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1.发明公开公开(公告)号：US20240280424A1
公开(公告)日：2024-08-22
申请号：US18581320
申请日：2024-02-19
Applicant: Southwest Research Institute
Inventor： Xin Chen , Adam C. Cobb , Douglas R. Earnest , Clint J. Thwing , Nikolay Akimov
CPC classification number: G01L1/255 , G01N29/07 , G01N29/223 , G01N29/227 , G01N29/34 , G01N29/4436 , G01N2291/011 , G01N2291/0234 , G01N2291/02827 , G01N2291/0421 , G01N2291/105
Abstract: A method for detecting residual stress induced by cold expansion (Cx) (Cx stress) at a hole in a structure. Two transducer pairs transmit and receive ultrasonic waves into the structure in a pitch-catch configuration along two first paths parallel to a tangent of the hole. The two paths are at different distances from the hole. Both transducer pairs are arranged such that their incident angle into the structure provides longitudinal critically refracted (LCR) waves within the structure. Time-of-flight (ToF) measurements of the LCR waves along the first path and the second path are the basis of acoustoelasticity calculations that determine if Cx stress is present at the hole.
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2.发明公开公开(公告)号：US20240240976A1
公开(公告)日：2024-07-18
申请号：US18291688
申请日：2021-11-12
Applicant: LVYIN TECHNOLOGY (WUHAN) CO., LTD.
Inventor： Kun LI , Xuxiang ZHU , Yuping SHEN
Abstract: A method for the ultrasonic double-wave measurement includes: obtaining a first mode wave time-of-flight and a second mode wave time-of-flight of an ultrasonic double-wave of a solid material at a first temperature and stress state; measuring a first mode wave time and a second mode wave time of the ultrasonic double-wave of the solid material in an unknown state; obtaining a first mode wave temperature influence coefficient and a second mode wave temperature influence coefficient of the solid material, and a first mode wave pre-tightening force influence coefficient and a second mode wave pre-tightening force influence coefficient in the solid material to be measured having the same specification and geometric shape; and obtaining a relative change relationship of ultrasonic double-wave time-of-flight according to the first-order or second-order Taylor approximation, and jointly solving to obtain a measured pre-tightening force and a measured temperature.
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3.发明授权公开(公告)号：US12025515B2
公开(公告)日：2024-07-02
申请号：US17540761
申请日：2021-12-02
Inventor： Aitzol Iturrospe Iregui
CPC classification number: G01L1/255 , G01K11/26 , G01M5/00 , G01M5/0066 , G01M7/00
Abstract: A method of measurement of the acting forces and/or the temperature in at least one region of a structure. The method includes an addition step in which at least one element is added to the structure, the addition generating a local vibration mode of the assembly formed by the structure and the added elements in each measurement region. The method also includes a step of analysis of the assembly, an excitation step of the assembly and a measurement step in which the variations produced in the resonance frequency of the assembly associated with the local vibration mode of each measurement region are measured. The method also includes a calculation step in which the acting forces and/or the temperature of the structure in the measurement region is determined based on the measured variation produced in the resonance frequency associated with the local vibration mode.
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公开(公告)号：US09903840B2
公开(公告)日：2018-02-27
申请号：US14771162
申请日：2014-02-20
Applicant: AREVA GmbH
Inventor： Iris Altpeter , Ralf Tschuncky , Hans-Georg Herrmann , Jochen Kurz , Gerd Dobmann , Gerhard Hübschen , Steffen Bergholz , Jürgen Rudolph
CPC classification number: G01N29/2412 , G01L1/255 , G01M5/0025 , G01M5/0066 , G01N27/025 , G01N29/07 , G01N29/11 , G01N2203/0069 , G01N2291/0258 , G01N2291/02827 , G01N2291/2634
Abstract: The present invention relates to a method for detecting temporally varying thermomechanical stresses and/or stress gradients over the wall thickness of metal bodies, in particular pipelines. In the method, the temperature on the outer surface of the body is measured in order to determine a temperature progression and stress progression therefrom. In addition, electromagnetic ultrasonic transducers are used at at least one measuring point on the outer surface in order to determine the progression of the stresses and/or stress gradients over time over the wall thickness of the body in conjunction with the result of the temperature measurement. The method allows the fatigue monitoring of pipelines even in the event of rapid stress changes.
