公开(公告)号：US20070113669A1

公开(公告)日：2007-05-24

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：US20060230834A1

公开(公告)日：2006-10-19

申请号：US11107102

申请日：2005-04-14

Applicant: James Liu ,  Michael Rhodes ,  Aziz Rahman

Inventor： James Liu ,  Michael Rhodes ,  Aziz Rahman

IPC: G01N29/00

CPC classification number: G01L9/0025 ,  G01L1/165 ,  G01N29/022 ,  G01N2291/0256 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427

Abstract: A multiple-mode acoustic wave sensor apparatus includes an acoustic wave device comprising a piezoelectric substrate and at least one electrode on the substrate. When such sensor is used in a wireless configuration, a plurality of antennas can be configured on the substrate in association with the acoustic wave device, wherein each antenna among the plurality of antennas is responsive to varying interrogation signals transmitted wirelessly to the plurality of antennas in order to excite multiple frequency modes via at least one interdigital transducer on the substrate and thereby passively detect multiple and varying parameters of a sensed material utilizing the acoustic wave device.

Abstract translation: 多模式声波传感器装置包括声波装置，该声波装置包括压电基片和基片上的至少一个电极。 当这种传感器用于无线配置时，可以在声波装置的基板上配置多个天线，其中多个天线中的每个天线响应于以多个天线无线方式发射的多个询问信号 通过基板上的至少一个叉指式换能器来激发多个频率模式，从而利用声波装置被动地检测感测材料的多个和变化的参数。

公开(公告)号：US20060130585A1

公开(公告)日：2006-06-22

申请号：US11017171

申请日：2004-12-18

Applicant: Steven Magee ,  James Cook ,  James Liu

Inventor： Steven Magee ,  James Cook ,  James Liu

IPC: G01N9/24

CPC classification number: G01L1/165 ,  G01L3/10 ,  G01L9/0025

Abstract: Sensor systems and methods are disclosed herein, including a sensor chip, upon which at least two surface acoustic wave (SAW) sensing elements are centrally located on a first side (e.g., front side) of the sensor chip. The SAW sensing elements occupy a common area on the first side of the sensor chip. An etched diaphragm is located centrally on the second side (i.e., back side) of the sensor chip opposite the first side in association with the two SAW sensing elements in order to concentrate the mechanical strain of the sensor system or sensor device in the etched diagram, thereby providing high strength, high sensitivity and ease of manufacturing thereof.

Abstract translation: 传感器系统和方法在本文中公开，包括传感器芯片，至少两个表面声波（SAW）感测元件位于传感器芯片的第一侧（例如，前侧）的中心。 SAW感测元件占据传感器芯片第一侧上的公共区域。 与两个SAW传感元件相关联，蚀刻的隔膜位于与第一侧相对的传感器芯片的第二侧（即后侧）的中央，以将传感器系统或传感器设备的机械应变集中在蚀刻图中 从而提供高强度，高灵敏度和易于制造。

公开(公告)号：US20060032314A1

公开(公告)日：2006-02-16

申请号：US11226023

申请日：2005-09-14

Applicant: William Hnat ,  John Naber ,  Kevin Walsh

Inventor： William Hnat ,  John Naber ,  Kevin Walsh

IPC: G01N3/00

CPC classification number: G01D21/00 ,  A61B5/0031 ,  A61B5/076 ,  A61B5/4504 ,  A61B2090/064 ,  A61B2560/0219 ,  A61B2562/0247 ,  A61B2562/028 ,  A61B2562/043 ,  G01D9/005 ,  G01L1/142 ,  G01L1/165 ,  G01L1/22 ,  G01L1/225 ,  G01L19/086

Abstract: The present invention provides a system 10 for measuring and remotely monitoring strain in an element 1 having a strain sensor 20, a telemetry circuit 40 for transmitting strain data to a remote location, and a reader module 60 for transmitting energy to the telemetry circuit and receiving said data.

Abstract translation: 本发明提供了一种用于测量和远程监测具有应变传感器20的元件1中的应变的系统10，用于将应变数据传输到远程位置的遥测电路40以及用于向遥测电路发送能量的读取器模块60 说数据。

公开(公告)号：US20020104382A1

公开(公告)日：2002-08-08

申请号：US09971747

申请日：2001-10-05

Inventor： Edwin Liebemann ,  Dietmar Arndt

IPC: G01N029/04

CPC classification number: G01L1/165 ,  G01L1/255 ,  G01N2291/02827

Abstract: A force sensor having a substrate, on which a first path and a second path for acoustic surface waves are arranged. The two paths are arranged essentially parallel to one another and their lengths are different.

Abstract translation: 具有基板的力传感器，其上布置有用于声表面波的第一路径和第二路径。 两个路径基本上彼此平行地布置，并且它们的长度是不同的。

公开(公告)号：US5391844A

公开(公告)日：1995-02-21

申请号：US64834

申请日：1993-05-19

Applicant: Thomas H. Johnson ,  Michael R. Wyatt

Inventor： Thomas H. Johnson ,  Michael R. Wyatt

IPC: G01G3/14 ,  G01G19/42 ,  G01G21/24 ,  G01L1/14 ,  G01L1/16 ,  G01L1/22 ,  G01L9/00 ,  G01P15/097 ,  G01P15/10 ,  G01G3/08 ,  G01L1/10

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 a load cell for the measurement of force, independent of displacement, created by means such as weight, acceleration, pressure, and the like. The load cell 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. In operation, deflection of one beam creates a response in the sensing means due to the relative action or deflection in the second beam.

