公开(公告)号：US06367331B1

公开(公告)日：2002-04-09

申请号：US09421288

申请日：1999-10-20

申请人： Holt Apgar Murray ,  William Ross Conover

发明人： Holt Apgar Murray ,  William Ross Conover

IPC分类号： G01N2900

CPC分类号： H02G1/14 ,  G01B17/02 ,  G02B6/4248 ,  G02B6/4428 ,  H02G15/013 ,  H02G15/14 ,  Y10T82/10

摘要： A method is provided for obtaining dimensional accuracy in a seal assembly. The seal assembly includes a substrate comprised of a material that reflects ultrasonic waves. The seal assembly also includes a deformable sealant material that may, for example, surround the substrate. The method can include ultrasonically measuring a thickness of the sealant between a face of the sealant and a surface of the substrate. The thickness of the sealant is reduced if it exceeds a predetermined value.

摘要翻译： 提供一种用于获得密封组件中的尺寸精度的方法。 密封组件包括由反射超声波的材料构成的基板。 密封组件还包括可变形的密封剂材料，其可以例如围绕基底。 该方法可以包括超声波测量密封剂的表面和基材表面之间的密封剂的厚度。 如果密封剂的厚度超过预定值，则其厚度减小。

公开(公告)号：US06354147B1

公开(公告)日：2002-03-12

申请号：US09344094

申请日：1999-06-25

申请人： Daniel L. Gysling ,  Alan D. Kersey ,  James D. Paduano

发明人： Daniel L. Gysling ,  Alan D. Kersey ,  James D. Paduano

IPC分类号： G01N2900

CPC分类号： G01N29/42 ,  G01N29/024 ,  G01N29/46 ,  G01N2291/0222 ,  G01N2291/0224 ,  G01N2291/02836 ,  G01N2291/02845 ,  G01N2291/02872 ,  G01N2291/106

摘要： At least one parameter of at least one fluid in a pipe 12 is measured using a spatial array of acoustic pressure sensors 14,16,18 placed at predetermined axial locations x1,x2,x3 along the pipe 12. The pressure sensors 14,16,18 provide acoustic pressure signals P1(t), P2(t), P3(t) on lines 20,22,24 which are provided to signal processing logic 60 which determines the speed of sound amix of the fluid (or mixture) in the pipe 12 using acoustic spatial array signal processing techniques with the direction of propagation of the acoustic signals along the longitudinal axis of the pipe 12. Numerous spatial array processing techniques may be employed to determined the speed of sound amix. The speed of sound amix is provided to logic 48 which calculates the percent composition of the mixture, e.g., water fraction, or any other parameter of the mixture or fluid which is related to the sound speed amix. The logic 60 may also determine the Mach number Mx of the fluid. The acoustic pressure signals P1(t), P2(t), P3(t) measured are lower frequency (and longer wavelength) signals than those used for ultrasonic flow meters, and thus is more tolerant to inhomogeneities in the flow. No external source is required and thus may operate using passive listening. The invention will work with arbitrary sensor spacing and with as few as two sensors if certain information is known about the acoustic properties of the system.

摘要翻译： 使用放置在沿着管12的预定轴向位置x1，x2，x3处的声压传感器14,16,18的空间阵列来测量管道12中的至少一种流体的至少一个参数。压力传感器14,16， 18提供了线路20,22,24上的声压信号P1（t），P2（t），P3（t），其被提供给信号处理逻辑60，信号处理逻辑60确定了流体（或混合）中的声音amix的速度 管12使用声学空间阵列信号处理技术与沿着管12的纵向轴线的声信号的传播方向。可以采用许多空间阵列处理技术来确定声音的速度。 声音amix的速度被提供给逻辑48，逻辑48计算混合物的组成百分比，例如水分，或与声速amix相关的混合物或流体的任何其它参数。 逻辑60还可以确定流体的马赫数Mx。 测得的声压信号P1（t），P2（t），P3（t）比用于超声波流量计的声压信号P1（t），P2（t），P3（t）更低频率（和更长波长）的信号，因此更容忍流量的不均匀性。 不需要外部来源，因此可以使用被动收听操作。 如果关于系统的声学特性的某些信息已知，本发明将适用于任意的传感器间距，并且具有少至两个传感器。

