公开(公告)号：US10061344B2

公开(公告)日：2018-08-28

申请号：US14901163

申请日：2014-06-02

Applicant: Endress + Hauser GmbH + Co. KG

Inventor： Stefan Rummele-Werner ,  Dietmar Fruhauf ,  Armin Wernet ,  Kaj Uppenkamp ,  Gerd Bechtel

IPC: G06F1/08 ,  G01F23/26 ,  G06F1/03

CPC classification number: G06F1/08 ,  G01F23/266 ,  G06F1/0321 ,  G06F1/0328

Abstract: A signal generator for producing periodic signals for a measuring apparatus of automation technology. The signals have sequential, discrete signal frequencies, which lie within a predetermined frequency range. A control- and/or computing unit, a clock signal producer are provided, wherein the clock signal producer provides a constant sampling frequency, which is greater than the maximum discrete signal frequency in the predetermined frequency range. A memory unit is provided, in which for each of the discrete signal frequencies the amplitude values of the corresponding periodic signals are stored or storable as a function of the sampling frequency. The control- and/or computing unit reads out the stored or storable amplitude values of the discrete frequencies successively with the sampling frequency of the clock from the memory unit and produces the periodic signals, or forwards for producing. A static filter unit, is also provided with a limit frequency, which lies above the maximum signal frequency and which removes frequency fractions caused by the sampling.

公开(公告)号：US20150323957A1

公开(公告)日：2015-11-12

申请号：US14652256

申请日：2013-12-06

Applicant: ENDRESS+HAUSER GMBH+CO. KG

Inventor： Kaj Uppenkamp ,  Walter Rombach ,  Franco Ferraro ,  Armin Wernet

IPC: G06F1/08

CPC classification number: G06F1/08 ,  G01D18/008 ,  G01D21/00 ,  H03L1/026 ,  H03L7/099

Abstract: A method for stabilizing the clock frequency of a microcontroller associated with a field device of automation technology. The field device as a function of application is exposed to different process conditions, wherein the clock frequency of the microcontroller is ascertained at at least two different temperature values, and/or at at least two different voltage values. Based on the ascertained values, the dependence of the clock frequency of the microcontroller on temperature over a predetermined temperature- and/or frequency range and/or the dependence of the clock frequency of the microcontroller on voltage over a predetermined voltage- and/or frequency range is ascertained. The ascertained values are stored, and the influence of temperature and/or voltage on the clock frequency of the microcontroller is at least approximately compensated taking into considerating the ascertained temperature dependence and/or the ascertained voltage dependence.

Abstract translation: 一种用于稳定与自动化技术的现场设备相关联的微控制器的时钟频率的方法。 作为应用的函数的现场设备暴露于不同的工艺条件，其中微控制器的时钟频率在至少两个不同的温度值和/或至少两个不同的电压值下确定。 基于确定的值，微控制器的时钟频率对于预定温度和/或频率范围内的温度的依赖性和/或微控制器的时钟频率对预定电压和/或频率上的电压的依赖性 确定范围。 存储确定的值，并且考虑到确定的温度依赖性和/或确定的电压依赖性，至少大约补偿温度和/或电压对微控制器的时钟频率的影响。

公开(公告)号：US10228717B2

公开(公告)日：2019-03-12

申请号：US14652256

申请日：2013-12-06

Applicant: Endress + Hauser GmbH + Co. KG

Inventor： Kaj Uppenkamp ,  Walter Rombach ,  Franco Ferraro ,  Armin Wernet

IPC: G06F9/00 ,  G06F1/08 ,  G01D21/00 ,  H03L1/02 ,  H03L7/099 ,  G01D18/00

Abstract: A method for stabilizing the clock frequency of a microcontroller associated with a field device of automation technology. The field device as a function of application is exposed to different process conditions, wherein the clock frequency of the microcontroller is ascertained at least two different temperature values, and/or at least two different voltage values. Based on the ascertained values, the dependence of the clock frequency of the microcontroller on temperature over a predetermined temperature- and/or frequency range and/or the dependence of the clock frequency of the microcontroller on voltage over a predetermined voltage- and/or frequency range is ascertained. The ascertained values are stored, and the influence of temperature and/or voltage on the clock frequency of the microcontroller is at least approximately compensated taking into considering the ascertained temperature dependence and/or the ascertained voltage dependence.

