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9027414 Ultrasonic flow rate measurement device with temperature sensing circuit  
An ultrasonic flow rate measurement device capable of sensing and correcting a temperature without use of a sensor specifically designed for measuring a temperature is provided. The ultrasonic...
9003895 Conditioner, apparatus and method  
The present invention pertains to a flow conditioner for displacing and mixing fluid flow to minimize the effects of thermal gradients on the accuracy of a transit time ultrasonic flowmeter and...
8978482 Partition plate securement for an ultrasonic flow meter  
An ultrasonic flow rate measuring device includes a flow path, a partition plate that is inserted from an aperture to partition the flow path into plural sections, an ultrasound transmission body,...
8955392 Ultrasonic flowmeter with integrally formed acoustic noise attenuating feature  
A flowmeter has a one-piece conduit with an outer surface and an inner surface that define a wall thickness therebetween, and first and second transducers, where each transducer is disposed...
8904878 Ultrasonic flow measuring system including a mounting latch for mounting the transducers to the measuring tube  
A measuring tube, a measuring system and a method for determining and/or monitoring flow through a measuring tube, comprising a measuring tube, on which ultrasonic transducers are releasably...
8904880 Methods and systems for low-cost aerial relay  
A method for relaying a radio signal between two points having an obstacle therebetween is described. The method includes maintaining an unmanned aerial vehicle (UAV) in an orientation with...
8903663 Flow measurement device  
To find the propagation time of an ultrasonic wave, a difference occurs between the waveforms received upstream and downstream in a portion where the reception amplitude is comparatively large and...
8893560 Flow meter assembly, gate assemblies and methods of flow measurement  
The present invention provides an acoustic flow meter assembly (2) for pipes or open channels, said assembly including a frame (24) with a predetermined geometry. The frame has at least one user...
8875587 Ultrasonic flow measuring system and method for monitoring fluid flow having measuring tube inlet and outlet axis forming and angle not equal to 90° with the measuring tube axis  
A measuring tube, a measuring system and a method for determining and/or monitoring flow through a measuring tube, comprising a measuring tube, on which ultrasonic transducers are releasably...
8806958 Ultrasonic air flow sensor  
A flow sensor includes a plurality of ultrasonic transceivers and signal processing circuitry. The transceivers are coupled to a portion of the outer surface of a duct, and each is configured to...
8806734 Flowmeter and method  
A method of producing an ultrasonic flow meter having the steps of fabricating a tube made of a sound absorbing material. There is the step of machining in the tube a channel having a constant...
8776613 Ultrasonic measurement apparatus having a deflection unit forming a loop  
An ultrasonic measurement apparatus (10) for measuring the flow velocity of a fluid is provided which flows in a pipeline in a main flow direction, wherein the ultrasonic measurement apparatus...
8714030 Non-invasive tranducers for ultrasonic transit time flow meters  
An ultrasonic flow meter permitting easy insertion and removal of a tube or conduit. A partial ring transducer or partial cylinder transducer is used to permit easy insertion and removal of a...
8639462 Method and system for determining the time-of-flight of a signal  
A method of estimating the time of flight of a burst signal includes: receiving the burst signal; determining the slope of the phase characteristic of the Fourier transform of the received burst...
8590397 Ultrasonic flow meter including a transducer having conical face  
An ultrasonic transducer for a pipe includes an ultrasonic source which produces plane waves. The transducer includes a housing having a face at least a portion of which is curved through which...
8584531 Ultrasonic gas flow measurement device including a dumbbell-shaped flow tube to increase gas flow speed  
An ultrasonic gas flow measurement device includes a dumbbell-shaped tube, a first ultrasonic transceiver, a second ultrasonic transceiver, a first cover part, a second cover part and a control...
8544344 Ultrasonic type flow sensor  
First and second piezoelectric transducers 2 and 3 are fixed to a tubular main body 1 via first and second fitting bases 4 and 5. On front and rear surfaces of an end portion of each of the first...
8548755 Flow rate measurement device  
Switching a transmitting and receiving direction of two transducers (2,3) in the forward and the reverse direction, a time differential memory part (17b) storing a propagation time differential...
8544343 Chordal gas flowmeter with transducers installed outside the pressure boundary  
A flowmeter for detecting gas flow rates in a pipe includes a container configured to be attached to the pipe having a channel through which the gas flows, and a plurality of recesses. Each recess...
8534138 Chordal gas flowmeter with transducers installed outside the pressure boundary, housing and method  
A flowmeter for detecting gas flow rates in a pipe includes a container configured to be attached to the pipe having a channel through which the gas flows, and a plurality of recesses that extend...
8528418 Flow meter having a thermal decoupling element separating an ultrasonic transducer and the flow pipe  
A flow meter for use in a flowing fluid medium includes at least one ultrasonic transducer and at least one measuring section having at least one flow pipe through which a fluid medium flows in a...
8522624 System and method for pressure balancing a flow meter  
A system is provided with a pressure balancing system configured to protect a flow meter. The pressure balancing system includes a housing configured to surround a fluid conduit to define a fluid...
8522623 Ultrasonic flowmeter having pressure balancing system for high pressure operation  
A system is provided with an ultrasonic flow meter. The ultrasonic flow meter includes a first ultrasonic transducer disposed about a fluid flow path, and a pressure balancing system configured to...
8505391 Flange mounted ultrasonic flowmeter  
An ultrasonic transducer includes a piezoelectric element that is attached to a sonic lens, a support ring that holds the piezoelectric element, a flange, and a spoke. One end of the spoke is...