公开(公告)号：US06332361B1

公开(公告)日：2001-12-25

申请号：US09417909

申请日：1999-10-13

申请人： Ryuzo Yamada ,  Hirotsugu Horio ,  Takao Shimizu

发明人： Ryuzo Yamada ,  Hirotsugu Horio ,  Takao Shimizu

IPC分类号： G01N2900

CPC分类号： G01N29/11 ,  G01N29/40 ,  G01N2291/011 ,  G01N2291/0226 ,  G01N2291/044 ,  G01N2291/101 ,  G01N2291/102 ,  G01N2291/2634 ,  G01N2291/2675

摘要： A method for evaluating bonding properties of a metallic pipe, the method comprises steps of measuring, in advance of a pipe expansion operation, at least one selected from a degree of shape discontinuity, a degree of defect at a bonding portion, and a degree of change in crystal structure, and comparing a measurement value with a predetermined threshold value to evaluate suitability of the bonding properties for applying pipe expansion.

摘要翻译： 一种用于评价金属管接合性能的方法，所述方法包括以下步骤：在管膨胀操作之前，从形状不连续度，接合部的缺陷度以及接合部的程度 改变晶体结构，并将测量值与预定阈值进行比较，以评估用于施加管道膨胀的接合性能的适用性。

公开(公告)号：US06318146B1

公开(公告)日：2001-11-20

申请号：US09353752

申请日：1999-07-14

申请人： Ernest L. Madsen ,  Warren D. D'Souza ,  Gary R. Frank

发明人： Ernest L. Madsen ,  Warren D. D'Souza ,  Gary R. Frank

IPC分类号： G01N2900

CPC分类号： A61B8/08 ,  A61B8/587 ,  Y10T436/10 ,  Y10T436/24

摘要： Tissue-mimicking material suitable for phantoms for use with at least ultrasound and MRI have sections of material in contact with each other which mimic ultrasound and magnetic resonance imaging properties of human tissues, and preferably also computed tomography properties, so that the phantom can be used for the testing of imaging by various types of medical imagers. A suitable tissue-mimicking material for use in phantoms of this type includes an aqueous mixture of large organic water soluble molecules, a copper salt, a chelating agent for binding the copper ions in the salt, and a gel-forming material. Small glass beads may be intermixed therewith to provide a selected ultrasound attenuation coefficient without substantially affecting the MRI properties of the material. Larger glass beads may be used in a section to control primarily the ultrasound backscatter coefficient without significant effect on the ultrasound attenuation coefficient. Tissue-mimicking material that simulates muscle may have smaller glass beads and a higher concentration of gel-forming material than an adjacent section. Such similar materials in contact with one another show relative stability over extended periods of time.

摘要翻译： 适合用于至少超声和MRI的幻影的组织模仿材料具有彼此接触的材料部分，其模拟人体组织的超声和磁共振成像性质，并且优选地还可以使用计算机断层摄影特性，使得可以使用体模 用于各种医疗成像仪的成像测试。 用于该类型的模型的合适的组织模拟材料包括大的有机水溶性分子的水性混合物，铜盐，用于结合盐中的铜离子的螯合剂和凝胶形成材料。 可以将小玻璃珠与其混合以提供选定的超声衰减系数，而基本上不影响材料的MRI性质。 可以在一个部分中使用更大的玻璃珠以主要控制超声后向散射系数，而对超声衰减系数没有显着影响。 模拟肌肉的组织模拟材料可能具有比相邻部分更小的玻璃珠和更高浓度的凝胶形成材料。 彼此接触的类似材料在长时间内显示相对稳定性。

公开(公告)号：US06305225B1

公开(公告)日：2001-10-23

申请号：US09393118

申请日：1999-09-10

申请人： Moo-Ho Bae ,  Mok-Kun Jeong

发明人： Moo-Ho Bae ,  Mok-Kun Jeong

IPC分类号： G01N2900

CPC分类号： G10K11/346 ,  G01S7/52046

摘要： A focusing method plays a big role of determining a resolution of an ultrasonic image. Focusing is performed by controlling an arrival difference of a signal up to a focal point by an electronics delay circuit. Here, the focusing method for focusing an ultrasonic signal having emitted to a focal point of an object via an array transducer including a plurality of elements, obtains an optimal focusing time delay curve according to the ultrasonic signal travelling velocity to thereby obtain an optimal ultrasonic image. Using only data obtained without any modification of the structure of an existing ultrasonic imaging system, a focusing time delay curve is estimated. Thus, a resolution can be enhanced with only a simple calculation.

