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Class 73/61.79 - By vibration


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the determination is made by utilizing
No. of patents: 171
Last issue date: 09/23/2008


1          
NumberTitleIssue Date
7426852Submersible 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
7398685Measuring method using surface acoustic wave device, and surface acoustic wave device and biosensor device
A measuring method using a surface acoustic wave device, with which even in a case where a target substance having a different viscosity is added to a buffer liquid on the surface acoustic wave device it is possible to measure a mass load accurately without sufferin...
07/15/2008
7395712Testing of bottomhole samplers using acoustics
A method and apparatus for testing a hydrocarbon sample. The apparatus includes a sheath disposed about the hydrocarbon sample container and at least one set of acoustic sensors, wherein the at least one set of acoustic sensors is secured to the sheath, and further ...
07/08/2008
7389679Measurement cell and method for the analysis of liquids
This invention relates to a liquid measurement cell for micromechanical sensors, so-called cantilever sensors. These sensors are e.g. used for the detection of biomolecules without the need for fluorescent or radioactive labelling. These measurements are usually car...
06/24/2008
7367239Piezocable 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
7363800Apparatus 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
7357021Methods of monitoring downhole conditions
Methods of monitoring various downhole conditions are described, including a system for determining and/or identifying the flow of fluid in a well, determining sand production in a well, identifying localized events in a well, determining the apparent flow velocity ...
04/15/2008
7359803Apparatus 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
7340353Dual 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
7334452Method 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
7337075Apparatus and method for measuring parameters of a mixture having liquid droplets suspended in a vapor 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...
02/26/2008
7331232Measurement method and biosensor apparatus using resonator
A measurement method and a biosensor apparatus using a resonator with which it is not necessary to agitate a sample solution in a cell and even if the amount of the sample solution is very small the influence of pressure waves is greatly reduced and extremely easy a...
02/19/2008
7328624Probe 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
7322251Method 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
7322245Apparatus and method for measuring a fluid flowing in a pipe using acoustic pressures
In industrial sensing applications at least one parameter of at least one fluid in a pipe 12 is measured using a spatial array of acoustic pressure sensors 14,16,18 placed at predetermined axial locations x1, x2, x3 along the pipe ...
01/29/2008
7308820Piezocable 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
7302861Portable flow measurement apparatus having an array of sensors
A portable flow measuring apparatus includes an array of pressure sensors used to measure the acoustic and convective pressure variations in the flow to determine a desired parameter. A portable processing instrument processes the signals provided by the sensing arr...
12/04/2007
7295933Configurable 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
7275421Apparatus 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
7275437Acoustical cell for material analysis
An acoustical cell for analysis of materials by measuring parameters of acoustical resonanace. The cell comprises a main frame and an electroacoustical transducer assembly. The main frame includes at least one interstice and has substatially parallel exterior surfac...
10/02/2007
7257988Densitometer with pulsing pressure
Techniques for measuring a density of a liquid within a fluid that includes both a liquid and a gas are described. A pressure of the fluid oscillates according to a time-varying function, which causes a density of the fluid also to oscillate according to the same ti...
08/21/2007
7253742Method 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
7245791Compaction monitoring system
Methods for determining a preferred application of a plurality of transducers or sensors to a structure are disclosed for monitoring and imaging deformation of the structure as it is subjected to various forces. ...
07/17/2007
7240553Non-invasive detection and analysis of microorganisms in diary products packaged in paper or paperboard based laminated recipients using dry coupling elastic waves
The invention relates to a method and a device for the early detection of the presence of micro-organisms in food, particularly in milk and derivatives thereof. One of the main advantages of the invention lies in the fact that the aforementioned detection method can...
07/10/2007
7237440Flow 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
7236912Method and device for determining and/or monitoring a volume and/or mass flow
A method and a device for determining and/or monitoring the volume flow rate and/or mass flow rate of a medium flowing through a container. In the case of the device, such is an ultrasonic flow measuring device, which works on the basis of the travel-time-difference...
06/26/2007
7207397Multi-pole transmitter source
Methods and apparatus facilitating logging-while-drilling (LWD) using a multi-pole acoustic transmitter source. The multi-pole transmitter source enables measurement of formation velocities, including shear wave velocities through formations that are slower than vel...
04/24/2007
7197942Apparatus 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
7197938Contact-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
7191639On-chip magnetic force actuation of microcantilevers by coplanar coils
An on-chip coil is provided in a micromachined device for magnetic actuation of a nanoelectromechanical microcantilever. The novel geometry involves a three dimensional solenoid or planar coil carrying high current that generates a large enough magnetic field in its...
03/20/2007
7181955Apparatus 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
7171315Method 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
7165464Apparatus 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
7159653Spacer sub
The present invention involves a method and apparatus for communicating from within a wellbore to the surface of the wellbore, as well as communicating from the surface of the wellbore to downhole within the wellbore. More specifically, the present invention involve...
01/09/2007
7152460Apparatus 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
7152003Method and apparatus for determining a quality metric of a measurement of a fluid parameter
An apparatus for measuring a parameter of a fluid passing through a pipe includes a spatial array of at least two sensors disposed at different axial locations along the pipe. Each of the sensors provides a signal indicative of unsteady pressure within the pipe at a...
12/19/2006
7150202Method and apparatus for measuring characteristics of core-annular flow
An apparatus and method are disclosed wherein at least one parameter associated with a core-annular flow (CAF) in a pipe is measured by sensing unsteady pressures associated with undulations formed at the interface of a core region and an annular region in the CAF a...
12/19/2006
7146864Apparatus having a multi-band sensor assembly for measuring a parameter of a fluid flow flowing within a pipe
An apparatus measures the speed of sound and/or vortical disturbances propagating in a fluid flow to determine a parameter of the flow propagating through a pipe. The apparatus includes a sensing device that includes an array of pressure sensors used to measure the ...
12/12/2006
7140238Method for determining the composition of a fluid
Method for determining the composition of a homogeneous fluid, for example a petroleum effluent on flow, an emulsion consisting of water and oil, or a foam consisting of oil and gas. The attenuation and the phase shift of microwave beams that have traversed a...
11/28/2006
7140239System and technique for ultrasonic characterization of settling suspensions
A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and rec...
11/28/2006
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