公开(公告)号：US4412450A

公开(公告)日：1983-11-01

申请号：US285763

申请日：1981-07-22

申请人： Hans-Jurgen Franz ,  Volker Dreyer

发明人： Hans-Jurgen Franz ,  Volker Dreyer

IPC分类号： G01F23/26

CPC分类号： G01F23/266

摘要： An arrangement for determining the level in a container includes a capacitive probe disposed in the container, a measuring transducer arranged in the vicinity of the container, and a remote evaluation apparatus. The measuring transducer produces a signal corresponding to the capacitance between the probe and the container. This signal, which is indicative of the level in the container, is transmitted from the transducer to the evaluation apparatus via a two-wire line, which also transmits the current supply DC voltage from the evaluation apparatus to the transducer. The transducer includes a switch for periodically switching from the probe capacitance to a test capacitance. The evaluation apparatus comprises a time control circuit which periodically varies or interrupts the DC voltage on the two-wire line, and the transducer includes a control circuit which responds to the voltage changes to actuate the switch. This permits control of the test operation by the evaluation apparatus over the same two-wire line which also carries the measuring signal and the current supply voltage.

摘要翻译： 用于确定容器中的电平的装置包括设置在容器中的电容式探头，布置在容器附近的测量传感器和远程评估装置。 测量传感器产生对应于探头和容器之间的电容的信号。 指示容器中的电平的该信号经由双线线路从换能器传递到评估装置，双线线路将电流供应DC电压从评估装置传送到换能器。 换能器包括用于周期性地从探针电容切换到测试电容的开关。 评估装置包括周期性地改变或中断双线线路上的DC电压的时间控制电路，并且换能器包括响应电压变化以致动开关的控制电路。 这允许评估装置通过同样的双线线路进行测试操作的控制，该双线线路还带有测量信号和当前电源电压。

公开(公告)号：US09470667B2

公开(公告)日：2016-10-18

申请号：US14353597

申请日：2012-09-12

申请人： Andreas Krumbholz ,  Volker Dreyer

发明人： Andreas Krumbholz ,  Volker Dreyer

IPC分类号： G01N33/00 ,  G01D11/24 ,  G01F23/296 ,  G01F23/00

CPC分类号： G01N33/00 ,  G01D11/245 ,  G01F23/00 ,  G01F23/2961 ,  G01F23/2965 ,  G01F23/2967

摘要： An apparatus for determining and/or monitoring at least one process variable of a medium, comprising at least one sensor element sensitive for the process variable, a process connection for securing the apparatus to a container or pipeline and a housing connected with the process connection. The apparatus has at least one, first component of metal and at least one, second component of synthetic material, wherein the first component and the second component are embodied as hollow bodies. An annular, first connection region is formed on the first component, wherein on the second component an annular second connection region is formed, whose outer diameter corresponds at least sectionally to the inner diameter of the first connection region. The second connection region is introduced into the first connection region, and a securement structure is present, which is dimensioned and positioned in such a manner that the securement structure presses the second connection region at least sectionally against the first connection region.

摘要翻译： 一种用于确定和/或监测介质的至少一个过程变量的装置，包括至少一个对过程变量敏感的传感器元件，用于将设备固定到容器或管道的过程连接以及与过程连接相连接的壳体。 该装置具有金属的至少一个第一部件和合成材料的至少一个第二部件，其中第一部件和第二部件被实施为空心体。 在第一部件上形成环形的第一连接区域，其中在第二部件上形成环形的第二连接区域，其外径至少相当于第一连接区域的内径。 第二连接区域被引入到第一连接区域中，并且存在固定结构，该固定结构的尺寸和定位方式使得固定结构至少部分地将第二连接区域压靠在第一连接区域上。

公开(公告)号：US08359109B2

公开(公告)日：2013-01-22

申请号：US12226662

申请日：2007-04-25

申请人： Volker Dreyer ,  Udo Grittke ,  Kaj Uppenkamp ,  Franco Ferraro

发明人： Volker Dreyer ,  Udo Grittke ,  Kaj Uppenkamp ,  Franco Ferraro

IPC分类号： G05B11/01

CPC分类号： G01F23/2966 ,  G01D5/56 ,  G01F23/00 ,  G01F23/2965 ,  G01N35/00871

摘要： An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one sensor unit for registering the process variable, wherein the sensor unit produces measurement signals; at least one electronics unit for controlling the sensor unit, wherein the electronics unit has at least one microprocessor; and at least one memory unit, which is associated with the sensor unit, and in which control data are storable. The control data specifically relate to the sensor unit and can be read out by the electronics unit. The microprocessor of the electronics unit is embodied in such a manner, that the microprocessor executes in an inactive state only basic functionalities, and that the microprocessor in an active state controls the sensor unit. The microprocessor transfers from the inactive state into the active state transfers by loading control data from the memory unit.

