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    • 3. 发明申请
    • NON-DESTRUCTIVE EVALUATION OF PIPES AND TUBES USING MAGNETOSTRICTIVE SENSORS
    • 使用磁感​​应传感器对管和管进行非破坏性评估
    • WO1996028727A1
    • 1996-09-19
    • PCT/US1996002255
    • 1996-02-20
    • SOUTHWEST RESEARCH INSTITUTE
    • SOUTHWEST RESEARCH INSTITUTEKWUN, HegeonTELLER, Cecil, M., II
    • G01N29/14
    • G01N29/14G01N29/2412G01N2291/0421G01N2291/048G01N2291/101G01N2291/102G01N2291/2626G01N2291/2634
    • A method and apparatus for the inspection of ferromagnetic and non-ferromagnetic pipes (14) or other cylindrical shell structures utilizing the magnetostrictive effect to detect defects within the structure. The invention constitutes an active testing application, wherein a transmitting coil element (16) generates a mechanical pulse (15) within a cylindrical shell structure through the magnetostrictive effect and a second coil (24) detects reflected mechanical waves (15) within the pipe, or a single sensor (10) functions as both transmitter and detector. The present invention also anticipates a passive monitoring application with a detection coil (16) that continuously monitors ferromagnetic or non-ferromagnetic cylindrical structures for mechanical or acoustic wave emissions (15). Non-ferromagnetic structures (14) are made amenable to inspection by attaching a layer of ferromagnetic material such as nickel on a wall of the structure by plating or bonding such material in a local area where the sensor is to be placed.
    • 用于检查铁磁和非铁磁管(14)或利用磁致伸缩效应来检测结构内的缺陷的其它圆柱形壳结构的方法和装置。 本发明构成主动测试应用,其中发射线圈元件(16)通过磁致伸缩效应在圆柱形外壳结构内产生机械脉冲(15),第二线圈(24)检测管内的反射机械波(15) 或者单个传感器(10)用作发射器和检测器两者。 本发明还预期具有连续监测用于机械或声波发射的铁磁或非铁磁圆柱形结构的检测线圈(16)的被动监测应用(15)。 非铁磁结构(14)可以通过在传感器要放置的局部区域中电镀或粘合这种材料来将结构上的铁等铁磁材料层附着在结构的壁上来进行检查。
    • 4. 发明申请
    • SAMPLING AND MEASURING DEVICE WITH CALIBRATING PISTON
    • 采样和测量装置与校准活塞
    • WO1996009528A1
    • 1996-03-28
    • PCT/US1995011953
    • 1995-09-19
    • SOUTHWEST RESEARCH INSTITUTE
    • SOUTHWEST RESEARCH INSTITUTEKING, James, D.
    • G01N01/14
    • G01N1/14G01N24/085G01N35/00594G01N35/00693G01R33/44
    • A method and apparatus for sampling and measuring a physical property of a product in a container (11). The container (11) has an aperture (11a) in its bottom surface, to which a sampling tube (13) is affixed. A piston (14) moves back and forth in the sampling tube (13), thereby withdrawing and replacing samples of product via the aperture (11a). While a sample is in the sampling tube (13), a sensor (15) senses a measured value of the physical property of interest. The piston (14) has a calibration layer (14a) that is made from a material having a property that is similar to that of the product with respect to the property of interest. For calibration, the piston (14) is positioned so that the sensor (15) senses a measured value that can be compared to a reference value to determine if the sensor output is properly calibrated.
    • 一种用于对容器(11)中的产品的物理性质进行采样和测量的方法和装置。 容器(11)在其底表面上具有一个孔(11a),一个采样管(13)被固定到该孔上。 活塞(14)在采样管(13)中来回移动,从而通过孔(11a)取出和更换产品的样品。 当样品在采样管(13)中时,传感器(15)感测感兴趣的物理性质的测量值。 活塞(14)具有校准层(14a),该校准层(14a)由具有与产品性质相似的性质的材料制成。 为了校准,活塞(14)被定位成使得传感器(15)感测可以与参考值进行比较的测量值,以确定传感器输出是否被适当地校准。
    • 7. 发明申请
    • METHOD FOR GENERATING AND DISPLAYING FOUR-DIMENSIONAL COMPLEX DATA
    • 用于生成和显示四维复合数据的方法
    • WO1998016888A1
    • 1998-04-23
    • PCT/US1997018472
    • 1997-10-15
    • SOUTHWEST RESEARCH INSTITUTE
    • SOUTHWEST RESEARCH INSTITUTEFISHER, Jay, L.PICKENS, Keith, S.
    • G06F17/10
    • G06T11/206
    • A method utilizing high-speed digital computers and high resolution display systems for stacking a plurality of two-dimensional complex displays acquired from individual NDE scans over the surface of a material being inspected. The solid three-dimensional image constructed incorporates the two diemnsions typically provided by eddy current-type testing components (26), i.e., the imaginary or vertical component and the real or horizontal component, and a third dimension that represents the physical orthogonal distance between sequential scans. The solid three-dimensional image is generated by connecting corresponding positional points on adjacent two-dimensional plane displays. The closed solid figure generated results when a null or equilibrium point away from the specific signal features is encountered. Appropriate coloration or shading on the three-dimensional image highlights the features for visual inspection. The method thus provides a representation of all of the data generated by eddy current-type (24) or other NDE probes in a form that allows visualization of the relevant characteristics of the anomaly that permit its identification and relative importance.
    • 一种使用高速数字计算机和高分辨率显示系统的方法,用于堆叠从被检查材料的表面上的各个NDE扫描获取的多个二维复杂显示器。 构建的实体三维图像包含通常由涡流型测试组件(26)提供的两个虚部,即虚部或垂直分量以及实部或水平分量,以及表示连续的物理正交距离的第三维度 扫描。 通过连接相邻的二维平面显示器上的对应位置点来产生实心三维图像。 当遇到距离特定信号特征的零点或平衡点时,闭合的实心图形成结果。 三维图像上的适当着色或着色突出了目视检查的特征。 因此,该方法提供以涡流型(24)或其他NDE探针生成的所有数据的表示,其形式允许可视化允许其识别和相对重要性的异常的相关特征。