公开(公告)号：WO2017167389A1

公开(公告)日：2017-10-05

申请号：PCT/EP2016/057168

申请日：2016-03-31

Applicant: DANFOSS A/S

Inventor： JESPERSEN, Lars ,  ANDERSEN, David Brisson

IPC: G01F1/66

Abstract: The current invention relates to a method for monitoring an ultrasonic flow meter (1) comprising the steps of generating a reference fingerprint comprising one or more initial system parameters of the ultrasonic flow meter (1) and comparing the generated reference fingerprint to the same system parameters being currently measured when the ultrasonic flow meter (1) is in use. According to the invention, a reference digital sample of an initial ultrasonic signal is generated in order to generate data for the reference fingerprint, the initial ultrasonic signal being sent and received by the ultrasonic flow meter (1) and the sent (Tx) and/or the received (Rx) initial ultrasonic signal being digitally sampled by the ultrasonic flow meter (1) so as to obtain a Tx and/or Rx reference digital sample, respectively. This allows easy monitoring of the ultrasonic flow meter (1).

Abstract translation: 本发明涉及一种用于监测超声波流量计（1）的方法，该方法包括以下步骤：生成包括超声波流量计（1）的一个或多个初始系统参数的参考指纹;以及比较 当超声波流量计（1）正在使用时，产生与当前测量的相同系统参数相关的参考指纹。 根据本发明，生成初始超声波信号的参考数字样本以便生成参考指纹的数据，超声波流量计（1）发送和接收初始超声波信号，并且发送（Tx）和/ 或接收的（Rx）初始超声波信号被超声波流量计（1）数字地采样，以分别获得Tx和/或Rx参考数字采样。 这样可以方便地监测超声波流量计（1）。

公开(公告)号：WO2017167378A1

公开(公告)日：2017-10-05

申请号：PCT/EP2016/057099

申请日：2016-03-31

Applicant: DANFOSS A/S

Inventor： JESPERSEN, Lars ,  STÆR, Torben ,  STEFFENSEN, Henrik, Bork

IPC: G01F1/66

Abstract: The invention relates to a method and a system (1 ) for sampling an ultrasonic signal, comprising two ultrasonic transducers (2, 3) arranged in a fluid path connected to a control unit (4). Task of the invention is to provide a method and a system for sampling an ultrasonic signal that allows to obtain a higher resolution digital output signal without the need for an analog-to-digital converter with a high sampling frequency. The task is solved by a method comprising the following steps: a) Sending an input electric signal from the control unit (4) to a first ultrasonic transducer (2), transforming the input electric signal to an ultrasonic signal and sending it to a second ultrasonic transducer (3) through the flow path, b) transforming the received ultrasonic signal at the second ultrasonic transducer (3) to an output electric signal that is sent to the control unit (4), c) sampling the output electric signal received at the control unit to a first series of digital samples at a sampling frequency, d) repeating steps a) to c) at least once with the same electric input electric signal, wherein in step c) the time of start of the sampling measured from the time of start of the respective input electric signal and/or the sampling frequency is different from the previous sampling, e) combining the obtained series of samples to obtain a combined digital output signal.

Abstract translation: 本发明涉及一种用于对超声信号进行采样的方法和系统（1），其包括布置在连接到控制单元（4）的流体路径中的两个超声换能器（2,3）。 本发明的任务是提供一种用于采样超声信号的方法和系统，其允许获得更高分辨率的数字输出信号，而不需要具有高采样频率的模数转换器。 该任务通过包括以下步骤的方法来解决：a）从控制单元（4）向第一超声换能器（2）发送输入电信号，将输入电信号转换为超声信号并将其发送到第二 b）将在第二超声换能器（3）处接收到的超声信号转换为发送到控制单元（4）的输出电信号，c）对在第一超声换能器（3）处接收的输出电信号进行采样， 所述控制单元以采样频率接收第一系列数字样本，d）用相同的电输入电信号重复步骤a）至c）至少一次，其中在步骤c）中，从所述第一系列数字样本测量的采样开始时间 相应输入电信号的开始时间和/或采样频率不同于先前的采样，e）组合所获得的一系列采样以获得组合的数字输出信号。

公开(公告)号：WO2016141982A1

公开(公告)日：2016-09-15

申请号：PCT/EP2015/055038

申请日：2015-03-11

Applicant: DANFOSS A/S

Inventor： JESPERSEN, Lars

IPC: G01F1/66 ,  G01S7/523

CPC classification number: G01F1/667

Abstract: The present invention relates to a transceiver circuit for a flow meter comprising a common signal path for signals to be transmitted and/or received via one or more associated transducers, the transceiver circuit comprising a generator circuit, a signal processing circuit and an active circuit, wherein the active circuit comprises a first and a second transistor being operatively connected via their respective emitter terminals thereby forming a combined input/output terminal, said combined input/output terminal being operatively connectable to one or more associated transducers, the active circuit being adapted to act as a buffer for signals to be transmitted, and adapted to act as an amplifier for received signals.

Abstract translation: 本发明涉及一种用于流量计的收发器电路，其包括用于经由一个或多个相关联的换能器发射和/或接收的信号的公共信号路径，收发器电路包括发生器电路，信号处理电路和有源电路， 其中所述有源电路包括通过其相应的发射极端子可操作地连接的第一和第二晶体管，从而形成组合的输入/输出端子，所述组合的输入/输出端子可操作地连接到一个或多个相关联的换能器，所述有源电路适于 充当用于发送信号的缓冲器，并适于作为接收信号的放大器。

公开(公告)号：EP3436788B1

公开(公告)日：2020-02-26

申请号：EP16714373.4

申请日：2016-03-31

Applicant: Danfoss A/S

Inventor： JESPERSEN, Lars ,  STÆR, Torben ,  STEFFENSEN, Henrik Bork

IPC: G01F1/66

公开(公告)号：EP3436785B1

公开(公告)日：2020-02-19

申请号：EP16714845.1

申请日：2016-03-31

Applicant: Danfoss A/S

Inventor： JESPERSEN, Lars ,  CARSTENSEN, Morten

IPC: G01D4/00 ,  H04L25/02

公开(公告)号：EP3436787A1

公开(公告)日：2019-02-06

申请号：EP16711960.1

申请日：2016-03-31

Applicant: Danfoss A/S

Inventor： JESPERSEN, Lars ,  ANDERSEN, David Brisson

IPC: G01F1/66