansion deformation which is configured to permit a relative movement between the transducer core and the housing.

Abstract: A vibratory flow meter (100) for correcting for entrained gas in a flow material is provided. The vibratory flow meter (100) comprises a flow meter assembly (10) configured to generate a vibrational response for the flow material, a bubble size sensor (50) configured to generate a bubble measurement signal for the flow material, and meter electronics (20) coupled to the flow meter assembly (10) and to the bubble size sensor (50). The meter electronics (20) is configured to receive the vibrational response and the bubble measurement signal, determine a bubble size of bubbles in the flow material using at least the bubble measurement signal, determine one or more flow characteristics of the flow material using at least the vibrational response and the bubble size.

Abstract: A flow meter is disclosed having a meter body that is enveloped by a compliant shroud that protects transducers and transducer cables. The shroud forms a chamber between the shroud and meter body, and includes a releasable portion to allow access into the chamber.

Abstract: The unique characteristic sounds produced by urine as it impacts the surface of the water in a toilet are used to monitor men's urinary flow pattern and its dynamics. By detecting the intensity at selected acoustic frequencies, it is possible to accurately and precisely measure the urine flow rate. Techniques for analyzing urine flow and its dynamics employ sound levels that are detected at two or more distinct frequency regions or channels of the sound spectrum. One frequency region that is designated the measurement channel is where the sound measurement intensity strongly depends on urine flow levels. Another frequency region that is designated the reference channel is where the sound measurement intensity is not dependent on urine flow levels. By using a combination of measurements from the measurement channel and the reference channel, the urine-flow monitoring apparatus compensates for variations in operating conditions and other factors during use.

Abstract: The present invention relates to a method for examining a medium (19), comprising the following steps of: transmitting a measurement input signal (4) comprising at least one measurement frequency, wherein the measurement input signal (4) is coupled into a medium (19); receiving a measurement output signal (9) emerging from the medium (9); transmitting a counter measurement input signal (13) comprising at least one counter measurement frequency, wherein the counter measurement frequency essentially corresponds to the measurement frequency, and wherein the counter measurement input signal (13) is coupled into the medium (19) simultaneously and in an opposite direction to the measurement input signal (4); receiving a counter measurement output signal (16) emerging from the medium (19); calculating a Doppler correction by comparing the counter measurement input signal (13) with the counter measurement output signal (16) in terms of the counter measurement frequency and by comparing the measurement input signal (4

Abstract: A meter electronics (20) for generating a drive signal for a vibratory flowmeter (5) is provided according to an embodiment of the invention. The meter electronics includes an interface (201) and a processing system (203). The processing system is configured to receive the sensor signal (201) through the interface, phase-shift the sensor signal (210) substantially 90 degrees to create a phase-shifted sensor signal, determine a phase shift value from a frequency response of the vibratory flowmeter, and combine the phase shift value with the sensor signal (201) and the phase-shifted sensor signal in order to generate a drive signal phase (213). The processing system is further configured to determine a sensor signal amplitude (214) from the sensor signal (210) and the phase-shifted sensor signal, and generate a drive signal amplitude (215) based on the sensor signal amplitude (214), wherein the drive signal phase (213) is substantially identical to a sensor signal phase (212).

Abstract: The present invention is intended to make it possible to set security functions as necessary depending on usage environment, etc. and to improve the security functions; a function setting section 1116 sets security function information received from the outside via a communication line as security functions regarding the user of gas. According to the set security function, in the case that the operation conditions of the security function are satisfied, a monitoring section 112 detects a problem during the use of gas and outputs a security signal to a control section 114. Based on the security signal from the monitoring section 112, the control section 114 shuts off the supply of gas in the case that a phenomenon satisfying an operation condition of the set function having been set has occurred.

Abstract: A system and method for calibrating an ultrasonic flow meter. In one embodiment, a method includes disposing a fluid circulating device within a flow meter. Fluid is circulated in the flow meter by operation of the fluid circulating device. An acoustic signal transit time within the flow meter is measured during the circulating. Based on the measuring, a portion of the acoustic signal transit time caused by latency induced by components of the flow meter is determined.

Abstract: A method and apparatus is disclosed that guides a user through a sequence of steps that will allow the user to complete a predefined task using the flow meter. The steps include: selecting a predefined task, displaying a sequence of steps that directs the user through a process for using the Coriolis flow meter to complete the predefined task, and operating the Coriolis flow meter in response to the sequence of steps to complete the predefined task.

