公开(公告)号：US08997556B2

公开(公告)日：2015-04-07

申请号：US13140174

申请日：2009-12-11

申请人： Martin Urban ,  Serguej Lopatin ,  Helmut Pfeiffer

发明人： Martin Urban ,  Serguej Lopatin ,  Helmut Pfeiffer

IPC分类号： G01N29/02 ,  G01F23/296

CPC分类号： G01F23/2967

摘要： An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one mechanically oscillatable unit, which comes in contact at least partially with the medium; at least one transducer unit, which excites the mechanically oscillatable unit to execute mechanical oscillations and which receives mechanical oscillations from the mechanically oscillatable unit; and at least one housing. At least one limiting element is provided. The limiting element is embodied and arranged in such a manner that the limiting element at least partially surrounds the mechanically oscillatable unit and the therefrom resulting reduction of volume surrounding the mechanically oscillatable unit increases the measuring sensitivity of the apparatus. Furthermore, the invention relates to a limiting element.

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：至少一个机械振荡单元，其至少部分地与介质接触; 至少一个换能器单元，其激励机械振荡单元执行机械振荡并且从机械振荡单元接收机械振荡; 和至少一个外壳。 提供至少一个限制元件。 限制元件以这样的方式被实施和布置，使得限制元件至少部分地围绕机械可振荡的单元，并且由此导致围绕机械可振荡单元的体积的减小增加了设备的测量灵敏度。 此外，本发明涉及限制元件。

公开(公告)号：US08919192B2

公开(公告)日：2014-12-30

申请号：US13390160

申请日：2010-07-21

申请人： Helmut Pfeiffer ,  Alexander Muller ,  Volker Dryer ,  Sergej Lopatin

发明人： Helmut Pfeiffer ,  Alexander Muller ,  Volker Dryer ,  Sergej Lopatin

IPC分类号： G01F23/00 ,  G01F23/296 ,  G01N9/32 ,  G01N11/16 ,  G01N11/10 ,  G01N9/00

CPC分类号： G01F23/2967 ,  G01N9/002 ,  G01N9/32 ,  G01N11/167

摘要： A multivariable sensor for determining and/or monitoring a predetermined fill level and density and/or viscosity of a liquid in a container. The sensor comprises a measuring tube provided in the container. The measuring tube has at least a first oscillatable segment and a second oscillatable segment, wherein the oscillatable segments have a cross sectional area deviating from a circularly round shape and at least one straight side, wherein on an inner wall of the oscillatable segments, driver/receiving units are placed, which cause the oscillatable segments to execute resonant oscillations. At least one control/evaluation unit is provided, which evaluates frequency and/or phase and/or amplitude of the oscillations and determines therefrom reaching of the predetermined fill level and density and/or viscosity of the liquid.

摘要翻译： 用于确定和/或监测容器中的液体的预定填充水平和密度和/或粘度的多变量传感器。 传感器包括设置在容器中的测量管。 测量管具有至少第一可振动部分和第二可振动部分，其中可振动部分具有偏离圆形圆形和至少一个直边的横截面面积，其中在可振动部分的内壁上，驱动器/ 接收单元被放置，这导致可振荡段执行谐振振荡。 提供至少一个控制/评估单元，其评估振荡的频率和/或相位和/或振幅，并由此确定达到预定填充水平和液体的密度和/或粘度。

公开(公告)号：US07681445B2

公开(公告)日：2010-03-23

申请号：US11658147

申请日：2005-07-05

申请人： Helmut Pfeiffer

发明人： Helmut Pfeiffer

IPC分类号： G01F23/28

CPC分类号： G01F23/2967 ,  G01F23/2965 ,  G01F23/2968

摘要： An apparatus for determining and/or monitoring at least one process variable of a medium and includes: A mechanically oscillatable unit, which executes mechanical oscillations in a direction and which is secured at a seating. Included is an exciting/receiving unit, which excites the mechanically oscillatable unit to mechanical oscillations and which receives the mechanical oscillations of the mechanically oscillatable unit; and a control/evaluation unit, which controls the mechanical oscillations of the mechanically oscillatable unit and which determines and/or monitors the process variable. At least one compensating mass is provided, which is mechanically coupled with the mechanically oscillatable unit and which is embodied and/or secured in such a manner that it executes mechanical oscillations in a direction, wherein the direction of the oscillations of the compensating mass are essentially perpendicular to the direction of the oscillations of the mechanically oscillatable unit.