摘要翻译： 聚焦方法在确定超声波图像的分辨率方面发挥重要作用。 通过电子延迟电路控制直到焦点的信号的到达差来进行聚焦。 这里，通过包括多个元件的阵列换能器对发射到物体的焦点的超声波信号进行聚焦的聚焦方法根据超声波信号行进速度获得最佳聚焦时间延迟曲线，从而获得最佳超声波图像 。 仅使用在现有的超声成像系统的结构中没有任何修改的数据，估计聚焦时间延迟曲线。 因此，只需简单的计算即可提高分辨率。

公开(公告)号：US06282964B1

公开(公告)日：2001-09-04

申请号：US09398621

申请日：1999-09-17

申请人： Jimmy W. Hancock ,  Daniel T. MacLauchlan ,  Ralph D. Murphy

发明人： Jimmy W. Hancock ,  Daniel T. MacLauchlan ,  Ralph D. Murphy

IPC分类号： G01N2900

CPC分类号： G01N29/2412 ,  G01M3/24 ,  G01N29/0645 ,  G01N29/223 ,  G01N2291/0423 ,  G01N2291/2634

摘要： An EMAT device for non-destructive inspection of the surface of a tube for cracks using acoustic surface waves includes a pulsed magnet having an active surface for facing the surface of a tube to be inspected. A receive emat coil is on the active surface and a transmit emat coil is on the opposite surface of the receive coil. The transmit emat coil has a scan surface for scanning over the tube surface. A transmitter for generating and transmitting an RF signal to the transmit emat coil is provided for generating a transmitted acoustic wave signal along the tube, the transmitted wave creating a reflected acoustic wave if a crack in the tube is encountered, the reflected wave generating a reflection signal in the receive emat coil. A receiver is connected to the receive emat coil for receiving the reflection signal. A digital computer is connected to the receiver for receiving and for processing the reflection signal and a display displays information about a crack in the tube which created the reflected acoustic wave and resulting reflection signal.

摘要翻译： 使用声表面波对用于裂纹的管表面进行非破坏性检查的EMAT装置包括具有用于面对要检查的管的表面的活性表面的脉冲磁体。 接收发射线圈位于有源表面上，发射极化线圈位于接收线圈的相对表面上。 发射Emat线圈具有用于在管表面上扫描的扫描表面。 用于产生和发送RF信号到发射发射线圈的发射器用于沿着管产生传输的声波信号，如果遇到管中的裂纹，发射波产生反射的声波，反射波产生反射 信号在接收emat线圈。 接收器连接到接收发射线圈以接收反射信号。 数字计算机连接到接收器，用于接收和处理反射信号，并且显示器显示关于产生反射的声波和产生的反射信号的管中裂纹的信息。

公开(公告)号：US06832506B1

公开(公告)日：2004-12-21

申请号：US10130403

申请日：2002-09-23

申请人： Julian Mason ,  Andy Augousti ,  Norman McMillan ,  Stuart Smith ,  Michael Baker

发明人： Julian Mason ,  Andy Augousti ,  Norman McMillan ,  Stuart Smith ,  Michael Baker

IPC分类号： G01N2900

CPC分类号： G01N29/02 ,  G01N29/2462 ,  G01N2291/02818

摘要： An apparatus for use in characterising liquids by obtaining a fingerprint of the liquid. This allows one to measure a property of a liquid, and thereby distinguish between liquids. The apparatus comprises means for directing acoustic energy at a sample of the liquid, which is preferably in the form of a drop, and means for deriving a signal related to the interaction of the acoustic energy with the liquid sample. The drop may change in volume or shape during the measurements, to derive additional properties of the liquid. The apparatus and method of the invention are used in distinguishing and analysing a variety of liquid samples.

