公开(公告)号：EP1221026B1

公开(公告)日：2011-02-16

申请号：EP00967873.1

申请日：2000-10-15

申请人： Endress + Hauser GmbH + Co. KG

发明人： CRAMER, Stefan ,  HERTEL, Markus ,  KRIEGER, Bernd

IPC分类号： G01F23/284

CPC分类号： G01F23/284

摘要： The invention relates to methods and a circuit for increasing the interference resistance of a time frame reflectometer, in particular with respect to high frequency irradiation. A transmitted pulse (XS) is generated at a pulse repeater frequency (fprf) and coupled to a wave guide (4). A return signal (Xprobe) is returned to the wavwguide (4) by a reflector (14) which is connected to said waveguide (4) and is scanned for time-expanded representation as a reflection profile with scan pulses (XA) which are repeated at a scan frequency (fA) and measurement values are continuously calculated from said reflection profiles, expressing the distance from the reflector (14) to the process connection. The scanning frequency (fA) and the pulse repeater frequency (fprf) are altered and either the expanded time represenation of the reflection profile remains unchanged or when a time change occurs in the reflection profile and said change in time expansion is and taken into account in evaluating the profile, whereby an interference factor is determined from at least one measurement of said reflection profile. In order to decide on the usability of the measurement values, an algorithm is used to calculate on the basis of the measured values said interference to the extent that sufficient measuring accuracy is attained. A circuit arrangement comprising a trigger generator (1) is used to implement the method.

公开(公告)号：EP2024719B1

公开(公告)日：2010-12-22

申请号：EP07729895.8

申请日：2007-06-05

申请人： Endress+Hauser GmbH+Co. KG

发明人： VAN BEKKUM, Frank

IPC分类号： G01K1/02

CPC分类号： G01K1/026

摘要： The invention describes a cost-effective temperature probe which can be used in a flexible manner and has a sleeve (19, 25), a plurality of temperature sensors (T1, ..., Tx) which are arranged above one another in the sleeve (19, 25), are respectively connected, in a parallel manner with respect to one another, to earth (GND) and to a communication line (K) that is routed in the sleeve (19, 25) and are supplied with energy via said line, and a superordinate unit (23) which is connected to the communication line (K), in which each temperature sensor (T1, ..., TN) is used to measure a local temperature in the area surrounding the respective temperature sensor (T1, ..., TN) and to provide the superordinate unit (23) with said temperature in the form of a digital temperature signal using the communication line (K).

公开(公告)号：EP2062021B1

公开(公告)日：2010-10-06

申请号：EP07787556.5

申请日：2007-07-16

申请人： Endress+Hauser GmbH+Co. KG

发明人： DANNHAUER, Wolfgang

IPC分类号： G01L27/00

CPC分类号： G01M3/32 ,  G01L19/0046 ,  G01L27/007

摘要： Disclosed are methods and an apparatus for diagnosing losses of liquid in pressure measuring sensors filled with pressure-transmitting liquids. In said methods and device, the pressure measuring sensor comprises a pressure sensor (3) that is disposed in a pressure measuring chamber (1), a pressure transmitter (5) that is connected to the pressure measuring chamber (1) and is sealed towards the exterior by means of a separating membrane (7) to which a pressure that is to be measured is applied in the measuring mode, and a closed interior (15) that encompasses the interiors of the pressure transmitter (5) and the pressure measuring chamber (1) and is filled with a pressure-transmitting liquid (17). Said pressure-transmitting liquid (17) transmits a pressure affecting the separating membrane (7) to the pressure sensor (3) in the measuring mode. The pressure measuring sensor further comprises a device for identifying losses (L) of liquid. Said device is provided with a test element (25) which is arranged inside the closed interior (15) and the external volume of which can be reduced in order to diagnose losses (L) of liquid. Said device is also provided with an evaluation unit (29) which detects a pressure (p) measured by the pressure sensor (3) in accordance with a reduction in volume (ΔV) of the test element (25) during the diagnosis and recognizes whether liquid (17) has leaked on the basis of the pressure (p) that is measured in accordance with the reduction in volume (ΔV).

