Thu, 27 Oct 2016 08:00:00 EDTA seismic detection element for a micromechanical sensor, having a first functional layer, a second functional layer and a third functional layer, the second functional layer being situated between the first functional layer and the third functional layer; a defined number of cavities being developed in the second functional layer; reinforcement elements being situated between the cavities, which are firmly connected to the first functional layer and to the third functional layer.
Thu, 27 Oct 2016 08:00:00 EDTA micromechanical structure for an acceleration sensor, including a seismic mass which is connected to a substrate with the aid of a central connecting element, a defined number of electrodes situated on the substrate, one spring element being situated on each side of the connecting element in relation to a sensing axis.
Thu, 27 Oct 2016 08:00:00 EDTA piercer washing port is provided at a position on the trajectory of a piercer differing from the sampling position. The piercer washing port is cylindrically shaped and has an opening for inserting the piercer in the upper surface and a washing space for housing the piercer inserted from the opening. Air injection ports for injecting air and washing liquid expelling ports for expelling water serving as a washing liquid are provided on the inside wall surface of the piercer washing port. The air injection ports are provided at four locations equally spaced on the periphery along the inside wall surface of the washing space. The washing liquid expelling ports 44 are provided at four locations equally spaced on the periphery along the inside wall surface of the washing space at different positions than those of the air injection ports.
Thu, 27 Oct 2016 08:00:00 EDTThe present invention lies in the field of automated analysis devices and relates to a method for monitoring the functionality of a wash station (1) for pipetting needles (2).
Thu, 27 Oct 2016 08:00:00 EDTA monitoring system is configured to detect a threshold amount of petroleum in a storm water-based fluid of an oil handling facility. For instance, the storm water-based fluid can be drained from a floating roof of a petroleum storage tank, a diked area, or a retention pond.
Thu, 27 Oct 2016 08:00:00 EDTIn the production of petroleum-based products in a refinery, viscosity and density are accurately and repeatedly measured at an elevated temperature, sometimes in a hostile environment. A densitometer and viscometer are located in a non-purged enclosure, but the electrical controls that could cause a spark to ignite fumes are located in a purged enclosure with connections there between. A heat pipe extending from the purged enclosure to the non-purged enclosure accurately controls the temperature of a sample during testing. For difficult to handle petroleum-based products such as asphalt, a sample conditioning system prepares the sample prior to testing.
Thu, 27 Oct 2016 08:00:00 EDTThe present invention relates to a gas detector cell unit comprising a gas cell, the unit comprising an outer housing providing access to the gas outside through a protecting filter adapted to making gas cell safe for use in explosive environments, i.e. a sintered filter, and the unit comprising means for detecting reduction in the circulation through said protecting filter.
Thu, 27 Oct 2016 08:00:00 EDTA rotary valve comprising a stator and a rotor, wherein the stator comprises at least three primary connection ports and at least three secondary connection ports, and wherein rotor interconnection paths are arranged to in the different rotor positions interconnect the primary connection ports with the secondary connection ports such that all of at least three secondary connection ports can be connected one at the time to each of at least three primary connection port by rotating the rotor into the different rotor positions. A chromatography system comprising at least three chromatography columns and a column inlet rotary valve, a column outlet rotary valve and a feed recirculation flow path.
Thu, 27 Oct 2016 08:00:00 EDTA photo-acoustic gas sensor includes a light emitter unit having a light emitter configured to emit a beam of light pulses with a predetermined repetition frequency and a wavelength corresponding to an absorption band of a gas to be sensed, and a detector unit having a microphone. The light emitter unit is arranged so that the beam of light pulses traverses an area configured to accommodate the gas. The detector unit is arranged so that the microphone can receive a signal oscillating with the repetition frequency.
Thu, 27 Oct 2016 08:00:00 EDTA method and apparatus for identifying shim geometries. A first part and a second part are assembled with a couplant positioned between the first part and the second part at a shim location, at which a shim is to be installed, to form an assembly. A pulse of ultrasonic energy is sent into the assembly at each of a set of selected locations along the assembly corresponding to the shim location using an ultrasonic device. A plurality of echoes is detected for each of the set of selected locations using data generated by the ultrasonic device in response to the ultrasonic device receiving reflections of the ultrasonic energy. A geometry for the shim is identified based on the plurality of echoes detected at each selected location of the set of selected locations.
