公开(公告)号：US20200271489A1

公开(公告)日：2020-08-27

申请号：US16063785

申请日：2016-11-16

Applicant: Endress + Hauser Flowtec AG

Inventor： Rainer Hocker

IPC: G01F1/32 ,  G01L9/00

Abstract: A transducer apparatus comprises a deformation body as well as, positioned on the deformation body and connected therewith by material bonding, a radio sensor having a surface facing away from the deformation body. The radio sensor is adapted to receive free-space electromagnetic waves and to convert them into acoustic surface waves propagating along the surface facing away from the deformation body, or to convert acoustic surface waves propagating along the surface into free-space electromagnetic waves. Additionally, the deformation body is adapted as a function of a mechanical force acting thereon, and/or as a function of a temperature change, to be at least partially deformed, in such a manner that at least the surface of the radio sensor facing away from the deformation body experiences a shape change influencing a propagation of acoustic surface waves propagating along the surface. A measuring system formed by means of such a transducer apparatus comprises additionally a measuring electronics electrically coupled with the transducer apparatus and adapted to generate at least one electrical driver signal feeding and/or activating the transducer apparatus and to couple such into the transducer apparatus, and to receive and to evaluate a measurement signal delivered from the transducer apparatus.

公开(公告)号：US20160041016A1

公开(公告)日：2016-02-11

申请号：US14652847

申请日：2013-11-25

Applicant: ENDRESS+HAUSER FLOWTEC AG

Inventor： Christoph Gossweiler ,  Rainer Hocker ,  Marc Hollmach ,  Christian Kahr ,  Silvio Krauss ,  Dirk Sutterlin ,  Daniel Wymann

IPC: G01F1/32

CPC classification number: G01F1/3209 ,  G01F1/3254 ,  G01F1/74

Abstract: A vortex flow measuring device as well as a method for determining by means of a vortex, flow measuring a device, which has a bluff body protruding into the flowing medium and a vortex sensor, the mass flow ratio (x) of an at least at times two- or multiphase medium flowing in a measuring tube and having a gaseous first phase flowing with a first mass flow rate {dot over (m)}G and a liquid second phase flowing with a second mass flow rate {dot over (m)}L. The gaseous phase has a first density (ρG), which differs from a second density (ρL) of the liquid phase, comprising: producing Kármán vortices in the flowing medium at least in the region of the vortex sensor by means of the bluff body, the vortices are shed from the bluff body with a vortex shedding frequency (fv) dependent on an instantaneous flow velocity of the flowing medium; registering by means of the vortex sensor periodic pressure fluctuations caused by the Kármán vortex in the flowing medium for producing a sensor signal corresponding to the pressure fluctuations; selecting from the sensor signal a wanted signal component, which has a frequency band, especially a narrow frequency band, containing the vortex shedding frequency, especially with a relative bandwidth less than 50% of the instantaneous vortex shedding frequency, wherein preferably the instantaneous vortex shedding frequency represents the center frequency of the frequency bandwidth; and applying the wanted signal component (M) for determining a mass flow ratio (x) of the flowing medium, wherein the mass flow ratio (x) is defined as a ratio of the first mass flow {dot over (m)}G to a total mass flow, with which the medium flows, especially according to a formula: x = m . G m . L + m . G  .

Abstract translation: 涡流测量装置以及通过涡流，测量具有突出到流动介质中的非流线体和涡流传感器的装置的流动来确定的方法，至少在一个或多个流体的质量流量比（x） 在测量管中流动两次或多相介质，并且具有以第一质量流率（点（m）} G流动的气态第一相和以第二质量流率（点）超过（m）流动的液体第二相） } L。 气相具有与液相的第二密度（r r）不同的第一密度（＆rgr; G），其包括：至少在涡流传感器的区域中在流动介质中产生Kármán涡流，借助于 虚张声势的身体，涡流从脱流体脱落，具有取决于流动介质的瞬时流速的涡流脱落频率（fv）; 通过涡流传感器记录由流动介质中的卡尔曼涡流引起的周期性压力波动，用于产生对应于压力波动的传感器信号; 从传感器信号中选择具有包含涡流脱落频率的频带，特别是窄频带的有用信号分量，特别是相对带宽小于瞬时涡流脱落频率的50％，其中优选地是瞬时涡流脱落 频率表示频率带宽的中心频率; 以及施加用于确定流动介质的质量流量比（x）的有用信号分量（M），其中质量流量比（x）被定义为第一质量流量（点（m）} G与 介质流动的总质量流量，特别是根据下式：x = m。 嗯。 L + m。 G。

公开(公告)号：US10591361B2

公开(公告)日：2020-03-17

申请号：US15501003

申请日：2015-07-16

Applicant: Endress + Hauser Flowtec AG

Inventor： Rainer Hocker ,  Oliver Popp

IPC: G01K3/14 ,  G01K13/02 ,  G01K1/02 ,  G01N25/08

Abstract: An apparatus for early warning against condensation induced hydraulic shock in a pipe, conveying a fluid present at least in a first part in the vapor phase and, in the case of condensate formation, in a second part in the form of a condensate, comprising at least two temperature sensors, which are arranged in the pipe and, thus, are fluid contacting, and at least one electronics unit, wherein the first temperature sensor is so arranged that it measures the temperature of the vapor, wherein the second temperature sensor is so arranged that it measures the temperature of the condensate, wherein the at least one electronics unit is so embodied that it ascertains the temperature difference between the temperature of the vapor and the temperature of the condensate, and, upon reaching a predetermined limit value for the temperature difference, generates a report.