8490498 Measuring tube of a measuring system for determining and/or monitoring flow of a measured medium through a measuring tube by means of ultrasound  
A measuring tube, a measuring system and a method for determining and/or monitoring flow through a measuring tube, comprising a measuring tube, on which ultrasonic transducers are releasably...
8489342 Methods and apparatus for fluid flow measurement  
A fluid flow meter estimates the velocity of water or another fluid flowing through pipe by comparing measurements of the water velocity to one or more pre-determined templates. The fluid flow...
8485045 Foam free testing systems and methods  
A system(s) and method(s) of testing the foam delivery system(s) of fire suppression systems. Systems are adapted to test the foam delivery system of a fire suppression system under test while...
8474327 Flow meter assembly, gate assemblies and methods of flow measurement  
The present invention provides an acoustic flow meter assembly (2) for pipes or open channels, said assembly including a frame (24) with a predetermined geometry. The frame has at least one user...
8413524 Acoustic matching member, ultrasonic transmitter/receiver, and ultrasonic flowmeter  
An acoustic matching member is fitted to a main body in a pair of ultrasonic transmitter/receivers. The acoustic matching member includes a matching member equipped with a porous body adhered...
8412481 Method and apparatus for determining operational condition of pollution monitoring equipment  
A method for determining an operational condition of a particle detection system including at least one sample inlet for receiving a sample flow from a monitored region. The method includes the...
8408072 Coupling element for an ultrasonic flow measuring device  
A coupling element for an ultrasonic, flow measuring device, wherein the coupling element has a pedestal with a bearing surface, on which bearing surface a piezoelement is applied. The pedestal is...
8374806 Ultrasonic phase-shift detection device  
An ultrasonic phase-shift detection device includes a clock generator, a divider, a first counter, a comparator, a phase detector and a second counter. The divider is provided for dividing the...
8356522 Ultrasonic flow meter with a liquid drainage system  
An ultrasonic flow meter for measuring the flow of a fluid through a pipeline comprises a spool piece including a throughbore and a transducer port. The transducer port extends along a central...
8347734 Method and measuring system for determining and/or monitoring flow of a measured medium in a measuring tube  
A measuring system and method for determining and/or monitoring the flow of a measured medium through a measuring tube with a first ultrasonic sensor and at least a second ultrasonic sensor. The...
8347733 Conditioner, apparatus and method  
The present invention pertains to a flow conditioner for displacing and mixing fluid flow to minimize the effects of thermal gradients on the accuracy of a transit time ultrasonic flowmeter and...
8245581 Flowmeter and method  
A flowmeter for detecting fluid flow rates in a pipe includes a tube having a channel disposed in the pipe through which fluid in the pipe flows. The flowmeter includes an upstream transducer in...
8239157 Method and apparatus for directing the use of a coriolis flow meter  
A method and apparatus is disclosed that guides a user through a sequence of steps that will allow the user to complete a predefined task using the flow meter. The steps include: selecting a...
8215183 Augmented surface sensor for measuring flow velocity  
A system and method for measurement of flow parameters in a sewer pipe that may be partially or completely filled. Flow parameters may include flow velocity, flow volume, depth of flow and...
8181536 Ultrasonic Flow Meter including a transducer having conical face  
An ultrasonic transducer for a pipe includes an ultrasonic source which produces plane waves. The transducer includes a housing having a face at least a portion of which is curved through which...
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...
8141434 Flow measuring apparatus  
A flow measuring apparatus measures a fluid flow within a conduit including a wall. The apparatus includes a transducer arrangement including at least two transducers for alternately emitting and...
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...
8091435 Ultrasonic measuring arrangement  
An ultrasonic measuring arrangement (1) for the flow, speed of sound, density, viscosity and/or temperature measurement of flowing media, including a measurement tube (2) having a measurement...
8065922 Flow metering device for an aspirated smoke detector  
A method and apparatus for determining flow in an aspirated smoke detector system includes a plurality of sampling pipes in fluid communication with a smoke detector, a flow rate detector in at...
8047082 Device for determining a mass flow of a first gas within an overall mixture of gases  
A device is provided for determining a mass flow of a first gas flowing in a flowing channel of an internal combustion engine of a motor vehicle. The device includes: sound transducers arranged at...
7987731 Ultrasonic flowmeter including an oscillation start unit for acceleration stability of the oscillator  
The present invention provides an ultrasonic flowmeter comprising an oscillator and an oscillation start unit for accelerating oscillation of the oscillator. The oscillation start unit accelerates...
7975559 Apparatus for attenuating ultrasonic waves propagating within a pipe wall  
A damping device for a fluid flow meter is provided. The fluid flow meter is mountable on the exterior of a pipe to meter fluid flow traveling within the pipe. The flow meter has at least one...
7966893 Adjusting transducer frequency without ceasing fluid flow through a meter  
A method comprises, without ceasing flow of fluid through a flow meter, transmitting an ultrasonic signal of a first frequency through the fluid, adjusting the first frequency to a second...
7963177 Apparatus for attenuating ultrasonic waves propagating within a pipe wall  
A damping device for a fluid flow meter mountable on the exterior of a pipe to meter fluid flow traveling within the pipe is provided. The flow meter has at least one ultrasonic sensor operable to...
7963176 Clamp-on ultrasonic flow rate measuring device having a guide frame for guiding the ultrasonic transducer  
An ultrasonic flow rate measuring device, especially a clamp-on type, is mounted on a line through which medium flows with at least one ultrasonic transducer and a guide frame for guiding and...

Matches 1 - 50 out of 281 1 2 3 4 5 6 >