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公开(公告)号：US09146203B2
公开(公告)日：2015-09-29
申请号：US13812575
申请日：2011-07-29
Applicant: Hideo Toraya , Shigeru Munekawa
Inventor： Hideo Toraya , Shigeru Munekawa
IPC: G01N23/20 , G01N23/207 , G01L1/25 , G01L1/00 , G01B15/00
CPC classification number: G01N23/207 , G01B15/00 , G01L1/00 , G01L1/25 , G01L1/255 , G01N23/20 , G01N23/20075
Abstract: An X-ray stress measuring apparatus, for measuring stress on a sample, comprises: a pair of X-ray generating means (10, 11, 10′, 11′) for irradiating X-ray beams, determining an angle defined between the X-ray beams, mutually, at an arbitrary fixed angle, on a plane inclining by an angle desired with respect to a surface of the sample to be measured stress thereon; an X-ray sensor portion (29) for detecting plural numbers of Debye rings (C, C′), which are generated by incident X-ray beams from said pair of X-ray generating means; and a battery (410) for supplying necessary electricity to each of parts of the apparatus, wherein said X-ray sensor portion is made up with only one (1) piece of a 2-dimensional X-ray detector (20) or a 1-dimensional X-ray detector (20′), and is disposed in a position where the plural numbers of Debye rings generated by the incident X-ray beams from the at least one pair of X-ray generating means are adjacent to each other, or intersect with each other, thereby detecting the plural numbers of the Debye rings caused due to the X-ray and the X′-ray in common with.
Abstract translation: 一种用于测量样品上的应力的X射线应力测量装置，包括：一对用于照射X射线束的X射线产生装置（10,11,10'，11'），确定X 在相对于要测量的样品的表面倾斜所需的角度的平面上相互以任意的固定角相互对应的射线束在其上应力; 用于检测来自所述一对X射线产生装置的入射X射线束产生的多个Debye环（C，C'）的X射线传感器部分（29） 以及用于向设备的每个部分提供必要电力的电池（410），其中所述X射线传感器部分仅由一个（2）的X射线检测器（20）或1 并且被设置在由来自至少一对X射线产生装置的入射X射线束产生的多个Debye环彼此相邻的位置处， 或彼此相交，从而检测由于X射线引起的多个Debye环和与X'-X共同的X'射线。
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Patent Agency Ranking
6.发明授权System and methods to determine and monitor changes in microstructural properties 有权确定和监测微观结构特性变化的系统和方法公开(公告)号：US08887572B2
公开(公告)日：2014-11-18
申请号：US12984291
申请日：2011-01-04
Applicant: Joseph A. Turner
Inventor： Joseph A. Turner
CPC classification number: G01L1/255 , B61K9/08 , G01N29/04 , G01N29/12 , G01N29/2418 , G01N29/4445 , G01N2291/02881 , G01N2291/102 , G01N2291/105 , G01N2291/2623
Abstract: A system and methods with which changes in microstructure properties such as grain size, grain elongation, texture, and porosity of materials can be determined and monitored over time to assess conditions such as stress and defects. An example system includes a number of ultrasonic transducers configured to transmit ultrasonic waves towards a target region on a specimen, a voltage source configured to excite the first and second ultrasonic transducers, and a processor configured to determine one or more properties of the specimen.
Abstract translation: 可以随时间确定和监测材料的微观结构特性如晶粒尺寸，晶粒伸长率，纹理和孔隙度等变化的系统和方法，以评估应力和缺陷等条件。 示例性系统包括多个超声波换能器，其配置成朝向样本上的目标区域发射超声波，配置成激发第一和第二超声波换能器的电压源以及被配置为确定样本的一个或多个特性的处理器。
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公开(公告)号：US20140216172A1
公开(公告)日：2014-08-07
申请号：US14166066
申请日：2014-01-28
Applicant: Padelis Katsaros
Inventor： Padelis Katsaros
IPC: G01L1/25
CPC classification number: G01M13/045 , G01L1/255
Abstract: A device for determining a bearing preload of a rolling-element bearing includes an exciter configured to be attachable to a component of the rolling-element bearing and to excite the component of the rolling-element bearing and cause it to vibrate when the rolling-element bearing is not rotating, at least one vibration sensor configured to be attachable to the component or to a further component of the rolling-element bearing and to record (capture) a mechanical reaction, in response to the excitation, of the component or the further component of the rolling-element bearing, and an evaluating circuit configured to receive the sensor signal and provide an evaluation signal based on the sensor signal, the evaluation signal including information about the bearing preload. An associated method and computer program are also disclosed.