Thu, 27 Oct 2016 08:00:00 EDTSystems and methods for detecting damage in composite components are disclosed. A first attachment feature and a second attachment feature may be coupled to a composite component. A transmitting device may be coupled to the first attachment feature. A receiving device may be coupled to the second attachment feature. A signal may be transmitted from the transmitting device, through the first attachment feature, through the composite component, and through the second attachment feature to the receiving device. The signal may be analyzed to detect damage in the composite component.
Thu, 27 Oct 2016 08:00:00 EDTA method of assembling a remote sensor system to detect a gas or chemical and a remote sensor system are described. The method includes fabricating a sensor, the sensor outputting a sensor signal that changes upon contact of the sensor with the gas or chemical and the sensor having an input port for a clock signal, coupling a capacitor to the sensor, the capacitor output voltage resulting from the sensor signal output by the sensor, and coupling a mixer to the capacitor and a low frequency oscillator, the mixer configured to mix the capacitor output voltage with the low frequency oscillator output to generate an output signal. The method also includes coupling an antenna to the mixer, the antenna configured to transmit the output signal indicating detection of the gas or chemical.
Thu, 27 Oct 2016 08:00:00 EDTAn air-mass measuring apparatus for a vehicle, that has a support element, an air-mass sensor for providing air-mass data, the air-mass sensor being disposed on the support element, at least one further sensor for providing further sensor data, the at least one further sensor being disposed on the support element, and an evaluation circuit having a first input interface to receive the air-mass data, at least one second input interface to receive the further sensor data and having an output interface, the evaluation circuit being disposed on the support element and being designed to provide the air-mass data and the further sensor data as bundled sensor data via the output interface.
Thu, 27 Oct 2016 08:00:00 EDTA dilution and filtration device comprises: a sampling member comprising a suspension collecting chamber having at least one suspension collecting window disposed at a side surface of the suspension collecting chamber; a top cap having a through hole at a center portion of the top cap; a connecting cylinder disposed at a top end of the sampling member and mounted to the through hole of the top cap such that the connecting cylinder is concentric with the through hole and is rotatable; and a specimen tube connected to the top cap and accommodating the sampling member. An apparatus of preparing excrement detection solutions comprising the dilution and filtration device and a method of preparing excrement detection solutions using the dilution and filtration device are also provided.
Thu, 27 Oct 2016 08:00:00 EDTA vacuum jacketed gas line adaptor with a flange cover for an existing pipeline sample take-off probe encasing a sample line and hermetically sealed to a vacuum valve housing having an sealable access port and containing a vented bleed valve and a block valve, fluidly connected to the sample line and a length of vacuum jacketed tubing sealing connected to the valve housing and in vacuum communication therewith, where the vacuum jacketed tubing surrounds the sample line to provide thermal isolation from the ambient for the sample line to a sample vaporizer.
Thu, 27 Oct 2016 08:00:00 EDTA sampling device configured to extract a sample from a fluid flow such as an oil flow. The sampling device has a sample extraction channel to extract the sample from the fluid flow, sample extracting device configured to press a sample into the sample extraction channel, and a check valve in the sample extraction channel. The check valve has a valve seat and a sealing device movable with respect to the valve seat between a closed position, in which the sealing device sealingly engages the valve seat and an open position in which the sealing device is spaced from the valve seat to allow fluid flow between the valve seat and the sealing device. The sealing device and the valve seat may have first seal element and a second seal element to engage in the closed position with the other.
Thu, 27 Oct 2016 08:00:00 EDTEmbodiments of the present disclosure are directed to a small volume sampling device having a deformable fluid reservoir and a stem. The sampling device includes a plurality of volumetric fluid loading indicia increasing from the closed end of the deformable fluid reservoir to the open end of the deformable fluid reservoir adjacent the stem. The sampling device has an improved hold-up volume when sampling small volumes of fluid.
Thu, 27 Oct 2016 08:00:00 EDTA vehicle restraint apparatus is for restraining a vehicle 1 on one or more rollers 7 of a vehicle test system. The vehicle restraint apparatus 11 includes a vehicle restraining jig 12 to connect the vehicle 1 with a pole 10 on a floor 9, and a deflection absorbing mechanism 90 to absorb deflection of the vehicle restraining jig 12 produced at the time of vehicle test with the vehicle test system.