公开(公告)号：US20170343407A1

公开(公告)日：2017-11-30

申请号：US15534833

申请日：2015-09-11

Applicant: Endress+Hauser GmbH+Co. KG

Inventor： Robert Schmidt ,  Andreas Krumbholz ,  Armin Wernet ,  Kaj Uppenkamp

IPC: G01F23/24 ,  G01N27/07 ,  G01F23/26

CPC classification number: G01F23/242 ,  G01F23/268 ,  G01N27/07

Abstract: A probe unit having a coaxial structure and including a probe electrode, a guard electrode and a contacting module arranged on a section of the probe electrode, which contacting module including an insulating sleeve, a flexible circuit board with a first conduction path for the electrical contacting of the probe electrode and a second conduction path for the electrical contacting of the guard electrode, and a module housing, wherein a first contact plate is provided that electrically contacts the first conduction path, the module housing including a second contact plate that electrically contacts the second conduction path, wherein the module housing has a pot-shaped geometry with a cylindrical wall, which wall substantially surrounds, protects and/or electromagnetically shields at least the probe electrode in the region in which the contacting module is arranged, at least a part of the insulating sleeve, and at least sections of the circuit board.

公开(公告)号：US20160018248A1

公开(公告)日：2016-01-21

申请号：US14771841

申请日：2014-02-17

Applicant: ENDRESS+HAUSER GMBH+CO. KG

Inventor： Armin Wernet ,  Gerd Bechtel ,  Kaj Uppenkamp ,  Franco Ferraro

IPC: G01F23/26

CPC classification number: G01F23/263 ,  G01F23/241 ,  G01F23/243 ,  G01F23/265 ,  G01F23/266

Abstract: A method and an apparatus for monitoring a set fill level of a medium in a container using a fill level measuring probe that is designed to operate as a conductive fill level measuring probe in a conductive operating mode and as a capacitive fill level measuring probe in a capacitive operating mode, with a control/evaluation/output unit that is designed to alternately trigger conductive operating mode and capacitive operating mode, and with a control/evaluation/output unit that determines whether the set fill level of the medium in the container has been reached on the basis of the measured values from the two operating modes, and which generates a message when the set fill level is exceeded and/or undershot.

Abstract translation: 一种用于使用被设计为在导电操作模式中作为导电填充液位测量探针操作的填充液位测量探针来监视容器中的介质的设定填充水平的方法和装置，以及作为电容式液位测量探针 电容操作模式，具有设计成交替触发导电操作模式和电容操作模式的控制/评估/输出单元，以及用于确定容器中的介质的设定填充水平是否已经被控制/评估/输出单元 基于来自两种操作模式的测量值达到，并且当超过设置的填充水平和/或低于该值时产生消息。

公开(公告)号：US10416020B2

公开(公告)日：2019-09-17

申请号：US15311243

申请日：2015-05-27

Applicant: Endress + Hauser GmbH + Co. KG

Inventor： Armin Wernet ,  Gerd Bechtel ,  Kaj Uppenkamp

IPC: G01F23/24 ,  G01F23/00 ,  G01F23/26

Abstract: Method for monitoring a predetermined fill level of a medium (3) in a container (2) with at least one measuring probe (1) and an electronics unit (7), wherein the measuring probe (1) is operated alternately in the conductive and in the capacitive operating modes, wherein the measuring probe (1) is supplied with an exciter signal, which is composed of two different, time alternatingly sequential, periodic signal components, wherein in a first time interval the first periodic signal component is generated for the conductive operating mode and in a second time interval the second periodic signal component is generated for the capacitive operating mode, wherein from the capacitive or conductive operating mode response signal obtained from the measuring probe (1) as a function of the current signal component, it is ascertained, whether the predetermined fill level has been reached, and wherein a report is generated upon the exceeding or subceeding of this fill level.

