Method of determining load in anisotropic non-crystalline materials
using energy flux deviation
    21.
    发明授权
    Method of determining load in anisotropic non-crystalline materials using energy flux deviation 失效
    使用能量通量偏差确定各向异性非晶材料中的载荷的方法

    公开(公告)号:US5337610A

    公开(公告)日:1994-08-16

    申请号:US027092

    申请日:1993-02-22

    Abstract: An ultrasonic wave is applied to an anisotropic sample material in an initial direction and the intensity of the ultrasonic wave is measured on an opposite surface of the sample material by two adjacent receiving points located in an array of receiving points. A ratio is determined between the measured intensities of two adjacent receiving points, the ratio being indicative of an angle of flux deviation from the initial direction caused by an unknown applied load. This determined ratio is then compared to a plurality of ratios of a similarly tested, similar anisotropic reference material under a plurality of respective, known load conditions, whereby the load applied to the particular anisotropic sample material is determined. A related method is disclosed for determining the fiber orientation from known loads and a determined flux shift.

    Abstract translation: 在初始方向上向各向异性样品材料施加超声波,并且通过位于接收点阵列中的两个相邻接收点在样品材料的相对表面上测量超声波的强度。 在两个相邻接收点的测量强度之间确定比率,该比率表示由未知施加负载引起的与初始方向的通量偏差角。 然后将该确定的比率与多个相同的已知负载条件下的类似测试的类似各向异性参考材料的多个比率进行比较,由此确定施加到特定各向异性样品材料的负载。 公开了一种用于确定来自已知负载的纤维取向和确定的通量偏移的相关方法。

    Ultrasonic cure monitoring of advanced composites
    22.
    发明授权
    Ultrasonic cure monitoring of advanced composites 失效
    超声波固化监测高级复合材料

    公开(公告)号:US5009104A

    公开(公告)日:1991-04-23

    申请号:US443637

    申请日:1989-11-30

    Abstract: Method and apparatus for the non-destructive monitoring of the time dependent curing of an advanced composite positioned within an autoclave where it is subjected to varying pressures and elevated temperatures over a predetermined time period. A tool receiving the uncured advanced composite for receiving an acoustic wave guide which directly coupled to the composite. Ultrasound pulses are directed through the acoustic wave guide and the amplitude of the reflected pulses indicate changes in the modulus of the composite during the cure.

    Abstract translation: 一种用于非破坏性地监测定位在高压釜内的高级复合材料的时间依赖性固化的方法和装置,其中它在预定时间段内经受变化的压力和升高的温度。 接收未固化高级复合材料的工具,用于接收直接耦合到复合材料的声波导件。 超声脉冲被引导通过声波引导,并且反射脉冲的振幅表示在固化期间复合材料的模量的变化。

    Non-destructive evaluation of ropes by using transverse impulse
vibrational wave method
    23.
    发明授权
    Non-destructive evaluation of ropes by using transverse impulse vibrational wave method 失效
    使用横向脉冲振动波法对绳索进行非破坏性评估

    公开(公告)号:US4979125A

    公开(公告)日:1990-12-18

    申请号:US512037

    申请日:1990-04-13

    Abstract: A non-destructive method for evaluating ropes, cables, and strands for flaws and tension is shown. The method permits detecting flaws by recognizing certain vibrational wave amplitude and distribution patterns resulting from striking a test subject with a transverse force. Tension on a test subject is calculated by measuring propagation velocity of the vibrational waves through the test subject. An apparatus is provided which produces vibrational waves in a test subject, measures the amplitude and time distribution of the waves, and displays the measurements for analysis.

    Abstract translation: 显示了用于评估瑕疵和张力的绳索,电缆和股线的非破坏性方法。 该方法允许通过识别由横向力击打测试对象而产生的某些振动波振幅和分布模式来检测缺陷。 通过测量通过测试对象的振动波的传播速度来计算测试对象的张力。 提供了一种在测试对象中产生振动波的装置,测量波的幅度和时间分布,并显示用于分析的测量值。

    Ultrasonic transducer system and evaluation methods
    27.
    发明授权
    Ultrasonic transducer system and evaluation methods 有权
    超声波换能器系统及评估方法

    公开(公告)号:US08453510B2

    公开(公告)日:2013-06-04

    申请号:US13184184

    申请日:2011-07-15

    Abstract: Methods and systems are provided for evaluating rock specimens subjected to high pressures and temperatures by ultrasonic evaluation utilizing various transducer enhancements. Certain embodiments contemplate configuring ultrasonic evaluation systems to provide more accurate measurements, enhanced protection of transducer elements, fewer metal interfaces between transducer elements and test specimens, and easier access to transducer elements for maintenance and replacement. Additionally, certain embodiments allow for sequential or simultaneous p-wave and s-wave measurements of a test specimen. These enhancements translate into a more accurate and efficient ultrasonic evaluation system offering higher resolution measurements.

