公开(公告)号：US20100332157A1

公开(公告)日：2010-12-30

申请号：US12918666

申请日：2009-02-19

Applicant: Jean-Michel Friedt

Inventor： Jean-Michel Friedt

IPC: G06F19/00 ,  G01L7/00

CPC classification number: G01L1/165 ,  B60C23/0449 ,  G01L9/0025 ,  G01L19/086

Abstract: A method for interrogating a passive sensor comprising at least one piezoelectric resonator includes the following steps: the identification of the characteristic width of the resonant frequency band of the resonator; the determination of a scan interval equal to a third of the measured bandwidth; a first series of three interrogation measurements with signals respectively at a first frequency, at a second frequency and at a third frequency making it possible to define a first resonance value, a second resonance value and a third resonance value; the determination by a parabolic fitting operation of the resonator response curve on the basis of said first, second and third resonance values, so as to calculate a first value of the frequency in real time of the resonator. The invention also relates to an electronic device for interrogating a passive sensor comprising at least one piezoelectric resonator and comprising a micro-controller implementing the interrogation method of the invention.

Abstract translation: 一种用于询问包括至少一个压电谐振器的无源传感器的方法包括以下步骤：识别谐振器的谐振频带的特征宽度; 确定扫描间隔等于测量带宽的三分之一; 第一系列三个询问测量，分别以第一频率，第二频率和第三频率处于信号，使得可以定义第一谐振值，第二谐振值和第三谐振值; 基于所述第一，第二和第三谐振值，通过谐振器响应曲线的抛物线拟合操作来确定，以便计算谐振器的实时频率的第一值。 本发明还涉及用于询问无源传感器的电子设备，该无源传感器包括至少一个压电谐振器，并且包括实现本发明的询问方法的微控制器。

公开(公告)号：US20100319184A1

公开(公告)日：2010-12-23

申请号：US12820014

申请日：2010-06-21

Applicant: Jean-François Leguen ,  Luc Chommeloux

Inventor： Jean-François Leguen ,  Luc Chommeloux

IPC: H04R31/00 ,  G01R3/00

CPC classification number: G01K11/265 ,  G01L1/165 ,  G01L9/0025 ,  Y10T29/42 ,  Y10T29/49002 ,  Y10T29/49004 ,  Y10T29/49005 ,  Y10T29/49007 ,  Y10T29/4908

Abstract: A method of collective fabrication of remotely interrogatable sensors, each sensor comprising at least one first resonator and one second resonator, each resonator comprising acoustic wave transducers designed such that they exhibit respectively a first and a second operating frequency, is provided. The method comprises the fabrication of a first series of first resonators (RT1i) exhibiting a first resonant frequency at ambient temperature (f1i) and a first static capacitance (C1i); the fabrication of a second series of second resonators (RT2j) exhibiting a second resonant frequency at ambient temperature (f2j) and a second static capacitance (C2j); a series of electrical measurements of the set of the first series of first resonators and of the set of the second series of second resonators, so as to determine first pairs (f1i, C1i) and second pairs (f2j, C2j) of resonant frequency and of capacitance of each of the first and second resonators; and a series of matchings of a first resonator (RT1i) and of a second resonator (RT2j) according to the aggregate of the following two criteria: the dispersion in the difference in resonant frequency (f1i−f2j) is less than a first threshold value (Sf) and the dispersion in the difference in static capacitance (C1i−C2j) is less than a second threshold value (Sc).

Abstract translation: 提供了一种集成制造远程可询问传感器的方法，每个传感器包括至少一个第一谐振器和一个第二谐振器，每个谐振器包括设计成分别表现第一和第二操作频率的声波换能器。 该方法包括制造在环境温度（f1i）和第一静态电容（C1i）处呈现第一谐振频率的第一系列第一谐振器（RT1i）; 制造在环境温度（f2j）和第二静电容（C2j）处呈现第二共振频率的第二系列第二谐振器（RT2j）; 第一系列第一谐振器和第二系列第二谐振器组的一组电测量，以便确定谐振频率的第一对（f1i，C1i）和第二对（f2j，C2j），以及 的第一和第二谐振器中的每一个的电容; 以及根据以下两个标准的总和的一系列第一谐振器（RT1i）和第二谐振器（RT2j）的匹配：谐振频率差（f1i-f2j）中的色散小于第一阈值 （Sf），静态电容差（C1i-C2j）的偏差小于第二阈值（Sc）。

