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1.发明授权Method for measuring part thickness having an external coating using impedance matching delay lines 有权使用阻抗匹配延迟线测量具有外部涂层的部件厚度的方法公开(公告)号：US07194907B2
公开(公告)日：2007-03-27
申请号：US10461382
申请日：2003-06-16
IPC分类号： G01N29/07
CPC分类号： G01B17/02 , G01B17/025 , G01N2291/044
摘要： An ultrasonic transducer for measuring a part with a coating having at least one acoustic transducer, and a buffer delay line having an impedance matched to an impedance of the coating.
摘要翻译： 一种用于测量具有至少一个声换能器的涂层的部件的超声换能器，以及具有与涂层的阻抗匹配的阻抗的缓冲延迟线。
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公开(公告)号：US5463896A
公开(公告)日：1995-11-07
申请号：US129724
申请日：1993-09-29
CPC分类号： G01N3/42
摘要： A device is presented for measuring residual stresses in a solid component.he device includes a hardness measuring component which has an indenter for determining hardness at various locations. Stress (.sigma.) data is obtained by converting the hardness measurements according to the formulaa.multidot.[.sqroot.4P.sub.o.sup.2 -3P.sup.2 -P],where a is a constant in Kbar.sup.-1 mm.sup.2 /kg, which depends on the type of material under test and also on the type of indentor used, where the pressure p is measured in kg/mm.sup.2, and where the average pressure p.sub.o is the average value of mean pressure p along a radial cut line of the solid component specimen.
摘要翻译： 提出了一种用于测量固体部件中的残余应力的装置。 该装置包括具有用于确定各个位置的硬度的压头的硬度测量部件。 通过根据公式ax [2ROOT 4Po2-3P2-P]转换硬度测量值，得到应力（σ）数据，其中a为Kbar-1 mm2 / kg的常数，这取决于被测材料的类型， 对于所使用的压头类型，其中压力p以kg / mm 2测量，并且其中平均压力po是固体成分样品的径向切割线的平均压力p的平均值。
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3.发明授权Apparatus and method for remote ultrasonic determination of thin material properties using signal correlation 失效使用信号相关的远程超声波测定薄材料特性的装置和方法公开(公告)号：US06393384B1
公开(公告)日：2002-05-21
申请号：US09288887
申请日：1999-04-09
IPC分类号： G06G748
CPC分类号： G01N29/4418 , G01N29/11 , G01N29/50 , G01N2291/0237 , G01N2291/0422 , G01N2291/0427
摘要： In an apparatus and method for remote ultrasonic determination of thin material properties using signal correlation, a method and apparatus are provided by which an arbitrarily-oriented anisotropic thin material may be interrogated for characterizing an unknown material property value thereof. The unknown material property may comprise for example temperature, pressure, elastic constants, density, hardness, composition, crystal orientation, grain size, and residual stress, or any material property that is variable with respect to known physical parameters of the material, for example known material elastic constants and/or density. In a first embodiment, theoretical signals are generated, for example a theoretical signal matrix, to characterize a material property value of a thin anisotropic material. A model of the thin material is generated comprising the behavior of the known material physical properties as functions of the unknown material property value to be characterized. For a plurality of known material thicknesses and known material property values, a transduction mechanism is simulated at a source location for generating a simulated elastic stress wave operating on the model at a plurality of source locations. The simulated intensities of signals generated by the simulated elastic stress waves are computed at a sense location to provide a representative composite signal. Theoretical signals are determined from the composite signal at each thickness and at each material property value. In a second aspect, the present invention is directed to a method for empirical characterization of a transduction event in a thin material using iterative temporal decomposition of an initial estimate of the transduction event converging on a measured signal.
