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| Number | Title | Issue Date |
| 8170812 | Method and system for detecting deposit buildup within an ultrasonic flow meter Methods and systems for detecting deposit buildup within an ultrasonic flow meter are disclosed. At least some of the illustrative embodiments are ultrasonic flow meters comprising a spool piece configured to couple within a flow of fluid, a first transducer pair me... | 05/01/2012 |
| 8155895 | Method and system of detecting liquid in an acoustic flow meter Detecting liquid in an acoustic flow meter. At least some of the illustrative embodiments are methods including flowing a gaseous substance through a central passage of a meter body, sending acoustic signals along respective chordal pathways across the central passa... | 04/10/2012 |
| 8126661 | Wet gas measurement A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. A first apparent property of the multi-phase process fluid based on the motion of the vibratable flowtube is determined, and an apparent intermediate v... | 02/28/2012 |
| 8103461 | Method for determining the temporal position of a wave packet and flow measuring device The invention relates to a method for determining the temporal position of a wave packet (31) in a flow measuring apparatus, and to a flow measuring apparatus. The method includes the sampling of the wave packet at a plurality of points in time, wherein a mea... | 01/24/2012 |
| 7739061 | Method and system for controlling a user interface of a device using human breath Certain aspects of a method and system for controlling a user interface of a device using human breath may include detecting movement caused by expulsion of human breath by a user. In response to the detection of movement caused by expulsion of human breath, one or ... | 06/15/2010 |
| 7706986 | Apparatus for determining and/or monitoring volume and/or mass flow of a medium An ultrasonic flow measuring device, which determines volume and/or mass flow of a medium in a pipeline, or in a measuring tube. The flow measuring device includes a plurality of ultrasonic sensors, which emit and/or receive ultrasonic measurement signals along defi... | 04/27/2010 |
| 7706987 | In-flow determination of left and right eigenvectors in a Coriolis flowmeter A method and apparatus for periodically calculating the relative phase of the left eigenvector for a vibrating conduit is provided. During normal operation, two drivers are used in tandem to excite the main bending mode of the conduit (202). Periodically, fir... | 04/27/2010 |
| 7684938 | Self-cleaning ultrasonic flow sensor Acoustic windows that are portions of an ultrasonic sensor used to measure a rate of flow of a fluid are wetted whenever the fluid is present. These windows may become coated with a contaminant film during operation. The contaminant may be removed by applying an aco... | 03/23/2010 |
| 7617055 | Wet gas measurement A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. A first apparent property of the multi-phase process fluid based on the motion of the vibratable flowtube is determined, and an apparent intermediate v... | 11/10/2009 |
| 7584064 | Method and device to control a computer system utilizing a fluid flow A device, to facilitate a user control of a computer system, includes a movable portion movable by a fluid flow of a generated by a user of the device, and a converter to convert movement of the movable portion into an electrical signal to facilitate control of the ... | 09/01/2009 |
| 7546213 | Audio visualizer The invention relates to a loudness meter including display means and data-processing means where the data-processing means establishes loudness estimates on the basis of an input signal, a first part of the loudness meter indicating a current loudness estimate on t... | 06/09/2009 |
| 7516024 | Method and apparatus for measuring parameters of a stratified flow Various methods are described for measuring parameters of a stratified flow using at least one spatial array of sensors disposed at different axial locations along the pipe. Each of the sensors provides a signal indicative of unsteady pressure created by coherent st... | 04/07/2009 |
| 7444245 | Field device for determining and/or monitoring a process variable Field device for determining and/or monitoring at least one process variable of a medium in a container. The field device includes: at least one mechanically oscillatable unit connected with the container via a process connection; and at least one driver/receiver un... | 10/28/2008 |
