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1. 发明申请

WO2021180281A1 SYSTEM AND METHOD FOR ACOUSTIC LEAK DETECTION IN A UTILITY DISTRIBUTION SYSTEM 审中-公开
公开(公告)号：WO2021180281A1
公开(公告)日：2021-09-16
申请号：PCT/DK2021/050069
申请日：2021-03-08
申请人： KAMSTRUP A/S
发明人： DUPONT, Sune Hoveroust , Jens Lykke Sørensen , Søren Tønnes Nielsen , Peter Schmidt Laursen
IPC分类号： G01M3/00
摘要： Method for identifying a leak indication in a utility distribution system including a pipe net- work for supplying a utility to a multitude of service connections and including a plurality of acoustic sensors mounted at the service connections. The method comprises the steps of: determining the presence of a normal fluid pressure in the pipe network; establishing a base- line noise indicator at a time of normal fluid pressure by using the acoustic sensors; deter- mining the presence of a difference fluid pressure in the pipe network; establishing a leak noise indicator at a time of the difference fluid pressure by using the acoustic sensors; and correlating one or more baseline noise indicators and leak noise indicators to determine ser- vice connections subject to leak indications.

2. 发明授权

US10921288B2 Fluid consumption meter with noise sensor 有权
公开(公告)号：US10921288B2
公开(公告)日：2021-02-16
申请号：US15741567
申请日：2016-07-04
申请人： Kamstrup A/S
发明人： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørensen , René Gajda Kristensen , Martin Christian Høj Petersen
IPC分类号： G01N29/032 , G01D4/00 , G01M3/24 , G01F1/66 , G01M3/28
摘要： A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc. Such consumer noise level measurement at the consumer site allows collection of noise level data to assist in locating fluid leakages in a fluid supply pipe system.

3. 发明授权

US10379084B2 Turbidity sensor based on ultrasound measurements 有权
公开(公告)号：US10379084B2
公开(公告)日：2019-08-13
申请号：US15741560
申请日：2016-07-01
申请人： Kamstrup A/S
发明人： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørensen , Sune Hoveroust Dupont
IPC分类号： G01N29/032 , G01D4/00 , G01M3/24 , G01F1/66 , G01M3/28
摘要： A turbidity measurement device for measuring turbidity of a fluid flowing in a flow tube. A first transducer transmits ultrasonic signals through the fluid in the turbidity measurement section so as to provide a first ultrasonic standing wave between the first and second section ends. A receiver transducer receives the ultrasonic scattered response from particles in the fluid flowing through the turbidity measurement section. A control circuit operates the transducers and generates a signal indicative of the turbidity of the fluid in response to signals received from the receiver transducer. Preferably, the device may comprise a second transducer for generating a second ultrasonic standing wave with the same frequency, and further the two transducers may be used to generate a measure of flow rate by means of known ultrasonic techniques. This flow rate may be used in the calculation of a measure of turbidity. Both turbidity facilities and flow rate facilities may be integrated in a consumption meter, such as a heat meter or a water meter.

4. 发明授权

US09970799B2 System of ultrasonic consumption meters with pressure sensors 有权
公开(公告)号：US09970799B2
公开(公告)日：2018-05-15
申请号：US15320671
申请日：2015-06-19
申请人： Kamstrup A/S
发明人： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørennsen
IPC分类号： G01B7/16 , G01F1/66 , G01L1/16 , G01L5/04 , G01L1/22
CPC分类号： G01F1/667 , G01B7/18 , G01L1/16 , G01L1/22 , G01L5/042
摘要： A system of a plurality of ultrasonic consumption meters 100 each arranged in a utility network 1 for measuring consumption data of a utility in terms of a supplied fluid, the utility network 1 further comprising a data collector 2 for collecting the consumption data is provided, wherein: Each of the ultrasonic consumption meters 100 are arranged to measure a flow rate of the supplied fluid and a pressure of the supplied fluid, the consumption meters 100 comprising: A flow tube 110 with a through-going opening 112 for passage of a fluid between an inlet and an outlet, the flow tube having a wall with an outer surface 114; two ultrasonic transducers 120, 122 arranged at the outer surface 114 of the flow tube 110, so that ultrasonic signals are transmitted through the wall; a control circuit 30 arranged for operating the two ultrasonic transducers 120, 122 and to generate a signal indicative of the flow rate of the fluid; and a communication module 140 connected to the control circuit 130 and arranged for communicating the signal indicative of the flow rate of the fluid to the data collector 2; wherein the control circuit 130 is arranged for operating a first strain gauge 150 arranged at the outer surface 114 of the flow tube 110 to generate a signal indicative of the pressure of the fluid, and 1 wherein the communication module 140 is arranged for communicating the signal indicative of the pressure of the fluid to the data collector 2. The consumption meters 100 of the system are capable of obtaining and communicating data relating to flow and pressure in a utility network to an operator of the network for proper operation of the network.

