公开(公告)号：EP3325924B1

公开(公告)日：2020-09-16

申请号：EP16731148.9

申请日：2016-06-22

Applicant: Endress+Hauser Flowtec AG

Inventor： VOIGT, Frank ,  KOUDAL, Ole ,  KOWALSKI, Jörg

IPC: G01F1/58 ,  G01F15/00 ,  B22F3/105 ,  B22F5/00 ,  B22F7/08 ,  C22C1/04

公开(公告)号：EP2893786A1

公开(公告)日：2015-07-15

申请号：EP13756858.0

申请日：2013-08-28

Applicant: Endress+Hauser Flowtec AG

Inventor： FINK, Nikolai ,  MOSER, Thiérry ,  ENGSTLER, Gernot ,  KOUDAL, Ole

IPC: H05K7/14

CPC classification number: H05K5/069 ,  H05K5/0247 ,  H05K7/1462 ,  H05K7/1465

Abstract: The invention relates to an electronic device comprising a housing for receiving electronic components, preferably a process transmitter, wherein the housing has two chambers (2, 3) in which electronic components (4, 5, 6, 7, 8) and user interfaces (14,15) and/or connecting elements (10, 11, 12, 13) for cables are arranged, the electronic components (4, 5, 6, 7) being arranged in a first chamber (2). In order to provide a process transmitter which is easily maintained, electronic components (4, 5, 6, 7, 8) are arranged exclusively in the first chamber (2) while the user interfaces (14, 15) of the electronic components (4, 5, 6, 7, 8) and/or connecting elements (10, 11, 12, 13) for cables are positioned exclusively in the second chamber (2).

Abstract translation: 具有用于容纳电子元件，优选地形成一个过程变送器电子部件的壳体的电子装置。 外壳具有两个腔室中有电子元件和用户接口和/或用于电缆连接元件布置。 所述电子部件被布置在第一腔室中。 在过程变送器，其全部是维护简单的情况下，电子部件在第一腔室布置独占，而电子元件和/或用于电缆连接元件的用户接口在所述第二腔室定位独占。

公开(公告)号：EP2798315A1

公开(公告)日：2014-11-05

申请号：EP12798233.8

申请日：2012-11-22

Applicant: Endress+Hauser Flowtec AG

Inventor： BRUDERMANN, Matthias ,  SIMON, Antoine ,  FINK, Nikolai ,  KOLLMER, Daniel ,  KOUDAL, Ole

IPC: G01D21/00 ,  G05B19/042

CPC classification number: H02M3/156 ,  G01D21/00 ,  G05B19/0423 ,  G05B2219/21119 ,  G05B2219/25428

Abstract: The invention relates to a circuit arrangement (1) for reducing power dissipation in an active current output (5) of a field device for determining and/or influencing a process variable, said process variable being represented via an adjustable current value (4-20 mA), comprising an external voltage supply, a voltage regulator (4) and a control circuit (7, 8, 9, 10) assigned to the voltage regulator (4), said control circuit (7, 8, 9, 10) being designed in such a way that the voltage regulator (4) regulates the voltage of an external load (6) connected in parallel to the current output (5) on the basis of the currently set current value (4-20 mA) in such a way that essentially only the voltage required in each case is available to the external load (6).

公开(公告)号：EP2019962A1

公开(公告)日：2009-02-04

申请号：EP07728910.6

申请日：2007-05-08

Applicant: Endress+Hauser Flowtec AG

Inventor： KOUDAL, Ole ,  JEZERNIK, Saso ,  RAINER, Höcker

IPC: G01F1/32

CPC classification number: G01F1/3209 ,  G01F1/3254

Abstract: The invention describes a method for processing measurement signals (US) from a vortex velocity flow sensor for measuring a flow of a medium through a measuring tube (1), said flow sensor having an accumulator body (3) which is arranged in the measuring tube (1) and a sensor (5) for detecting pressure fluctuations which occur in the region of the accumulator body (3) and for converting these pressure fluctuations into an electrical measurement signal (US), with a small demand for computing power and storage space, in which at least part of the measurement signal (US) is sampled and digitized, an autocorrelation (AK(T)) of the digitized measurement signal (US) is calculated, and the flow is derived using at least one property of the autocorrelation (AK(T)).

公开(公告)号：EP1955022A1

公开(公告)日：2008-08-13

申请号：EP06841277.4

申请日：2006-11-30

Applicant: Endress+Hauser Flowtec AG

Inventor： POPP, Oliver ,  KOUDAL, Ole ,  GIMSON, Chris ,  KHAN, Mohammed ,  BAILEY, Jonathan

IPC: G01F1/696 ,  G01F25/00

CPC classification number: G01F1/696 ,  G01F25/0007

Abstract: The invention relates to a device for determining and/or monitoring the mass flow rate of a fluid medium through a conduit (2) or through a measuring tube. Said device has at least two temperature sensors (11, 12) and a control/evolution unit (10), both temperature sensors (11, 12) being located in a region of the housing (5) facing the medium (3) and being in thermal contact with the medium (3) flowing through the conduit (2) or through the measuring tube. A first temperature sensor (11) and a second temperature sensor (12) are configured as to be heatable. The first temperature sensor (11) and the second temperature sensor (12) can be alternately actuated to be a passive, non-heated temperature sensor providing data on the actual temperature of the medium (3) during a first measuring interval, and as an active, heated temperature sensor providing data on the mass flow rate of the medium (3) through the conduit (2) or through the measuring tube (2) during a second measuring interval. The control/evaluation unit (10) outputs a message and/or carries out a correction of the recorded mass flow rate if the measured values of the two temperature sensors (11, 12) acquired during the first measuring interval and during the second measuring interval differ from each other.

公开(公告)号：EP1423663A1

公开(公告)日：2004-06-02

申请号：EP02774521.5

申请日：2002-08-17

Applicant: Endress + Hauser Flowtec AG

Inventor： KOUDAL, Ole ,  NIERLICH, Thomas ,  HÖCKER, Rainer

IPC: G01F1/32

CPC classification number: G01F1/3218 ,  G01F1/3209 ,  G01F1/3263 ,  G01F1/3272 ,  G01F1/86

Abstract: The invention relates to a turbulent flow meter (1) for measuring the mass flow rate, the volumetric flow rate, or the flow rate of a fluid, which flows in a measuring tube (2) that has a tube wall (21). Said meter has a temperature sensor (34), which is positioned in such a way that the turbulent flow meter can also be used with fluids that are corrosive to the temperature sensor. A resistance body (4), which creates turbulence and thus pressure fluctuations, is located in the measuring tube. A turbulence sensor (3), which responds to said body, is inserted in a bore (22) of the tube wall (21) of the measuring tube, downstream of the resistance body. The turbulence sensor (3) comprises a membrane (33) that covers the bore (22), a sensor vane (31) that projects into the fluid being fixed to said membrane. The temperature sensor (34) is fixed in a blind bore (314) of the sensor vane on the base of said bore. A sensor element (35) is fixed on the opposite side of the membrane from the sensor vane. Alternatively, the temperature sensor can be located in a longitudinal bore (24) of the resistance body.