Abstract translation: 一种用于确定滚动体轴承的轴承预载的装置包括：激励器，其构造成可附接到滚动体轴承的部件，并激励滚动元件轴承的部件，并使其在滚动元件 轴承不旋转，至少一个振动传感器被配置为可附接到部件或滚动元件轴承的另一部件，并且响应于激发而记录（捕获）部件或另外的部件的机械反应 滚动元件轴承的部件，以及评估电路，被配置为接收所述传感器信号并且基于所述传感器信号提供评估信号，所述评估信号包括关于所述轴承预载荷的信息。 还公开了一种相关联的方法和计算机程序。
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公开(公告)号：US08427176B2
公开(公告)日：2013-04-23
申请号：US12748078
申请日：2010-03-26
Applicant: Marc Stein
Inventor： Marc Stein
Abstract: At least one embodiment is directed to a sensor for measuring a parameter. A signal path of the system comprises an amplifier (612), a sensor element, and an amplifier (620). The sensor element comprises a transducer (4), a waveguide (5), and a transducer (30). A parameter such as force or pressure applied to the sensor element can change the length of waveguide (5). A pulsed energy wave is emitted by the transducer (4) into the waveguide (5) at a first location. The transducer (30) is responsive pulsed energy waves at a second location of the waveguide (5). The transit time of each pulsed energy wave is measured. The transit time corresponds to the pressure or force applied to the sensor element.
Abstract translation: 至少一个实施例涉及用于测量参数的传感器。 系统的信号路径包括放大器（612），传感器元件和放大器（620）。 传感器元件包括换能器（4），波导（5）和换能器（30）。 诸如施加到传感器元件的力或压力的参数可以改变波导（5）的长度。 在第一位置处，换能器（4）将脉冲能量波发射到波导（5）中。 换能器（30）在波导（5）的第二位置处响应脉冲能量波。 测量每个脉冲能量波的渡越时间。 通过时间对应于施加到传感器元件的压力或力。
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公开(公告)号：US08033181B2
公开(公告)日：2011-10-11
申请号：US12227772
申请日：2007-05-24
Applicant: Ian E. Kibblewhite , Donald E. Kotas
Inventor： Ian E. Kibblewhite , Donald E. Kotas
IPC: F16B31/02
CPC classification number: G01L1/255 , B25B23/1456 , B25B23/147 , B25B23/1475 , F16B1/0071 , F16B2031/022 , G01L5/246
Abstract: A system is provided for both reading an optical identification mark, such as a bar code, on a fastener and for making ultrasonic load measurements in the fastener using a single probe for use during fastener installation with assembly tools and for the inspection of load in preinstalled fasteners. The probe includes both a fiber optic imaging cable and at least one electrical conductor. The fiber optic imaging cable is optically coupled to an imaging device such as a bar code reader allowing the bar code reader to be located remote from the fastener. The electrical conductor provides an electrical connection from the ultrasonic transducer on the fastener to load measurement instrumentation. The probe is further capable of providing illumination of the bar code to facilitate reading of the bar code.
Abstract translation: 提供一种系统，用于读取紧固件上的光学识别标记（例如条形码），并且使用单个探针在紧固件安装期间使用组装工具进行超声波载荷测量，并用于检查预先安装的载荷 紧固件。 探头包括光纤成像电缆和至少一个电导体。 光纤成像电缆光学耦合到诸如条形码读取器的成像装置，其允许条形码读取器远离紧固件定位。 电导体提供从紧固件上的超声波换能器到负载测量仪器的电连接。 该探头还能够提供条形码的照明，以便于读取条形码。
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公开(公告)号：US20100327880A1
公开(公告)日：2010-12-30
申请号：US12748078
申请日：2010-03-26
Applicant: Marc Stein
Inventor： Marc Stein
IPC: G01R27/04
Abstract: At least one embodiment is directed to a sensor for measuring a parameter. A signal path of the system comprises an amplifier (612), a sensor element, and an amplifier (620). The sensor element comprises a transducer (4), a waveguide (5), and a transducer (30). A parameter such as force or pressure applied to the sensor element can change the length of waveguide (5). A pulsed energy wave is emitted by the transducer (4) into the waveguide (5) at a first location. The transducer (30) is responsive pulsed energy waves at a second location of the waveguide (5). The transit time of each pulsed energy wave is measured. The transit time corresponds to the pressure or force applied to the sensor element.
Abstract translation: 至少一个实施例涉及用于测量参数的传感器。 系统的信号路径包括放大器（612），传感器元件和放大器（620）。 传感器元件包括换能器（4），波导（5）和换能器（30）。 诸如施加到传感器元件的力或压力的参数可以改变波导（5）的长度。 在第一位置处，换能器（4）将脉冲能量波发射到波导（5）中。 换能器（30）在波导（5）的第二位置处响应脉冲能量波。 测量每个脉冲能量波的渡越时间。 通过时间对应于施加到传感器元件的压力或力。
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