公开(公告)号：US11243109B2

公开(公告)日：2022-02-08

申请号：US16820460

申请日：2020-03-16

Applicant: Apator Miitors ApS

Inventor： Jens Drachmann

IPC: G01F25/00 ,  G01F1/66

Abstract: An ultrasonic flow meter is disclosed, including a switching unit for switching electrical transmission signals between a signal generator and at least two ultrasonic transducers and for switching electrical reception signal between the transducers and a receiver circuit, wherein the switching unit is coupled to an output terminal of an operational amplifier of the signal generator and to an inverting input terminal of an operational amplifier of the receiver circuit. Furthermore, a method for characterizing an ultrasonic transducer is disclosed, including the step of determining directly from one or more supply current signals for an active component of a signal generator one or more quantities useful for characterizing the transducer. Furthermore, a method for determining the time delay of an ultrasonic signal in a flow path of an ultrasonic flow meter is disclosed, including the step of comparing physically transmitted, delayed and received signals with simulated non-delayed signals.

公开(公告)号：US10775212B2

公开(公告)日：2020-09-15

申请号：US16568996

申请日：2019-09-12

Applicant: Apator Miitors ApS

Inventor： Jens Drachmann

IPC: G01F1/66

Abstract: A method of reducing a phase error of a flow rate measurement in an ultrasonic flow meter is disclosed. The flow meter has a flow path for a fluid to be measured, a first ultrasonic transducer having a characteristic quantity and a second ultrasonic transducer having a second characteristic quantity. The method comprises repeatedly measuring the first and second characteristic quantities of the ultrasonic transducers and determining a relation between the characteristic quantities, estimating a phase error value indicative of the phase error from the determined relation between the characteristic quantities, and using the estimated phase error value for correcting a difference between transmission times measured by the ultrasonic flow meter. An output is provided indicative of the flow rate of the fluid in the flow path with reduced phase error from the corrected difference between transmission times.

公开(公告)号：US20200182670A1

公开(公告)日：2020-06-11

申请号：US16315320

申请日：2016-07-08

Applicant: Apator Miitors ApS

Inventor： Jens Drachmann ,  Kresten Helstrup

IPC: G01F1/66 ,  H03M1/12 ,  H03M1/36

Abstract: Transit-time based ultrasonic flow meter with analog-to-digital conversion for measuring ultrasonic signals, wherein accuracy of measurements is improved by making several measurements with different input offset, reference voltage, frame offset or sample rate in an analog-to-digital conversion stage.

公开(公告)号：US10359305B2

公开(公告)日：2019-07-23

申请号：US15383720

申请日：2016-12-19

Applicant: APATOR MIITORS ApS

Inventor： Jens Drachmann

IPC: G01F1/66 ,  H04R31/00

Abstract: An ultrasonic flow meter includes a meter housing, a first ultrasound transducer, a second ultrasound transducer, an electronic control arrangement for operating the ultrasonic flow meter, and a connection arrangement being arranged between the electronic control arrangement and the ultrasound transducers. The connection arrangement includes an electrically insulating support arrangement, and a set of elastic connectors for electrically connecting the electronic control arrangement with the first and second ultrasound transducers. The insulating support arrangement mechanically fixates the set of elastic connectors and maintains electrical separation between the set of elastic connectors.

公开(公告)号：US20180058888A1

公开(公告)日：2018-03-01

申请号：US15689065

申请日：2017-08-29

Applicant: APATOR MIITORS ApS

Inventor： Jens Drachmann

IPC: G01F1/60 ,  G01F1/26 ,  G01F15/06 ,  G01F15/075

CPC classification number: G01F1/60 ,  G01D3/10 ,  G01D7/00 ,  G01F1/26 ,  G01F15/063 ,  G01F15/068 ,  G01F15/075 ,  G01F15/0755

Abstract: A utility flow meter and a method for measuring a flow of a liquid through a flow conduit having a liquid sensing arrangement, a display device, and a display mode controller for controlling the display mode. The display mode controller is configured to control the display mode based on a first display mode when the liquid presence criterion is fulfilled and a second display mode when the liquid presence criterion is not fulfilled. The first display mode consists of at least one flow representation, and the second display mode consists of at least one further representation.

公开(公告)号：US09557201B2

公开(公告)日：2017-01-31

申请号：US14423231

申请日：2013-08-22

Applicant: APATOR MIITORS APS

Inventor： Jens Drachmann

IPC: G01F1/66 ,  H04R31/00

CPC classification number: G01F1/667 ,  G01F1/662 ,  H04R31/006 ,  Y10T29/49005 ,  Y10T29/49169 ,  Y10T29/49217

Abstract: An ultrasonic flow meter includes a meter housing, a first ultrasound transducer, a second ultrasound transducer, an electronic control arrangement for operating the ultrasonic flow meter, and a connection arrangement being arranged between the electronic control arrangement and the ultrasound transducers. The connection arrangement includes an electrically insulating support arrangement, and a set of elastic connectors for electrically connecting the electronic control arrangement with the first and second ultrasound transducers. The insulating support arrangement mechanically fixates the set of elastic connectors and maintains electrical separation between the set of elastic connectors.

Abstract translation: 超声波流量计包括仪表壳体，第一超声波换能器，第二超声波换能器，用于操作超声波流量计的电子控制装置，以及布置在电子控制装置和超声换能器之间的连接装置。 连接装置包括电绝缘支撑装置和用于将电子控制装置与第一和第二超声换能器电连接的一组弹性连接器。 绝缘支撑装置机械地固定该组弹性连接器并维持该组弹性连接器之间的电气分离。