摘要翻译： 一种用于确定和/或监视介质的至少一个过程变量的装置。 该装置包括：至少一个用于登记过程变量的传感器单元，其中传感器单元产生测量信号; 至少一个用于控制所述传感器单元的电子单元，其中所述电子单元具有至少一个微处理器; 以及与传感器单元相关联的至少一个存储器单元，并且其中控制数据可存储。 控制数据具体涉及传感器单元，并可由电子单元读出。 电子单元的微处理器以这样的方式实现，即微处理器在非活动状态下仅执行基本功能，并且处于活动状态的微处理器控制传感器单元。 微处理器通过从存储器单元加载控制数据从非活动状态转移到活动状态传输。

公开(公告)号：US20060114111A1

公开(公告)日：2006-06-01

申请号：US11250571

申请日：2005-10-17

申请人： Volker Dreyer ,  Christoph Rompf ,  Alexander Mueller

发明人： Volker Dreyer ,  Christoph Rompf ,  Alexander Mueller

IPC分类号： G08B21/00 ,  H04L5/16 ,  G08B1/00 ,  G08B1/08

CPC分类号： H04L27/10

摘要： An apparatus for determining and/or monitoring a physical or chemical process variable of a medium, having a sensor unit, which produces a measurement signal with a piece of process variable-dependent, basic information, and having an evaluation unit which, from the measurement signal of the sensor unit, determines a measured value for the process variable, and which produces an output signal with information concerning whether the measured value is greater or smaller than a limit value. A first and second modulation range are provided, and the evaluation unit modulates the output signal within the first or second modulation range with the basic information of the measurement signal, with the evaluation unit modulating the output signal within the first modulation range when the process variable is smaller than the limit value, and with the evaluation unit modulating the output signal within the second modulation range when the process variable is greater than the limit value.

公开(公告)号：US07043981B2

公开(公告)日：2006-05-16

申请号：US10220274

申请日：2001-03-01

申请人： Jutta Kuhny ,  Sergej Lopatin ,  Volker Dreyer

发明人： Jutta Kuhny ,  Sergej Lopatin ,  Volker Dreyer

IPC分类号： G01F23/00

CPC分类号： B06B1/0611 ,  G01F23/2967

摘要： Disclosed is a device for determining and/or monitoring a predetermined level. The multipurpose inventive device comprises the following: a mechanical oscillating structure which is placed at the same height as the predetermined level, a pot-shaped housing which is sealed on one end by a membrane (3), piezo-electric elements (15,17) which are arranged in a pile (13) and which, when in operation, are used to place the oscillating structure in an oscillating state, in addition to detecting oscillations according to a momentary level and to make said oscillations accessible for further processing and/or evaluation, being confined between a first and second die (19,21) whose respective ends are adjacent to the pile (13), wherein the pile (13) is clamped along the longitudinal axis of the housing (1) between a pressure screw (24) which is screwed into the housing (1) and the membrane (3).

摘要翻译： 公开了一种用于确定和/或监视预定水平的装置。 本发明的多功能装置包括：与预定水平放置在相同高度的机械摆动结构，一个由膜（3）在一端密封的罐形壳体，压电元件（15,17） ），其布置在桩（13）中，并且在操作中，用于将振荡结构置于振荡状态，除了根据瞬时水平检测振荡以及使所述振荡可进入进一步处理和/ 或评估，被限制在其端部与桩（13）相邻的第一和第二模具（19,21）之间，其中所述桩（13）沿着所述壳体（1）的纵向轴线夹紧在压力螺钉 （24），其被旋入壳体（1）和膜（3）中。

公开(公告)号：US5763961A

公开(公告)日：1998-06-09

申请号：US716100

申请日：1996-09-19

申请人： Volker Dreyer ,  Bernd Strutt

发明人： Volker Dreyer ,  Bernd Strutt

IPC分类号： H03K17/94 ,  C02F1/32

CPC分类号： H03K17/94 ,  Y10T307/766 ,  Y10T307/779 ,  Y10T307/826 ,  Y10T307/858 ,  Y10T307/957

摘要： The electronic switching device serves to control the connection of a load to a voltage source by a switch which is controlled in a first operating mode directly by a binary signal furnished by a signal processing circuit and in a second operating mode inverted. The switching device has three terminals, of which the first permanently remains connected to a first terminal of the voltage source and to a first terminal of the load, whilst of the other two switching device terminals the one is connected to the second terminal of the voltage source and the other to the second terminal of the load. The switching device is configured so that it can be changed over from the one operating mode into the other by interchanging the connections between these two other switching device terminals and the second terminals of the voltage source and of the load, respectively.

