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公开(公告)号：US20240255329A1
公开(公告)日：2024-08-01
申请号：US18632359
申请日：2024-04-11
申请人： Diehl Metering GmbH
发明人： Andreas Madinger , Florian Herrmann , Philip Wolf
摘要： A method for operating an ultrasonic fluid meter, preferably an ultrasonic water meter, in a fluid line network, at a measuring rate with one measuring interval, includes generating an ultrasonic signal at specific time points by an ultrasonic converter, the ultrasonic signal passing through a measuring section, and the fluid flow volume being ascertained by an electronic analysis unit based on propagation time and/or a propagation time difference of the ultrasonic signal. The hydraulic force exerted onto the ultrasonic converter by a flow event via the fluid or a change in the hydraulic force is detected by the ultrasonic converter and evaluated in the electronic analysis unit. As a result, the measuring rate is adaptively modified to ascertain the flow volume of fluid and/or the flow volume ascertained over a measuring interval is corrected based on the temporal position of the flow event relative to the measuring interval.
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公开(公告)号：US11624638B2
公开(公告)日：2023-04-11
申请号：US17026940
申请日：2020-09-21
申请人： DIEHL METERING GMBH
摘要： A flow measuring device detecting a fluid volume quantity since a start of a measurement includes a processing device determining a current flow rate parameter at measurement times using measurement data of a sensor, to increase a volume quantity based on a current flow rate parameter when operating in a first operating mode, and to keep the volume quantity constant when operating in a second mode. The processing device stores the current flow rate parameter for each measurement time in a data memory, resulting after several measuring times in storing previous flow rate parameters determined at these measuring times. Upon satisfying a switchover condition, depending on the current flow rate parameter, during operation in the second mode, the processing unit switches over to the first mode, and the volume quantity increases as a function of the current flow rate parameter and a predefined number of previous flow rate parameters.
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公开(公告)号：US11635317B2
公开(公告)日：2023-04-25
申请号：US17063790
申请日：2020-10-06
申请人： DIEHL METERING GMBH
摘要： An ultrasound flow measurement device has a vessel through which a fluid to be measured flows. An ultrasound measurement configuration with an ultrasound transducer is provided for measuring a propagation time of an ultrasound signal containing a plurality of periods along a measurement section that runs partly in a direction of flow. A controller determines a fluid flow on a basis of a propagation time measurement. The controller contains a memory, a first evaluator for determining a period duration of at least one of the periods of an ultrasound signal received after passing through the measurement section, a second evaluator for determining a spread value of a predetermined number of last received ultrasound signals, a comparator for comparing the spread value with a threshold value, and an actioning device for initiating a control action, assigned to the threshold value that has been exceeded, for the ultrasound flow measurement device.
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公开(公告)号：US20230408312A1
公开(公告)日：2023-12-21
申请号：US18333147
申请日：2023-06-12
申请人： Diehl Metering GmbH
摘要： A method for ascertaining fluid pressure in a fluid supply network having ultrasound transducers includes emitting an ultrasound signal from at least one ultrasound transducer and measuring at least one ultrasound time of flight of the signal in the fluid along an ultrasound measurement path. The flow velocity or a quantity proportional thereto or throughput is determined from the time of flight. The fluid pressure is determined from the time of flight aided by a mathematical compensation relating to at least one influence selected from a length or length change of the measurement path or a time of flight component or change thereof along the measurement path lying in or not lying in the fluid, or a fastening or position of the ultrasound transducer relative to the measurement path or a change thereof or a latency of signal processing or a change thereof or a throughput or change thereof.
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公开(公告)号：US20230147194A1
公开(公告)日：2023-05-11
申请号：US17973979
申请日：2022-10-26
申请人： Diehl Metering GmbH
发明人： Florian Herrmann , Philip Wolf
CPC分类号： G01F1/667 , G01L9/08 , G01L9/12 , G01M3/2807
摘要： A method for operating an ultrasonic fluid meter, preferably an ultrasonic water meter, in a fluid distribution network, includes using an ultrasonic transducer to generate an ultrasonic signal which passes through a measurement path, and determining a flow volume by using evaluation electronics on the basis of a transit time and/or a transit time difference of the ultrasonic signal. A hydraulic force change acting on the ultrasonic transducer through the fluid generates a voltage signal waveform on the ultrasonic transducer and the voltage signal waveform is tapped by the evaluation electronics. An ultrasonic fluid meter, preferably ultrasonic water meter, is also provided.
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