摘要翻译： 一种用于通过获得液体指纹来表征液体的装置。 这样可以测量液体的性质，从而区分液体。 该装置包括用于引导液体样品处的声能的装置，其优选为液滴形式，以及用于导出与声能与液体样品的相互作用相关的信号的装置。 在测量期间，液滴可能在体积或形状上变化，以得到液体的附加性质。 本发明的装置和方法用于区分和分析各种液体样品。

公开(公告)号：US06810744B2

公开(公告)日：2004-11-02

申请号：US10297027

申请日：2002-11-26

申请人： Marie-Ange Bueno-Bigue ,  Stéphane Fontaine ,  Marc Renner

发明人： Marie-Ange Bueno-Bigue ,  Stéphane Fontaine ,  Marc Renner

IPC分类号： G01N2900

CPC分类号： G01B7/34

摘要： A device for evaluating the surface condition of a material and a method derived from it, based on the use of an element which vibrates under the influence of relative movement with respect to the surface to be assessed. This method allows the analysis of any surface, with or without surface periodicity, regardless of its constitution or its composition, and regardless of any surface treatment(s) it may have undergone. The evaluation device (1) comprises a support (2) to which is attached at least one vibrating element (3) capable of vibrating upon contact with the surface of the material surface (5), the vibrating element (3) being driven to move relative to the material surface (5). The evaluation device (1) also comprises a mechanism (4) for measuring the particular vibrating modes by the vibrating element (3) which furnishes a signal corresponding to a particular vibration modes, a device (6) for processing and analyzing the signal which produces one or more elements of data characterizing a surface condition, and an interface (7) which display the one or more elements of data.

摘要翻译： 基于使用相对于要评估的表面的相对运动影响的振动元件的使用来评估材料的表面状态的装置和从其衍生的方法。 该方法允许分析任何具有或不具有表面周期性的表面，而不管其结构或组成如何，并且不管其可能经历的任何表面处理如何。 评估装置（1）包括支撑件（2），所述支撑件（2）附接有能够在与材料表面（5）的表面接触时能够振动的至少一个振动元件（3），所述振动元件（3）被驱动以移动 相对于材料表面（5）。 评估装置（1）还包括用于通过提供对应于特定振动模式的信号的振动元件（3）来测量特定振动模式的机构（4），用于处理和分析产生 描绘表面状态的一个或多个数据元素，以及显示所述一个或多个数据元素的接口（7）。

公开(公告)号：US06763722B2

公开(公告)日：2004-07-20

申请号：US09904620

申请日：2001-07-13

申请人： Todd Fjield ,  Patrick David Lopath ,  Edward Paul Harhen

发明人： Todd Fjield ,  Patrick David Lopath ,  Edward Paul Harhen

IPC分类号： G01N2900

CPC分类号： B06B1/0674 ,  A61B17/2202 ,  A61B18/1492 ,  A61B18/24 ,  A61B2017/00274 ,  A61B2018/00214 ,  A61B2018/00547 ,  A61N7/00 ,  A61N7/022 ,  A61N2007/0043 ,  G10K11/004

摘要： A compact, high-power ultrasonic emitting transducer has an active element such as a piezoelectric element and structure defining a reflective backing interface such as an air interface behind the rear surface of the active element. A liquid is provided in the resonant unit between the backing interface and the active element.

摘要翻译： 紧凑的大功率超声发射换能器具有有源元件，例如压电元件和限定反射背衬界面的结构，例如有源元件后表面之后的空气界面。 在背衬界面和有源元件之间的谐振单元中提供液体。

公开(公告)号：US06745628B2

公开(公告)日：2004-06-08

申请号：US10206234

申请日：2002-07-29

申请人： Bernd Wunderer

发明人： Bernd Wunderer

IPC分类号： G01N2900

CPC分类号： G01N29/348 ,  G01N29/11 ,  G01N29/42 ,  G01N29/4445 ,  G01N2291/0237 ,  G01N2291/02854 ,  G01N2291/048 ,  G07D7/06

摘要： A method is described for testing thin material wherein the material is irradiated with ultrasonic waves at least in certain areas and transmission of the ultrasonic waves through the material is determined and evaluated. The transmission of ultrasonic waves of different frequencies is thereby determined. The differences of the transmission at the different frequencies are then used to determine a criterion for evaluating the quality, in particular the porosity, of the irradiated material. Furthermore, a corresponding test device is described.

摘要翻译： 描述了用于测试薄材料的方法，其中至少在某些区域中用超声波照射材料，并且确定和评估超声波通过材料的透射。 由此确定不同频率的超声波的传输。 然后使用不同频率下的透射率的差异来确定用于评估辐射材料的质量，特别是孔隙率的标准。 此外，描述了相应的测试装置。