摘要翻译： 在使用信号相关性进行薄材料特性的远程超声波测定的装置和方法中，提供了可以询问任意取向的各向异性薄材料以表征其未知材料特性值的方法和装置。 未知的材料性质可以包括例如温度，压力，弹性常数，密度，硬度，组成，晶体取向，晶粒尺寸和残余应力，或者相对于材料的已知物理参数是可变的任何材料性质，例如 已知的材料弹性常数和/或密度。 在第一实施例中，产生理论信号，例如理论信号矩阵，以表征薄的各向异性材料的材料属性值。 产生薄材料的模型，其包括作为要表征的未知材料性质值的函数的已知材料物理性质的行为。 对于多个已知的材料厚度和已知的材料性质值，在源位置处模拟换能机构，以产生在多个源位置上在模型上操作的模拟弹性应力波。 由模拟弹性应力波产生的信号的模拟强度在感测位置计算，以提供代表性的复合信号。 在每个厚度和每个材料属性值下，从复合信号确定理论信号。 在第二方面，本发明涉及一种利用在测量信号上收敛的转导事件的初始估计的迭代时间分解来对薄材料中的转导事件进行经验表征的方法。
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公开(公告)号：US06198097B1
公开(公告)日：2001-03-06
申请号：US09061843
申请日：1998-04-15
申请人： Agostino Abbate , Julius Frankel , Pankaj K. Das
发明人： Agostino Abbate , Julius Frankel , Pankaj K. Das
IPC分类号： G01N23227
CPC分类号： G01N21/1717 , Y10S977/868
摘要： An apparatus and/or system is described which uses the photocharge voltage concept in lieu of optical scattering techniques to measure surface topology and properties of materials. The system is based on the measurement of a small electrical potential difference which appears on any solid body when subjected to illumination by a modulated laser light. This voltage is proportional to the induced change in the surface electrical charge and is capacitively measured on various materials. The characterization of coatings to be used inside the base of guns is just one possible application for use by the U. S. Army.
摘要翻译： 描述了使用光电荷电压概念代替光散射技术来测量材料的表面拓扑和性质的装置和/或系统。 该系统基于通过调制的激光照射时出现在任何实体上的小电位差的测量。 该电压与表面电荷的感应变化成比例，并且在各种材料上电容测量。 在枪支基地内使用的涂层的表征只是美国陆军使用的一种可能的应用。
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公开(公告)号：US5557970A
公开(公告)日：1996-09-24
申请号：US498710
申请日：1995-07-03
申请人： Agostino Abbate , Julius Frankel , Mark Doxbeck
发明人： Agostino Abbate , Julius Frankel , Mark Doxbeck
CPC分类号： G01B17/02
摘要： A method for and system of measuring the thickness of a component dimensionf a sample material. Sound waves are coupled for transmission along a component direction of a sample material and also through first and second reference standards to provide first and second reference thicknesses. As the sound wave signal is transmitted, the time for the sound wave signal to traverse the sample thickness and the first and second reference thicknesses is measured. The thickness of the sample is calculated by calculating the velocity of the signal from the traverse times for the first and second reference thicknesses. Preferable, the calculations are made by a computer, and may be repeated over a period of time to calculate a change of thickness as a function of time. The computer may be used to compare the instantaneous thickness of the sample with at least one parameter such as information used to control a process, a predetermined minimum or maximum thickness a predetermined rate of change with respect to a minimum or maximum time, or a predetermined uneven change in thickness between a plurality of sample thicknesses. The sample may in fact comprise a plurality of locations on a tube, and the process may control a tube being subjected to plating process or a tube that is subject to at least potential erosion of its thickness.
