公开(公告)号：US20100095750A1

公开(公告)日：2010-04-22

申请号：US11989884

申请日：2006-08-02

Applicant: Takeo Oita ,  Takehito Ishii

Inventor： Takeo Oita ,  Takehito Ishii

IPC: G01N29/036

CPC classification number: G01N11/16 ,  G01N29/036 ,  G01N29/4427 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/02809 ,  G01N2291/02818

Abstract: In a concentration sensor using a piezoelectric piece, for instance, a quartz piece in which the natural frequency is varied by adsorption of a sensing target, the object of the present invention is to make the concentration sensor applicable to various fluids to be measured different in viscosity while restricting consumption of the oscillation energy due to interelectrode capacitance, and to be able to cope with plural types of concentration sensors while using a common oscillation circuit.As a concrete means for solving the problem, an inductor is connected in parallel to the piezoelectric piece, and its inductance value is determined based on the relation between inductance values and oscillation loop gains in a gap between the inductance value Lmax canceling the interelectrode capacitance in a resonance frequency of the piezoelectric piece and the inductance value Lmin evaluated as the minimum value among the inductance values with which the piezoelectric piece can oscillate in a state of being immersed in a measuring fluid.

Abstract translation: 在使用压电片的浓度传感器中，例如通过感测对象物的吸附而使固有频率变化的石英片，本发明的目的在于使浓度传感器适用于各种被测量的液体， 同时限制由电极间电容引起的振荡能量的消耗，并且能够在使用共同的振荡电路的同时处理多种浓度传感器。 作为解决问题的具体手段，电感器与压电片并联连接，其电感值基于电感值Lmax和电感值Lmax之间的间隙中的振荡环路增益之间的关系确定，以消除电极间电容 压电片的谐振频率和电感值Lmin被评价为在浸入测量流体中的压电片可以摆动的电感值中的最小值。

公开(公告)号：US20090241646A1

公开(公告)日：2009-10-01

申请号：US12382489

申请日：2009-03-17

Applicant: Alfred Rieder ,  Wolfgang Drahm

Inventor： Alfred Rieder ,  Wolfgang Drahm

IPC: G01N11/10 ,  G01F25/00

CPC classification number: G01N11/16 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/8431 ,  G01F1/8468 ,  G01F1/849 ,  G01N9/002 ,  G01N11/162 ,  G01N11/167 ,  G01N2009/006

Abstract: The viscometer provides a viscosity value (Xη) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for conducting the fluid, which communicates with the pipe. Driven by an excitation assembly, the flow tube is vibrated so that friction forces are produced in the fluid. The viscometer further includes meter electronics which feed an excitation current (iexc) into the excitation assembly. By means of the meter electronics, a first internal intermediate value (X1) is formed, which corresponds with the excitation current (iexc) and thus represents the friction forces acting in the fluid. According to the invention, a second internal intermediate value (X2), representing inhomogeneities in the fluid, is generated in the meter electronics, which then determine the viscosity value (Xη) using the two intermediate values (X1, X2). The first internal intermediate value (X1) is preferably normalized by means of an amplitude control signal (yAM) for the excitation current (iexc), the amplitude control signal corresponding with the vibrations of the flow tube. As a result, the viscosity value (Xη) provided by the viscometer is highly accurate and robust, particularly independently of the position of installation of the flow tube.

Abstract translation: 粘度计提供粘度值（Xeta），其表示在与其连接的管道中流动的流体的粘度。 它包括具有至少一个用于传导流体的流管的振动换能器，其与管道连通。 由激励组件驱动，流管被振动，使得在流体中产生摩擦力。 粘度计还包括将励磁电流（即xc）馈送到励磁组件中的仪表电子装置。 通过仪表电子设备，形成第一内部中间值（X1），其对应于激励电流（iexc），因此表示作用在流体中的摩擦力。 根据本发明，在仪表电子设备中产生表示流体中不均匀性的第二内部中间值（X2），其然后使用两个中间值（X1，X2）确定粘度值（Xeta）。 第一内部中间值（X1）优选地通过用于激励电流（iexc）的幅度控制信号（yAM）归一化，该振幅控制信号对应于流管的振动。 结果，由粘度计提供的粘度值（Xeta）高度精确和鲁棒，特别是独立于流动管的安装位置。

公开(公告)号：US07578172B2

公开(公告)日：2009-08-25

申请号：US11648875

申请日：2006-12-29

Applicant: Jin Hee Cho

Inventor： Jin Hee Cho

IPC: G01N11/10

CPC classification number: G01N11/16 ,  G01N33/2888

Abstract: A symmetrical viscosity sensor for measuring the viscosity of fluids such as transmission oil or engine oil. Torsion oscillators are arranged symmetrically on both sides. The viscosity sensor includes a coupling shaft; a torsion oscillator coupled symmetrically to both ends of the coupling shaft; at least one insulator coupled to a center portion of said coupling shaft; a plurality of oscillation means arranged between each torsion oscillator and the insulator; a signal transmission/reception line for transmitting and receiving a driving and detection signal of said oscillation means; and a control unit for controlling said driving and detection signal via said signal transmission/reception line.

