公开(公告)号：US20070214892A1

公开(公告)日：2007-09-20

申请号：US11724025

申请日：2007-03-14

Applicant: Joseph Turner ,  Shane Farritor

Inventor： Joseph Turner ,  Shane Farritor

IPC: G01N29/04 ,  G01L5/00

CPC classification number: G01L1/255 ,  B61K9/08 ,  G01N29/04 ,  G01N29/12 ,  G01N29/2418 ,  G01N29/4445 ,  G01N2291/02881 ,  G01N2291/102 ,  G01N2291/105 ,  G01N2291/2623

Abstract: The present invention is directed to a system and methods with which changes in rail conditions can be determined and monitored over time. The present invention includes a database of data, wherein a first set of data is used for comparison with a second set of data to determine the stress state of rail.

Abstract translation: 本发明涉及一种可以随时间确定和监测轨道状况变化的系统和方法。 本发明包括数据库，其中第一组数据用于与第二组数据进行比较以确定轨道的应力状态。

公开(公告)号：US06619135B2

公开(公告)日：2003-09-16

申请号：US09971747

申请日：2001-10-05

Applicant: Edwin Liebemann ,  Dietmar Arndt

Inventor： Edwin Liebemann ,  Dietmar Arndt

IPC: G01N2904

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

Abstract: A force sensor having a substrate for measuring forces is provided, on which substrate a first path and a second path for travel of acoustic surface waves are arranged. The two paths are arranged essentially parallel to one another and their lengths are different. An effect of a force on the substrate is detectable by measuring a time needed for an acoustic surface wave to travel at least one of the first and second paths.

Abstract translation: 提供了具有用于测量力的基板的力传感器，在该基板上布置有用于传播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。 通过测量声表面波行进第一和第二路径中的至少一个所需的时间来检测力对衬底的影响。

公开(公告)号：US06553839B2

公开(公告)日：2003-04-29

申请号：US10064188

申请日：2002-06-20

Applicant: David B. Board

Inventor： David B. Board

IPC: G01N2900

CPC classification number: G01N29/42 ,  G01H1/003 ,  G01L1/255 ,  G01N29/045 ,  G01N29/12 ,  G01N29/227 ,  G01N29/36 ,  G01N2291/014 ,  G01N2291/015 ,  G01N2291/02827 ,  G01N2291/269

Abstract: A method for stimulating a sensor and measuring it's output over a frequency ranges starting at a frequency f1 and ending at a frequency f2 is disclosed, which can include the following steps: (a) placing an assembled sensor on a shaker table; (b) setting the shaker table at a specified frequency and exciting the sensor by moving the sensor up and down at an amplitude at least approximately equal to a reference “g” level of acceleration; (c) measuring the sensor's output and recording the measured output as a first value; (d) incrementally changing an excitation frequency of the shaker table and adjusting the amplitude to achieve the reference “g” level; (e) measuring the sensor's output and recording the measured output as a second value; and (f) repeating steps (d) and (e) for one or more discrete frequencies within the frequency range to provide a frequency response curve for the sensor over the frequency range.

Abstract translation: 公开了一种用于刺激传感器并在从频率f1开始并以频率f2开始的频率范围测量其输出的方法，其可以包括以下步骤：（a）将组装的传感器放置在振动台上; （b）将振动台设置在指定频率，并通过以至少近似等于参考“g”加速度的振幅上下移动传感器来激励传感器; （c）测量传感器的输出并将测量的输出记录为第一值; （d）递增地改变振动台的激励频率并调节振幅以达到参考“g”电平; （e）测量传感器的输出并将测量的输出记录为第二值; 和（f）对频率范围内的一个或多个离散频率重复步骤（d）和（e），以在频率范围内为传感器提供频率响应曲线。

公开(公告)号：US5814734A

公开(公告)日：1998-09-29

申请号：US884782

申请日：1997-06-30

Applicant: Dick J. Chang ,  James P. Nokes ,  Francis Hai

Inventor： Dick J. Chang ,  James P. Nokes ,  Francis Hai

IPC: G01L1/25 ,  G01L5/24 ,  G01L11/04 ,  G01N3/08

CPC classification number: G01L11/04 ,  G01L1/255 ,  G01L5/246

Abstract: A thin film stress sensor measures the maximum compressive stress between two elements that are compressed together. The sensor is formed from a thin RTV film impregnated with microballoons and reinforced with carbon fibers to restrain the lateral deformation of the RTV so that more uniform pressure can be exerted on the microballoons when the sensors are uniaxially compressed.

