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| Number | Title | Issue Date |
| 7987732 | Ultrasonic measuring unit having integrated humidity analysis An ultrasonic measuring unit and a method for detecting ultrasonic signal run-times, in which the ultrasonic measuring unit has two ultrasonic transducers for coupling ultrasonic signals into a flowing medium. Analysis electronics are provided to be accommodated on ... | 08/02/2011 |
| 7958786 | Flow measurement system and method using enhanced phase difference detection A flow measurement system and method uses enhanced phase detection based on a ratio of amplitudes of summations of two oppositely propagating acoustic signals. A need for direct time measurement and extensive difference calculation is consequently avoided so that in... | 06/14/2011 |
| 7752919 | System and method of an acoustic flow meter with dual flow measurements Acoustic flow meter with dual flow measurements. At least some of the illustrative embodiments are flow meters comprising a spool piece that defines a central passage, a first plurality of transducer pairs mechanically coupled to the spool piece, a second plurality ... | 07/13/2010 |
| 7568398 | Ultrasonic flow sensor with repeated transmissions A transit-time flow sensor determines a rate at which fluid flows by measuring a propagation time difference between upstream and downstream acoustic transmissions. This may involve providing an acoustic path consisting of sequentially traversed path segments and a ... | 08/04/2009 |
| 7500403 | Ultrasonic flow sensor having interlaid transmitting and receiving elements An ultrasonic flow sensor for measuring the volumetric flow rate of a flowing medium through a flow channel having a transducer array which is situated within the flow cross section of the flow channel and which generates ultrasonic waves which propagate in the flow... | 03/10/2009 |
| 7380470 | Ultrasonic flow meter including turbulators Measuring volume flows or mass flows in the intake system of motor vehicle internal combustion engines plays an important role in reducing harmful emissions. Therefore, an ultrasonic flow meter for measuring a flow velocity of a fluid flowing in an essentially lamin... | 06/03/2008 |
| 7369230 | Apparatus and method for measuring particulate flow rate An apparatus for measuring the rate of flow of a volume of particulate material comprising a transparent tube of known cross-sectional area, means for supplying a flow of particulate material through the transparent tube, and an optical signal sensor for receiving a... | 05/06/2008 |
| 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 |
| 7363800 | Apparatus and method for measuring compositional parameters of a mixture An apparatus for measuring compositional parameters of solid, liquid, and gas components of a mixture flowing in a pipe is presented. The apparatus combines three different compositional measurements (e.g., the speed of light (microwave), the speed of sound (sonar),... | 04/29/2008 |
| 7360447 | Flow meter having a reflector with spherical-concave surface The invention relates to a flow meter for liquid or gaseous media, the flow meter has a measuring channel through which the medium flows, at least one inlet channel and at least one outlet channel and also at least one pair of ultrasound converters for emitting and ... | 04/22/2008 |
| 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 |
| 7333901 | Transmitter system The present invention intends to provide a small, low-cost, convenient transmitter system. The transmitter system detects physical quantities, converts the physical quantities into electrical signals, and allows the electrical signals to be transmitted to a load thr... | 02/19/2008 |
| 7330797 | Apparatus and method for measuring settlement of solids in a multiphase flow A method and apparatus for measuring a parameter of a flow passing through a pipe is provided, wherein the apparatus includes at least two spatial array of sensors disposed at different axial locations along the pipe, wherein each of the sensors provide a signal ind... | 02/12/2008 |
| 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 |
| 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 |
| 7291114 | System and method of determining an individualized drug administration protocol A system and method for determining an individualized drug dosage is provided. The system includes a metabolic rate sensing means for sensing the metabolic rate of the individual. The system also includes a computing device having a processor, a memory, an input dev... | 11/06/2007 |
| 7290455 | Driver configuration for an ultrasonic flow meter A method and system for driver configuration for an ultrasonic meter. At least some of the illustrative embodiments are ultrasonic meters comprising a spool piece that couples within a flow of fluids, a first upstream transducer mechanically coupled to the spool pie... | 11/06/2007 |