公开(公告)号：US07520179B2

公开(公告)日：2009-04-21

申请号：US10585102

申请日：2004-12-30

Applicant: Michael Bernstein ,  Arie Ariav ,  Vladimir Ravitch

Inventor： Michael Bernstein ,  Arie Ariav ,  Vladimir Ravitch

IPC: G01N29/04

CPC classification number: G01L3/1428 ,  G01L1/165

Abstract: A method and apparatus for measuring the force applied by a first member coupled to a second member by a connecting body, by: transmitting a cyclically-repeating energy wave through the connecting body from a first location thereon to a second location thereon; measuring the transit time of the cyclically-repeating energy wave from the first location to the second location; and utilizing the measured transit time to produce a measurement of the force. In the preferred described embodiment, the connecting body is a fastening plate which fastens a drive shaft to a driven shaft and measures the torque output of the drive shaft.

Abstract translation: 一种用于测量由连接体联接到第二构件的第一构件施加的力的方法和装置，其通过：将循环重复的能量波从所述连接体从其第一位置传递到其上的第二位置; 测量循环重复的能量波从第一位置到第二位置的传播时间; 并利用测得的渡越时间产生力的测量。 在优选的描述的实施例中，连接体是将驱动轴固定到从动轴并测量驱动轴的扭矩输出的紧固板。

公开(公告)号：US20060197407A1

公开(公告)日：2006-09-07

申请号：US10547913

申请日：2004-03-05

Applicant: David Vile ,  Graham Freakes ,  Raymond Lohr ,  Mark Lee ,  Arthur Leigh

Inventor： David Vile ,  Graham Freakes ,  Raymond Lohr ,  Mark Lee ,  Arthur Leigh

IPC: H04R17/00 ,  H01L41/00

CPC classification number: G01L1/165 ,  G01L9/0025 ,  Y10T29/42 ,  Y10T29/49155

Abstract: A silicon or quartz wafer for forming a SAW device is the subject of grinding and lapping operation to form its basic shape. The opposing surfaces, as well as the edges extending therebetween, are the polished to reduce the number and size of defects in the surfaces. Metal is deposited onto one of the opposing surfaces which, in use, will be under compression, to form electronic components thereon, and a multi-metallic coating having an outer layer formed of gold is applied to the other surface to form a solder pad by means of which the wafer may be fastened to a shaft or the like by soldering. Martensitic stainless steel is used as a mount, saddle or housing for the SAW substrate.

Abstract translation: 用于形成SAW器件的硅或石英晶片是磨削和研磨操作的主体以形成其基本形状。 相对的表面以及在它们之间延伸的边缘被抛光以减少表面中缺陷的数量和尺寸。 将金属沉积在使用中将被压缩的一个相对表面上，以在其上形成电子部件，并且将具有由金形成的外层的多金属涂层施加到另一表面以通过以下方式形成焊盘： 通过焊接将晶片固定在轴等上的装置。 马氏体不锈钢用作SAW基板的安装座，鞍座或外壳。

公开(公告)号：US07017421B2

公开(公告)日：2006-03-28

申请号：US10406560

申请日：2003-04-04

Applicant: Michael Kehlenbach

Inventor： Michael Kehlenbach

IPC: G01L1/24

CPC classification number: G01M11/086 ,  G01L1/165 ,  G01L1/246

Abstract: An actuator and sensor system (1) for composite structures, especially carbon-fiber reinforced plastic structures (10) with piezo-ceramic actuators, particularly for active vibration dampening and/or shape control purposes, as well as fiber Bragg grating sensors (30), particularly in the form of strain measurement sensors. The piezo-ceramic actuators are designed as piezo fiber modules (20a, 20b) and the fiber Bragg grating sensors (30) are at least partially embedded in the piezo fiber modules (20a, 20b).

Abstract translation: 用于复合结构的致动器和传感器系统（1），特别是具有压电陶瓷致动器的碳纤维增强塑料结构（10），特别是用于主动减振和/或形状控制目的，以及光纤布拉格光栅传感器（30） 特别是应变测量传感器的形式。 压电陶瓷致动器被设计为压电光纤模块（20a，20b），并且光纤布拉格光栅传感器（30）至少部分地嵌入在压电光纤模块（20a，20b）中。

公开(公告)号：US20030219191A1

公开(公告)日：2003-11-27

申请号：US10406560

申请日：2003-04-04

Inventor： Michael Kehlenbach

IPC: G02B006/00

CPC classification number: G01M11/086 ,  G01L1/165 ,  G01L1/246

Abstract: An actuator and sensor system (1) for composite structures, especially carbon-fiber reinforced plastic structures (10) with piezo-ceramic actuators, particularly for active vibration dampening and/or shape control purposes, as well as fiber Bragg grating sensors (30), particularly in the form of strain measurement sensors. The piezo-ceramic actuators are designed as piezo fiber modules (20a, 20b) and the fiber Bragg grating sensors (30) are at least partially embedded in the piezo fiber modules (20a, 20b).