5. 发明申请

US20170153137A1 SYSTEM OF ULTRASONIC CONSUMPTION METERS WITH PRESSURE SENSORS 有权
公开(公告)号：US20170153137A1
公开(公告)日：2017-06-01
申请号：US15320671
申请日：2015-06-19
申请人： Kamstrup A/S
发明人： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørennsen
IPC分类号： G01F1/66 , G01B7/16 , G01L1/22
CPC分类号： G01F1/667 , G01B7/18 , G01L1/16 , G01L1/22 , G01L5/042
摘要： A system of a plurality of ultrasonic consumption meters 100 each arranged in a utility network 1 for measuring consumption data of a utility in terms of a supplied fluid, the utility network 1 further comprising a data collector 2 for collecting the consumption data is provided, wherein: Each of the ultrasonic consumption meters 100 are arranged to measure a flow rate of the supplied fluid and a pressure of the supplied fluid, the consumption meters 100 comprising: A flow tube 110 with a through-going opening 112 for passage of a fluid between an inlet and an outlet, the flow tube having a wall with an outer surface 114; two ultrasonic transducers 120, 122 arranged at the outer surface 114 of the flow tube 110, so that ultrasonic signals are transmitted through the wall; a control circuit 30 arranged for operating the two ultrasonic transducers 120, 122 and to generate a signal indicative of the flow rate of the fluid; and a communication module 140 connected to the control circuit 130 and arranged for communicating the signal indicative of the flow rate of the fluid to the data collector 2; wherein the control circuit 130 is arranged for operating a first strain gauge 150 arranged at the outer surface 114 of the flow tube 110 to generate a signal indicative of the pressure of the fluid, and 1 wherein the communication module 140 is arranged for communicating the signal indicative of the pressure of the fluid to the data collector 2. The consumption meters 100 of the system are capable of obtaining and communicating data relating to flow and pressure in a utility network to an operator of the network for proper operation of the network.

6. 发明授权

US11499853B2 Modular ultrasonic consumption meter 有权
公开(公告)号：US11499853B2
公开(公告)日：2022-11-15
申请号：US16952175
申请日：2020-11-19
申请人： Kamstrup A/S
发明人： Søren Tønnes Nielsen , Peter Schmidt Laursen , Kaspar Raahede Aarøe
IPC分类号： G01F1/66 , G01F1/667 , G01F15/063
摘要： A consumption meter arranged to measure a flow rate of a fluid, comprising: a tube with for passage of the fluid between an inlet and an outlet, multiple individual flow meters arranged at the tube to measure a sub-flow rate of the fluid, a first control circuit and communication interface arranged for receiving the measured sub-flow rate from each of the multiple flow meters, and being arranged to generate a signal indicative of the flow rate of the fluid according to the received sub-flow rates, each of the multiple individual flow meters comprising: a flow meter housing arranged at the tube; first and second ultrasonic transducers arranged in the flow meter housing for transmitting and receiving ultrasonic signals propagating through the fluid; a second control circuit arranged for operating the first and second ultrasonic transducers, and being arranged to generate the signal indicative of the sub-flow rate of the fluid accordingly; and a communication interface arranged for transmitting the signal indicative of the sub-flow rate to the first control circuit.