Thu, 27 Oct 2016 08:00:00 EDTA vehicle restraint apparatus is for restraining a vehicle 1 on one or more rollers 7 of a vehicle test system. The vehicle restraint apparatus 11 includes a pair of vehicle restraining jigs whose first ends are joined with left and right seatbelt fixing pillars 2 of the vehicle 1, respectively, and whose second ends are joined with left and right poles 10 on a floor, respectively.
Thu, 27 Oct 2016 08:00:00 EDTA process for testing a full-sized aircraft or full-sized gas turbine engine in a wind tunnel and includes the steps of securing a full-sized aircraft or engine in a wind tunnel for testing; filling an underground storage reservoir with compressed air; passing pre-treated compressed air from the underground storage reservoir through the wind tunnel for testing of the full-sized aircraft or engine; connecting an outlet of the wind tunnel to an ejector; and, passing compressed air from the underground storage reservoir through the ejector to decrease the exit pressure at the wind tunnel during testing of the full-sized aircraft or engine. The step of pre-treating compressed air from the underground storage reservoir includes preheating the compressed air; and, passing the higher temperature compressed air into the wind tunnel.
Thu, 27 Oct 2016 08:00:00 EDTBlowout preventers, fluid pressure systems and portions thereof may be tested for leaks by calculating an Apparent Compressibility Factor which is determined during initial pressurization of the system to the test pressure. The equivalent decay rate is calculated by measuring the amount of intensifying fluid required to be added to maintain the system at the test pressure level. The equivalent decay rate in psi per minute is then compared to the acceptable decay rate for the pressure level of the test to determine if the system passed the test.
Thu, 27 Oct 2016 08:00:00 EDTThe present invention discloses an improved method of combination test by using argon as gross-leak tracer gas and using helium as fine-leak tracer gas, belongs to the field of hermeticity test. The method is designed to solve the problem that the existing methods are not ideal when the component has lower τHemin and wider range of volume V. The invention comprises step S1 of selecting: using helium-argon prefilling method for the first hermeticity test and helium-argon pressuring method after helium-argon prefilling for repetitive hermeticity test, or using helium-argon pressuring method after argon prefilling for the first hermeticity test and helium-argon multi-pressuring method after argon prefilling for repetitive hermeticity tests. The improved method extends the maximum detection-waiting time, effectively prevents detection missing and misjudges in gross-leak/fine-leak test, and solves the detection problems on applicability, feasibility and credibility.
Thu, 27 Oct 2016 08:00:00 EDTThe flame status of a group of gas turbine combustors is acoustically monitored using dynamic pressure sensors within the combustor. Dynamic pressure sensor output signals are received from the sensors and processed to determine flame status. The signals are processed both by performing a correlation analysis within each combustor and by applying a wavelet-based flame detection algorithm to each output signal. A flame is determined to be present based on the correlation analysis and the wavelet-based flame detection algorithm. The wavelet-based flame detection algorithm is chosen based on whether the gas turbine combustors are in an ignition phase or a monitoring phase.
Thu, 27 Oct 2016 08:00:00 EDTA pressure scanner assembly having at least one replaceable sensor plate, wherein each of the replaceable sensor plates has at least one pressure sensor adapted to transmit a signal substantially indicative of a sensed pressure condition. A memory chip, which stores correction coefficients for each of the pressure sensor to compensate for thermal errors, may be installed on each of the replaceable sensor plates. The signals from the pressure sensors are multiplexed and may be outputted in analog or digital form. The pressure scanner assemblies described herein have sensor plates that can be interchanged with other sensor plates of the same or different pressure range without disrupting the electronic configuration of the pressure scanner assembly or having to recalibrate and/or update the memory chip installed thereon.
Thu, 27 Oct 2016 08:00:00 EDTA pressure sensor package includes a substrate, a pressure sensor, and a semiconductor circuit. The semiconductor circuit is disposed on one surface of the substrate and having a reception space open to one surface of the substrate. A pressure sensor is connected to the substrate and disposed in the reception space.