Abstract translation: 用于测量传动油或发动机油等流体粘度的对称粘度传感器。 扭转振荡器对称布置在两侧。 粘度传感器包括联接轴; 耦合轴的两端对称地连接的扭转振荡器; 耦合到所述耦合轴的中心部分的至少一个绝缘体; 布置在每个扭转振荡器和绝缘体之间的多个振荡装置; 用于发送和接收所述振荡装置的驱动和检测信号的信号发送/接收线路; 以及用于经由所述信号发送/接收线路控制所述驱动和检测信号的控制单元。

公开(公告)号：US20090095072A1

公开(公告)日：2009-04-16

申请号：US12331694

申请日：2008-12-10

Applicant: Hideki Shimizu ,  Takao Ohnishi ,  Tomohiro Yamada

Inventor： Hideki Shimizu ,  Takao Ohnishi ,  Tomohiro Yamada

IPC: G01N9/00 ,  H01L41/04 ,  H01L41/22

CPC classification number: G01N29/2462 ,  G01N11/16 ,  G01N29/022 ,  G01N33/0042 ,  G01N33/2835 ,  G01N2291/014 ,  G01N2291/02809 ,  G01N2291/02818 ,  H01L41/0477 ,  H01L41/0973 ,  H01L41/187 ,  H01L41/257 ,  H01L41/314 ,  Y10T29/42

Abstract: Disclosed is a piezoelectric/electrostrictive membrane type sensor 20 provided with a ceramic base body 1 and a piezoelectric/electrostrictive element 12. The ceramic base body is provided with a thin diaphragm portion 3, a thick portion 2 and a cavity 10 formed by the portions. The piezoelectric/electrostrictive element is arranged on the ceramic base body 1 and includes a piezoelectric/electrostrictive body 5, and an upper electrode 6 and a lower electrode 4 sandwiching the piezoelectric/electrostrictive body 5. In the piezoelectric/electrostrictive membrane type sensor 20, the piezoelectric/electrostrictive body 5 contains an alkaline metal or an alkaline earth metal, and the upper electrode 6 and the lower electrode 4 contain gold or platinum. When there is a change in the atmosphere at a place where the sensor is used, the sensor copes with such change and at least prevents continuation of low-quality measurement.

Abstract translation: 公开了一种设置有陶瓷基体1和压电/电致伸缩元件12的压电/电致伸缩膜型传感器20.陶瓷基体设置有薄膜部分3，厚部分2和由部分形成的空腔10 。 压电/电致伸缩元件设置在陶瓷基体1上，并且包括压电/电致伸缩体5和夹持压电/电致伸缩体5的上电极6和下电极4.在压电/电致伸缩膜型传感器20中， 压电/电致伸缩体5含有碱金属或碱土金属，上电极6和下电极4含有金或铂。 当在使用传感器的地方存在气氛变化时，传感器处理这种变化，并且至少防止继续进行低质量的测量。

公开(公告)号：US20090084167A1

公开(公告)日：2009-04-02

申请号：US12293234

申请日：2007-03-14

Applicant: Vladislav Djakov ,  Ejaz Huq ,  Richard John Dunn

Inventor： Vladislav Djakov ,  Ejaz Huq ,  Richard John Dunn

IPC: G01N11/00 ,  G01N37/00

CPC classification number: G01N9/002 ,  G01N11/16 ,  Y10T29/49002

Abstract: A device for measuring the properties of a fluid, a method of manufacture, and a method of operation is described. The device includes a body region, a first flexible element and a second flexible element. Each flexible element has a first end and a second end, the first end being fixedly located on the body region. Each flexible element is moveable from at least a first respective configuration to a second respective configuration via bending of the element. The first flexible element includes an actuating portion arranged to move the flexible element between the first configuration and the second configuration. The second flexible element includes an integral movement sensor for sensing movement of the flexible element. The first flexible element is coupled to the second flexible element at a position distant from the body region. Only the actuating portion of the first flexible element is operable to move the first and second flexible elements.