Abstract translation: 用于复合结构的致动器和传感器系统（1），特别是具有压电陶瓷致动器的碳纤维增强塑料结构（10），特别是用于主动减振和/或形状控制目的，以及光纤布拉格光栅传感器（30） 特别是应变测量传感器的形式。 压电陶瓷致动器被设计为压电光纤模块（20a，20b），并且光纤布拉格光栅传感器（30）至少部分地嵌入在压电光纤模块（20a，20b）中。

公开(公告)号：US5585571A

公开(公告)日：1996-12-17

申请号：US923960

申请日：1992-10-15

Applicant: Anthony Lonsdale ,  Bryan Lonsdale

Inventor： Anthony Lonsdale ,  Bryan Lonsdale

IPC: G01L1/00 ,  G01L1/16 ,  G01L3/10 ,  G01L3/02

CPC classification number: G01L1/165 ,  B60C23/0428 ,  G01L3/10 ,  Y10S73/04

Abstract: A method of, and apparatus for, measuring dynamic torque transmitted by a shaft having an axis of rotation is characterised by the steps of:1 locating on the shaft (S) a pair of transducers (T, T1, T2), each comprising an SAW resonator, as a complementary pair so that for a first direction of rotation (K) of the shaft (S) about the axis (A) one transducer (T1) is under compression and the other (T2) in tension and for a reverse direction of rotation of the shaft the one transducer (T1) is in tension and the other (T2) in compression, a signal input (C1) and a signal output (C2, C3) for either each transducer or a single signal output for a signal derived from both transducers, the signal input and signal output or outputs being located at discrete locations on or near the outside of the shaft (S) for rotation therewith,2 causing a driving signal to be applied to the signal input (C1);3 detecting at each or the signal outlet (C2, C3) at least an output resonant frequency of the transducer (T, T1, T2) when driven by the driving signal; and4 processing the output resonant frequency signal of each or both transducers to derive information as to the strain generated in the transducer (T1, T2) induced by stress in the shaft (S) due to dynamic torque transmitted by the shaft (S).The invention further provides for various output signals to be provided relating to dynamic torque with or without temperature compensation and/or representation.

Abstract translation: PCT No.PCT / GB91 / 00328 Sec。 371日期：1992年10月15日 102（e）日期1992年10月15日PCT 1991年3月4日PCT公布。 WO91 / 13832 PCT出版物 1991年9月19日，一种用于测量由具有旋转轴线的轴传递的动态扭矩的方法和装置的特征在于：1定位在轴（S）上的一对换能器（T，T1，T2 ），每个包括SAW谐振器作为互补对，使得对于绕轴（A）的轴（S）的第一旋转方向（K），一个换能器（T1）处于压缩状态，另一个（T2）在 张力，并且对于轴的旋转方向，一个换能器（T1）处于张紧状态，另一个（T2）压缩，信号输入（C1）和信号输出（C2，C3），用于每个换​​能器或 单个信号输出用于从两个换能器导出的信号，信号输入和信号输出或输出位于轴（S）外部或附近的离散位置，用于与其一起旋转，从而使驱动信号施加到信号 输入（C1）; 3在由驱动信号驱动时，在每个或信号出口（C2，C3）处至少检测换能器（T，T1，T2）的输出谐振频率; 以及4处理每个或两个换能器的输出谐振频率信号以导出由于由轴（S）传递的动态转矩引起的由轴（S）中的应力引起的在换能器（T1，T2）中产生的应变的信息。 本发明进一步提供有关具有或不具有温度补偿和/或表示的动态转矩的各种输出信号。

公开(公告)号：US5442146A

公开(公告)日：1995-08-15

申请号：US64551

申请日：1993-05-19

Applicant: David Bell ,  Robert G. Allard ,  Ronald A. Rodgers ,  Victor E. Hipkiss ,  Thomas H. Johnson