    Abstract translation: 提供了通过使用各种换能器增强的超声波评估来评估经受高压和高温的岩石试样的方法和系统。 某些实施例考虑配置超声评价系统以提供更准确的测量,增强的换能器元件的保护,换能器元件和测试样本之间的更少金属界面,以及更容易地接近换能器元件以进行维护和更换。 此外,某些实施例允许测试样本的顺序或同时的p波和s波测量。 这些增强功能可以转化为更精确和更有效的超声波评估系统,提供更高分辨率的测量。

    Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials
    28.
    发明授权
    Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials 有权
    PDC,PCBN或其他硬质或超硬材料的声发射韧度测试

    公开(公告)号:US08365599B2

    公开(公告)日:2013-02-05

    申请号:US12963913

    申请日:2010-12-09

    Inventor: Federico Bellin

    CPC classification number: G01N29/14 G01N29/227 G01N2291/0232

    Abstract: An acoustic emissions testing device includes a pressurizable chamber, a rock sample, and one or ore acoustic sensors communicably coupled to the rock sample. The chamber includes a first chamber being pressurizable to a first pressure and a second chamber pressurizable to a second pressure. The rock sample is positioned within the pressurizable chamber such that a first portion of the sample is exposed to the first pressure and a second portion of the sample is exposed to the second pressure. The second pressure is increased to a threshold pressure, maintained at the threshold pressure for a time period, and then decreased. The acoustic sensors detect one or more acoustic events occurring within the rock sample. In certain embodiments, one or more of the intensity, the spatial location, and the propagating direction for one or more acoustic events are determinable. The system includes the testing device coupled to a recorder.

    Abstract translation: 声发射测试装置包括可加压室,岩石样品和可通信地耦合到岩石样品的一个或多个声学传感器。 该室包括可加压至第一压力的第一室和可加压至第二压力的第二室。 岩石样品位于可加压室内,使得样品的第一部分暴露于第一压力,并且样品的第二部分暴露于第二压力。 将第二压力增加到阈值压力,保持在阈值压力一段时间,然后减小。 声学传感器检测在岩石样品内发生的一个或多个声学事件。 在某些实施例中,可以确定一个或多个声学事件的强度,空间位置和传播方向中的一个或多个。 该系统包括耦合到记录器的测试装置。

    APPARATUS AND METHOD FOR DETECTING A PROPERTY OF A FLUID
    29.
    发明申请
    APPARATUS AND METHOD FOR DETECTING A PROPERTY OF A FLUID 审中-公开
    用于检测流体性质的装置和方法

    公开(公告)号:US20110167910A1

    公开(公告)日:2011-07-14

    申请号:US13119293

    申请日:2009-09-16

    Abstract: An apparatus comprises a tensioned sample tube that receives a fluid sample, the tensioned sample tube has a pre-determined tension applied thereto. A vibration source and a vibration detector are coupled to the tensioned sample tube. A method of estimating a property of a fluid comprises tensioning a sample tube to a predetermined tension. A sample of the fluid is received in the tensioned sample tube. The tensioned sample tube is vibrated. A resonant frequency of the tensioned sample tube is detected. The property of the fluid is estimated based on the detected resonant frequency of the tensioned sample tube.

    Abstract translation: 一种装置包括接收流体样品的张紧的样品管,张紧的样品管具有施加到其上的预定张力。 振动源和振动检测器耦合到张紧的样品管。 估计流体性质的方法包括将样品管张紧到预定的张力。 在张紧的样品管中接收流体样品。 张紧的样品管振动。 检测张紧样品管的共振频率。 基于检测到的拉伸样品管的共振频率来估计流体的性质。

    METHOD AND APPARATUS FOR DETECTING DAMAGE TO HIGH-PRESSURE TANK
    30.
    发明申请
    METHOD AND APPARATUS FOR DETECTING DAMAGE TO HIGH-PRESSURE TANK 失效
    用于检测高压罐损坏的方法和装置

    公开(公告)号:US20100107765A1

    公开(公告)日:2010-05-06

    申请号:US12527353

    申请日:2008-07-11

    Abstract: There are provided a method and an apparatus for detecting damage to a high-pressure tank, with which a sign of failure of a high-pressure tank containing a high-pressure fluid can be detected early and non-destructively.An acoustic emission sensor (AE sensor) 1 is used for the non-destructive detection of a sign of failure that occurs upon filling a high-pressure tank 2 with a fluid. One AE signal detected by the AE sensor 1 is counted as one hit, the hit rate indicating the change in hits over time is found, and a sign of failure is detected from the change in the hit rate. When microcracks develop in the high-pressure tank 2, and a plurality of these microcracks join together and grow into a single, macroscopic crack, the hit rate of the AE signal no longer increases with respect to an increase in the internal pressure of the high-pressure tank 2, eventually reaching a saturation state. The hit rate in this saturation state is used to determine that there is a sign of failure.

    Abstract translation: 提供了一种用于检测对高压罐的损坏的方法和装置,可以及早且非破坏地检测含有高压流体的高压罐的故障的迹象。 声发射传感器(AE传感器)1用于在用流体填充高压罐2时发生的失效标志的非破坏性检测。 由AE传感器1检测到的一个AE信号被计数为一个命中,发现指示随时间的命中变化的命中率,并且从命中率的变化中检测到故障的符号。 当高压罐2中发生微裂纹时,多个这些微裂纹连接在一起并生长成单一的宏观裂纹,AE信号的命中率相对于高压内部压力的增加而不再增加 压力罐2,最终达到饱和状态。 该饱和状态下的命中率用于确定有失败的迹象。

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