7. 发明申请

US20190033261A1 FLUID CONSUMPTION METER WITH NOISE SENSOR 审中-公开
公开(公告)号：US20190033261A1
公开(公告)日：2019-01-31
申请号：US15741567
申请日：2016-07-04
申请人： Kamstrup A/S
发明人： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørensen , René Gajda Kristensen , Martin Christian Høj Petersen
IPC分类号： G01N29/032 , G01D4/00 , G01F1/66 , G01M3/24 , G01M3/28
摘要： A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc. Such consumer noise level measurement at the consumer site allows collection of noise level data to assist in locating fluid leakages in a fluid supply pipe system.

8. 再颁专利

USRE47048E1 Flow meter with ultrasound transducer directly connected to and fixed to measurement circuit board 有权
公开(公告)号：USRE47048E1
公开(公告)日：2018-09-18
申请号：US14957402
申请日：2015-12-02
申请人： Kamstrup A/S
发明人： Anders Skallebæk , Peter Schmidt Laursen , Søren Tønnes Nielsen
IPC分类号： G01F1/20 , G01F1/66
摘要： An ultrasound flow meter unit arranged to measure a fluid flow rate with one or more ultrasound transducers (606), and a circuit board (602) with an electronic circuit arranged to operate the ultrasound transducer(s) (106, 306). The ultrasound transducer (606), e.g. in the form of a piezo-electric element, is mechanically fixed to the circuit board (602) by a first electrically conducting fixing means which additionally serve(s) to provide an electrical connection between an electrical terminal of the transducer (606) and the electronic circuit. Hereby a functional flow measurement unit (600) is provided which can be tested prior to assembly with a flow meter housing etc. Preferably, a set of ultrasound transducers (106, 306) are soldered directly onto electrically conducting paths (631) on a surface of the circuit board (602) being in electrical connection with the electronic circuit, e.g. in a single SMT mounting process together with mounting of all other electronic components on the circuit board (602). Through-going openings (630, 640) of the circuit board (602) in the vicinity of these conducting paths (631) serve to provide thermal elasticity. A metal clip soldered to the circuit board (602) may serve to electrically connect a second electrical terminal of the transducer (606) to the electronic circuit.

9. 发明授权

US11852609B2 Fluid consumption meter with noise sensor 有权
公开(公告)号：US11852609B2
公开(公告)日：2023-12-26
申请号：US17029153
申请日：2020-09-23
申请人： Kamstrup A/S
发明人： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørensen , René Gajda Kristensen , Martin Christian Høj Petersen
IPC分类号： G01N29/032 , G01D4/00 , G01M3/24 , G01F1/66 , G01M3/28
CPC分类号： G01N29/032 , G01D4/00 , G01D4/002 , G01D4/004 , G01F1/666 , G01M3/243 , G01M3/2815 , G01N2291/015 , G01N2291/02408 , G01N2291/02416 , G01N2291/044 , Y02B90/20 , Y04S20/30
摘要： A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc. Such consumer noise level measurement at the consumer site allows collection of noise level data to assist in locating fluid leakages in a fluid supply pipe system.

10. 发明授权

US11614352B2 Consumption meter with ultrasonic flow measurement 有权
公开(公告)号：US11614352B2
公开(公告)日：2023-03-28
申请号：US16952152
申请日：2020-11-19
申请人： Kamstrup A/S
发明人： Søren Tønnes Nielsen , Peter Nordlund Borring , Peter Schmidt Laursen
IPC分类号： G01F1/66 , G01F1/667
摘要： A consumption meter arranged to measure a flow rate of a fluid comprising: a tube with two transducer holes in a wall of the tube; a meter housing arranged at the tube, comprising two transducer housings and a main housing; first and second ultrasonic transducers arranged in the transducer housings for transmitting and receiving ultrasonic signals propagating through the fluid; a control circuit arranged in the meter housing for operating the first and second ultrasonic transducers to generate a signal according to the flow rate of the fluid. The transducer housing comprises: an internal transducer housing element arranged at an inner surface of the tube and an external transducer housing element arranged at an outer surface of the tube to extend through the transducer hole in the wall of the tube such that the transducer housing is fixated to the tube.

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