公开(公告)号：EP1889022B1

公开(公告)日：2010-09-08

申请号：EP06755120.0

申请日：2006-05-10

申请人： Endress+Hauser GmbH+Co. KG

发明人： DANNHAUER, Wolfgang ,  NÜRNBERGER, Ralf ,  THAM, Anh, Tuan

IPC分类号： G01L7/08

CPC分类号： G01L19/0046

公开(公告)号：EP1774616B1

公开(公告)日：2010-09-08

申请号：EP05777847.4

申请日：2005-07-07

申请人： Endress + Hauser GmbH + Co. KG

发明人： CHEN, Qi ,  MICHALSKI, Bernhard

IPC分类号： H01P5/08

CPC分类号： G01S7/032 ,  G01F23/284 ,  G01S13/88 ,  H01P5/184

公开(公告)号：EP2221136A1

公开(公告)日：2010-08-25

申请号：EP09100135.4

申请日：2009-02-20

申请人： Endress+Hauser GmbH+Co. KG

发明人： Birgel, Dietmar ,  Glatz, Franz

IPC分类号： B23K1/08 ,  B23K3/08 ,  G05D21/00 ,  G01N25/48

CPC分类号： B23K1/085 ,  B23K3/08 ,  G01N25/04

摘要： Es ist eine Lötanlage mit einem Lotbad (1), das im Lötbetrieb ein flüssiges Lot (3) enthält, das Verunreinigungen enthalten kann, die sich im Lötbetrieb in dem zunächst reinen Lot (L) angereichert haben und ein Verfahren zur Erkennung von Verunreinigungen in einem Lot (3) beschrieben, mit der bzw. mit dem Verunreinigungen im Lot (3) des Lötbads (1) auf einfache Weise zeitnah vor Ort erkannt werden können, indem die Temperatur des Lots (3) während eines Abkühl- oder eines Aufheizvorganges in einem Temperaturbereich gemessen wird, indem ein Phasenübergang des Lots (3) stattfindet, bei dem mindestens ein mengenmäßig größter Teil des Lots (3) erstarrt oder schmilzt, und der zeitlichen Verlauf der gemessenen Temperatur (T(t)) und/oder eine daraus abgeleitete Kenngröße (K) mit dem zeitlichen Verlauf einer mit dem reinen Lot (L) aufgenommenen Referenzkurve (T R (t)) und/oder der entsprechenden Referenzkenngröße (K R ) des reinen Lotes (L) verglichen wird, eine gegebenenfalls bestehende Abweichung (Δ, Δ') bestimmt wird, und das Lot (3) als verunreinigt erkannt wird, wenn eine Abweichung (Δ, Δ') besteht.

摘要翻译： 焊料厂包括在焊料操作中含有流体焊料（3）的焊料槽（1）和用于检测流体焊料的杂质的装置，其中杂质集中在纯焊料中的焊接操作中。 该装置包括用于在冷却或加热过程中测量焊料的温度的温度传感器（17），其中发生焊料的相变，其中焊料的定量最大部分硬化或熔化， 评估单元（35）。 焊料厂包括在焊料操作中含有流体焊料（3）的焊料槽（1）和用于检测流体焊料的杂质的装置，其中杂质集中在纯焊料中的焊接操作中。 该装置包括用于在冷却或加热过程中测量焊料的温度的温度传感器（17），其中发生焊料的相变，其中焊料的定量最大部分硬化或熔化， 评估单元（35），其表示在相同条件下，用纯焊料记录的参考曲线的时间进度，温度和/或从温度转移的参数的时间进度，纯粹的温度的时间进度 在发生纯焊料的相变的温度范围内的冷却或加热过程中的焊料和/或纯焊料的相应参考参数确定偏差并且当存在偏差时将焊料识别为杂质。 用于检测杂质的装置包括用于从焊料槽接收给定量的流体焊料的装置和用于接收焊料的容器。 温度传感器以这样的方式布置，以便它测量容器或焊料槽中的焊料的温度。 该参数是测量温度的时间进度具有平台型部分的温度。 参考参数是纯焊料的熔解温度，转向偏差是参数和参考参数之间的差值。 独立权利要求包括：（1）检测焊料中所含杂质的方法; 和（2）用于操作焊料厂的方法。 。

公开(公告)号：EP2210151A1

公开(公告)日：2010-07-28

申请号：EP08849669.0

申请日：2008-11-12

申请人： Endress+Hauser GmbH+Co. KG

发明人： GRITTKE, Udo ,  FRÜHAUF, Dietmar ,  HUMPERT, Axel ,  GIRARDEY, Romuald

IPC分类号： G05B9/02 ,  G05B19/042

CPC分类号： G05B19/0428 ,  G05B9/02 ,  G05B2219/24184 ,  G05B2219/24191 ,  G05B2219/24192 ,  G05B2219/24195

摘要： The invention relates to a field device (1) for determining or monitoring a process variable in process automation, the device comprising a sensor (2), which operates according to a defined measuring principle, and a control/analysis unit (14), which processes and analyzes the measured data provided by the sensor (2) as a function of a safety standard, which is required in the particular safety-critical application, along at least two equivalent measuring paths (MP1, MP2), said control/analysis unit (14) being at least partially implemented as a logic component (4), which can be reconfigured and which has multiple functional modules (5, 6, 7, 8), which can be partially dynamically reconfigured, and said control/analysis unit (14) configuring the function modules (5, 6) in the measuring paths (MP1, MP2, MP3) as a function of the respectively defined safety-critical application such that the field device (1) is designed in accordance with the required safety standard.