Thu, 27 Oct 2016 08:00:00 EDTA relative pressure sensor (1) comprises: a pressure measuring cell (10) having a measuring diaphragm (12), a main body (14) which is connected to said measuring diaphragm, and a measuring chamber between said measuring diaphragm and main body, a reference pressure being applied to said measuring chamber by means of a reference pressure channel (18) which runs from a rear face (16) of the main body (14) through the main body (14); a clamping ring (38); and a housing (40) which has at least one housing body (42) with a measuring cell chamber (46), wherein the pressure measuring cell (10) is clamped in the measuring cell chamber (46) by the clamping ring (38), wherein the housing has a reference air opening (48) which communicates with the reference pressure channel (18) by means of a reference air path which has a path volume which is separate from the volume of the measuring cell chamber, wherein the reference air path has a section which runs along the rear face of the main body, wherein the section is bounded by the rear face of the main body and a guide body, which guide body is clamped in against the rear face of the main body and covers an opening of the reference pressure channel (18) in the rear face of the main body.
Thu, 27 Oct 2016 08:00:00 EDTIn a pressure sensor having a configuration in which strain gauges are provided on a diaphragm, a change in sensor characteristic caused by a positional shift of the strain gauges is suppressed, and a change in sensor output in response to a change in temperature is suppressed. The pressure sensor is a pressure sensor obtained by arranging, on a diaphragm having a long side and a short side, a sensor chip in which four strain gauges having the same characteristic and constituting a bridge circuit are provided, the pressure sensor being for detecting, in the bridge circuit, voltage output that is in proportion to a pressure applied to the diaphragm, and the pressure sensor is configured as follows: the four strain gauges are arranged to be adjacent to one another in the vicinity of the center of the diaphragm so that two strain gauges are arranged along the short side and the other two strain gauges are arranged along the long side; and the diaphragm has a thin portion in a long-side direction seen from the sensor chip.
Thu, 27 Oct 2016 08:00:00 EDTA load detection apparatus includes a strain element including a first fixation hole into which a fixation member is insertable to be positioned, a second fixation hole into which a connection member is insertable to be positioned, a strain gage, and a fixation support member inserted to be positioned within the first fixation hole, the first fixation hole serving as an elongated bore, the fixation support member including a base portion specified to be greater than the first fixation hole, an intermediate shaft portion protruding from the base portion and fitted to the first fixation hole, and an insertion hole into which the fixation member is inserted to be positioned, the insertion hole being provided in a state where a center position of the insertion hole is displaced relative to a center position of the intermediate shaft portion in a longitudinal direction thereof.
Thu, 27 Oct 2016 08:00:00 EDTA package having a recessed section, a sensor element arranged in the recessed section and having a piezoelectric material, a lid joined to the package and sealing the recessed section of the package are provided. The package has a first hollow portion which a part of the sensor element fits with, on an inner bottom surface of the recessed section. The lid has a second hollow portion which a part of the sensor element fits with.
Thu, 27 Oct 2016 08:00:00 EDTEmbodiments of the present invention relate to graphene-based capacitive sensors. In one embodiment, a touch sensor comprises a non-porous insulating substrate having a first side and a second side. A first conductive material is at least partially in communication with the first side. A second conductive material is at least partially in communication with the first side. A third conductive material is at least partially in communication with the second side. The first conductive material and the second conductive material are in communication. The first conductive material forms a linearization pattern. The first conductive material includes a metal. The second conductive material and/or third conductive material comprise graphene sheets.
Thu, 27 Oct 2016 08:00:00 EDTA liquid level detector may include a float, an arm member, and a magnetic sensor unit. The float may be attached to the arm member. The arm member may be configured to convert a movement of the float in a vertical direction to a rotational movement. The magnetic sensor unit may include a magnetic sensor and covers. The covers may cover the magnetic sensor. The covers may include a first cover, and a second cover. The first cover may be made of a first resin material. The first cover may cover a whole surface of the magnetic sensor. The second cover may be made of a second resin material different from the first resin material. The second cover may cover a whole surface of the first cover.
Thu, 27 Oct 2016 08:00:00 EDTMethods and systems are provided for diagnosing fuel level indicators in a saddle fuel tank. In one example, a method may include determining degradation of each of the first and the second fuel level indicators included in a first compartment and a second compartment of a saddle tank based on a correlation between changes in fuel tank pressure during the refueling event and an indication by the fuel level indicators of the first and the second compartment reaching full capacity.