Abstract translation: 描述了用于测量流体性质的装置，制造方法和操作方法。 该装置包括主体区域，第一柔性元件和第二柔性元件。 每个柔性元件具有第一端和第二端，第一端固定地位于身体区域上。 每个柔性元件可以通过元件的弯曲从至少第一相应构造移动到第二相应构造。 第一柔性元件包括致动部分，其被布置成在第一构造和第二构造之间移动柔性元件。 第二柔性元件包括用于感测柔性元件的移动的整体运动传感器。 第一柔性元件在远离身体区域的位置处联接到第二柔性元件。 只有第一柔性元件的致动部分可操作以移动第一和第二柔性元件。

公开(公告)号：US20090064766A1

公开(公告)日：2009-03-12

申请号：US11883088

申请日：2006-01-26

Applicant: Monika Scherer

Inventor： Monika Scherer

IPC: G01N11/16

CPC classification number: G01N11/16 ,  G01N2011/0026

Abstract: A method and a device for measuring the viscosity of non-Newtonian liquids, in particular engine operating materials, a first and a second viscosity measurement being carried out using a viscosity sensor device, and a differing excitation of the non-Newtonian liquid taking place for the first and second viscosity measurement.

Abstract translation: 一种用于测量非牛顿液体，特别是发动机操作材料的粘度的方法和装置，使用粘度传感器装置进行第一和第二粘度测量，以及发生非牛顿液体的不同激发 第一和第二粘度测量。

公开(公告)号：US20080236255A1

公开(公告)日：2008-10-02

申请号：US11632843

申请日：2005-07-21

Applicant: Philippe Martinoty ,  Dominique Collin

Inventor： Philippe Martinoty ,  Dominique Collin

IPC: G01N11/00

CPC classification number: G01N11/16

Abstract: The invention relates to a piezo-rheometric measuring cell for shear or compression measurement, essentially comprising two sample holder plates, with the sample for analysis between the same in solid, liquid or intermediate form, piezoelectric ceramic elements on the faces of the plates opposite to the faces in contact with the sample and a construction forming the housing and compressing the arrangement of plates and ceramic elements, one or more ceramics called emitter, being connected to one of the two plates or the emitter plate and subjecting the same to shear or compression vibrations by means of an excitation signal and one or more ceramics, called receiver, being connected to the other plate or receiver plate and converting the forces to which the same is subject into a measured signal. The cell is characterised in that the emitter and receiver cell(s) are arranged such that the respective polarisations of the emitter ceramic (4) and the receiver ceramic (4′), or the respective resultant polarisations of the emitter ceramics (4) and the receiver ceramics (4′) are parallel and in the same direction. Said cell (1) is preferably portable and permits measurements with variation in temperature and/or pressure.

Abstract translation: 本发明涉及一种用于剪切或压缩测量的压电流变测量单元，基本上包括两个样品保持板，样品用于在固体，液体或中间形式之间进行分析，压电陶瓷元件位于与 与样品接触的表面和形成壳体的结构并且压缩板和陶瓷元件的布置，称为发射器的一种或多种陶瓷被连接到两个板或发射极板中的一个，并对其进行剪切或压缩 借助于激发信号的振动和被称为接收器的一个或多个陶瓷被连接到另一个板或接收器板，并将相同的力转化成测量信号。 电池的特征在于发射极和接收器单元被布置成使得发射极陶瓷（4）和接收器陶瓷（4'）的相应极化或发射极陶瓷（4）和 接收器陶瓷（4'）在相同的方向上是平行的。 所述电池（1）优选是便携式的，并允许在温度和/或压力变化下进行测量。

公开(公告)号：US20070272209A1

公开(公告)日：2007-11-29

申请号：US11837415

申请日：2007-08-10

Applicant: Leonid Matsiev ,  James Bennett ,  Daniel Pinkas ,  Mikhail Spitkovsky ,  Oleg Kolosov ,  Shenheng Guan ,  Mark Uhrich ,  G. Dales ,  John Varni ,  Blake Walker ,  Vladimir Gammer ,  Dave Padowitz ,  Eric Low

Inventor： Leonid Matsiev ,  James Bennett ,  Daniel Pinkas ,  Mikhail Spitkovsky ,  Oleg Kolosov ,  Shenheng Guan ,  Mark Uhrich ,  G. Dales ,  John Varni ,  Blake Walker ,  Vladimir Gammer ,  Dave Padowitz ,  Eric Low

IPC: F02D45/00 ,  G01N29/02

CPC classification number: F02D41/021 ,  F02D2200/0611 ,  F02D2250/11 ,  G01F23/2966 ,  G01N9/002 ,  G01N11/16 ,  G01N29/022 ,  G01N29/036 ,  G01N29/30 ,  G01N29/348 ,  G01N2291/014 ,  G01N2291/0226 ,  G01N2291/02416 ,  G01N2291/02818 ,  G01N2291/02836 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427

