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：US10048231B2

公开(公告)日：2018-08-14

申请号：US14364105

申请日：2012-11-22

Applicant: Endress + Hauser GmbH + Co. KG

Inventor： Franco Ferraro ,  Philipp Walser

IPC: G01N29/22 ,  G01F25/00 ,  G01N9/00 ,  G01N11/10 ,  G01F23/00 ,  G01N29/02 ,  G01F23/296

Abstract: Apparatus (1) for determining and/or monitoring at least one process variable, comprising: a primary side (I) and a secondary side (II), which are galvanically isolated from one another, wherein the secondary side (II) has a sensor element sensitive for the process variable (2) and an electronics unit (9) of the secondary side and provides a measurement signal representing the process variable, and wherein the primary side (I) has an electronics unit (8) of the primary side for evaluating the measurement signal and for producing an output signal. The apparatus (1) is distinguished by features including that the electronics unit (9) of the secondary side has a modulation unit (14), which produces a modulated measurement signal by at least at times modulating at least one other piece of information onto the measurement signal representing the process variable, and that the electronics unit (9) of the secondary side transmits the modulated measurement signal via a galvanically isolated interface to the primary side (I).

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：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：US20160305813A1

公开(公告)日：2016-10-20

申请号：US15103004

申请日：2014-11-14

Applicant: ENDRESS+HAUSER GMBH+CO. KG

Inventor： Michael Dotsch ,  Franco Ferraro ,  Philipp Walser ,  Andreas Krumbholz ,  Robert Schmidt

IPC: G01F23/296

CPC classification number: G01F23/2966 ,  G01F23/00 ,  G01F23/2967 ,  G01F23/2968

Abstract: A system for determining and/or monitoring a process variable of a medium in a container, comprising a sensor module with an oscillatable unit, which is arranged in such a manner in the container that the oscillatable unit extends to a defined immersion depth in the medium, or that the oscillatable unit is placed at the height of the predetermined fill level, a tubular extension and/or a temperature reduction unit of a defined length, a contacting module and an electronics module, composed of an exciter/receiving unit, which excites the oscillatable unit to execute oscillations and receives the oscillations of the oscillatable unit. Two electrical coupling paths are associated with the electronics module, and a control/evaluation unit, which based on at least one oscillation variable of the oscillations or based on a change of an oscillation variable of the oscillations, provides information concerning the process variable or the reaching of the predetermined fill level. The sensor module and the electronics module are either electrically connected directly with one another, wherein one of the two electrical coupling paths is activated, or wherein the sensor module and the electronics module are indirectly electrically connected with one another via the contacting module, and wherein both coupling paths are activated.

Abstract translation: 一种用于确定和/或监测容器中的介质的过程变量的系统，包括具有可振荡单元的传感器模块，其以这样的方式布置在容器中，使得可振荡单元延伸到介质中限定的浸入深度 或者可振动单元被放置在预定填充水平的高度，具有限定长度的管状延伸部和/或温度降低单元，接触模块和电子模块，其由激励器/接收单元组成，其激励 振荡单元执行振荡并接收振荡单元的振荡。 两个电耦合路径与电子模块相关联，并且基于振荡的至少一个振荡变量或基于振荡的振荡变量的变化的控制/评估单元提供关于过程变量或 达到预定的填充水平。 传感器模块和电子模块彼此直接电连接，其中两个电耦合路径中的一个被激活，或者其中传感器模块和电子模块经由接触模块彼此间接地电连接，并且其中 两个耦合路径都被激活。

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：US10302479B2

公开(公告)日：2019-05-28

申请号：US15103004

申请日：2014-11-14

Applicant: Endress + Hauser GmbH + Co. KG

Inventor： Michael Dotsch ,  Franco Ferraro ,  Philipp Walser ,  Andreas Krumbholz ,  Robert Schmidt

IPC: G01F23/00 ,  G01F23/296

Abstract: A system for determining and/or monitoring a process variable of a medium in a container, comprising a sensor module with an oscillatable unit, which is arranged in such a manner in the container that the oscillatable unit extends to a defined immersion depth in the medium, or that the oscillatable unit is placed at the height of the predetermined fill level, a tubular extension and/or a temperature reduction unit of a defined length, a contacting module and an electronics module, composed of an exciter/receiving unit, which excites the oscillatable unit to execute oscillations and receives the oscillations of the oscillatable unit. Two electrical coupling paths are associated with the electronics module, and a control/evaluation unit, which based on at least one oscillation variable of the oscillations or based on a change of an oscillation variable of the oscillations, provides information concerning the process variable or the reaching of the predetermined fill level. The sensor module and the electronics module are either electrically connected directly with one another, wherein one of the two electrical coupling paths is activated, or wherein the sensor module and the electronics module are indirectly electrically connected with one another via the contacting module, and wherein both coupling paths are activated.

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：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：US20140373632A1

公开(公告)日：2014-12-25

申请号：US14364105

申请日：2012-11-22

Applicant: Endress + Hauser GmbH + Co. KG

Inventor： Franco Ferraro ,  Philipp Walser

IPC: G01N29/22 ,  G01N29/02 ,  G01F23/296

CPC classification number: G01N29/22 ,  G01F23/0076 ,  G01F23/296 ,  G01F23/2967 ,  G01F25/0076 ,  G01N9/002 ,  G01N11/10 ,  G01N29/02 ,  G01N2291/02818 ,  G01N2291/02836

Abstract: Apparatus (1) for determining and/or monitoring at least one process variable, comprising: a primary side (I) and a secondary side (II), which are galvanically isolated from one another, wherein the secondary side (II) has a sensor element sensitive for the process variable (2) and an electronics unit (9) of the secondary side and provides a measurement signal representing the process variable, and wherein the primary side (I) has an electronics unit (8) of the primary side for evaluating the measurement signal and for producing an output signal. The apparatus (1) is distinguished by features including that the electronics unit (9) of the secondary side has a modulation unit (14), which produces a modulated measurement signal by at least at times modulating at least one other piece of information onto the measurement signal representing the process variable, and that the electronics unit (9) of the secondary side transmits the modulated measurement signal via a galvanically isolated interface to the primary side (I).

Abstract translation: 用于确定和/或监测至少一个过程变量的装置（1），包括：初级侧（I）和次级侧（II），其彼此电隔离，其中次级侧（II）具有传感器 对于过程变量（2）和次级侧的电子单元（9）敏感的元件，并提供表示过程变量的测量信号，并且其中初级侧（I）具有初级侧的电子单元（8），用于 评估测量信号并产生输出信号。 装置（1）的特征在于特征包括次级侧的电子单元（9）具有调制单元（14），该调制单元（14）至少有时将至少一个其它信息调制到 测量信号表示过程变量，并且次级侧的电子单元（9）经由电隔离​​接口将调制测量信号发送到初级侧（I）。