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| Number | Title | Issue Date |
| 8175822 | Method for measuring the pressure and/or molar mass of a gas in a housing, and corresponding measurement assembly The invention relates to a method for measuring the pressure and/or molar mass of a gas in a housing, the measure being carried out via an acoustic sensor, said acoustic sensor at least one transducer (5), an electric system (8) connected to the transd... | 05/08/2012 |
| 8165830 | Meter electronics and methods for determining a phase difference between a first sensor signal and a second sensor signal of a flow meter Meter electronics (20) for processing sensor signals in a flow meter is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a first sensor signal and a second sensor signal a... | 04/24/2012 |
| 8073640 | Controlled compressional wave components of thickness shear mode multi-measurand sensors The current invention relates to a conductivity-dielectric (CD) electrode design with apertures that allow compressional waves to propagate away from the surface of the acoustic wave device unimpeded. This prevents reflection of compressional waves that would intera... | 12/06/2011 |
| 8060320 | 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... | 11/15/2011 |
| 7953564 | 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... | 05/31/2011 |
| 7844405 | Static and ultrasonic methods for measuring compressibility and density of small particles A method of measuring the compressibility, and/or the density, of small particles, and especially nano-particles, in suspension is described. The static method uses steady pressures and measures the d-c (static) compressibility of particles. The ultrasonic method ut... | 11/30/2010 |
| 7831398 | Method for quantifying varying propagation characteristics of normal incident ultrasonic signals as used in correlation based flow measurement According to the present invention, a method is provided for sensing a fluid flow within a pipe having a lengthwise axis to determine a parameter of the fluid flow. The method includes the following steps: a) providing an array of more than two ultrasonic sensors, e... | 11/09/2010 |
| 7783434 | Mass flow meter having an oscillation sensor and method for eliminating noise signals from the measurement signal Mass flow meter having at least one measurement tube, through which mass flows, as an oscillation body which can be set in mechanical oscillation by means of an excitation unit, the oscillation behavior of which varying as a function of the mass flow can be recorded... | 08/24/2010 |
| 7774150 | Meter electronics and methods for determining one or more of a stiffness coefficient or a mass coefficient A meter electronics (20) for a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a vibrational response and a processing system (203). The p... | 08/10/2010 |
| 7711501 | 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... | 05/04/2010 |
| 7643949 | 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... | 01/05/2010 |
| 7584065 | Doppler ultrasonic flowmeter, and processor and method thereof with quantization error correction In a Doppler ultrasonic flowmeter, to obtain a precise flow rate a flow rate calculation equation that corrects a quantization error occurring to a spatial resolution is used. An ultrasonic transducer transmits/receives ultrasonic pulses, and subject the resulting r... | 09/01/2009 |
| 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 |
| 7444246 | System and method for determining fluctuating pressure loading on a component in a reactor steam dome A system and method for accurately estimating the fluctuating pressure loads on components, such as steam dryers, within a BWR steam dome using pressure time history measurements made on components of the BWR facility external to the steam dome. The method uses exis... | 10/28/2008 |
| 7426852 | Submersible meter for measuring a parameter of gas hold-up of a fluid A submersible meter is provided that measures the speed of sound propagating in an aerated fluid to determine any one of a plurality of parameters of the fluid, such as the gas holdup of the fluid (εb), the bubble size (db), the bubble surface... | 09/23/2008 |
| 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 |
| 7398166 | Method and apparatus for the measurement of the acoustic impedance A probe located in an area to be measured has an acoustic stimulator, (e.g., a loudspeaker and a microphone). The stimulator sends acoustic signals to the microphone where the signals are transformed into electrical signals and transferred to an analysis unit. Using... | 07/08/2008 |
| 7386352 | Modular sensor network node A distributed wireless sensor network node is disclosed. The wireless sensor network node includes a plurality of sensor modules coupled to a system bus and configured to sense a parameter. The parameter may be an object, an event or any other parameter. The node co... | 06/10/2008 |
| 7376522 | Method and system for determining the direction of fluid flow In an exemplary implementation of a method and system for determining the direction of fluid flow, one or more sound transducers are positioned in proximity to a conduit, each such sound transducer generating a signal representative of a selected characteristic of a... | 05/20/2008 |