Abstract: A sensor for sensing one or more properties of a vehicle fluid has a tuning fork resonator adapted to contact the fluid. The tuning fork resonator comprises two tines and is operable to oscillate so that the two tines move in opposite phase at a frequency of less than 1 MHz while contacting the fluid to generate a resonator response indicative of one or more properties of the fluid. In another aspect, a sensor includes a substrate and a flexural resonator on the substrate and adapted to contact the fluid. Circuitry for operation of the resonator is on the substrate. The resonator is adapted to receive an input signal and to oscillate while contacting the fluid to generate a resonator response indicative of one or more properties of the fluid. One suitable application for the invention is monitoring the condition of a vehicle engine oil.

Abstract translation: 用于感测车辆流体的一个或多个特性的传感器具有适于接触流体的音叉谐振器。 音叉谐振器包括两个齿并且可操作以振荡，使得两个齿在小于1MHz的频率下以相反相位移动，同时接触流体以产生指示流体的一个或多个特性的谐振器响应。 在另一方面，传感器包括衬底和在衬底上的弯曲谐振器并且适于接触流体。 用于谐振器操作的电路在基板上。 谐振器适于接收输入信号并且在接触流体时振荡以产生指示流体的一个或多个特性的谐振器响应。 本发明的一个合适的应用是监测车辆发动机油的状态。

公开(公告)号：US07287415B2

公开(公告)日：2007-10-30

申请号：US10956229

申请日：2004-09-30

Applicant: Robert L. Borwick, III ,  Philip A. Stupar ,  Jeffrey F. DeNatale

Inventor： Robert L. Borwick, III ,  Philip A. Stupar ,  Jeffrey F. DeNatale

IPC: G01N11/00

CPC classification number: G01N33/30 ,  G01N11/16

Abstract: Embodiments of the present invention are directed to a MEM viscosity sensor that is configured to be operated submerged in a liquid. The MEMS viscosity sensor comprises a MEMS variable capacitor comprising a plurality of capacitor plates capable of being submerged in a liquid. An actuator places a driving force on the variable capacitor which causes relative movement between the plates, where the movement creates a shear force between each moving plate and the liquid, which damps the movement of the plate and increases the capacitor's response time to the applied force in accordance with the liquid's viscosity. To determine the actual viscosity of the liquid, a sensor is coupled to the variable capacitor for sensing the response time of the plates as an indicator of the liquid's viscosity.

Abstract translation: 本发明的实施例涉及一种MEM粘度传感器，其被配置为操作浸没在液体中。 MEMS粘度传感器包括MEMS可变电容器，其包括能够浸没在液体中的多个电容器板。 致动器在可变电容器上施加驱动力，其引起板之间的相对运动，其中运动在每个移动板和液体之间产生剪切力，其阻止板的移动并增加电容器对所施加的力的响应时间 根据液体的粘度。 为了确定液体的实际粘度，传感器耦合到可变电容器，用于感测板的响应时间作为液体粘度的指示。

公开(公告)号：US07284413B2

公开(公告)日：2007-10-23

申请号：US09865338

申请日：2001-05-28

Applicant: Rudolf Ehwald ,  Karl-Ernst Ehwald ,  Dieter Knoll ,  Wolfgang Winkler ,  Henning Zinke

Inventor： Rudolf Ehwald ,  Karl-Ernst Ehwald ,  Dieter Knoll ,  Wolfgang Winkler ,  Henning Zinke

IPC: G01N11/10

CPC classification number: G01N11/16 ,  A61B5/14532 ,  G01N13/02 ,  G01N2011/008 ,  G01N2203/0094

Abstract: An apparatus for measuring the viscosity of a fluid having a first rigid member extending from a body of semiconductor material and provided with a first conductive path and a second resiliently flexible member provided with a second conductive path and arranged in cantilever fashion over the rigid member. At least one of the conductive paths may be selectively energized to brig about relative movement between the rigid and flexible member. Subsequent deenergization of the path causes the resiliently flexible member to return to its initial position, the rate of return being measured to derive a signal representative of the viscosity. Also described are methods of carrying out the measurement and of fabricating the apparatus.

Abstract translation: 一种用于测量具有从半导体材料体延伸并具有第一导电路径的第一刚性构件和设置有第二导电路径并且以悬臂方式布置在刚性构件上的第二弹性柔性构件的流体的粘度的装置。 关于刚性和柔性构件之间的相对运动，至少一个导电路径可以被选择性地通电。 路径的随后的断电导致弹性柔性构件返回到其初始位置，测量返回率以导出代表粘度的信号。 还描述了进行测量和制造该装置的方法。