Abstract translation: 薄膜应力传感器测量压缩在一起的两个元件之间的最大压应力。 传感器由浸渍有微球的薄RTV薄膜形成，并用碳纤维增强，以抑制RTV的横向变形，从而当传感器被单轴压缩时，能够对微球施加更均匀的压力。

公开(公告)号：US5220839A

公开(公告)日：1993-06-22

申请号：US797535

申请日：1991-11-25

Applicant: Ian E. Kibblewhite

Inventor： Ian E. Kibblewhite

IPC: B06B1/06 ,  F16B31/02 ,  G01L1/25 ,  G01L5/24

CPC classification number: B06B1/0662 ,  G01L1/255 ,  G01L5/246 ,  F16B2031/022 ,  G01N2291/02827 ,  G01N2291/2691

Abstract: A load indicating device and a method of using a load indicating device for monitoring the deformation in and imparting torque to a load bearing member are disclosed and claimed. An ultrasonic transducer, grown on one surface of a load bearing member, such as a fastener, is used to determine the length, stress or other tensile load dependent characteristic of the member using ultrasonic techniques.

Abstract translation: 公开并要求保护负载指示装置和使用负载指示装置来监视承载构件的变形并赋予扭矩的方法。 使用生长在诸如紧固件的承载构件的一个表面上的超声换能器来确定使用超声波技术的构件的长度，应力或其他拉伸载荷相关特性。

公开(公告)号：US4964302A

公开(公告)日：1990-10-23

申请号：US653904

申请日：1984-09-25

Applicant: Allen R. Grahn ,  Lynn Astle

Inventor： Allen R. Grahn ,  Lynn Astle

IPC: G01S15/08 ,  G01B17/00 ,  G01B17/04 ,  G01B17/06 ,  G01B17/08 ,  G01L1/25 ,  G01L11/04 ,  G01N29/07

CPC classification number: G01B17/04 ,  G01L1/255 ,  G01L11/04 ,  G01N29/07 ,  G01N2291/02827 ,  G01N2291/02854 ,  G01N2291/02872 ,  Y10S310/80

Abstract: A sensor comprising a deformable medium, such as rubber, an ultrasonic transducer for transmitting a signal through the medium to a face of the medium and for sensing an echo of the signal returned from the face through the material to the transducer and circuit means for determining the time differential between transmission of the signal and return of the echo and for converting the time signal into a distance measurement.

Abstract translation: 一种传感器，包括诸如橡胶的可变形介质，用于通过介质将信号传输到介质的表面的超声换能器，以及用于感测通过材料从表面返回到换能器的信号的回波和用于确定 信号传输和回波返回之间的时差，并将时间信号转换成距离测量。

公开(公告)号：US4210028A

公开(公告)日：1980-07-01

申请号：US910788

申请日：1978-05-30

Applicant: B. Percy Hildebrand

Inventor： B. Percy Hildebrand

IPC: G01L1/00 ,  G01L1/25 ,  G01N29/07 ,  G01N29/04

CPC classification number: G01N29/07 ,  G01L1/255 ,  G01N2291/02827

Abstract: An apparatus for ultrasonically measuring concentrations of stress in objects of interest. The apparatus includes an ultrasonic transducer array for propagating acoustic waves in an object of interest along a plurality of determinable directions and from a plurality of determinable positions. A time interval counter measures the time of flight of the acoustic waves along the determinable directions and from the determinable positions. The time of flight measurements are reconstructed into a map of the variations in acoustic velocity within the object. The changes in acoustic velocity are then mathematically converted into a map of stress concentration areas in the object of interest.