摘要翻译： 电子开关装置用于通过由第一操作模式直接由信号处理电路提供的二进制信号和反向的第二操作模式的开关来控制负载与电压源的连接。 开关装置具有三个端子，其中第一端子永久地保持连接到电压源的第一端子和负载的第一端子，而另外两个开关装置端子连接到电压的第二端子 源和另一端到负载的第二个终端。 开关装置被配置为使得它可以分别通过交换这两个开关装置端子和电压源和负载的第二端子之间的连接而从一个操作模式切换到另一个操作模式。

公开(公告)号：US4594584A

公开(公告)日：1986-06-10

申请号：US656367

申请日：1984-10-01

申请人： Helmut Pfeiffer ,  Volker Dreyer ,  Martin Pfandler

发明人： Helmut Pfeiffer ,  Volker Dreyer ,  Martin Pfandler

IPC分类号： G01F23/22 ,  G01F23/296 ,  G08B21/00

CPC分类号： G01F23/2967

摘要： The device for determining and/or monitoring a predetermined filling level in a container has two oscillatory rods secured with spacing adjacent one another on a diaphragm the edge of which is connected to a screw-in part. By means of the screw-in part the device is so secured in a screw-threaded aperture of the container wall at the height of the filling level to be detected that the oscillatory rods project into the container. At the side of the diaphragm remote from the oscillatory rods a bridging member is held spaced from the diaphragm by flexurally elastic rod-shaped supports. Each of the rod shaped supports is rigidly connected at one end to an oscillatory rod. Between the bridging member and the diaphragm there is held, with preloading of the diaphragm, a transducer column comprising in a stack a piezoelectric excitation transducer and a piezoelectric reception transducer. The piezoelectric transducers are connected to one another via an amplifier in a self-excitation circuit so that the mechanical oscillatory system is excited with its natural resonance frequency. An evaluation circuit responds to changes in frequency of the oscillations and initiates indicating and/or switching operations in accordance with such frequency changes.

摘要翻译： 用于确定和/或监测容器中的预定填充水平的装置具有两个振荡杆，该振动杆的边缘彼此相邻地固定在隔膜上，该隔膜的边缘连接到螺纹部分。 通过螺纹部分，装置被固定在容器壁的螺纹孔中，在待检测的高度处，以便振荡杆伸入容器中。 在远离振荡杆的隔膜的侧面，桥接构件通过弯曲弹性的杆状支撑件与隔膜保持间隔开。 每个棒状支撑件在一端刚性地连接到振荡杆。 在桥接构件和隔膜之间，通过隔膜的预加载来保持包括压电激励换能器和压电接收换能器的换能器列。 压电传感器通过自激电路中的放大器彼此连接，使得机械振荡系统以其固有共振频率被激发。 评估电路响应振荡频率的变化，并根据这种频率变化启动指示和/或切换操作。

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：US08434211B2

公开(公告)日：2013-05-07

申请号：US13120760

申请日：2009-08-12

申请人： Volker Dreyer ,  Armin Wernet

发明人： Volker Dreyer ,  Armin Wernet

IPC分类号： G01R31/28

CPC分类号： G01F23/263 ,  G01F23/266 ,  G01F25/0061 ,  Y10T29/435 ,  Y10T29/49002 ,  Y10T29/49004 ,  Y10T29/49005 ,  Y10T29/49007 ,  Y10T29/4908

摘要： A method for manufacturing a measuring apparatus for capacitive determining and/or monitoring of at least the fill level of a medium. The measuring apparatus has a probe unit and an electronics unit. During a measurement, the electronics unit supplies the probe unit with an exciter signal and receives from the probe unit a received signal, from which the electronics unit ascertains a capacitance value. The probe unit is coated with an insulation layer, the coated probe unit is connected with the electronics unit and inserted into a container containing a calibration medium, the coated probe unit is covered completely by the calibration medium and an associated received signal is gained, and, with the associated received signal, at least one adjustable component of the electronics unit is set.

摘要翻译： 一种用于制造用于电容确定和/或监测至少介质的填充水平的测量装置的方法。 测量装置具有探针单元和电子单元。 在测量期间，电子单元向探针单元提供激励器信号，并从探测单元接收接收的信号，电子单元从该单元确定电容值。 探针单元涂覆有绝缘层，涂覆的探针单元与电子单元连接并插入容纳校准介质的容器中，涂覆的探针单元被校准介质完全覆盖，并且获得相关的接收信号，以及 利用相关联的接收信号，设置电子单元的至少一个可调节部件。

公开(公告)号：US20130042698A1

公开(公告)日：2013-02-21

申请号：US13695693

申请日：2011-04-14

申请人： Andreas Mayr ,  Volker Dreyer ,  Sergej Lopatin

发明人： Andreas Mayr ,  Volker Dreyer ,  Sergej Lopatin

IPC分类号： G01F1/20

CPC分类号： G01F1/708 ,  G01F1/7044

摘要： A method and an apparatus for determining at least one flow characteristic of an essentially laminarly flowing, gaseous or liquid medium in a pipeline. Distinguishing features include: that at least one modulation element introduced into, or placed in, the pipeline produces, at least for the case, in which the medium is flowing with a velocity different from zero, a change in density of the medium, at least at times, in the vicinity of the modulation element; that at least one mechanically oscillatable unit introduced into, or placed in, the pipeline and spaced from the modulation element is excited to resonant oscillations; that mechanical oscillations are received by the mechanically oscillatable unit and converted into an electrical, received signal, wherein the received signal is sensitive to the density change; and that the at least one flow characteristic of the medium is determined from the reaction of the received signal of the mechanically oscillatable unit to the density change.