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：机械振荡单元，其执行方向上的机械振荡并且固定在座位上。 包括激励/接收单元，其将机械振荡单元激发到机械振荡并且其接收机械振荡单元的机械振荡; 以及控制/评估单元，其控制机械振荡单元的机械振荡并且确定和/或监视过程变量。 提供至少一个补偿质量块，其与机械振荡单元机械耦合，并且以这样的方式实现和/或固定，使得其在一个方向上执行机械振荡，其中补偿质量块的振荡方向基本上是 垂直于机械振荡单元的振荡方向。

公开(公告)号：US20100030486A1

公开(公告)日：2010-02-04

申请号：US12086644

申请日：2006-11-24

申请人： Sergej Lopatin ,  Helmut Pfeiffer

发明人： Sergej Lopatin ,  Helmut Pfeiffer

IPC分类号： G06F19/00 ,  G01L7/00

CPC分类号： G01N29/022 ,  G01L9/0016 ,  G01L9/0022 ,  G01N29/036 ,  G01N2291/02872

摘要： A method for determining and/or monitoring at least one measured variable of an at least partially gaseous medium with at least one mechanically oscillatable unit, which is excited to execute mechanical oscillations, and whose mechanical oscillations are received and evaluated. At least one characteristic curve is stored, which describes for at least one gas or a gas mixture at least the dependence of at least one characteristic variable of the mechanical oscillations of the mechanically oscillatable unit on pressure; at least the characteristic variable of the mechanical oscillations of the mechanically oscillatable unit is determined; the determined characteristic variable is compared with the stored characteristic curve; and, starting from the comparison of the determined characteristic variable with the stored characteristic curve, the measured variable of the medium is determined. Further, an apparatus for determining and/or monitoring the measured variable is envisioned.

摘要翻译： 一种用至少一个机械振荡单元来确定和/或监测至少一个测量的至少部分气体介质的变量的方法，所述至少一个机械振荡单元被激励以执行机械振荡，并且其机械振荡被接收和评估。 存储至少一个特性曲线，其至少描述了至少一种气体或气体混合物，至少一个机械振荡单元的机械振荡的至少一个特征变量对压力的依赖性; 至少确定机械振荡单元的机械振荡的特征变量; 将确定的特征变量与存储的特性曲线进行比较; 并且从确定的特征变量与存储的特性曲线的比较开始，确定介质的测量变量。 此外，设想了用于确定和/或监视测量变量的装置。

公开(公告)号：US20070151369A1

公开(公告)日：2007-07-05

申请号：US11634087

申请日：2006-12-06

申请人： Ennio Bitto ,  Gerhard Eckert ,  Sergej Lopatin ,  Christian Matt ,  Helmut Pfeiffer ,  Alfred Rieder ,  Martin Anklin-Imhof ,  Martin Stucki

发明人： Ennio Bitto ,  Gerhard Eckert ,  Sergej Lopatin ,  Christian Matt ,  Helmut Pfeiffer ,  Alfred Rieder ,  Martin Anklin-Imhof ,  Martin Stucki

IPC分类号： G01F1/84

CPC分类号： G01F1/8477 ,  G01F1/8409 ,  G01F1/8413 ,  G01F1/8422 ,  G01F1/8427

摘要： The measurement transducer includes at least two oscillatably held transducer tubes vibrating, at least at times, during operation, of which at least one transducer tube serving to convey at least a volume portion of a medium to be measured, communicates with a pipeline; as well as at least one transducer element for converting electrical energy into mechanical and/or vice versa. The two transducer tubes are mechanically coupled together by means of at least one, inlet-side, coupling element and by means of at least one, outlet-side, coupling element in such a manner that both the inlet-side coupling element, as well as also the outlet-side coupling element, are subjected during operation repeatedly to deformations which correspond to vibrations of at least one of the two transducer tubes for converting electrical energy into mechanical, oscillatory energy and/or vice versa. The transducer element, especially a transducer element formed by means of a piezoelectric, deformation body, and at least one of the coupling elements, are, at least mediately, mechanically coupled together in such a manner that the transducer element executes, at least in part, oscillatory movements, which correspond with the repeated deformations at least of this coupling element.