公开(公告)号：US10281312B2

公开(公告)日：2019-05-07

申请号：US14771841

申请日：2014-02-17

Applicant: Endress + Hauser GmbH + Co. KG

Inventor： Armin Wernet ,  Gerd Bechtel ,  Kaj Uppenkamp ,  Franco Ferraro

IPC: G01F23/24 ,  G01F23/26

Abstract: A method and an apparatus for monitoring a set fill level of a medium in a container using a fill level measuring probe that is designed to operate as a conductive fill level measuring probe in a conductive operating mode and as a capacitive fill level measuring probe in a capacitive operating mode, with a control/evaluation/output unit that is designed to alternately trigger conductive operating mode and capacitive operating mode, and with a control/evaluation/output unit that determines whether the set fill level of the medium in the container has been reached on the basis of the measured values from the two operating modes, and which generates a message when the set fill level is exceeded and/or undershot.

公开(公告)号：US20150312020A1

公开(公告)日：2015-10-29

申请号：US14649258

申请日：2013-11-27

Applicant: ENDRESS+HAUSER GMBH+CO. KG

Inventor： Walter Rombach ,  Franco Ferraro ,  Armin Wernet ,  Kaj Uppenkamp

IPC: H04L7/00

CPC classification number: H04L7/0008 ,  H01F2019/085

Abstract: An apparatus for synchronizing the clock frequencies of a first electronics unit arranged on the primary side, and a second electronics unit arranged on the secondary side. Associated with the first electronics unit is a clock signal producer, which produces a clock signal having a reference clock frequency, wherein a transmission unit is provided between the first electronics unit and the second electronics unit. A first control unit is provided, which operates the transmission unit with a clock frequency, which amounts to a fraction of the reference clock frequency of the first electronics unit, wherein a second control unit is provided, which couples the clock frequency out to the secondary side and, based on the out-coupled clock frequency, produces for the second electronics unit a clock frequency, which is synchronous with the reference clock frequency of the first electronics unit.

Abstract translation: 一种用于同步布置在初级侧的第一电子单元的时钟频率的装置和布置在次级侧的第二电子单元。 与第一电子单元相关联的是时钟信号生成器，其产生具有参考时钟频率的时钟信号，其中传输单元设置在第一电子单元和第二电子单元之间。 提供了第一控制单元，其以时钟频率操作传输单元，该时钟频率等于第一电子单元的参考时钟频率的一小部分，其中提供第二控制单元，其将时钟频率耦合到次级 并且基于输出耦合时钟频率，为第二电子单元产生与第一电子单元的参考时钟频率同步的时钟频率。

公开(公告)号：US10422680B2

公开(公告)日：2019-09-24

申请号：US14889255

申请日：2014-04-22

Applicant: Endress + Hauser GmbH + Co. KG

Inventor： Armin Wernet ,  Gerd Bechtel ,  Kaj Uppenkamp ,  Franco Ferraro

IPC: G01F23/26 ,  G01F23/24

Abstract: A method and an apparatus for monitoring at least one media-specific property of a medium in automation technology with a measuring probe, wherein the at least one media-specific property is ascertained in a conductive operating mode and in a capacitive operating mode of the measuring probe. The conductive operating mode and the capacitive operating mode are operated alternately, wherein based on the measured values, which are ascertained in at least one of the two operating modes, it is checked, whether the at least one media-specific property to be monitored lies within a predetermined tolerance band, and wherein a report and/or a switching signal is generated, when the at least one media-specific property to be monitored lies outside of the predetermined tolerance band.

公开(公告)号：US10352754B2

公开(公告)日：2019-07-16

申请号：US15534833

申请日：2015-11-09

Applicant: Endress+Hauser GmbH+Co. KG

Inventor： Robert Schmidt ,  Andreas Krumbholz ,  Armin Wernet ,  Kaj Uppenkamp

IPC: G01F23/24 ,  G01F23/26 ,  G01N27/07

Abstract: A probe unit having a coaxial structure and including a probe electrode, a guard electrode and a contacting module arranged on a section of the probe electrode, which contacting module including an insulating sleeve, a flexible circuit board with a first conduction path for the electrical contacting of the probe electrode and a second conduction path for the electrical contacting of the guard electrode, and a module housing, wherein a first contact plate is provided that electrically contacts the first conduction path, the module housing including a second contact plate that electrically contacts the second conduction path, wherein the module housing has a pot-shaped geometry with a cylindrical wall, which wall substantially surrounds, protects and/or electromagnetically shields at least the probe electrode in the region in which the contacting module is arranged, at least a part of the insulating sleeve, and at least sections of the circuit board.