| 7363174 | Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effect An apparatus and method for measuring a flow velocity profile of fluid traveling in a pipe or conduit uses an ultrasonic wave transmitted from an ultrasonic wave transducer mounted at an angle on the outside of a pipe using a wedge, and made incident onto the fluid ... | 04/22/2008 |
| 7360417 | Fluid level detector A fluid detector for determining a presence of a fluid within a container includes a piezoelectric element that outputs a first ultrasonic signal in response to an input electrical signal and a lens with an upper portion and a lower portion. The piezoelectric elemen... | 04/22/2008 |
| 7343252 | Method, system and apparatus for passively monitoring the maintenance and distribution of fluid products to heavy work vehicles A method and apparatus for passively monitoring the distribution of fuel and lubrication fluids to track vehicles and other heavy duty work equipment, such as bulldozers, draglines, scrapers, loaders, etc. The system includes means for identifying and recording the ... | 03/11/2008 |
| 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 |
| 7340380 | Method and device for the exchange and processing of data into fusion data A method and a device for the exchange and the processing in common of object data between sensors and a processing unit, position data and/or speed data and/or additional object attributes (size, identification, markings) of sensor objects and fusion objects being ... | 03/04/2008 |
| 7334452 | Method for characterizing materials by using a mechanical resonator Methods for monitoring a fluid composition include placing a mechanical resonator in the fluid composition and oscillating the resonator. The resonator can be a tuning fork resonator having tines oscillated in opposite directions and in opposite phases. A variable f... | 02/26/2008 |
| 7321846 | Two-wire process control loop diagnostics A diagnostic device for coupling to a process control loop includes digital communication circuitry configured to receive a digital communication signal from the process control loop. The digital communication signal is a digitally modulated analog signal on the pro... | 01/22/2008 |
| 7319934 | Method and device for determining the acoustic parameters of fluids in a resonator device A method for determining acoustic parameters of a liquid (1) in a resonator arrangement having a resonator chamber (2) includes the following steps: acoustic excitation of the liquid in the resonator chamber (2) in such a way that a sequence of ... | 01/15/2008 |
| 7313488 | 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... | 12/25/2007 |
| 7302830 | Flow detectors having mechanical oscillators, and use thereof in flow characterization systems An improved system, device and method for characterizing a fluid sample that includes injecting a fluid sample into a mobile phase of a flow characterization system, and detecting a property of the fluid sample or of a component thereof with a flow detector comprisi... | 12/04/2007 |
| 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 |
| 7299697 | Method and system for inspecting objects using ultrasound scan data A method and apparatus for estimating a depth of a crack from ultrasound scan data are provided. The method includes mapping multiple amplitude responses from the ultrasound scan data, each mapped amplitude response being representative of a signal from one of the s... | 11/27/2007 |
| 7290450 | Process diagnostics A diagnostic device for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flow... | 11/06/2007 |
| 7274621 | Systems and methods for flow measurement A system estimates flow parameters associated with a fluid flow encountering a bluff body. The system includes multiple sensors distributed on a surface of a bluff body. The system further includes input circuitry and a sensor processing unit. The input circuitry re... | 09/25/2007 |
| 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 |
| 7266989 | Sensor system for high-precision measurements of temperature, composition, and/or pressure of a fluid A sensor system immersible in an ambient-fluid for sensing at least two conditions of the ambient fluid, includes a sealed chamber filled with a reference fluid of a known composition and/or pressure, and two acoustic transmission channels, one including the referen... | 09/11/2007 |
| 7255196 | Windshield and sound-barrier for seismic sensors A system and method for reducing acoustic, wind or other background noise that may interfere with sensing of a seismic signal is provided. More specifically, a shield is provided to enclose a geophone and thereby protect it from harmful noise. The shield may compris... | 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 |
| 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 |
| 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 |
| 7232545 | Sensor for determining concentration of fluid sterilant A sensor for detecting hydrogen peroxide, comprising an element exhibiting piezoelectric properties having a metal-oxide-containing coating, the metal-oxide having a divalent or tetravalent state. ... | 06/19/2007 |