摘要翻译： 该测量传感器包括至少两个可振荡地保持的换能器管，至少在操作期间振动，其中至少一个用于输送要测量的介质的体积部分的换能器管与管道连通; 以及用于将电能转换成机械和/或反之亦然的至少一个换能器元件。 两个换能器管通过至少一个入口侧联接元件并且借助于至少一个出口侧联接元件以这样的方式机械耦合在一起，使得入口侧耦合元件以及 以及出口侧联接元件也在重复操作时经受对应于两个换能器管中的至少一个的振动的变形，用于将电能转换成机械振荡能量和/或反之亦然。 传感器元件，特别是通过压电变形体和至少一个耦合元件形成的换能器元件至少中介地以这样的方式机械耦合在一起，使得换能器元件至少部分地执行 ，振荡运动，其至少与该耦合元件的重复变形相对应。

公开(公告)号：US07190105B2

公开(公告)日：2007-03-13

申请号：US10509685

申请日：2003-04-09

申请人： Rolf Deserno ,  Helmut Pfeiffer

发明人： Rolf Deserno ,  Helmut Pfeiffer

IPC分类号： H01L41/08

CPC分类号： H04R17/00

摘要： A sound or ultrasound sensor having a radiation characteristic with a preferably small beam angle and producing very little interference signals, including a pot-shaped housing closed at its bottom end by a floor, a piezoelectric element for producing and/or receiving sound or ultrasound through the floor, a matching layer between the piezoelectric element and the floor, and a metal ring gripping around the matching layer with an interlocking fit.

摘要翻译： 一种具有辐射特性的声音或超声波传感器，其辐射特性优选地具有较小的光束角，并且产生非常小的干扰信号，包括在其底端由地板封闭的盆形壳体，用于产生和/或接收声音或超声波的压电元件 地板，压电元件和地板之间的匹配层，以及以互锁配合夹在匹配层周围的金属环。

公开(公告)号：US20060290524A1

公开(公告)日：2006-12-28

申请号：US11512120

申请日：2006-08-30

申请人： Helmut Pfeiffer

发明人： Helmut Pfeiffer

IPC分类号： G08B21/00

CPC分类号： G01F23/2968 ,  G01F23/2967

摘要： A device for establishing and/or monitoring a predetermined fill level in a container is provided, to indicate the fill level in a container and exhibiting a best possible, optimum fit for an application, which device includes: a mechanical oscillatory structure placed at the height of the predetermined fill level, which structure exhibits a membrane and two mutually separated oscillation bars formed thereon, an electromechanical transducer, which in operation excites the oscillatory structure to oscillate with oscillations, such that the oscillation bars execute oscillations perpendicular to their longitudinal axis, a receiver- and evaluation-unit, which uses the oscillations to establish and/or monitor whether the predetermined fill level has been reached, or not, in which the oscillation bars exhibit a shape in which a mass moment of inertia of a liquid quantity, which the oscillation bars move with them in the immersed state in the liquid, is as large as possible and greater than 0.2 times a mass moment of inertia of the oscillation bars.