| 7426443 | Device for determining and/or monitoring the volume flow rate and/or mass flow rate of a medium to be measured A ultrasonic flow measuring device, which is distinguished by a low energy consumption. A control/evaluation unit ascertains a plurality of sampled values (ai with i=1, 2, 3, . . . ) of a received measuring signal at defined points in time (t) of a predet... | 09/16/2008 |
| 7421350 | Meter electronics and method for detecting a residual material in a flow meter assembly A meter electronics and method for detecting a residual material in a flow meter assembly are provided according to the invention. The meter electronics includes a processing system adapted to direct the flow meter to vibrate the flow meter assembly and receive a vi... | 09/02/2008 |
| 7418370 | Method, apparatus and computer program providing broadband preconditioning based on reduced coupling for numerical solvers This invention relates to computing numerical solutions of linear systems of equations, specifically to implementing preconditioning of the coefficient matrix of such a system. The preconditioning applies to any coefficient matrix, dense or sparse, based on the solu... | 08/26/2008 |
| 7400985 | Apparatus having an array of clamp on piezoelectric film sensors for measuring parameters of a process flow within a pipe A apparatus 10,110,170 is provided that measures the speed of sound and/or vortical disturbances propagating in a single phase fluid flow and/or multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor... | 07/15/2008 |
| 7367239 | Piezocable based sensor for measuring unsteady pressures inside a pipe A piezocable-based sensor for measuring unsteady pressures inside a pipe comprises at least one cable extending around at least a portion of a circumference of the pipe. The cable includes a first electrical conductor, a piezoelectric material disposed around the fi... | 05/06/2008 |
| 7359803 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe An apparatus 10,70 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations X1-XN disposed axially along a pipe 14 for measuring at least one par... | 04/15/2008 |
| 7343253 | Coriolis mode processing techniques Flowmeters are described in which a sensor signal received from a sensor that is attached to vibratable flowtube, so as to determine properties of a fluid within the flowtube, contains a drive signal component and a coriolis mode component. The flowmeters are operab... | 03/11/2008 |
| 7342504 | Monitoring system and method A monitoring system includes one or more monitoring devices, positioned in sewer manholes, storm drains, etc., and a remote monitoring station that communicates wirelessly therewith. The monitoring device may be an integrated unit, including sensors, a two-way telem... | 03/11/2008 |
| 7340353 | Dual function flow measurement apparatus having an array of sensors A dual function flow measurement apparatus is provided that combines the functionality of an apparatus that measures the speed of sound propagating through a fluid flowing within a pipe, and measures pressures disturbances (e.g. vortical disturbances or eddies) movi... | 03/04/2008 |
| 7328624 | Probe for measuring parameters of a flowing fluid and/or multiphase mixture A probe 10,170 is provided that measures the speed of sound and/or vortical disturbances propagating in a single phase fluid flow and/or multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor ratio, ... | 02/12/2008 |
| 7322251 | Method and apparatus for measuring a parameter of a high temperature fluid flowing within a pipe using an array of piezoelectric based flow sensors A method, apparatus and system are provided to measure the process flow of a fluid or medium traveling in a pipe. The system and apparatus feature a standoff and piezoelectric-based sensor arrangement having a plurality of standoffs arranged on a pipe and a pluralit... | 01/29/2008 |
| 7308820 | Piezocable based sensor for measuring unsteady pressures inside a pipe A piezocable based sensor for measuring unsteady pressures inside a pipe comprises a cable wrapped around the pipe and an outer band compressing the cable towards the pipe. The cable provides a signal indicative of unsteady pressure within the pipe in response to ex... | 12/18/2007 |
| 7305309 | Transmission measuring system with high time resolution A transmission measuring system includes a subject for transmission measurement for outputting, in response to a start signal for measurement from a central processing unit, an output signal including information on a transmission time to be measured. An analog-digi... | 12/04/2007 |
| 7299140 | Method and system for multi-path ultrasonic flow measurement of partially developed flow profiles A method for determining a velocity of a flowing fluid includes estimating a Reynolds number for the flowing fluid; comparing the estimated Reynolds number with a selected range; and determining the velocity of the flowing fluid based on a flow model selected from a... | 11/20/2007 |
