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6687626 Apparatus for measuring distribution of flow rates of flowable medium  
A flux distribution measuring apparatus measures distribution of flow rates of a flowable medium. The measuring apparatus includes thin metal wire(s) for scanning a flowable medium and lead wires...
6684174 Wind gauge  
A wind gauge apparatus and method. An illustrative embodiment includes a microphone positioned to engage wind pressure from a first relative direction and a controller coupled to receive an audio...
6681189 Method and system for determining flow rates and/or fluid density in single and multiple-phase flows utilizing discharge coefficient relationships  
According to one embodiment of the invention, a computerized method for determining a flow rate of a fluid flowing through a conduit having an obstruction flow meter includes receiving a β ratio...
6678624 Apparatus, methods and computer program products for generating mass flow calibration factors using a normal modal dynamic characterization of a material-containing conduit  
A calibration factor for a sensor including a material-containing conduit and a plurality of motion transducers operative to generate motion signals representing motion of the conduit is...
6675110 Testing valve assemblies  
A method of determining flow through a valve includes determining a first differential pressure across the valve. The valve is bypassed and a second differential pressure is determined across the...
6675073 System and method for tuning the weight control of a flow of material  
The present invention includes a system and method for fine tuning the process of controlling the weight of a flow of material, such as a rod of material in a production facility. A control...
6675111 Method and apparatus for measuring flow velocity and method and apparatus for measuring flow rate  
Disclosed is a method and apparatus for measuring flow velocity and flow rate of a fluid in a tube member or the like with high precision. A flow vel0ocity measuring method has: a step of allowing...
6671583 Vacuum system information network  
A vacuum network control system includes a vacuum network controller hub communicating over a public high-speed network, where the hub has an address registered with respect to the non-local...
6662117 Particle analyzer and particle classifying method  
A particle analyzer includes a detecting section for detecting at least two kinds of parameters from a plurality of particles included in a sample, the two kinds of parameters representing...
6662120 Excitation circuits for coriolis mass flowmeters  
Such an excitation circuit is intended for use in a Coriolis mass flowmeter which is connected to, is powered exclusively from, and outputs a measurement signal exclusively via, a two-wire process...
6662121 Thermal fluid sensor, fluid discriminating apparatus and method, flow sensor, and flow rate measuring apparatus and method  
When a micro-heater heats fluid using an external driving current, an upstream thermopile 8 detects the temperature of the fluid before it is heated to produce a first temperature detected signal...
6643610 Process transmitter with orthogonal-polynomial fitting  
A transmitter for measuring a process variable includes a sensor configured to couple to a process and having a sensor output related to the process variable. A microprocessor coupled to the...
6622096 Method of setting flow coefficient and flow meter using the same  
The present invention relates to a method of setting a flow coefficient used in a flow meter for measuring a flow rate of a fluid, and a flow meter having the flow coefficient which is set by the...
6618680 Signal processor apparatus for rotating water current meter  
The present invention comprises a hand held, battery operated water current velocity measuring device designed for use with contact closure water current meters. The apparatus differentiates and...
6615145 Determination of particle character in a vertically flowing fluid  
An apparatus and method for determining particle character moving with a vertical fluid flow towards a multiplet of calibrated sediment traps. The number N of measuring locations, which coincides...
6611769 Meter register with programming and data port and meter input resolution factor  
An electronic, programmable meter register (10) includes an input section (18, 19, 30) for generating pulses in response to units of flow in a water meter, a stored control program (46), a...
6611770 Liquid conduction indication in a magnetic flowmeter  
A magnetic flowmeter with an improved liquid conduction indication has a flowtube assembly with a passage for liquid flow and has an electromagnet mounted outside the passage that provides ramped...
6609069 Method and apparatus for determining the flow velocity of a fluid within a pipe  
A method and corresponding apparatus for measuring the flow velocity of a fluid in an elongated body by sensing at more than one location along the elongated body, vortical disturbances convecting...
6606916 Timed window ultrasonic gas meter with nose cone  
An ultrasonic fluid flow meter (50) measures the flow speed of a fluid by measuring the time, in each direction, for a sequence of ultrasonic pulses (55) to pass between two transducers (54A,54B)...
6606571 Microwave flow sensor for a harvester  
A flow sensor for use in a harvester is disclosed. The flow sensor has a microwave transceiver for transmitting a microwave signal and receiving a reflected microwave signal, an in-phase mixer...
6606573 Sensor apparatus, methods and computer program products employing vibrational shape control  
A parameter sensor including a conduit configured to contain a material is controlled. A first excitation applied to the conduit is determined. Motion of the conduit in response to the first...
6606572 Circuit arrangement for deriving the measured variable from the signals of sensors of a flow meter  
In a circuit arrangement for deriving the measured variable from the signals (S1 to S2) of at least two sensors (23, 24) of a flow meter, which flow meter comprises one or several parallel fluid...
6604053 Method for measuring flow rate of a continuous fluid flow  
A method for measuring flow rate of a continuous fluid flow is shown. The method comprises the steps of generating a first signal representing a height of the fluid flow having a known...
6601000 Device and method for volume determination  
A device for conveying a medium from a container to a tank and for determining the quantity of the medium, having a conduit between the container and the tank, a conveying device connected to the...
