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    • 1. 发明授权
    • Apparatus for ascertaining and/or monitoring a process variable of a meduim
    • 用于确定和/或监视药物的过程变量的装置
    • US08220313B2
    • 2012-07-17
    • US12309474
    • 2007-06-14
    • Sergej LopatinAlexander MüllerSascha D'AngelicoMartin UrbanStanislaw Herwik
    • Sergej LopatinAlexander MüllerSascha D'AngelicoMartin UrbanStanislaw Herwik
    • G01N9/00
    • G01N9/002G01F23/296G01F23/2966G01F23/2967
    • An apparatus for ascertaining and/or monitoring a process variable, especially density of a medium. The apparatus includes: an exciting/receiving unit, which excites a mechanically oscillatable unit to execute mechanical oscillations and which receives the mechanical oscillations; an electronics unit, which applies to the exciting/receiving unit an electrical, exciter signal, and which obtains from the exciting/receiving unit an electrical, received signal. The electronics unit produces the exciter signal in such a manner, that, between the received signal and the exciter signal, a phase difference equal to a desired value of phase difference results, at which effects of changes of viscosity on mechanical oscillations of the mechanically oscillatable unit are negligible, and that the desired value of phase difference is predetermined as a function of the ratio of impedance of the exciting/receiving unit to the input impedance of the electronics unit.
    • 用于确定和/或监测过程变量,特别是介质密度的装置。 该装置包括:激励/接收单元,其激励机械振荡单元执行机械振荡并且接收机械振荡; 电子单元,其向激励/接收单元施加电,激励器信号,并从激励/接收单元获得电接收信号。 电子单元以这样的方式产生激励器信号,即在接收信号和激励器信号之间,相位差等于相位差的期望值,其中粘度变化对机械振荡的机械振荡的影响 单位是可忽略的,并且相位差的期望值是预定的,作为激励/接收单元的阻抗与电子单元的输入阻抗的比率的函数。
    • 2. 发明申请
    • APPARATUS FOR DETERMINING AND/OR MONITORING A PROCESS VARIABLE OF A MEDIUM
    • 用于确定和/或监测中等变量的过程的装置
    • US20130104647A1
    • 2013-05-02
    • US13807396
    • 2011-06-20
    • Sergej LopatinMartin Urban
    • Sergej LopatinMartin Urban
    • G01F23/00
    • G01F23/00G01D3/0365G01F23/2967G01K7/32G01N9/002G01N11/16
    • 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.
    • 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。
    • 3. 发明授权
    • Apparatus for determining and/or monitoring a process variable of a medium
    • 用于确定和/或监视介质的过程变量的装置
    • US09448097B2
    • 2016-09-20
    • US13807396
    • 2011-06-20
    • Sergej LopatinMartin Urban
    • Sergej LopatinMartin Urban
    • G01F23/00G01D3/036G01F23/296G01K7/32G01N9/00G01N11/16
    • G01F23/00G01D3/0365G01F23/2967G01K7/32G01N9/002G01N11/16
    • 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.
    • 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。
    • 4. 发明申请
    • METHOD FOR DETERMINING AND/OR MONITORING AT LEAST ONE PHYSICAL, PROCESS VARIABLE OF A MEDIUM
    • 用于确定和/或监控至少一个物理学的方法,中等变量的过程
    • US20120119758A1
    • 2012-05-17
    • US13387172
    • 2010-06-22
    • Martin Urban
    • Martin Urban
    • G01R27/28
    • G01N29/036G01F23/2965G01F23/2967G01N9/002G01N11/16G01N29/022G01N2291/02818G01N2291/02836G01N2291/0427
    • A method for determining and/or monitoring at least one physical, process variable of a medium with an oscillatable unit, wherein the oscillatable unit is excited by means of a frequency search sweep within a predetermined frequency band in the working range of the oscillatable unit in the form of transmitted signals successively to oscillate with discrete exciter frequencies wherein the corresponding oscillations of the oscillatable unit are received in the form of received signals, wherein, via the frequency search sweep, the exciter frequency is ascertained, in the case of which the oscillatable unit oscillates with an oscillation frequency, which has a predetermined phase shift between the transmitted signal and the received signal. The transmitting/receiving unit excites the oscillatable unit to oscillate with the ascertained oscillation frequency. The selected points in time depend on the predetermined phase shift between transmitted signal and received signal and that the voltage values sampled at the discrete exciter frequencies of the received signal are evaluated with reference to their amplitude.
