公开(公告)号：US6142015A

公开(公告)日：2000-11-07

申请号：US055636

申请日：1998-04-06

Applicant: Igor Getman ,  Sergej Lopatin ,  Roland Muller

Inventor： Igor Getman ,  Sergej Lopatin ,  Roland Muller

IPC: G01F23/28 ,  G01F23/296 ,  G01F23/00 ,  G01S9/68

CPC classification number: G01F23/2962 ,  G01F23/2961 ,  G01F23/2965 ,  G01F23/2968

Abstract: Sensing the level of a liquid in a vessel by the pulse transit time technique is done by means of an ultrasonic transducer mounted above the highest-permissible level in the vessel which emits ultrasonic transmission pulses to the surface of the liquid and receives the ultrasonic echo pulses reflected from the liquid surface. The level in the vessel is established from the transit time of the ultrasonic pulses. To detect an overfill when the ultrasonic transducer is immersed in the liquid the decaying output signal of the ultrasonic transducer generated by the ringing of the ultrasonic transducer following the end of the each ultrasonic transmission pulse is analyzed. In this arrangement the fact is exploited that due to the better coupling of the ultrasonic transducer to the liquid than to air the ringing duration is shorter when the ultrasonic transducer is covered by the liquid.

Abstract translation: 通过脉冲传播时间技术来检测容器中的液体的水平通过安装在容器中最高允许水平以上的超声波换能器来完成，该超声换能器向液体表面发射超声波传播脉冲并接收超声回波脉冲 从液面反射。 从超声波脉冲的通过时间确定容器内的电平。 为了检测超声波换能器浸没在液体中时的超填充物，分析了在每个超声波发射脉冲结束之后通过超音波振荡器振铃产生的超声换能器的衰减输出信号。 在这种布置中，利用超声波换能器与液体的耦合比空气更好地连接超声换能器时，振动持续时间更短。

公开(公告)号：US5755136A

公开(公告)日：1998-05-26

申请号：US732196

申请日：1996-10-16

Applicant: Igor Getman ,  Sergej Lopatin ,  Roland Muller

Inventor： Igor Getman ,  Sergej Lopatin ,  Roland Muller

IPC: G01F23/28 ,  G01F23/296 ,  G08B21/00

CPC classification number: G01F23/2961 ,  Y10S367/908

Abstract: For monitoring a predetermined level of a liquid in a container an ultrasonic transducer is fitted on the outer surface of the container wall at a measurement point situated at the height of the level to be monitored. The ultrasonic transducer when excited by an alternating voltage pulse having a given transmission frequency which equals the thickness resonant frequency of the container wall, transfers an ultrasonic transmission pulse to the container wall and converts ultrasonic vibrations, generated by reflected echo pulses, into electrical reception signals that are transferred to an evaluation circuit. In the evaluation circuit, on the one hand the presence or absence of echo signals is detected, and, on the other, the ultrasonic vibrations generated by the after-vibration of the container wall at the end of the transmission pulse are evaluated. As a result of this it can be determined with high error detection reliability whether the measurement point is covered by the liquid or not and whether the measurement arrangement is working satisfactorily.

Abstract translation: 为了监测容器中液体的预定水平，超声换能器在位于待监测水平高度的测量点处装配在容器壁的外表面上。 超声波换能器当被具有等于容器壁的厚度共振频率的给定传输频率的交流电压脉冲激发时，将超声波传输脉冲传送到容器壁并将由反射的回波脉冲产生的超声波振动转换为电接收信号 被传送到评估电路。 在评价电路中，一方面检测回波信号的存在或不存在，另一方面，评价在发送脉冲结束时由容器壁的后振动产生的超声波振动。 因此，可以用高错误检测可靠性确定测量点是否被液体覆盖，以及测量装置是否能令人满意地进行。

公开(公告)号：US5836192A

公开(公告)日：1998-11-17

申请号：US733099

申请日：1996-10-16

Applicant: Igor Getman ,  Sergej Lopatin ,  Roland Muller

Inventor： Igor Getman ,  Sergej Lopatin ,  Roland Muller

IPC: G01F23/28 ,  B06B1/06 ,  G01F23/296

CPC classification number: G01F23/2968 ,  B06B1/06 ,  G01F23/2965 ,  Y10S367/908

Abstract: For monitoring a predetermined level of a liquid in a container an ultrasonic transducer is fitted on the outer surface of the container wall at a measurement point situated at the height of the level to be monitored. The ultrasonic transducer contains a piezoelectric element which generates, when excited by an alternating voltage pulse having a given transmission frequency, an ultrasonic transmission pulse which is transferred via a diaphragm to the container wall and which converts ultrasonic vibrations transferred from the container wall to the ultrasonic transducer into electrical reception signals. So that the piezoelectric element for given dimensions can be operated in a large frequency range, and so that a good adaptation to the diaphragm is achieved, the piezoelectric element consists of a porous piezoelectric ceramic having a type 3--3 connectivity.