Abstract: A measuring tube, a measuring system and a method for determining and/or monitoring flow through a measuring tube, comprising a measuring tube, on which ultrasonic transducers are releasably placeable. The ultrasonic transducers transmit and/or receive ultrasonic signals, which pass through the measuring tube approximately coaxially to the measuring tube axis.

Abstract: An ultrasonic flow meter for measuring the flow of a fluid through a pipeline. In some embodiments, the ultrasonic flow meter includes a spool piece, a transducer assembly, and a port cover assembly. The spool piece has a throughbore and a transducer port extending between the throughbore and an outer surface of the spool piece. The transducer assembly is disposed within the transducer port and includes a transformer, a piezoelectric element, and an electrical coupling therebetween. The port cover assembly is coupled to the transducer assembly. The port cover assembly receives a cable coupled to the transducer assembly and is spring-loaded to bias the port cover assembly toward the transducer assembly to resist the cable from being electrically uncoupled from the transducer assembly.

Abstract: In an embodiment, an ultrasonic flow meter comprises a spool piece including a throughbore and a transducer port extending from the outer surface of the spool piece to the throughbore. In addition, the ultrasonic flow meter comprises a transducer assembly disposed in the transducer port. The transducer assembly has a central axis and comprises a transducer holder having a first end proximal the throughbore of the spool piece, and a second end distal the throughbore of the spool piece. Further, the transducer assembly comprises a piezoelectric capsule including a piezoelectric element. The piezoelectric capsule is coupled to the transducer holder and extends generally axially from the first end of the transducer holder. Still further, the transducer assembly comprises a transformer capsule including a transformer. The transformer capsule is coupled to the transducer holder and is axially spaced apart from the piezoelectric capsule.

Abstract: A transducer assembly for an ultrasonic flow meter comprises a piezoelectric capsule. In an embodiment, the piezoelectric capsule includes a housing having a central axis, a first end, a second end opposite the first end, and a first inner chamber extending axially from the first end. In addition, the piezoelectric capsule includes a piezoelectric element disposed in the first inner chamber. Further, the piezoelectric element includes a plurality of spacers disposed in the first inner chamber between the piezoelectric element and the housing.

Abstract: Ultrasonic flow meter transducer assembly. At least one some of the illustrative embodiment are systems including: a spool piece that defines an exterior surface, a central passage, and a transducer port extending from the exterior surface to the central passage; and a transducer assembly coupled to the transducer port.

Abstract: An ultrasonic measurement device (10) for determining a flow velocity of a fluid in a conduit comprises a pipe section (12) having a central longitudinal axis (22) and a cross section (24) with a radius (R), the central longitudinal axis (22) defining a horizontal reference plane (26); at least a first two-path measurement system with a first path (30a) and a second path (30b) defined by a first pair of ultrasonic transducers (32) and a second pair of ultrasonic transducers (32) mounted to the wall of the pipe section (12), the ultrasonic transducers (32) of each path (30a-b) opposing each other at the ends of their path (30a-b), each path (30a-b) oriented parallel to the horizontal reference plane (26) with a distance to the horizontal reference plane (26) while having a component transverse to the central longitudinal axis (22); first evaluation means (38) to determine a first flow velocity value from the first path (30a) by comparing the ultrasonic transit times along the first path (30a) with and again

Abstract: A device for measuring the physical characteristics of a flow within a pipe is disclosed. In one exemplary embodiment, the device comprises a plug attached to two or more strut assemblies, each strut assembly comprising a forward strut, a rearward strut, and a skid having an inner surface that faces the plug, and one or more sensors located on the inner surface of the skid.

Abstract: An ultrasonic flow meter for measuring the flow of a fluid through a pipeline comprises a spool piece including a throughbore and a transducer port. The transducer port extends along a central axis from an open end at the throughbore to a closed end distal the throughbore. In addition, the flow meter comprises an acoustic transducer disposed in the transducer port. The transducer includes a piezoelectric element. Further, the flow meter comprises a drain port in fluid communication with the transducer port. The drain port is axially positioned between the open end and the closed end of the transducer port. Still further, the flow meter comprises a drain conduit having an inlet end coupled to the drain port and an outlet end opposite the inlet end. The drain port is configured to drain a liquid from the transducer port into the inlet end of the drain conduit.