Thu, 27 Oct 2016 08:00:00 EDTLevel of substance in a container can be determined by exciting vapor in unfilled space within the container. Variable frequency oscillator and emitting transducer can provide signals to excite resonance of vapor. Sensors can measure the peak resonant signal of vapor excited in unfilled space within the container as the amount of substance in the container changes. A signal-processing unit coupled to the sensor and variable frequency oscillator can process signals sensed by the sensing transducer and can extract them from background noise affecting the acoustic signal of the system using correlation functions by referencing the signal generated by the variable frequency oscillator. A computer can obtain the sign processed by the signal-processing unit and calculate the unfilled space within the container and derive therefrom an amount of filled space representing the amount of the substance contained therein. A gauge can indicate the amount of substance in the container.
Thu, 27 Oct 2016 08:00:00 EDTApparatus for measuring fill level of a fill substance in a container, comprising a fill-level sensor, which is so embodied that it determines fill level via a travel-time difference measuring method or a capacitive measuring method, a limit-level sensor for monitoring a limit-level of the fill substance in the container, and an electronics unit, which is associated with the fill-level sensor and/or the limit-level sensor. The electronics unit determines based on measurement data of the fill-level sensor the fill level of the fill substance in the container, and wherein the electronics unit monitors based on measurement data of the limit-level sensor (2) the limit-level of the fill substance in the container.
Thu, 27 Oct 2016 08:00:00 EDTA device for measuring liquid volume in a container, wherein the measuring device includes a compression member, which is in sealed connection with a container to be detected, forms a sealed space in the container, and compresses gases in the sealed space under the effect of an external force, and the compressed volume value of the gases is a predetermined value; a pressure detector, which is disposed on the compression member, and configured to measure the pressure values of the gases in the container before and after compression; and a controller. A container and a method for measuring liquid volume in a container is further provided.
Thu, 27 Oct 2016 08:00:00 EDTUnderground storage caverns are used for the bulk storage of hydrocarbon liquids, such as crude oil and gases, such as natural gas. The cavern is accessed through a bore hole which has casing and, for some bore holes, internal tubing with an annulus between the casing and tubing. The upper end of the cavern has a roughly cylindrical region termed the chimney. In order to check it for physical integrity, it is necessary to measure the profile of the chimney. This is also referred to as conducting a survey of the cavern. The cavern typically has hydrocarbon liquid above brine up to the surface. An inert gas can be injected above the hydrocarbon liquid to form an interface. The profile is conducted by driving the gas/liquid interface downward with gas pressure to a reference level determined by sequentially transmitting acoustic pulses to locate the reference level. Gas is injected to increase the pressure by a predetermined value and thereby drive down the interface by a known distance. The volume of the gas injected is used together with the known distance to determine a profile of the chimney. The process of injection of gas to increase the pressure by the predetermined value and measurement of the volume is repeated sequentially to determine the chimney profile at progressively lower regions, thereby producing an extended profile of the chimney.
Thu, 27 Oct 2016 08:00:00 EDTA case is equipped to an intake passage where a mainstream of air flows toward an engine. The case has a bypass passage which draws a part of the mainstream. A sensor is equipped to the bypass passage. The case has an external wall as a side wall extending along the mainstream direction in which the mainstream flows. The bypass passage has an outlet port formed in the side wall as an opening which opens in a direction substantially perpendicular to the mainstream direction. The airflow measuring device further includes a throttle located on the upstream side in the mainstream direction than a center of the opening to throttle a stream of air which flows outside the case along the side wall. The throttle throttles the stream of air to flow toward a downstream side and to merge with air flowing out from the opening.
Thu, 27 Oct 2016 08:00:00 EDTA pressure-sensor apparatus for an air-mass measuring apparatus for a vehicle. The pressure-sensor apparatus has a circuit carrier, a first pressure sensor which is disposed on the circuit carrier and is designed to sense a pressure and to provide a first pressure signal representing the pressure, a second pressure sensor which is disposed on the circuit carrier and is designed to sense the pressure and to provide a second pressure signal representing the pressure, and an evaluator which is disposed on the circuit carrier and has a first input interface to receive the first pressure signal, a second input interface to receive the second pressure signal and an output interface to output an output signal provided using the first pressure signal and the second pressure signal.
Thu, 27 Oct 2016 08:00:00 EDTA method for determining a gas consumption of a gas-powered gas engine or a gas-powered dual-fuel engine. The engine is operated under actual operating conditions, and the actual gas consumption of the engine is acquired under the actual operating conditions. A target gas consumption of the engine to be anticipated under target operating conditions is calculated depending on the actual gas consumption and depending on discrepancies between the actual operating conditions and the target operating conditions.