Abstract translation: 为了监测容器中液体的预定水平，超声换能器在位于待监测水平高度的测量点处装配在容器壁的外表面上。 超声波换能器包含一个压电元件，当被具有给定透射频率的交流电压脉冲激发时，产生一个超声波发射脉冲，该超声波发射脉冲通过隔膜传送到容器壁上，并将从容器壁传递的超声振动转换成超声波 传感器转换为电接收信号。 因此，用于给定尺寸的压电元件可以在大的频率范围内操作，并且实现了对膜片的良好适应性，压电元件由具有3-3型连接性的多孔压电陶瓷组成。

公开(公告)号：US5730025A

公开(公告)日：1998-03-24

申请号：US730944

申请日：1996-10-16

Applicant: Igor Getman ,  Sergej Lopatin ,  Roland Muller

Inventor： Igor Getman ,  Sergej Lopatin ,  Roland Muller

IPC: G01F23/28 ,  G01F23/296 ,  G01F1/72

CPC classification number: G01F23/2968 ,  G01F23/2965 ,  Y10S367/908

Abstract: For monitoring a predetermined level of a liquid in a container an ultrasonic transducer is fitted on the outer surface of the container wall at a measurement point situated at the height of the level to be monitored. The ultrasonic transducer contains a piezoelectric element which generates, when excited by an alternating voltage pulse having a given transmission frequency, an ultrasonic transmission pulse which is transferred via a diaphragm to the container wall and which converts ultrasonic vibrations transferred from the container wall to the ultrasonic transducer into electrical reception signals. The diaphragm comprises on the side facing the container wall protuberances which adjoin the container wall. Between the diaphragm and the container wall a coupling layer is arranged, the thickness of which is determined by the height of the protuberances. As a result of this the formation of a layer of air between the diaphragm and the container wall is prevented and a jump in impedance avoided so that a good acoustical coupling exists between the diapragm and the container wall.

Abstract translation: 为了监测容器中液体的预定水平，超声换能器在位于待监测水平高度的测量点处装配在容器壁的外表面上。 超声波换能器包含一个压电元件，当被具有给定透射频率的交流电压脉冲激发时，产生一个超声波发射脉冲，该超声波发射脉冲通过隔膜传送到容器壁上，并将从容器壁传递的超声振动转换成超声波 传感器转换为电接收信号。 隔膜包括在与容器壁相邻的容器壁突起的一侧上。 在隔膜和容器壁之间布置有耦合层，其厚度由突起的高度决定。 因此，防止在隔膜和容器壁之间形成空气层，避免了阻抗的跳跃，从而在二极管和容器壁之间存在良好的声耦合。

公开(公告)号：US5969621A

公开(公告)日：1999-10-19

申请号：US59160

申请日：1998-04-13

Applicant: Igor Getman ,  Sergej Lopatin

Inventor： Igor Getman ,  Sergej Lopatin

IPC: B06B1/02 ,  B06B1/06 ,  G01F23/296 ,  G08B21/00

CPC classification number: B06B1/0622 ,  B06B1/0692 ,  G01F23/2967 ,  B06B2201/74

Abstract: An apparatus for establishing and/or monitoring a pre-determined filling level in a container is provided, in which the reception signal (E) corresponds to the desired measurement signal and in which a fixed phase difference (.DELTA..phi..sub.R), which is independent of the oscillation quality of the apparatus, exists between the transmission signal and the reception signal (E) at the resonant frequency (f.sub.r) of the mechanical oscillatory structure (1). The apparatus comprises a mechanical oscillatory structure (1) and a piezoelectric element (2), which has at least three regions, a first region (I) having a transmission electrode (21), a second region (II) having a first reception electrode (22) and a third region (III) having a second reception electrode (23), the two reception electrodes (22, 23) having an identical form and being arranged symmetrically with respect to one another and to the transmission electrode (21), and in the first and in the second region (I, II), the piezoelectric element (2) having a polarization which is in the opposite direction to a polarization of the third region (III). The reception signal (E) is equal to the difference between a first signal (E.sub.1), which is present at the first reception electrode (22), and a second signal (E.sub.2), which is present at the second reception electrode (23).