Abstract: The invention relates to a method of operating an ultrasonic gas flow meter, the ultrasonic gas flow meter including at least one signal evaluation unit, at least one memory, a piping through which gas can flow, at least one pair of ultrasonic transducers disposed on opposite sides of the piping and separated by a path inclined to a flow direction of the piping, wherein each ultrasonic transducer is connected to an electronic circuit to selectively act as an ultrasonic transmitter and an ultrasonic receiver, wherein the ultrasonic gas flow meter is adapted to detect a flow velocity of the gas flowing through the piping on the basis of differences between propagation times of ultrasonic signals transmitted and received between each pair of transducers and propagating in opposite directions along the path, wherein the method includes a test procedure for verifying the operation of electronics associated with the ultrasonic gas flow meter wherein, when the test procedure is activated, test signals are triggered

Abstract: An ultrasonic flow meter for measuring the flow of a fluid through a pipeline. In an embodiment, the flow meter comprises a spool piece including a throughbore and a transducer port extending to the throughbore. In addition, the flow meter comprises a transducer assembly disposed in the transducer port. The transducer assembly comprises a piezoelectric capsule including a piezoelectric element. Further, the transducer assembly comprises a transformer capsule including a transformer. The transformer capsule is coupled to the piezoelectric capsule. Still further, the transducer assembly comprises a receptacle capsule coupled to the transformer capsule. The receptacle capsule includes a receptacle housing and a receptacle coaxially disposed within the receptacle housing. The receptacle is electrically coupled to the transformer. Moreover, the receptacle is rotatable relative to the receptacle housing between a first position and a second position.

Abstract: A flowmeter for detecting at least one property of a fluid medium flowing through a flow tube, in particular a flow property, is described. The flowmeter has at least one ultrasonic sensor for detecting at least one first flow property of the fluid medium. In addition, the flowmeter has at least one differential pressure sensor for detecting at least one second flow property of the fluid medium.

Abstract: The unique characteristic sounds produced by urine as it impacts the surface of the water in a toilet are used to monitor men's urinary flow pattern and its dynamics. By detecting the intensity at selected acoustic frequencies, it is possible to accurately and precisely measure the urine flow rate. Techniques for analyzing urine flow and its dynamics employ sound levels that are detected at two or more distinct frequency regions or channels of the sound spectrum. One frequency region that is designated the measurement channel is where the sound measurement intensity strongly depends on urine flow levels. Another frequency region that is designated the reference channel is where the sound measurement intensity is not dependent on urine flow levels. By using a combination of measurements from the measurement channel and the reference channel, the urine-flow monitoring apparatus compensates for variations in operating conditions and other factors during use.

Abstract: The disclosure relates to a method and an arrangement for diagnosis of a final control element, which is actuated by a pneumatically operated actuating mechanism under the control of a control device, and which emits acoustic signals during conventional use. It is proposed to detect acoustic signals fed back into the pneumatic system of the actuating mechanism, and to derive from them the status data of the final control element. For this purpose, an acoustic sensor is arranged in the pneumatic-fluid supply line of the actuating mechanism, with the acoustic sensor being electrically connected to an analysis device. A pressure sensor is used as the acoustic sensor.

Abstract: A system and method for measuring the flow of water in cross-section of a body of water is presented. The system and method comprises a housing having a first transducer and a plurality of second transducers, wherein the first transducer produces an acoustic signal for determining the depth of the body of water, and the second transducers each produce an acoustic signal for determining the velocity of a volume of water by measuring the Doppler frequency shift in the returned echo.

Abstract: The present invention relates to a vibrating flow meter (210) and a method of providing a vibrating flow meter (210). The vibrating flow meter (210) includes a conduit (103A) and a driver (104) configured to vibrate the conduit (103A). The vibrating flow meter (210) also includes a first pick-off (105). The first pick-off (105) includes a first pick-off component (105a) and a second pick-off component (105b). The vibrating flow meter (210) also includes a reference member (150). The first pick-off component (105a) is coupled to the reference member (150) while the second pick-off component (105b) is coupled to the conduit (103A) proximate the first pick-off component (105a). The vibrating flow meter (210) also includes a balancing element (253) coupled to the reference member (150).