    • 一种用于确定和/或监视具有可振荡单元的介质的至少一个物理过程变量的方法,其中所述可振荡单元通过在所述可振荡单元的工作范围内的预定频带内的频率搜索扫描而被激励 发射信号的形式连续地以离散的激励器频率振荡,其中以可接收信号的形式接收可振荡单元的相应振荡,其中经由频率搜索扫描确定激励器频率,在可振荡单元的情况下 单元以振荡频率振荡,振荡频率在发射信号和接收信号之间具有预定的相移。 发射/接收单元激励振荡单元以确定的振荡频率振荡。 所选择的时间点取决于发射信号和接收信号之间的预定相移,并且参考它们的振幅来评估在接收信号的离散激励器频率处采样的电压值。
    • 7. 发明授权
    • Apparatus for determining and/or monitoring a predetermined fill level
    • 用于确定和/或监视预定填充水平的装置
    • US09377343B2
    • 2016-06-28
    • US13811812
    • 2011-06-20
    • Martin UrbanHelmut PfeifferVolker Dreyer
    • Martin UrbanHelmut PfeifferVolker Dreyer
    • G01F23/26G01F23/24G01F23/296G01F25/00
    • G01F23/266G01F23/24G01F23/265G01F23/268G01F23/2967G01F23/2968G01F25/0061G01N11/16G01N2009/006
    • 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.
    • 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。
    • 8. 发明授权
    • Apparatus and method for operating an apparatus for determining and/or monitoring at least one physical process variable
    • 用于操作用于确定和/或监视至少一个物理过程变量的装置的装置和方法
    • US08869597B2
    • 2014-10-28
    • US13462933
    • 2012-05-03
    • Tobias BrengartnerMartin UrbanMichael Siegel
    • Tobias BrengartnerMartin UrbanMichael Siegel
    • G01H13/00G01F23/296
    • G01F23/2961G01F23/2965G01F23/2967
    • A method for operating an apparatus which has an oscillatable unit. The oscillatable unit is excited to oscillate by means of a first frequency sweep within a predetermined frequency band with successive, discrete exciter frequencies of increasing or decreasing frequency. A first exciter frequency is ascertained, in the case of which, during the first frequency sweep, at least one predeterminable criterion is fulfilled. The oscillatable unit is excited by means of a second frequency sweep, wherein the frequency band, compared with the first frequency sweep, is run through in the opposite direction. A second exciter frequency is ascertained, in the case of which, during the second frequency sweep, the at least one predeterminable criterion is fulfilled. From the first exciter frequency and the second exciter frequency, via formation of an average, a measuring frequency for determining and/or monitoring at least one process variable is determined.
    • 一种用于操作具有可振荡单元的装置的方法。 振荡单元被激励以借助于具有递增或递减频率的连续的离散激励器频率在预定频带内的第一频率扫描振荡。 确定第一激励器频率,在第一次频率扫描的情况下,满足至少一个可预定标准。 可振荡单元通过第二频率扫描来激励,其中与第一频率扫描相比,频带沿相反方向穿过。 确定第二激励器频率,在第二频率扫描的情况下,满足至少一个可预定标准。 通过形成平均值,从第一激励器频率和第二激励器频率确定用于确定和/或监视至少一个过程变量的测量频率。
    • 10. 发明授权
    • Pressure-medium-traversed piston of a reciprocating piston pump
    • 往复式活塞泵的压力 - 中横活塞
    • US5588817A
    • 1996-12-31
    • US491981
    • 1995-07-17
    • Wilhelm ZirpsWolfgang SchullerMartin Urban
    • Wilhelm ZirpsWolfgang SchullerMartin Urban
    • B60T8/40F04B53/12F04B21/04
    • F04B53/129B60T8/4031Y10T137/7931Y10T137/7936
    • This invention is directed to a closing member of an inlet valve of a pressure-medium-traversed piston of a reciprocating piston pump. The closing member is disposed as fully as possible in the piston to minimize the dead air space. The piston has a longitudinal bore in which a stem engages the closing member, which stem emanates from a valve disk. The stem is embraced by an at least approximately frustoconical helical compression spring acting as a closing spring. This is held, with an end segment of smaller diameter, non-twistably against the stem. A shoulder of the longitudinal bore is located on the valve seat side and exhibits at least one cross-sectional alteration for the screw-like action upon the end segment of larger diameter of the closing spring. The closing spring is thus able to be sunk into the longitudinal bore and biased in place. The reciprocating piston pump can be used, for example, for slip-regulated braking systems of motor vehicles.
    • PCT No.PCT / DE94 / 00651 Sec。 371日期:1995年7月17日 102(e)日期1995年7月17日PCT提交1994年6月10日PCT公布。 公开号WO95 / 00759 日期1995年1月5日本发明涉及往复式活塞泵的压力 - 介质 - 活塞活塞的入口阀的关闭构件。 关闭构件尽可能地设置在活塞中以最小化死空气空间。 活塞具有纵向孔,杆中的杆与闭合构件接合,该杆从阀盘发出。 该杆由至少近似截头圆锥形的螺旋压缩弹簧所包围,该弹簧用作关闭弹簧。 这是保持的,具有较小直径的端部段,不可扭转地抵靠杆。 纵向孔的肩部位于阀座侧上,并且在闭合弹簧的较大直径的端部段上呈现用于螺旋状作用的至少一个横截面变化。 因此,闭合弹簧能够沉入纵向孔并被偏压到位。 往复式活塞泵可以用于例如机动车辆的滑动制动系统。