公开(公告)号：US10379084B2

公开(公告)日：2019-08-13

申请号：US15741560

申请日：2016-07-01

Applicant: Kamstrup A/S

Inventor： Søren Tønnes Nielsen ,  Peter Schmidt Laursen ,  Jens Lykke Sørensen ,  Sune Hoveroust Dupont

IPC: G01N29/032 ,  G01D4/00 ,  G01M3/24 ,  G01F1/66 ,  G01M3/28

Abstract: 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.

公开(公告)号：US20240133726A1

公开(公告)日：2024-04-25

申请号：US18493218

申请日：2023-10-23

Applicant: Kamstrup A/S

Inventor： Lotte Holmegaard ,  Sune Hoveroust Dupont ,  Mads Raunbak ,  Morten Ørris Poulsen ,  Morten Rasmussen

IPC: G01F15/10

CPC classification number: G01F15/10

Abstract: The present invention provides a method for preventing frost damage to one or more flow meters installed in a fluid distribution network containing a fluid, wherein each flow meter is configured to measure a temperature, preferably an air temperature, and to wirelessly transmit the measured temperature, such as via a mobile or a fixed wireless reading system to a processing unit. The method comprises: 1) during a period continuously monitoring (M_TMP) the temperatures measured by the plurality of flow meters over a period of time, 2) performing a data analysis (P_DA) on the temperatures of the plurality of flow meters from the period, 3) based on the data analysis, identifying (I_FDC) one or more ones of the plurality of flow meters as frost damage candidates in a future frost period, and 4) transmitting (T_WS) a warning signal indicative of the frost damage candidates or initiating frost protection measures to protect the frost damage candidates. It has been found that it is possible to monitor temperatures in a no-frost period to identify a frost damage candidate, e.g. if a flow meter is positioned in a pit and the lid is removed thereby causing the risk of a frost damage of the flow meter.

公开(公告)号：US20240230389A9

公开(公告)日：2024-07-11

申请号：US18493218

申请日：2023-10-24

Applicant: Kamstrup A/S

Inventor： Lotte Holmegaard ,  Sune Hoveroust Dupont ,  Mads Raunbak ,  Morten Ørris Poulsen ,  Morten Rasmussen

IPC: G01F15/10

CPC classification number: G01F15/10

Abstract: The present invention provides a method for preventing frost damage to one or more flow meters installed in a fluid distribution network containing a fluid, wherein each flow meter is configured to measure a temperature, preferably an air temperature, and to wirelessly transmit the measured temperature, such as via a mobile or a fixed wireless reading system to a processing unit. The method comprises: 1) during a period continuously monitoring (M_TMP) the temperatures measured by the plurality of flow meters over a period of time, 2) performing a data analysis (P_DA) on the temperatures of the plurality of flow meters from the period, 3) based on the data analysis, identifying (I_FDC) one or more ones of the plurality of flow meters as frost damage candidates in a future frost period, and 4) transmitting (T_WS) a warning signal indicative of the frost damage candidates or initiating frost protection measures to protect the frost damage candidates. It has been found that it is possible to monitor temperatures in a no-frost period to identify a frost damage candidate, e.g. if a flow meter is positioned in a pit and the lid is removed thereby causing the risk of a frost damage of the flow meter.

公开(公告)号：US20190285587A1

公开(公告)日：2019-09-19

申请号：US16427836

申请日：2019-05-31

Applicant: Kamstrup A/S

Inventor： Søren Tønnes Nielsen ,  Peter Schmidt Laursen ,  Jens Lykke Sørensen ,  Sune Hoveroust Dupont

IPC: G01N29/032 ,  G01D4/00 ,  G01M3/24 ,  G01F1/66 ,  G01M3/28

Abstract: 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.

公开(公告)号：US20180188210A1

公开(公告)日：2018-07-05

申请号：US15741560

申请日：2016-07-01

Applicant: Kamstrup A/S

Inventor： Søren Tønnes Nielsen ,  Peter Schmidt Laursen ,  Jens Lykke Sørensen ,  Sune Hoveroust Dupont

IPC: G01N29/032

CPC classification number: G01N29/032 ,  G01D4/00 ,  G01D4/002 ,  G01D4/004 ,  G01F1/666 ,  G01M3/243 ,  G01M3/2815 ,  G01N2291/015 ,  G01N2291/02408 ,  G01N2291/02416 ,  G01N2291/044 ,  Y02B90/241 ,  Y02B90/242 ,  Y02B90/246 ,  Y04S20/32 ,  Y04S20/322 ,  Y04S20/36 ,  Y04S20/42

Abstract: 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.