Abstract: A measuring system comprises: a measuring transducer of vibration type, through which fluid flows during operation, and which produces oscillation signals corresponding to parameters of the flowing fluid; as well as a transmitter electronics (TE), which is electrically coupled with the measuring transducer, and serves for activating the measuring transducer and for evaluating oscillation signals delivered by the measuring transducer. The measuring transducer (MT) includes: At least one measuring tube (10; 10?) for conveying flowing fluid; at least one electro-mechanical oscillation exciter (41) for actively exciting and/or maintaining bending oscillations of the at least one measuring tube in a wanted mode; and at least a first oscillation sensor (51) for registering vibrations of the at least one measuring tube, and for producing an oscillation signal (s1) of the measuring transducer, representing vibrations at least of the at least one measuring tube.

Abstract: An ultrasound flow meter unit arranged to measure a fluid flow rate with one or more ultrasound transducers (606), and a circuit board (602) with an electronic circuit arranged to operate the ultrasound transducer(s) (106, 306). The ultrasound transducer (606), e.g. in the form of a piezo-electric element, is mechanically fixed to the circuit board (602) by a first electrically conducting fixing means which additionally serve(s) to provide an electrical connection between an electrical terminal of the transducer (606) and the electronic circuit. Hereby a functional flow measurement unit (600) is provided which can be tested prior to assembly with a flow meter housing etc. Preferably, a set of ultrasound transducers (106, 306) are soldered directly onto electrically conducting paths (631) on a surface of the circuit board (602) being in electrical connection with the electronic circuit, e.g. in a single SMT mounting process together with mounting of all other electronic components on the circuit board (602).

Abstract: A system for use in installation of blown fiber for detecting a signal indicative of presence of at least one of a gas flow or an optical fiber at a remote location, comprising a gas vibration detector configured to acoustically couple with an installation duct through which the signal can travel after its generation at the remote location, and a processor arranged to receive an input from the vibration detector and to process the input to identify the signal present within the input; and a sensor for generating the signal upon sensing the presence of at least one of the gas flow or the optical fiber at the remote location. The signal can be provided by a whistle mounted on the remote end of the installation duct. The vibration sensor is typically a microphone.

Abstract: Techniques are provided for monitoring particle laden flows in a pipe, that include receiving signalling containing information about a parameter related to a particle laden flow in a pipe, the parameter including either (a) a sound level propagating through the particle laden flow in the pipe, or (b) a static pressure due to an acceleration of the particle laden flow in the pipe; and determining a measurement of a particle size and either a mass flow rate, or a particle-to-air mass ratio, or both the mass flow rate and the particle-to-air mass ratio, associated with the particle laden flow, based at least partly on a change in the parameter.

Abstract: Ultrasonic flow meter transducer assembly. At least one some of the illustrative embodiment are systems including: a spool piece that defines an exterior surface, a central passage, and a transducer port extending from the exterior surface to the central passage; and a transducer assembly coupled to the transducer port.

Abstract: An ultrasonic transducer is described for use in a fluid medium. The ultrasonic transducer includes at least one piezoelectric transducer element and at least one matching element for promoting an oscillation injection between the piezoelectric transducer element and the fluid medium. The ultrasonic transducer also includes a housing (112), the piezoelectric transducer element being inserted in the housing. The housing has at least one opening facing the fluid medium, the matching element being inserted at least partially into the opening. The ultrasonic transducer also has at least one sealing element, which seals at least one intervening space between the matching element and the housing in such a way that an inner space of the housing is at least largely sealed from the fluid medium.

Abstract: A pair of electro-acoustic transducers, one functioning as a speaker and the other functioning as a microphone, are operatively coupled to a reference which in turn is in communication with a fluid. A regenerative frequency filtering loop is operatively coupled between the transducers and functions to apply amplified signal to the speaker and produce an acoustic signal which propagates through the medium. The acoustic signal is sensed by the microphone and coupled to the regenerative loop input. For certain frequencies, the spacing between the transducers together with the speed of propagation of sound through the fluid combine with the frequency filtering of the regenerative loop to cause the loop to regenerate at a frequency indicative of the relative speed between the reference and the fluid.