Abstract translation: 提供了一种用于在容器中建立和/或监视预定填充水平的装置，其中接收信号（E）对应于期望的测量信号，其中固定相位差（DELTA phi R）是独立的 在机械振荡结构（1）的谐振频率（fr）处存在传输信号和接收信号（E）之间的装置的振荡质量。 该装置包括具有至少三个区域的机械振荡结构（1）和压电元件（2），具有透射电极（21）的第一区域（I），具有第一接收电极 （22）和具有第二接收电极（23）的第三区域（III），所述两个接收电极（22,23）具有相同的形状并且相对于彼此对称地布置到所述发送电极（21）， 并且在第一和第二区域（I，II）中，压电元件（2）具有与第三区域（III）的极化方向相反的偏振。 接收信号（E）等于存在于第一接收电极（22）的第一信号（E1）与存在于第二接收电极（23）的第二信号（E2）之间的差， 。

公开(公告)号：US5815079A

公开(公告)日：1998-09-29

申请号：US641560

申请日：1996-05-01

Applicant: Igor Getman ,  Sergej Lopatin

Inventor： Igor Getman ,  Sergej Lopatin

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

CPC classification number: G01F23/2965 ,  G01F23/2967

Abstract: A description is given of a sturdy device for establishing and/or monitoring a predetermined filling level in a container, which device exhibits a housing (1), two oscillating rods (3, 4) projecting into the container, a first diaphragm (2) which is fixedly clamped, at its border, into the housing (1), a second diaphragm (6, 6') which is arranged parallel to said first diaphragm in the interior of the housing (1), a piezoelectric element (7, 7') which is arranged on the second diaphragm (6, 6') and is intended for receiving and converting oscillations into an electric output signal and for inducing bending oscillations in the second diaphragm (6, 6'), and in the case of which device the mode of oscillation produced by the piezoelectric element (7, 7') corresponds to the mode of oscillation utilized for inducing oscillation in the oscillating rods (3, 4).

Abstract translation: 给出了用于建立和/或监测容器中的预定填充水平的坚固装置的描述，该装置具有壳体（1），突出到容器中的两个摆动杆（3,4），第一隔膜（2） 其在其边界处被固定地夹紧到壳体（1）中，在壳体（1）的内部平行于所述第一隔膜布置的​​第二隔膜（6,6'），压电元件（7,7） '），其布置在第二隔膜（6,6'）上，用于接收和转换振荡为电输出信号并且用于引起第二隔膜（6,6'）中的弯曲振荡，并且在其中 装置由压电元件（7,7'）产生的振荡模式对应于用于在振荡杆（3,4）中引起振荡的振荡模式。

公开(公告)号：US06834419B2

公开(公告)日：2004-12-28

申请号：US10704162

申请日：2003-11-07

Applicant: Sergej Lopatin ,  Igor Getman ,  Anatoliy Panitch ,  Yuriy Wusewker

Inventor： Sergej Lopatin ,  Igor Getman ,  Anatoliy Panitch ,  Yuriy Wusewker

IPC: H04R1700

CPC classification number: G01F23/2968 ,  G01P15/09 ,  H01L41/0472 ,  H01L41/0835 ,  H01L41/1132 ,  Y10T29/42 ,  Y10T29/49128 ,  Y10T29/4913 ,  Y10T29/49135 ,  Y10T29/49139 ,  Y10T29/49146 ,  Y10T29/49165 ,  Y10T29/49798

Abstract: The invention relates to an electromechanical drive or a sensor element composed of piezoelectric elements arranged in the form of a stack. The drive or the sensor element is intended for measurement instruments and operates even at very high temperatures. The new drive or the new sensor element (10) for this purpose comprises a number of piezoelectric ceramic layers (12a-f), with electrode layers (16a-e) in each case being arranged between two mutually facing surfaces of directly adjacent piezoelectric ceramic layers. Connectors (18a,b) in the form of wires run in grooves (14a-d) in the electrode layers (16a-e) in order to make electrical contact with the electrode layers (16a-e), and are passed out of the electrode layers (16a-e).

Abstract translation: 本发明涉及一种机电驱动器或由堆叠形式布置的压电元件组成的传感器元件。 驱动器或传感器元件用于测量仪器，即使在非常高的温度下也可以运行。用于此目的的新驱动器或新的传感器元件（10）包括多个压电陶瓷层（12a-f），其具有电极层 16a-e）在每种情况下被布置在直接相邻的压电陶瓷层的两个相互面对的表面之间。 电线形式的连接器（18a，b）在电极层（16a-e）中的凹槽（14a-d）中延伸，以便与电极层（16a-e）电接触，并且从 电极层（16a-e）。

公开(公告)号：US06644116B2

公开(公告)日：2003-11-11

申请号：US10174486

申请日：2002-06-19

Applicant: Igor Getman ,  Sergej Lopatin ,  Armin Rupp ,  Bernd Kastner

Inventor： Igor Getman ,  Sergej Lopatin ,  Armin Rupp ,  Bernd Kastner

IPC: G01F2328

CPC classification number: G01F23/2968 ,  G01F23/2967

Abstract: A device for determining and/or monitoring the level of a medium in a container or for ascertaining the density of a medium in the container embodied as a vibration detector. According to the invention the vibration detector still functions reliably even under extreme process conditions and upon abrupt changes in process conditions. The vibration detector has a tubular inner part provided, which is dimensioned such that it is positioned between the housing wall and a drive/receiving unit, and that the tubular inner part is connected to the housing or to the diaphragm.