| 7287437 | Flow meter for fluid or gas-like media The invention relates to a flow meter for liquid or gaseous media, the flow meter has a measuring channel through which the medium flows, at least one inlet channel and at least one outlet channel and also at least one pair of ultrasound converters for emitting and ... | 10/30/2007 |
| 7287436 | Ultrasonic measuring device including a reflection device An ultrasonic measuring device having at least one ultrasonic transducer, an analyzer circuit, and a reflection surface provided within a flow pipe for a gaseous medium. The first ultrasonic transducer and the second ultrasonic transducer are inclined toward one ano... | 10/30/2007 |
| 7275421 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe 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 at least one parame... | 10/02/2007 |
| 7257495 | Flow meter filter system and method A flow meter filter system (200) according to an embodiment of the invention includes a noise pass filter (203) configured to receive a first version of a flow meter signal and filter out the flow meter data from the flow meter signal to leave a noise ... | 08/14/2007 |
| 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 |
| 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 |
| 7245385 | Characterizing unsteady pressures in pipes using optical measurement devices An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe comprises an optical measurement device and a signal processor. The optical measurement device provides output signals indicative of unsteady pressures within the fluid a... | 07/17/2007 |
| 7240566 | Device for positioning a clamp-on flowmeter on a container An apparatus for the positioning of a clamp-on flow measuring device on a containment, which has a medium flowing through it. The apparatus includes at least two ultrasonic transducers, which emit measuring signals into the containment and/or receive measuring signa... | 07/10/2007 |
| 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 |
| 7222784 | Transmission base flow control device A transmission base flow control device including a first credit counter, shared by an active system and a preparatory system of a reception device, managing a credit value of the active system; a second credit counter and a third credit counter counting the credit ... | 05/29/2007 |
| 7213445 | Acoustic particulates density sensor A technique for determining particulate density in a fluid monitors the changes in the speed of sound. Since the speed of sound is intimately related to the composites of the air mixture and since the speed of sound of clean air at any temperature and humidity can b... | 05/08/2007 |
| 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 |
| 7204142 | Liquid level detecting apparatus A guide pipe is formed from a metal material, and its internal cross section has a circular shape whose diametric dimension gradually becomes smaller with a distance from an ultrasonic sensor. That is, the guide pipe is formed so that a route for transmitting an ult... | 04/17/2007 |
| 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 |
| 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 |
| 7194907 | Method for measuring part thickness having an external coating using impedance matching delay lines An ultrasonic transducer for measuring a part with a coating having at least one acoustic transducer, and a buffer delay line having an impedance matched to an impedance of the coating. ... | 03/27/2007 |
| 7194363 | Ultrasonic flowmeter A low power ultrasonic flowmeter to be powered by a two wire power supply loop is described, comprising: an ultrasonic flow sensor, a signal processing unit for determining a measurement result based on measurements performed by the ultrasonic flow sensor, an input/... | 03/20/2007 |
| 7181955 | Apparatus and method for measuring multi-Phase flows in pulp and paper industry applications The consistency of a pulp slurry in a pipe 12 is determined using a pair of effective sound speeds a1eff and a2eff of the fluid/pipe system. The pair of effective system sound speed measurements are taken at two sensing regions X1 | 02/27/2007 |
| 7181981 | Ultrasonic tomograph, system and method for ultrasonic tomographic measurement using same The invention relates to an ultrasonic tomograph for spatial and temporal characterisation of fluids in motion such as air and water. This tomograph comprises a plurality of pairs of emitting-receiving ultrasonic probes, whereas each pair may be inscribed, diametral... | 02/27/2007 |
| 7171315 | Method and apparatus for measuring a parameter of a fluid flowing within a pipe using sub-array processing A parameter of a fluid passing through a pipe is measured using a spatial array of sensors disposed at different axial locations along the pipe. The spatial array includes at least two overlapping sub-arrays. Using the pressure signals, a signal processor determines... | 01/30/2007 |
