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7383741 Flow rate-measuring apparatus  
A flow rate-measuring apparatus comprises a housing having a passage for supplying a liquid thereto, and a pair of detecting sections provided at both ends of the housing, and which contain sonic...
7380469 Ultrasonic flow rate measuring device  
An ultrasonic flow rate measuring device, especially a clamp-on ultrasonic flow rate measuring device, with at least one ultrasonic transducer ( 8 ) for measuring the flow rate through a line...
7373840 Ultrasonic flowmeter having a transmitting body fixed on the outer peripheral surface of the pipe  
An ultrasonic flowmeter includes two ultrasonic transceivers ( 10, 16 ). Each of the ultrasonic transceiver ( 10, 16 ) includes a transmitting body ( 1; 12 ) fixed to the outer peripheral surface...
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...
7363125 Tracking system and autonomous mobile unit  
A tracking system of the present invention includes a transponder 20 attached on a moving object 2 and an autonomous mobile unit 1 for tracking the transponder 20 . The autonomous mobile...
7360449 Ultrasonic fluid measurement instrument having a plurality of split channels formed by partition boards  
An ultrasonic fluid measurement instrument is capable of highly accurate fluid measurement. A measurement part is provided forming a plurality of split channels partitioned by partition boards...
7360448 Ultrasonic flow sensor having reflecting interface  
An ultrasonic flow sensor that includes a conduit having a length, a first ultrasonic transducer disposed at a first position along the length of the conduit, a second ultrasonic transducer...
7341568 Method and device for determining blood volume during an extracorporeal blood treatment  
The invention relates to a method for determining blood volume during extracorporeal blood circulation, which is based on measuring the propagation rate or propagation time of the pulse waves...
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...
7299705 Apparatus and method for augmenting 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...
7289914 Ultrasonic flowmeter and ultrasonic flowmetering method  
An ultrasonic flowmeter casts an ultrasonic pulse toward a measurement line ML, processes ultrasonic echo signals, and calculates the position and speed of each ultrasonic reflector positioned...
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...
7243555 Transmitting and receiving circuitry for an ultrasonic flowmeter, and method for operating such transmitting and receiving circuitry  
A transmitting and receiving circuitry system for an ultrasonic flowmeter includes an ultrasound transducer interface for connection to an ultrasound transducer of the ultrasonic flowmeter, an...
7237441 Ultrasonic type fluid measurement device  
An ultrasonic fluid measurement instrument is capable of highly accurate fluid measurement. A measurement part is provided forming a plurality of split channels partitioned by partition boards...
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...
7201065 Acoustic flow sensor  
A fluid flow sensor uses pairs of acoustic transducers to generate quasi-helical acoustic beams reflected multiple times from an inside surface of a pipe. The transducers are arranged so that each...
7191666 Check valve module for flow meters  
The present invention relates to an apparatus and method for improved check valve technology used in flow meters, particularly compound/combo meters. The improved check valve technology may be...
7185547 Extreme temperature clamp-on ultrasonic flowmeter transducer  
A device for measuring flow in a pipe includes a first metal plate mounted to the pipe, the first metal plate including a first contact portion contacting a wall of the pipe and a first away...
7159472 Apparatus for determining fluid flow  
An apparatus for determining the flow rate of a fluid in a pipe. The apparatus includes a device for providing acoustic energy on a diametrical path through the fluid. The diametrical providing...
7152490 Methods for determining transducer delay time and transducer separation in ultrasonic flow meters  
Methods and related systems for determining transducer delay time and transducer separation in ultrasonic flow meters. At least some of the illustrative embodiments are a method comprising...
7096135 Method and system for calculating the transit time of an ultrasonic pulse  
An automated method and system for calculating the transit time of a pulsed signal transmitted from a first ultrasonic transducer to a second ultrasonic transducer is provided. The method includes...
7093502 Ultrasonic gas flowmeter as well as device to measure exhaust flows of internal combustion engines and method to determine flow of gases  
An ultrasonic gas flowmeter includes a measuring pipe with flowing gas, transmitting and receiving sound transducers, transmission and reception electronics, and evaluation electronics. The sound...
7082841 Ultrasonic flowmeter  
An ultrasonic flowmeter includes a transmission/reception means provided in a flow path for performing transmission/reception using a state change of fluid; repetition means for repeating the...
7075653 Method and apparatus for laser-based remote methane leak detection  
A method and apparatus for remote laser-based detection of gas at levels exceeding natural background levels preferably utilizing wavelength modulated tunable diode laser absorption spectroscopy....
7073395 Ultrasonic flowmeter and ultrasonic flow rate measuring method  
An ultrasonic flowmeter of the present invention includes: first and second ultrasonic transducers that send and receive an ultrasonic wave and are arranged so as to form a propagation path for the...
7058523 Electricity meter having gas consumption correction processing  
A metering arrangement includes a meter housing, a source of energy signals, a source of gas flow signals, a source of temperature signals, and a processing circuit. The meter housing is securedly...
7044000 Ultrasonic flow sensor using quasi-helical beam  
A probe type acoustic transit-time flow sensor has paired transducers arranged to generate quasi-helical acoustic beams making a plurality of reflective contacts with a pipe's interior wall. The...