6594593 Performance assessment of controllers applied to integrating processes  
A method for determining the performance of controllers applied to integrating processes requiring only closed-loop data and equipment parameters. A numerical measure is calculated which is a...
6587796 Ultrasonic flowmeter  
An ultrasonic flowmeter, wherein upstream and downstream receive signals are A/D-converted and thereby the discrete values thereof are determined; a cross-correlation between the upstream and...
6577958 Surveillant concurrent engineering process tool for environment rendering (SCEPTER) for resin flow monitoring in composites  
The invention presents a new methodology to monitor and display the resin flow during fabrication of organic matrix composite laminates in real-time or near real-time and includes data...
6571180 Self-contained steam trap monitor  
A self-contained system to continuously monitor a mechanism used to process, control or regulate fluid flow or pressure and provide a continuing indication of the status or condition of the...
6567755 Metering equipment  
Metering equipment for metering fluid flow through an injector valve, comprising metering means and locating means arranged to locate such a valve in fluid communication with the metering means....
6564157 On-line device for predicting at least one fluid flow parameter in a process  
An on-line device for predicting at least one fluid flow parameter in a process includes structure and/or function whereby a flow domain has disposed therein a pre-determined portion in which a...
6556929 Device for detecting a pulsating quantity  
A device for detecting a pulsating variable, for instance the air flowing in the intake tube of an engine, is disclosed in which the signal processing and the correction of the pulsation error are...
6542832 Error detection and correction system for use with dual-pulse output metering devices  
An error correction and detection system for a dual-pulse output metering device is provided. The system detects errors in the dual-pulse output of the metering device by comparing the current...
6539316 Phase detector  
A method for detecting a phase difference between first and second input signals is provided. The method includes modulating a duty cycle of first and second intermediate signals from a first duty...
6539315 Regulator flow measurement apparatus  
Apparatus for determining fluid flow through a pressure regulator is disclosed. The pressure regulator is disposed in a fluid flow passage and has a throttling element moveable in the flow...
6535830 Scaled quadrature pulse signal generator  
A scaled quadrature pulse output signal is generated for representing direction and volume in predetermined increments of the flow of a liquid or a gas through a meter. An unscaled pulse signal is...
6535826 Mass flowmeter methods, apparatus, and computer program products using correlation-measure-based status determination  
Motion signals representing motion of a conduit of a mass flowmeter are mode selective filtered to generate a plurality of mode selective filtered motion signals such that the plurality of mode...
6532423 Method for determining fluid flow characteristic curves of heat-dissipating system  
A method for determining a plurality of fluid flow characteristic curves of a heat-dissipating system, wherein each fluid flow characteristic curve is a relationship curve of one of an air...
6526358 Model-based detection of leaks and blockages in fluid handling systems  
A fault detection and isolation system for detecting leaks and blockages in a fluid handling system having at least one component through which fluid flows includes sensors for measuring fluid...
6526357 Associated parameter measuring and/or monitoring such as in the evaluation of pressure differences  
Correction quantities are generated for yielding closer approximations of actual parameters. These are obtained by preliminarily subjecting parametric transducers to pre-selected parametric values...
6522980 Method and algorithm for predicting leak rates  
A method and algorithm for predicting the fluid loss rate of a system, uses data for the leak rate from the system for a substitute fluid that leaks at a different rate than the system fluid. In...
6512983 Method for determining the controller output for controlling fuel injection engines  
A method for adjusting the torque in an internal combustion engine is introduced having the steps: determining a desired torque; determining an operating point from measured values for air charge...
6510746 Gas flow measurement  
A method for approximating compressible flow is described that is applicable across any pressure range of interest uses upstream and downstream pressure. The approximation minimizes variance with...
6505517 High accuracy signal processing for magnetic flowmeter  
A magnetic flowmeter for measuring flow of a conductive fluid includes a flow tube assembly adapted to receive a fluid flow and a coil configured to apply a magnetic field in the fluid flow...
6505131 Multi-rate digital signal processor for signals from pick-offs on a vibrating conduit  
A digital signal processor for determining a property of a material flowing through a conduit. The digital signal processor of this invention receives signals from two pick-off sensor mounted at...
6493642 Method of determining mass flow rate by the Coriolis principle  
A method of correcting the phase difference between first and second data signals from a Coriolis flowmeter using three parallel input stages which process the signals and a pair of phase...
6490531 Optimized method for determining physical parameters of a sample subjected to centrifugation  
A method for faster determination of physical parameters (capillary pressure curves and relative permeabilities for example) of a geologic sample initially saturated with a first fluid placed in a...
6487507 Remote signal conditioner for a Coriolis flowmeter  
Meter electronics for a Coriolis flowmeter capable of being intrinsically safe. A signal conditioner receives power from a power supply in a host system remote from the signal conditioner. Drive...
6480812 Vortex flowmeter  
The invention encompasses a vortex flowmeter for measuring the flow rate of a fluid by detecting an alternating signal produced by Karman vortices using a sensor comprising a low pass filter for...
6480793 Flow condition monitor  
A system and method of detecting and monitoring flow conditions in the coolant of a nuclear reactor that relies upon acoustic or optical differences in the various flow conditions. The system uses...
6473698 Method and apparatus for automated rolling leukocyte velocity measurement in vivo  
A time-varying image of a circulating venue containing a flow of particles is generated by imaging using a video camera and a digital frame grabber. Spatio-temporal intensity gradients within each...