Abstract: The present invention relates to a housing arrangement for an ultrasound flow meter, comprising a unipartite or multipartite housing (2) provided to be connected to a fluid line, comprising an ultrasonic transducer having an ultrasonic transducer body and a housing or covering which at least partially surrounds the ultrasonic transducer body, comprising a housing opening provided in the housing (2) for positioning the ultrasonic transducer at the housing arrangement, comprising a sealing element arranged between the housing (2) and the ultrasonic transducer, wherein a housing insert (5) can be inserted in the housing opening (16) as a module, the housing insert (5) is adapted to receive at least two ultrasonic transducer bodies (4, 7) which are positioned separately, without the ultrasonic transducer body (4, 7) coming into contact with the fluid, and the housing insert (5) is connected to the housing (2) via a sealing element (13) which is common to the ultrasonic transducer bodies (4, 7) which are positione

Abstract: A driver circuit comprises: a voltage controller (UCD), which delivers a direct voltage (UPD) to a controller output; a direct voltage converter (DC/DC), to which is applied on the primary side the direct voltage (UPD) delivered from the voltage controller, and which converts such into a direct voltage (U?PD) available on the secondary side; and an end stage operated by means of said direct voltage (U?PD), which converts a control signal (sinexc—A) lying on a signal input into a driver signal (iexc) for the measuring transducer. The direct voltage (U?PD) available on the secondary side of the direct voltage converter (DC/DC) has, in such case, a magnitude which is always smaller than a magnitude of the direct voltage (UPD) delivered by the voltage controller, and the driver signal (iexc) has an electrical power (Pexc), which is higher than an electrical power (Psin) of the control signal (sinexc—A).

Abstract: A measuring arrangement for determining a chemical and/or physical, measured variable-especially a volume flow and/or mass flow-of a measured material flowing through a pipeline, wherein the measuring arrangement comprises a measuring transducer, wherein the measuring transducer includes at least one optical waveguide, which serves for producing, registering and/or transmitting measurement signals, and wherein the registering of the measuring signals in the optical waveguide occurs by means of a Fabry-Pérot sensor.

Abstract: In a two-phase flow exciting force evaluation method of the present invention, the surface of one of a plurality of tube bodies (3) is at least partially formed from a conductive material, displacement or stress of the tube body (3) is measured in a state of being vibrated by a shaking device (4), and a void fraction of a two-phase flow (F) flowing in the vicinity of the tube body (3) is measured based on the potential difference between an electric potential at a predetermined position on the surface of the tube body (3), and a reference electric potential.

Abstract: Replacement of a transducer assembly for an ultrasonic fluid meter. At least some of the illustrative embodiments are methods including: disconnecting a wiring harness that electrically couples electronics of an ultrasonic meter to a transducer assembly; removing the transducer assembly as a single unit from a transducer housing; inserting a replacement transducer assembly as a single unit into the transducer housing; and reconnecting the wiring harness.

Abstract: An ultrasonic flow meter includes a first ultrasonic sensor, a second ultrasonic sensor, a volume-flow operation portion, a temperature operation portion, a pressure operation portion, and a correction operation portion. The ultrasonic sensors transmit and receive a plurality of ultrasonic waves of different frequencies and are disposed on opposite sides of a flow channel in which fluid flows. The volume-flow operation portion calculates a volume flow of the fluid based on a propagation time difference of the ultrasonic wave. The temperature operation portion analyzes signals from one of the ultrasonic sensors and calculates a temperature of the fluid. The pressure operation portion analyzes signals from one of the ultrasonic sensors and calculates a pressure of the fluid. The correction operation portion corrects the volume flow with the temperature and the pressure.

Abstract: An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a single sheet of piezoelectric film material wrapped around at least a portion of the pipe and an array of sensors disposed at different locations on the film material. Each of the sensors provides a signal indicative of pressure within the pipe at a corresponding axial and/or circumferential location of the pipe. The sensors are selectively configurable to provide the pressure signals. The signals are processed to determine the parameter. The array of sensors is configurable in response to different criteria. The criteria includes at least one of the parameter of the fluid to be output, an input signal specifying sensors to be selected, a predetermined configuration based on the parameter to be determined, and in response to a previously determined parameter of the fluid.

Abstract: A meter electronics (20) for generating a drive signal for a vibratory flowmeter (5) is provided according to an embodiment of the invention. The meter electronics includes an interface (201) and a processing system (203). The processing system is configured to receive the sensor signal (201) through the interface, phase-shift the sensor signal (210) substantially 90 degrees to create a phase-shifted sensor signal, determine a phase shift value from a frequency response of the vibratory flowmeter, and combine the phase shift value with the sensor signal (201) and the phase-shifted sensor signal in order to generate a drive signal phase (213). The processing system is further configured to determine a sensor signal amplitude (214) from the sensor signal (210) and the phase-shifted sensor signal, and generate a drive signal amplitude (215) based on the sensor signal amplitude (214), wherein the drive signal phase (213) is substantially identical to a sensor signal phase (212).