Abstract translation: 用于超声波测量感兴趣物体中的应力集中的装置。 该装置包括用于沿着多个可确定方向和多个可确定位置传播感兴趣对象中的声波的超声换能器阵列。 时间间隔计数器测量沿着可确定方向和从可确定位置的声波的飞行时间。 飞行时间测量被重建成对象内的声速变化的映射。 然后将声速的变化数学转换为感兴趣对象中的应力集中区域的图。

公开(公告)号：US12055453B2

公开(公告)日：2024-08-06

申请号：US17930024

申请日：2022-09-06

Applicant: KABUSHIKI KAISHA TOSHIBA ,  Toshiba Energy Systems & Solutions Corporation

Inventor： Jun Mitani ,  Takero Mukai ,  Takanobu Kojima ,  Masahiko Nakazono

IPC: G01L23/08 ,  G01L1/02 ,  G01L1/10 ,  G01L1/16 ,  G01L1/25

CPC classification number: G01L23/08 ,  G01L1/02 ,  G01L1/103 ,  G01L1/106 ,  G01L1/162 ,  G01L1/165 ,  G01L1/167 ,  G01L1/255

Abstract: A stress estimation method for a machine structure according to an embodiment is provided with a calculation step of calculating a relationship between the stress generated at the evaluation target position and a physical quantity including a sound pressure or vibration generated at a detection position different from the evaluation target position during vibration of the machine structure. The stress estimation method for a machine structure is provided with a detection step of detecting the physical quantity generated at the detection position during operation of the machine structure. The stress estimation method for a machine structure is provided with an estimation step of estimating the stress generated at the evaluation target position during operation of the machine structure on the basis of the relationship calculated in the calculation step and the physical quantity detected in the detection step.

公开(公告)号：US20180345110A1

公开(公告)日：2018-12-06

申请号：US16057869

申请日：2018-08-08

Applicant: NIKE, Inc.

Inventor： Nicholas A. Leech

IPC: A63B69/36

CPC classification number: A63B69/36 ,  A63B60/42 ,  A63B2071/0625 ,  A63B2207/02 ,  A63B2220/30 ,  A63B2220/53 ,  A63B2220/803 ,  A63B2220/808 ,  A63B2225/50 ,  G01L1/255 ,  G06F1/1626 ,  G06K9/00342 ,  G08C2201/93

Abstract: A system, device, and methods include or utilize a microphone, a processor, and a user interface. The microphone senses sound and in response outputs a sound signal indicative of the sound. The processor is coupled to the microphone to receive the sound signal, configured to analyze the sound signal to identify in the sound signal an impact of a golf club with a golf ball during a swing of the golf club and determine a characteristic of the swing of the golf club based on a portion of the sound signal corresponding to sound sensed, at least in part, before the impact. The user interface is coupled to the processor and configured to display information related to the characteristic of the swing as determined by the processor.

公开(公告)号：US20180045683A1

公开(公告)日：2018-02-15

申请号：US15670353

申请日：2017-08-07

Applicant: CHESAPEAKE ENERGY CORPORATION

Inventor： Ji Soo Lee ,  John Brumley ,  Evan Morgan ,  Lance DeSpain

IPC: G01N29/07 ,  G01N29/11 ,  G01N29/44 ,  G01N29/04 ,  G01L1/25

CPC classification number: G01N29/07 ,  G01L1/255 ,  G01N29/043 ,  G01N29/045 ,  G01N29/11 ,  G01N29/221 ,  G01N29/2443 ,  G01N29/44 ,  G01N2291/02491 ,  G01N2291/02827

Abstract: A system for and a method of measuring ultrasonic wave velocities in a subterranean core specimen is provided. Ultrasonic wave velocities are measured from the side surfaces (faces) of a polygonal-shaped core specimen having at least ten sides or faces. Stress is introduced to the core specimen by hydraulic rams associated with each set of opposing sides. As stress is applied, ultrasonic waves are introduced to at least one side of the set of opposing sides and the wave transmitted through the core specimen is measured. Subsequently, the wave velocity for the ultrasonic wave can be calculated based on the measurements taken. Also, elastic properties associated with the core specimen can be calculated.