Thu, 27 Oct 2016 08:00:00 EDTThe coil (1) comprises a platform (11) having a passageway (11A; 11A) extending from an end (11+) of the platform formed by a first end face to an end (11#) of the platform distal to the end (11+) and formed by a second end face, and a coil support (12) having a passageway (12A) extending from an end (12+) of the coil support formed by a first end face to an end (12#) of the coil support distal to the first end and formed by a second end face. The coil support (12) is so arranged relative to the platform (11) that the second end face of the coil support faces the platform and an intermediate space (20) is formed between the second end face of the coil support and the first end face of the platform, and that the passageway (12A) of the coil support aligns with the passageway (11A) of the platform. The coil (1) additionally comprises a screw (13) accommodated both by the passageway of the coil support as well as also by the passageway of the platform for the mechanical connecting of coil support and platform, a coil wire (14) of an electrically conductive material wound around the coil support, as well as at least two connecting lines (111, 112), in each case, placed partially in the intermediate space formed between coil support and platform, of which connecting lines a connecting line (111) has at least one conductor (111A) of electrically conductive material electrically conductively connected with an end (14+) of the coil wire and a connecting line (112) has at least one conductor (112A) of electrically conductive material electrically conductively connected with an end (14#) of the coil wire. The coil is provided especially also for application in a measuring transducer of vibration-type.
Thu, 27 Oct 2016 08:00:00 EDTIn the method of the invention, a portion of the metal tube is placed in a lumen of a metal sleeve (30) having a metal wall surrounding the lumen. The metal tube is placed in such a manner that an outer surface of the metal tube and an inner surface of the metal sleeve at least partially contact one another. The metal sleeve is affixed on the portion of the metal tube placed in its lumen for forming a metal tube, metal sleeve, composite system (10/30). The metal tube, metal sleeve, composite system (10/30), in turn, is placed in the passageway of the metal body in such a manner that an outer surface of the metal sleeve and an inner surface of the passageway at least partially contact one another, in order thereafter by plastically deforming at least the metal sleeve of the metal tube, metal sleeve, composite system placed in the passageway to form a force interlocking between the inner surface of the passageway and the outer surface of the metal sleeve. The so formed metal tube, metal sleeve, metal body composite system (10/30/20) can serve as a component of a measuring transducer, respectively a vibronic measuring device formed therewith.
Thu, 27 Oct 2016 08:00:00 EDTThe invention relates to an apparatus for determining concentrations (x1,x2) of components of a gas mixture (2) flowing through a pipeline (1), wherein the gas mixture (2) is essentially composed of two or three components, wherein an ultrasonic, flow measuring device (31) is provided, which determines velocity (Cg) of sound of the gas mixture (2) flowing in a pipeline (1), wherein a temperature measuring unit (12) is provided, which determines temperature (T) of the gas mixture (2) flowing in the pipeline (1), and wherein an evaluation unit (21) is provided, which, based on velocity of sound (Cg) ascertained via ultrasonic measurement and based on velocity of sound (Ct) resulting from evaluation of the real gas equation, determines the concentrations (x1,x2) of the components of the gas mixture (2).
Thu, 27 Oct 2016 08:00:00 EDTA method for assessing a gas phase in a flowing multi-phase fluid comprises flowing the fluid through magnetic resonance and pre-polarization modules and applying to the fluid a radio-frequency pulse sequence at least once with and at least once without a magnetic field gradient. The method further includes measuring an NMR signal. The method also includes using a calibration between the ratio of slope and intercept of the NMR signal and flow velocity for at least one non-gas phase with the gradient applied to determine that phase's velocity. A calibration between the signal intensity of the liquid phases as function of flow velocity is used, with and without gradient, to correct the gradient-induced attenuation of the liquid signals and to calculate a gradient-corrected signal intensity of the liquid phases without a magnetic field gradient. Additionally, the method includes subtracting the gradient-corrected signal intensity from the NMR signal to calculate the volumetric fraction of the liquid phase.