Abstract translation: 一种用于确定和/或监测容器中的介质的水平或用于确定容器中的作为振动检测器的容器中的介质的密度的装置。 根据本发明，振动检测器即使在极端的工艺条件下也能够可靠地工作，并且在工艺条件突然变化时仍然可靠地起作用。 振动检测器具有设置的管状内部，其尺寸使其位于壳体壁和驱动/接收单元之间，并且管状内部部分连接到壳体或隔膜。

公开(公告)号：US06263731B1

公开(公告)日：2001-07-24

申请号：US09067129

申请日：1998-04-27

Applicant: Igor Getman ,  Sergej Lopatin

Inventor： Igor Getman ,  Sergej Lopatin

IPC: G01F2328

CPC classification number: G01F23/2961 ,  G01F23/2962 ,  G01N2291/02836 ,  Y10S367/908

Abstract: An assembly for monitoring a predetermined level of a material in a container comprises two ultrasonic transducers mounted on the container in line with the level to be monitored, such that an interspace exists between the ultrasonic transducers into which the material enters on attaining the level to be monitored. The one ultrasonic transducer is an emitter transducer which at predetermined points in time for emitting ultrasonic pulses is energized by a frequency which is so low that the ultrasonic pulses are transmitted through the interspace to the detector transducer even when the interspace is filled with air. The other ultrasonic transducer is a detector transducer which converts detected ultrasonic pulses into electrical detection signals. To determine whether or not material is in the interspace between the ultrasonic transducers a check is made as to whether the detector transducer outputs after each point in time of emission a detection signal in a time interval corresponding to the transit time of the ultrasonic pulses from the emitter transducer to the detector transducer in air.

Abstract translation: 用于监测容器中材料的预定水平的组件包括安装在容器上的两个超声波换能器，以与被监测的水平一致，使得在材料进入的超声波换能器之间存在间隙，达到等于 监控。 一个超声波换能器是发射体传感器，其在用于发射超声波脉冲的预定时间点被以非常低的频率激励，使得即使当空间充满空气时，超声脉冲也通过该间隙传输到检测器换能器。 另一个超声波换能器是一种检测器转换器，将检测到的超声波脉冲转换成电检测信号。 为了确定材料是否在超声波换能器之间的间隙中，检查检测器传感器在每个发射点之后输出的检测信号是否与来自该超声波换能器的超声波脉冲的通过时间相对应的时间间隔 发射器传感器到空气中的检测器传感器。

公开(公告)号：US6148665A

公开(公告)日：2000-11-21

申请号：US55179

申请日：1998-04-03

Applicant: Igor Getman ,  Sergej Lopatin

Inventor： Igor Getman ,  Sergej Lopatin

IPC: G01F23/296 ,  G01F23/28 ,  G08B21/00

CPC classification number: G01F23/2967

Abstract: An arrangement for establishing and/or monitoring a predetermined filling level is described, in which a fixed phase difference (.DELTA..phi..sub.R), which is independent of the oscillation quality of the arrangement, exists between a transmission signal and a reception signal (E) at the resonant frequency of the mechanical oscillatory structure. This arrangement comprises a mechanical oscillatory structure (1) at least one transmitter (3), which excites the oscillatory structure (1) to produce oscillations, and two piezoelectric elements as receivers (24a, 24b). In accordance with a first variant, a first signal line (241a) of the first receiver (24a) is connected to an electrode which is arranged on a surface which bounds the first receiver (24a) in a direction opposite to its polarization. A second signal line (241b) of the second receiver (24b) is connected to the transmission signal line (5) via an electrical impedance (Z). The second signal line (241b) of the second receiver (24b) is connected to an electrode which is arranged on a surface which bounds the receiver (24b) in the direction of its polarization. The reception signal (E) is equal to the difference between the two electrical signals (E.sub.1, E.sub.2).

Abstract translation: 描述了用于建立和/或监视预定填充水平的装置，其中在发送信号和接收信号（E）之间存在独立于装置的振荡质量的固定相位差（DELTA phi R） 在机械振荡结构的谐振频率。 这种布置包括机械振荡结构（1）至少一个发射器（3），其激发振荡结构（1）产生振荡，以及两个压电元件作为接收器（24a，24b）。 根据第一变型，第一接收器（24a）的第一信号线（241a）连接到布置在与其极化相反的方向上限定第一接收器（24a）的表面上的电极。 第二接收器（24b）的第二信号线（241b）经由电阻抗（Z）连接到发送信号线（5）。 第二接收器（24b）的第二信号线（241b）连接到布置在接收器（24b）沿其极化方向界定的表面上的电极。 接收信号（E）等于两个电信号（E1，E2）之间的差。