摘要翻译： 提供了用于建立和/或监视容器中的预定填充水平的装置，以指示容器中的填充水平并呈现出对应用的最佳可能的最佳拟合，该装置包括：放置在高度处的机械振荡结构 的预定填充水平，该结构呈现出形成在其上的膜和两个相互分离的振荡条，机电换能器在操作中激发振荡结构以振荡振荡，使得振荡棒执行垂直于其纵轴的振荡， 接收器和评估单元，其使用振荡来建立和/或监视是否已经达到预定填充水平，其中振荡条呈现其中液体的质量惯性矩的形状，其中 振荡棒随着它们在液体中的浸入状态移动，尽可能大并且大于0 振动棒的惯性矩的2倍。

公开(公告)号：US06205855B1

公开(公告)日：2001-03-27

申请号：US08978763

申请日：1997-11-26

申请人： Helmut Pfeiffer

发明人： Helmut Pfeiffer

IPC分类号： G01F23028

CPC分类号： G01F23/2967

摘要： A device for monitoring a predetermined level in a container contains a sensor formed by a mechanical vibratory system comprising two vibratory rods, of which at least one vibratory rod is tubular and surrounds the other vibratory rod coaxially. Each of the two vibratory rods is secured to a common support via a resilient holding member acting as a return spring so that each rod is able to execute vibrations transversely to its longitudinal direction. An excitation arrangement causes the two vibratory rods to vibrate transversely in opposite senses at the natural resonant frequency of the mechanical vibratory system. The sensor is fitted to the container so that the tubular outer vibratory rod comes into contact with the material in the container when the material attains the level to be monitored. An evaluation circuit serves to trigger display or switching actions as a function of the vibration amplitude of the mechanical vibratory system. To compensate changes in the resonant frequency of the vibratory assembly formed by the outer vibratory rod and its resilient holding member when a deposit materializes, the inner vibratory rod is provided with a compensating mass which is shiftable in the longitudinal direction of the vibratory rod. By shifting the compensating mass the resonant frequency of the vibratory assembly formed by the inner vibratory rod and its resilient holding member can be adapted to the resonant frequency of the outer vibratory assembly.

摘要翻译： 用于监测容器中预定水平的装置包含由包括两个振动杆的机械振动系统形成的传感器，其中至少一个振动杆是管状的，并且同轴地围绕另一个振动杆。 两个振动杆中的每一个通过用作复位弹簧的弹性保持构件固定到公共支撑件，使得每个杆能够横向于其纵向方向执行振动。 激励装置使得两个振动杆以机械振动系统的固有谐振频率在相反的方向上横向振动。 传感器安装到容器上，使得当材料达到待监测的水平时，管状外部振动杆与容器中的材料接触。 评估电路用于触发作为机械振动系统的振幅的函数的显示或切换动作。 为了补偿当沉积物形成时由外部振动杆及其弹性保持构件形成的振动组件的谐振频率的变化，内部振动杆设置有可在振动杆的纵向方向上移动的补偿质量块。 通过移动补偿质量，由内部振动杆及其弹性保持构件形成的振动组件的共振频率可以适应于外部振动组件的共振频率。

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：US20100154546A1

公开(公告)日：2010-06-24

申请号：US12448948

申请日：2007-12-20

申请人： Sascha D'Angelico ,  Serjeg Lopatin ,  Helmut Pfeiffer

发明人： Sascha D'Angelico ,  Serjeg Lopatin ,  Helmut Pfeiffer

IPC分类号： G01N29/00

CPC分类号： G01F23/2967 ,  G01F23/2965 ,  G01F23/2968 ,  G01N9/002 ,  G01N11/16 ,  G10K9/122

摘要： An apparatus for determining and/or monitoring at least one process variable of a medium, including: at least one mechanically oscillatable membrane, which has a plurality of natural eigenmodes; and at least one driving/receiving unit, which excites the membrane to execute mechanical oscillations and/or which receives mechanical oscillations from the membrane. The driving/receiving unit and the membrane are embodied and matched to one another in such a manner, that the membrane executes only mechanical oscillations, which correspond to modes, which lie above the fundamental mode of the membrane.

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：至少一个具有多个天然本征模的可机械振荡的膜; 以及至少一个驱动/接收单元，其激发膜以执行机械振荡和/或从膜接收机械振荡。 驱动/接收单元和膜以这样的方式相互实现和匹配，膜仅执行机械振荡，其对应于位于膜的基本模式之上的模式。