7027936 Methods for measuring flow by means of an ultra sonic flow meter  
In a method for measuring flow by means of an ultra sonic flow meter, an ultra sonic signal is transmitted in an upstream and a downstream direction. This is measured upon receipt of an ultra sonic...
7024944 Ultrasonic flow meter  
The present invention proposes an ultrasonic flow meter, comprising a conduit for measurement in which a liquid flows therein, and a pair of measurement sections which are provided in said conduit...
6973842 Flow probe pipe size detector  
An acoustic time-of-flight size measuring device is added to the sensing head of an insertion probe sensor which may be used for measuring the flow of fluid in a pipe. The size-measuring device...
6950768 Self-tuning ultrasonic meter  
A method and related ultrasonic meter identify and correct for transit time errors such as peak switch errors. The method includes calculating values for a set of diagnostics from measurements of...
6947851 Transceiver circuit for an ultrasonic flowmeter  
A transmitting and receiving circuit for an ultrasonic flowmeter. In such circuits, an ultrasonic transducer is typically used as both transmitter and receiver. This is obtained by using switching...
6941821 Ultrasonic flowmeter including stable flow rate calculation means based on instantaneous flow rate  
In accordance with one embodiment, a flow meter of the present invention includes: transmission/reception means provided in a flow path for performing transmission/reception using a state change of...
6931945 Doppler ultrasonic flowmeter  
A Doppler type ultrasonic flowmeter has an ultrasonic transmitting means for emitting ultrasonic pulses from an ultrasonic transducer into a fluid pipe, a flow velocity profile measuring means for...
6925891 Ultrasonic flowmeter and method of measuring flow volume  
An ultrasonic flowmeter arranged to perform measurement with high accuracy has first and second ultrasonic transducers 1, 2 which transmit and receive ultrasonic waves, and which are placed so as...
6923073 Ultrasonic flow-measuring method  
An ultrasonic flow-measuring method measures the flow rate of a medium traveling through a measuring conduit by means of two ultrasound transducers which in the flow direction of the medium are...
6907792 Method for measuring flow of fluid moving in pipe or groove-like flow passage  
A flow rate of fluid moving within a tube having a small diameter can be measured by the steps of: preparing a structure that has first and second oscillation wave generating-detecting means on a...
6907361 Ultrasonic flow-measuring method  
An ultrasonic flow-measuring method determines the flow rate of a medium flowing through a line is determined by measuring the runtime of an ultrasonic signal that travels from a first ultrasonic...
6901812 Single-body dual-chip Orthogonal sensing transit-time flow device  
An ultrasonic sensor having a pair of ultrasound transducers adapted to be inserted in and being able to perform at a single site of introduction into a duct. The ultrasonic sensor measures a...
6886412 Ultrasonic-wave propagation-time measuring method and gas concentration sensor  
An ultrasonic-wave propagation-time measuring method and gas concentration sensor are disclosed in which a reception wave which has been transmitted and received by an ultrasonic element 5 is...
6854338 Fluidic device with integrated capacitive micromachined ultrasonic transducers  
The present invention provides fluidic devices and systems which have micromachined ultrasonic transducers integrated into microchannels. The ultrasonic transducers generate and receive ultrasonic...
6851322 Method and apparatus for determining flow velocity in a channel  
An ultrasonic flowmeter for measuring fluid flow are disclosed. The invention combines isolating conditioner technology with ultrasonic technology to determine flow velocity. The method and...
6842716 Method and apparatus for measuring the propagation time of a signal, in particular a ultrasonic signal  
Propagation time T p of an ultrasound signal between two spaced-apart transducers constituting an emitter and a receiver is measured. The emitter transducer is subjected to an excitation signal of...
6817250 Acoustic gas meter with a temperature probe having an elongated sensor region  
An acoustic gas meter has an acoustic transmitter/receiver arrangement disposed within a gas flow conduit for transmitting and receiving acoustic energy along an acoustic path. A temperature probe...
6796189 Ultrasonic flowmeter having sequentially changed driving method  
For the purpose of solving the above problems, the present invention includes: transmission/reception means provided in a flow path for performing transmission/reception using a state change of...
6782326 Flow rate measuring apparatus  
A flow rate measuring apparatus capable of accurately measuring a flow rate of fluctuating fluid. A mode setting circuit selectively sets any one of a plurality of predetermined transmission modes...
6776051 Ultrasonic transducer and ultrasonic flowmeter using same  
It is an object of the present invention to provide an ultrasonic transducer, which is so configured as to reduce the variations in characteristics, thereby to enable the stabilization of the...
6772643 Flow meter  
A flow meter measures a flow rate of fluid flowing through a flow passage based on a duration of propagation of an ultrasonic wave along the flow passage. A signal of the received ultrasonic wave...
6748811 Ultrasonic flowmeter  
An ultrasonic flow meter of the present invention includes: a measurement flow path 6 through which a fluid to be measured flows; ultrasonic transducers 8 and 9 provided respectively on an...
6745632 Method for measuring ultrasonic transit times  
Embodiments of the invention provide an algorithm for enhancing the transit time measurement of an ultrasonic wave through a fluid, and criteria for evaluating the suitability for various waveforms...
Matches 1 - 50 out of 263 1 2 3 4 5 6 >