公开(公告)号：EP2205955A2

公开(公告)日：2010-07-14

申请号：EP08846746.9

申请日：2008-11-07

申请人： Endress+Hauser GmbH+Co. KG

发明人： GETMAN, Igor ,  STOLZE, Dieter ,  THAM, Anh Tuan

IPC分类号： G01L9/00

CPC分类号： G01L19/147

摘要： The invention relates to a pressure measuring device comprising a base (13, 13'), an intermediate piece (15, 15') that is arranged on the base (13, 13') and connected thereto, comprising a semiconductor, and a semiconductor pressure sensor (17) that is arranged on the intermediate piece (15, 15') and connected thereto, comprising a carrier (19) and a measuring membrane (21). Said pressure measuring device can protect the sensitive measuring membrane (21) against mechanical strains in a reliable manner. The inside of the intermediate piece (15;15') comprises an annular-shaped peripheral recess (33 ) that surrounds a first cylindrical section (35) and a second cylindrical section (37) of the intermediate piece (15, 15') that is adjacent to first base-side thereof. The second cylindrical section (37) has a larger outer diameter than the first cylindrical section (35), and the recess is open towards the side of the intermediate piece (15, 15') that is oriented towards the base (13, 13'). The second cylindrical section (37) has a front surface that is oriented towards the base (13, 13'), that rests on an exposed front surface of the base (13, 13'), that forms a connection surface by means of which the intermediate piece (15, 15') can be mechanically connected in a rigid manner to the base (13, 13').

摘要翻译： 一种具有基座的压力测量装置，布置在基座上的中间片半导体，并与基座连接并布置在中间件上并与中间件连接，具有支撑件和测量膜或隔膜的半导体压力传感器 。 压力测量装置提供对敏感测量膜或隔膜的可靠保护，防止机械扭曲。 提供在中间件的内部延伸的是环形空腔，其环绕第一圆柱形部分及其基座端，中间件的第二圆柱形部分。 第二圆柱形部分具有比第一圆柱形部分更大的外径。 空腔在中间件的端部朝向底座打开。 第二圆柱形部分具有面向基座并且位于基座的端面上的端面，用于形成连接区域，中间件通过该连接区域与基座机械连接。

公开(公告)号：EP1486841B1

公开(公告)日：2010-05-12

申请号：EP04012547.8

申请日：2004-05-27

申请人： Endress + Hauser GmbH + Co. KG

发明人： Dittrich, Gerhard, Dr.

IPC分类号： G05B19/418

CPC分类号： G05B19/4184 ,  G05B2219/23161 ,  G05B2219/31251 ,  G05B2219/36159 ,  G05B2219/37088 ,  Y02P90/14

公开(公告)号：EP2162714A1

公开(公告)日：2010-03-17

申请号：EP08760463.3

申请日：2008-06-04

申请人： Endress+Hauser GmbH+Co. KG

发明人： HEGNER, Frank ,  ROSSBERG, Andreas ,  DREWES, Ulfert ,  SCHMIDT, Elke ,  STOLLE, Sabine ,  KRETSCHMAR, Christel ,  HENTSCHE, Melanie

IPC分类号： G01L9/00

CPC分类号： G01L9/0075 ,  G01L13/025 ,  Y10T29/49117

摘要： Disclosed is a pressure sensor comprising a base (1) and an elastic measuring membrane (2) which is joined to a surface of the base (1) to form a measuring chamber (3) that is tightly sealed on the edge. The base (1) and/or the measuring membrane (2) contain ceramics, glass, or a monocrystalline material. The measuring membrane is provided with at least one first electrode (6) that faces the surface of the base (2), while the surface of the base (1) is equipped with at least one second electrode (5) which faces the measuring membrane (2), the capacity between the first electrode and the second electrode being a measure of the pressure that is to be measured. Furthermore, at least one of the first and second electrodes have a conductive layer containing metal and glass, the metal encompassing at least two precious metal elements.