| 7295933 | Configurable multi-function flow measurement apparatus having an array of sensors A configurable multi-function flow measurement apparatus is provided that can selectably function to measure the speed of sound propagating through a fluid flowing within a pipe and/or to measure pressures disturbances (e.g. vortical disturbances or eddies) moving w... | 11/13/2007 |
| 7289914 | Ultrasonic flowmeter and ultrasonic flowmetering method An ultrasonic flowmeter casts an ultrasonic pulse toward a measurement line ML, processes ultrasonic echo signals, and calculates the position and speed of each ultrasonic reflector positioned along the measurement line ML by analyzing the ultrasonic echo signals su... | 10/30/2007 |
| 7274996 | Method and system for monitoring fluid flow A method and system for monitoring fluid flow, such as fluid flow through pipelines or similar conduits for delivering natural gas, crude oil, and other similar liquid or gas energy commodities, relies on the measurement of acoustic waves generated by the fluid, thu... | 09/25/2007 |
| 7253742 | Method and apparatus for measuring parameters of a fluid flowing within a pipe using a configurable array of sensors An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a spatial array of pressure sensors disposed at different axial locations x1. . . xN along the pipe. Each of the pressure sensors provides ... | 08/07/2007 |
| 7254518 | Pressure transmitter with diagnostics In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element and/or an impulse line which connects to a pressure sensor. A difference circuit coupled to the pressure sensor has a difference output which represents the sens... | 08/07/2007 |
| 7254494 | Ultrasonic signal processing method and applications thereof An ultrasonic signal processing method for improving the signal-to-noise ratio in ultrasonic measurements comprises the transmission of a predefined timed sequence of a number of ultrasonic burst signals at a first transducer, and reception of a signal representing ... | 08/07/2007 |
| 7248985 | Acoustic signature testing for electronic, electromechanical, and mechanical equipment A method for testing a unit is described where the unit includes one or more of electrical, electronic, mechanical, and electromechanical components. The described method includes applying at least one stimulus to the unit, receiving sound emissions from the unit, c... | 07/24/2007 |
| 7237440 | Flow measurement apparatus having strain-based sensors and ultrasonic sensors A flow measurement apparatus is provided that combines the functionality of an apparatus that uses strain-based sensors and ultrasonic sensors to measure the speed of sound propagating through a fluid flowing within a pipe, and measure pressures disturbances (e.g. v... | 07/03/2007 |
| 7213468 | Ultrasonic apparatus and method for measuring the concentration and flow rate of gas An ultrasonic apparatus measures the concentration and flow rate of a sample gas by calculating a possible propagation time range on the basis of the gas temperature, determining whether or not the phases at which two first trigger signals, respectively generated on... | 05/08/2007 |
| 7197938 | Contact-based transducers for characterizing unsteady pressures in pipes A sensor head characterizes unsteady pressures in a fluid flowing within a pipe, as may be caused by one or both of acoustic waves propagating through the fluid within the pipe and/or pressure disturbances that convect with the fluid flowing in the pipe. The sensor ... | 04/03/2007 |
| 7197942 | Apparatus for measuring velocity and flow rate of a fluid having a non-negligible axial mach number using an array of sensors An apparatus 10 and method is provided that includes a spatial array of unsteady pressure sensors 15–18 placed at predetermined axial locations x1–xN disposed axially along a pipe 14 for measuring the velocity and volum... | 04/03/2007 |
| 7165464 | Apparatus and method for providing a flow measurement compensated for entrained gas A apparatus 10,110 is provided that measures the speed of sound and/or vortical disturbances propagating in a fluid or mixture having entrained gas/air to determine the gas volume fraction of the flow 12 propagating through a pipes and compensating or ... | 01/23/2007 |
| 7152460 | Apparatus and method for compensating a coriolis meter A flow measuring system is provided that provides at least one of a compensated mass flow rate measurement and a compensated density measurement. The flow measuring system includes a gas volume fraction meter in combination with a coriolis meter. The GVF meter measu... | 12/26/2006 |