摘要翻译： 用于测量样品材料的部件尺寸的厚度的方法和系统。 声波被耦合以沿着样品材料的分量方向传输，并且还通过第一和第二参考标准来提供第一和第二参考厚度。 随着声波信号的传输，测量声波信号穿过样品厚度和第一和第二参考厚度的时间。 通过计算来自第一和第二参考厚度的横动时间的信号的速度来计算样品的厚度。 优选地，计算由计算机进行，并且可以在一段时间内重复以计算作为时间的函数的厚度变化。 计算机可用于将样品的瞬时厚度与至少一个参数（例如用于控制过程的信息，预定的最小或最大厚度）相对于最小或最大时间的预定变化率或预定的 在多个样品厚度之间厚度的不均匀变化。 实际上，样品可以包括管上的多个位置，并且该过程可以控制经受电镀过程的管或至少受其厚度的潜在腐蚀的管。
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公开(公告)号：US5929338A
公开(公告)日：1999-07-27
申请号：US62190
申请日：1998-04-17
CPC分类号： G01N29/2456 , G01B17/02 , G01N29/07 , G01N29/228 , G01N2291/0258 , G01N2291/02854 , G01N2291/044
摘要： A system which enables the user to measure continuously or intermittently or by remote command the thickness changes, above or below the water, under variable temperature changes of underground culverts with reliability. A liquid delay is used to couple the sound to the culvert comprising a focused transducer (10) screwed into a hollow cone-like structure called a "squirter" or "bubbler" (11) providing the operator of the system a means for searching for good echoes from which calculations of thickness with a computer can be made using the known velocity and echo return times.
摘要翻译： 一种系统，使用户能够连续或间歇地测量，或者通过远程命令测量地下涵洞可变温度变化下的水面以上或以下的厚度变化。 使用液体延迟来将声音耦合到涵洞，包括旋转到称为“喷射器”或“起泡器”（11）的中空锥形结构中的聚焦换能器（10）（11），为系统的操作者提供一种用于搜索 可以使用已知的速度和回波返回时间从计算机计算厚度的良好回波。
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公开(公告)号：US5747693A
公开(公告)日：1998-05-05
申请号：US707362
申请日：1996-09-04
申请人： Agostino Abbate , Julius Frankel , Mark Doxbeck
发明人： Agostino Abbate , Julius Frankel , Mark Doxbeck
CPC分类号： G01N29/28 , G01N29/225 , G01N29/26 , G01N2291/044 , G01N2291/2634 , Y10T29/49764 , Y10T29/49774 , Y10T83/865
摘要： A system can take transverse measurements of an elongated workpiece. The tem has a base for holding the workpiece oriented in an axial direction. A carriage mounted on the base can move axially. This carriage has a linear measurement device for providing a linear signal signifying the axial position of the carriage. An ultrasonic assembly is mounted on the carriage, and includes a nozzle for projecting a stream of liquid against the workpiece. This ultrasonic assembly also has an ultrasonic transducer for transmitting an ultrasonic wave into the stream and for detecting an ultrasonic wave returning in the stream. This ultrasonic transducer has a transducer terminal for exchanging signals signifying the occurrence of ultrasonic waves transmitted into and returning from the stream. A control device is coupled to the transducer terminal for (a) exchanging signals with the ultrasonic transducer, (b) initiating transmission of an ultrasonic wave into the stream, and (c) receiving a signal signifying the return of ultrasonic waves in the stream. This control device can provide a sense signal signifying the operation of the ultrasonic assembly. The system also has a signal processor coupled to the carriage and the control device for providing in response to the linear signal and the sense signal, an evaluation signal signifying the straightness of the workpiece.
摘要翻译： 系统可以对细长工件进行横向测量。 该系统具有用于保持沿轴向取向的工件的基座。 安装在基座上的滑架可以轴向移动。 该托架具有用于提供表示托架的轴向位置的线性信号的线性测量装置。 超声波组件安装在滑架上，并且包括用于将液流突出到工件上的喷嘴。 该超声波组件还具有用于将超声波发送到流中并用于检测在该流中返回的超声波的超声波换能器。 该超声波换能器具有用于交换信号的换能器端子，其表示发送到流中并从该流返回的超声波的发生。 控制装置耦合到换能器端子，用于（a）与超声换能器交换信号，（b）启动超声波传输到流中，以及（c）接收表示流中超声波返回的信号。 该控制装置可以提供表示超声波组件的操作的感测信号。 该系统还具有耦合到滑架和控制装置的信号处理器，用于响应于线性信号和感测信号提供表示工件的平直度的评估信号。
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