公开(公告)号：US20130118254A1

公开(公告)日：2013-05-16

申请号：US13811812

申请日：2011-06-20

申请人： Martin Urban ,  Helmut Pfeiffer ,  Volker Dreyer

发明人： Martin Urban ,  Helmut Pfeiffer ,  Volker Dreyer

IPC分类号： G01F23/26 ,  G01F23/24

CPC分类号： G01F23/266 ,  G01F23/24 ,  G01F23/265 ,  G01F23/268 ,  G01F23/2967 ,  G01F23/2968 ,  G01F25/0061 ,  G01N11/16 ,  G01N2009/006

摘要： An apparatus for determining and/or monitoring at least one fill level of a medium in a container comprising: a capacitive or conductive probe unit having at least one electrode; and a control/evaluation unit. The electrode is a hollow body, that an end region of the electrode protruding into the container is embodied as an oscillatable membrane. On an inner side of the membrane a driving/receiving unit is arranged, which excites the membrane to execute mechanical oscillations and receives mechanical oscillations therefrom and converts such into an electrical, received signal. The control/evaluation unit supplies the electrode at least at times with a voltage and determines the fill level of the medium capacitively or conductively, and/or that the control/evaluation unit supplies the driving/receiving unit at least at times with an exciter signal and determines from the electrical received signal the fill level of the medium.

摘要翻译： 一种用于确定和/或监测容器中的介质的至少一个填充水平的装置，包括：具有至少一个电极的电容或导电探针单元; 和控制/评估单元。 电极是中空体，突出到容器中的电极的端部区域被实施为可振动膜。 在膜的内侧布置有驱动/接收单元，其激励膜执行机械振荡并从其接收机械振荡并将其转换为电接收信号。 控制/评估单元至少有时提供电压，并且电容地或导电地确定介质的填充水平，和/或控制/评估单元至少有时提供激励器信号 并从电接收信号确定介质的填充水平。

公开(公告)号：US20130104647A1

公开(公告)日：2013-05-02

申请号：US13807396

申请日：2011-06-20

申请人： Sergej Lopatin ,  Martin Urban

发明人： Sergej Lopatin ,  Martin Urban

IPC分类号： G01F23/00

CPC分类号： G01F23/00 ,  G01D3/0365 ,  G01F23/2967 ,  G01K7/32 ,  G01N9/002 ,  G01N11/16

摘要： An apparatus for determining and/or monitoring at least one process variable of a medium in a container which comprises a mechanically oscillatable structure, which has at least one oscillation characteristic dependent on the process variable, an electromechanical transducer having at least one piezoelectric element, which excites the structure, by means of an excitation signal supplied to the transducer, to execute mechanical oscillations, and which converts the resulting oscillations of the structure into a received signal, which corresponds to a superpositioning of the excitation signal and a wanted signal representing the oscillation. A reference element in parallel with the transducer and supplied with the excitation signal, via which a reference signal independent of the oscillation and corresponding to the excitation signal is tapped, and an electronics, which, based on the received signal and the reference signal, extracts the wanted signal, and, based on the wanted signal, determines and/or monitors the process variable, wherein, for automatic measuring of temperature of the transducer, the electronics includes a temperature measuring device, which supplies the transducer and the reference element, in temperature measurement operation, with an auxiliary signal, whose frequency lies outside a frequency range predetermined by a resonant frequency of the oscillatory structure, and, based on the wanted signal extracted in temperature measurement operation, determines a temperature of the transducer.

摘要翻译： 一种用于确定和/或监测容器中的介质的至少一个过程变量的装置，其包括具有取决于过程变量的至少一个振荡特性的机械可振荡结构，具有至少一个压电元件的机电换能器， 通过提供给换能器的激励信号来激发结构，以执行机械振荡，并且将结构的振荡转换成接收信号，其对应于激励信号的叠加和表示振荡的有用信号 。 与传感器并联并提供有激励信号的参考元件，通过该参考元件独立于振荡并对应于激励信号的参考信号被抽头，以及基于接收信号和参考信号提取的电子装置 所需信号，并且基于所需信号，确定和/或监视过程变量，其中，为了自动测量换能器的温度，电子器件包括温度测量装置，其将换能器和参考元件供应到 温度测量操作，其辅助信号的频率位于由振荡结构的谐振频率预定的频率范围之外，并且基于在温度测量操作中提取的有用信号来确定换能器的温度。

公开(公告)号：US20120174671A1

公开(公告)日：2012-07-12

申请号：US13496525

申请日：2010-08-17

申请人： Martin Urban

发明人： Martin Urban

IPC分类号： G01N29/00

CPC分类号： G01F23/296 ,  G01F23/2965 ,  G01F23/2966 ,  G01F25/0061

摘要： A method for determining and/or monitoring at least one physical, process variable of a medium with an oscillatable unit, wherein a transmitting/receiving unit excites the oscillatable unit by means of transmission signals to execute oscillations. The oscillations of the oscillatable unit are received in the form of received signals, and the process variable is determined and/or monitored based on the frequency and/or the amplitude of the received signal and/or phase shift between the transmission and the received signals. The time behavior of the amplitude of the received signal is examined and evaluated as a function of a time variation of the exciting of the oscillatable unit, and is determined therefrom whether accretion has formed on the oscillatable unit.

摘要翻译： 一种用于利用可振荡单元确定和/或监视介质的至少一个物理过程变量的方法，其中，发送/接收单元通过发送信号来激励可振荡单元以执行振荡。 以接收信号的形式接收可振荡单元的振荡，并且基于接收信号的频率和/或幅度和/或传输与接收信号之间的相移来确定和/或监视过程变量 。 根据可振动单元的激励的时间变化来检查和评估接收信号的振幅的时间行为，并且由此确定是否在可振荡单元上形成增益。

公开(公告)号：US20100236323A1

公开(公告)日：2010-09-23

申请号：US12733685

申请日：2008-08-11

申请人： Sascha D' Angelico ,  Martin Urban

发明人： Sascha D' Angelico ,  Martin Urban

IPC分类号： G01N11/16

CPC分类号： G01N11/16 ,  G01F23/2965 ,  G01F23/2967 ,  G01N9/002

摘要： A method for determining and/or monitoring the viscosity of a medium, wherein a mechanically oscillatable unit is excited to execute oscillations based on an exciter signal, and wherein oscillations are received from the mechanically oscillatable unit and transduced into a received signal. The eigenfrequency and/or resonance frequency of the mechanically oscillatable unit and/or phase relationship between the exciter signal and the received signal are/is ascertained and/or monitored, and, from changes in the eigenfrequency and/or resonance frequency and/or phase relationship, a change in viscosity is deduced and/or, based on dependencies of the oscillations on the viscosity of the medium, from the eigenfrequency and/or resonance frequency and/or phase relationship, viscosity is ascertained. In a second variant of the method, decay behavior of the mechanically oscillatable unit is evaluated. An apparatus for determining and/or monitoring viscosity is also presented.

摘要翻译： 一种用于确定和/或监测介质粘度的方法，其中机械振荡单元被激励以基于激励器信号执行振荡，并且其中振荡从机械振荡单元接收并被转换成接收信号。 确定和/或监测激励器信号和接收信号之间的机械可振荡单元的本征频率和/或谐振频率，并且根据本征频率和/或谐振频率和/或相位的变化 关系，根据本征频率和/或共振频率和/或相位关系推断粘度变化和/或基于振荡对介质粘度的依赖性，确定粘度。 在该方法的第二变型中，评估机械振荡单元的衰减行为。 还提出了用于确定和/或监测粘度的装置。