Thu, 27 Oct 2016 08:00:00 EDTA measuring arrangement comprising a pipe (2) with a pipe axis (B) and an ultrasonic, flow measuring device (1), wherein the ultrasonic, flow measuring device (1) has a sensor unit (3), which is fixed in a hole (16) in the pipe (2), which hole (16) is introduced essentially perpendicularly to the pipe axis (B) into the pipe wall,wherein the sensor unit has a rail (18) or a rod with a longitudinal axis (A),wherein the rail or the rod bears at least two ultrasonic transducers (4 and 13), which define a signal path,wherein the signal path extends parallel to or on the longitudinal axis (A) of the rail (18) or of the rod, andwherein the signal path is tilted from a perpendicular connecting line (C) between the center point of the hole and the pipe axis (B), as well as an ultrasonic, flow measuring device.
Thu, 27 Oct 2016 08:00:00 EDTThis system for measuring a flow rate includes a receiver of bulk acoustic waves, a first emitter of bulk acoustic waves in the fluid, intended to be arranged upstream of the receiver in such a way as to emit acoustic waves to the receiver, a second emitter of bulk acoustic waves in the fluid, intended to be arranged downstream of the receiver in such a way as to emit acoustic waves to the receiver, and a signal processing device designed to determine a flow rate value according to at least one characteristic of an electrical signal supplied by the receiver. It further includes means for synchronizing the first and second emitters with each other in such a way as to generate destructive acoustic interferences between the acoustic waves that they emit before they are received by the receiver.
Thu, 27 Oct 2016 08:00:00 EDTA field device according to one aspect of the present invention includes a sensor, an analog-digital converter configured to continuously convert detected signals output from the sensor to digital signals, and a calculator configured to convert the digital signals to process values. The calculator starts acquisition of the digital signals output from the analog-digital converter at a first point in time that is delayed by a processing time required for the conversion process of the analog-digital converter from a start point of a timing signal defining a sampling section of the detected signals, and finishes the acquisition of the digital signals output from the analog-digital converter at a second point in time that is delayed by the processing time from an end point of the timing signal.
Thu, 27 Oct 2016 08:00:00 EDTA measuring tube for a magneto-inductive flow measuring device, comprising a support tube (33, 53, 62, 73, 103) and a liner (52, 72, 102) arranged in the support tube (33, 53, 62, 73, 103), characterized in that the measuring tube has at least one terminal support bushing (59, 79, 108) of porous material for anchoring the liner (52, 72, 102) to the support tube (33, 53, 62, 73, 103). A magneto-inductive flow measuring device with such a measuring tube.
Thu, 27 Oct 2016 08:00:00 EDTIn order to perform a zero-point calibration of a measuring assembly according to the differential pressure principle, which measuring assembly has a measuring transducer having a measuring cell, which measuring transducer is connected to at least one evaluating unit and at least one communication unit with regard to signaling, the digital signals provided to a communication unit are recorded. At least one characteristic value relevant to the zero-point calibration is determined from the digital signals. The at least one relevant characteristic value at a first time is stored as a reference characteristic value. At a second time lying after the first time, at least one relevant characteristic value is determined as a current characteristic value. A comparison of the reference characteristic value and the current characteristic value is performed. A zero-point calibration of the measuring assembly occurs if the result of the comparison lies outside of a specified tolerance.
Thu, 27 Oct 2016 08:00:00 EDTA fluid flow sensor includes a hollow cylindrical casing containing a large number of solid spheres of identical diameter, packed tightly together. Fluid inflow and fluid outflow blocks are mounted to opposite ends of the casing, forming a fluid-tight seal. The fluid inflow and outflow blocks each enclose a generally conical fluid chamber tapering from where it meets an end of an interior of the casing to a respective inlet passage or outlet passage. Circular grilles divide the casing from each fluid chamber and retain the spheres in place. A pressure differential across the casing is measured via side passages extending laterally from each fluid chamber. For a given fluid, a given casing diameter and a given sphere diameter, this pressure differential can be converted to a fluid flow rate.
Thu, 27 Oct 2016 08:00:00 EDTA measurement device can be attached to an outer wall of a movable object or of a stationary object arranged in a flow of air in order to measure physical quantities. The measurement device includes a mounting which has recesses having an opening leading to the outside in which sensors are provided. All of said openings of said recesses are covered by a single film. The film thus makes it possible to offer a surface which is as smooth as possible, having very low roughness with no unevenness. It also makes it possible to ensure the tightness of the sensors as well as the air insulation between all the sensors of the mounting.