Abstract translation: 本发明是用于测量力的测力传感器，其独立于通过重量，加速度，压力等方式产生的位移。 称重传感器具有在至少一个平面中彼此平行布置的梁的梁结构。 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之间的感测装置。 在操作中，一个光束的偏转由于第二光束中的相对作用或偏转而在感测装置中产生响应。

公开(公告)号：US4566329A

公开(公告)日：1986-01-28

申请号：US692546

申请日：1985-01-18

Applicant: Jean P. Castera ,  Paul L. Meunier

Inventor： Jean P. Castera ,  Paul L. Meunier

IPC: G01L1/00 ,  G01L1/10 ,  G01L1/16 ,  G01L5/16 ,  G01P15/097 ,  G01P15/08 ,  G01N29/00

CPC classification number: G01L5/16 ,  G01L1/165 ,  G01P15/0975

Abstract: The vectorial force sensor with elastic surface waves according to the invention comprises a mechanical part, for example a lamella, subjected to a stress (.sigma.). One face of the lamella incorporates transducers maintaining an elastic surface wave. The system according to the invention possesses three magnetic means inducing in the lamella three orthogonal magnetic fields, one of which is parallel to the direction of polarization of the elastic surface wave. Means are provided to make it possible to measure the influence of each magnetic field on the speed of propagation of the elastic surface wave. Such a system can be used particularly in accelerometers.

Abstract translation: 根据本发明的具有弹性表面波的矢量力传感器包括经受应力（σ）的机械部件，例如薄片。 薄片的一面包含保持弹性表面波的换能器。 根据本发明的系统具有在薄片三个正交磁场中诱导的三个磁性装置，其中一个平行于弹性表面波的极化方向。 提供了使得可以测量每个磁场对弹性表面波的传播速度的影响的装置。 这种系统可以特别用在加速度计中。

公开(公告)号：US4096740A

公开(公告)日：1978-06-27

申请号：US479961

申请日：1974-06-17

Applicant: Gary F. Sallee

Inventor： Gary F. Sallee

IPC: G01L1/16 ,  G01B7/16 ,  G01N29/00

CPC classification number: G01L1/165 ,  Y10S73/04

Abstract: A strain detector comprises an oscillator having a surface acoustic wave delay line as its frequency control element. The delay line is constructed on a substrate, such as quartz which is disposed to distort in response to the strain to be measured. Distortion of the substrate alters the frequency control characteristics of the surface acoustic wave delay line with a consequent change in oscillator frequency. The change in frequency is proportional to the distortion of the substrate. A strain gage employs the detector output frequency as the input signal to a frequency measuring system.

Abstract translation: 应变检测器包括具有表面声波延迟线作为其频率控制元件的振荡器。 延迟线构造在诸如石英的衬底上，该衬底被设置成响应于待测量的应变而变形。 衬底的失真会改变声表面波延迟线的频率控制特性，从而改变振荡器频率。 频率的变化与衬底的变形成正比。 应变计采用检测器输出频率作为频率测量系统的输入信号。

公开(公告)号：US12025516B2

公开(公告)日：2024-07-02

申请号：US17761416

申请日：2020-09-22

Applicant: SenSanna Incorporated

Inventor： Justin Bond ,  Dana Y. G. Tucker ,  Jacqueline H. Hines

IPC: G01L1/26 ,  G01L1/16

CPC classification number: G01L1/26 ,  G01L1/165

Abstract: The present disclosure provides a new and improved temperature compensated surface-launched acoustic wave (SAW) strain sensor using multiple reflectors in SAW devices mounted on a split-carrier package that provides complete isolation from strain for a temperature sensing portion of the device, while exposing a strain sensing portion of the device to both strain and temperature, with the influence of temperature being common to the various portions of the device, and a single acoustic reference with respect to which multiple differential acoustic measurements can be made, to provide inherently temperature-compensated strain measurements.

公开(公告)号：US11828668B2

公开(公告)日：2023-11-28

申请号：US17753510

申请日：2020-09-04

Applicant: FREC'N'SYS

Inventor： Sylvain Ballandras ,  Emilie Courjon ,  Florent Bernard ,  Thierry LaRoche ,  Julien Garcia

IPC: G01L9/00 ,  G01L1/16

CPC classification number: G01L9/0025 ,  G01L1/165 ,  G01L9/008

Abstract: An acoustic wave pressure sensor device configured to measure a pressure, comprising a substrate configured to bend when pressure is applied to the substrate such that an area of a first kind of strain and an area of a second kind of strain are formed in the substrate; an interdigitated transducer formed over the substrate; a first Bragg mirror formed over the substrate and arranged on one side of the interdigitated transducer; a second Bragg mirror formed over the substrate and arranged on another side of the interdigitated transducer; a first resonance cavity formed between the interdigitated transducer and the first Bragg mirror; a second resonance cavity formed between the interdigitated transducer and the second Bragg mirror; and wherein the first resonance cavity is formed over the area of the first kind of strain and the second resonance cavity is formed over the area of the second kind of strain.