Inventor： David Bell ,  Robert G. Allard ,  Ronald A. Rodgers ,  Victor E. Hipkiss ,  Thomas H. Johnson

IPC: G01G3/14 ,  G01G19/42 ,  G01G21/24 ,  G01L1/14 ,  G01L1/16 ,  G01L1/22 ,  G01L9/00 ,  G01P15/097 ,  G01P15/10

CPC classification number: G01G3/1412 ,  G01G19/42 ,  G01G21/24 ,  G01L1/14 ,  G01L1/162 ,  G01L1/165 ,  G01L1/2206 ,  G01L1/2243 ,  G01L9/0005 ,  G01L9/0022 ,  G01P15/097

Abstract: The invention is directed to a counting scale which implements a load cell assembly for the measurement of weight used in counting calculations. A load cell in such an assembly has a beam structure with beams positioned parallel to each other in at least one plane. Generally, these parallel beams are attached to a stationary base and have sensing means attached between the two beams and the base. These sensing means are preferably resonators which have resonant frequencies that vary in response to an applied force on the load cell. A controller is included in the assembly to drive these resonators, convert their frequency outputs to digital values, and correct for various environmental effects, to obtain an accurate weight measurement for use in the counting scale.

Abstract translation: 本发明涉及一种计数秤，其实现用于计量计算中使用的重量测量的称重传感器组件。 这种组件中的称重传感器具有梁结构，其梁在至少一个平面中彼此平行。 通常，这些平行光束被附接到固定的基座上并且具有连接在两个光束和基底之间的感测装置。 这些感测装置优选地是谐振器，其谐振频率响应于测力传感器上施加的力而变化。 组件中包括一个控制器来驱动这些谐振器，将其频率输出转换为数字值，并对各种环境影响进行校正，以获得用于计数刻度的精确重量测量。

公开(公告)号：US4467235A

公开(公告)日：1984-08-21

申请号：US357398

申请日：1982-03-12

Applicant: Roger E. De Wames ,  Edward J. Staples

Inventor： Roger E. De Wames ,  Edward J. Staples

IPC: G01H13/00 ,  G01L1/16 ,  G01P15/097 ,  H03H9/02 ,  H03H9/64 ,  H03H9/76

CPC classification number: G01P15/0975 ,  G01H13/00 ,  G01L1/165

Abstract: Disclosed is a surface acoustic wave interferometer, including a substrate on which are disposed a first reflector and a second reflector so as to define a multimode resonant cavity therebetween. A third reflector is positioned on the substrate so that a single mode resonant cavity is defined between the second and third reflectors. An input transducer generates surface acoustic waves in the single mode cavity, while an output transducer detects the interference between surface acoustic waves in the multimode and single mode cavities. A base is rigidly affixed to the substrate in the region of the single mode cavity so that a force applied to the substrate will alter the surface acoustic wave propagation characteristics within the multimode cavity.

Abstract translation: 公开了一种表面声波干涉仪，其包括基板，第一反射器和第二反射器在其上设置以在其间限定多模谐振腔。 第三反射器位于基板上，使得在第二和第三反射器之间限定单模谐振腔。 输入传感器在单模腔中产生表面声波，而输出换能器检测多模和单模腔中表面声波之间的干涉。 基座在单模腔的区域中刚性地固定到基板上，使得施加到基板的力将改变多模腔内的表面声波传播特性。

公开(公告)号：US3863497A

公开(公告)日：1975-02-04

申请号：US30003472

申请日：1972-10-24

Applicant: SPERRY RAND CORP

Inventor： VAN DE VAART HERMAN ,  MATTHEWS HUGH B ,  WORLEY JAMES C

IPC: G01P15/08 ,  G01B17/00 ,  G01L1/16 ,  G01P15/097 ,  G01H1/00 ,  G01P15/00

CPC classification number: G01P15/0975 ,  G01L1/165

Abstract: Transducer device employing relative changes in the acoustic propagation characteristics of waves of the Rayleigh type flowing at a polished surface of a thin elastic member yield a measure of the degree of flexing of the elastic member, which latter may take the form, for instance, of a cantilever clamped at one end. Applications such as to strain or displacement gages and to accelerometers are provided.

Abstract translation: 使用在薄弹性构件的抛光表面上流动的瑞利型波的声传播特性的相对变化的传感器装置产生弹性构件的屈曲度的量度，弹性构件的屈服度可以采取例如 悬臂在一端夹紧。 提供了诸如应变或位移计和加速度计之类的应用。