公开(公告)号：US20170219438A1

公开(公告)日：2017-08-03

申请号：US15501003

申请日：2015-07-16

Applicant: Endress + Hauser Flowtec AG

Inventor： Rainer Hocker ,  Oliver Popp

IPC: G01K3/14 ,  G01N25/08 ,  G01K1/02

Abstract: An apparatus for early warning against condensation induced hydraulic shock in a pipe, conveying a fluid present at least in a first part in the vapor phase and, in the case of condensate formation, in a second part in the form of a condensate, comprising at least two temperature sensors, which are arranged in the pipe and, thus, are fluid contacting, and at least one electronics unit, wherein the first temperature sensor is so arranged that it measures the temperature of the vapor, wherein the second temperature sensor is so arranged that it measures the temperature of the condensate, wherein the at least one electronics unit is so embodied that it ascertains the temperature difference between the temperature of the vapor and the temperature of the condensate, and, upon reaching a predetermined limit value for the temperature difference, generates a report.

公开(公告)号：US11326913B2

公开(公告)日：2022-05-10

申请号：US16063785

申请日：2016-11-16

Applicant: Endress + Hauser Flowtec AG

Inventor： Rainer Hocker

IPC: G01F1/32 ,  G01L9/00

Abstract: A transducer apparatus comprises a deformation body as well as, positioned on the deformation body and connected therewith by material bonding, a radio sensor having a surface facing away from the deformation body. The radio sensor is adapted to receive free-space electromagnetic waves and to convert them into acoustic surface waves propagating along the surface facing away from the deformation body, or to convert acoustic surface waves propagating along the surface into free-space electromagnetic waves. Additionally, the deformation body is adapted as a function of a mechanical force acting thereon, and/or as a function of a temperature change, to be at least partially deformed, in such a manner that at least the surface of the radio sensor facing away from the deformation body experiences a shape change influencing a propagation of acoustic surface waves propagating along the surface. A measuring system formed by means of such a transducer apparatus comprises additionally a measuring electronics electrically coupled with the transducer apparatus and adapted to generate at least one electrical driver signal feeding and/or activating the transducer apparatus and to couple such into the transducer apparatus, and to receive and to evaluate a measurement signal delivered from the transducer apparatus.

公开(公告)号：US20170307429A1

公开(公告)日：2017-10-26

申请号：US15513205

申请日：2015-09-02

Applicant: Endress + Hauser Flowtec AG

Inventor： Rainer Hocker ,  Oliver Popp

IPC: G01F1/74 ,  G01F23/296 ,  G01F23/26

CPC classification number: G01F1/74 ,  G01F1/002 ,  G01F1/34 ,  G01F1/68 ,  G01F15/00 ,  G01F15/08 ,  G01F23/26 ,  G01F23/296

Abstract: A measuring arrangement for determining flow velocity of at least one liquid phase and/or a gas phase of a vapor or a fluid composed of a liquid and a gaseous phase or a supercritical fluid, comprising a measuring tube, on or in which at least one sensor element of at least a first flow measuring device is arranged for measuring the liquid phase or the gas phase, wherein the measuring tube has at least an inflow region and an outflow region, wherein between these two regions a central region is arranged, whose measuring tube cross section has a greater area than the area of the measuring tube cross section of the outflow region or of the inflow region, and method for ascertaining flow of phases of a vapor or of a fluid composed of a liquid and a gaseous phase, or a supercritical fluid.

公开(公告)号：US20160305800A1

公开(公告)日：2016-10-20

申请号：US15102977

申请日：2014-11-25

Applicant: ENDRESS + HAUSER FLOWTEC AG

Inventor： Rainer Hocker ,  Michael Carr

IPC: G01F1/32

CPC classification number: G01F1/32 ,  G05B19/042

Abstract: A vortex flow measuring device of process automation for ascertaining a process variable, a property of a medium and/or a composition of a medium, comprising at least one sensor unit and one display unit. The sensor unit and the display unit are arranged spatially separated from one another, wherein the display unit and the sensor unit are provided with one or more communication means, which are designed for establishing a wireless data transfer route between the display unit and the sensor unit. At least the communication means of the sensor unit is operated by means of an energy harvester.

Abstract translation: 一种用于确定过程变量，介质的特性和/或介质组成的过程自动化的涡流测量装置，包括至少一个传感器单元和一个显示单元。 传感器单元和显示单元在空间上彼此分开布置，其中显示单元和传感器单元设置有一个或多个通信装置，其被设计用于在显示单元和传感器单元之间建立无线数据传输路线 。 至少传感器单元的通信装置通过能量收集器进行操作。