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1.发明授权
公开(公告)号：US4476434A
公开(公告)日：1984-10-09
申请号：US342431
申请日：1982-01-25
CPC分类号： G01S15/897 , G01N27/9046 , G01N29/0609 , G01N29/0663 , G01N29/069
摘要： An apparatus and method for imaging of structural characteristics in test objects using radiation amenable to coherent signal processing methods. Frequency and phase multiplication of received flaw signals is used to simulate a test wavelength at least one to two orders of magnitude smaller than the actual wavelength. The apparent reduction in wavelength between the illumination and recording radiation performs a frequency translation hologram. The hologram constructed with a high synthetic frequency and flaw phase multiplication is similar to a conventional acoustic hologram construction at the high frequency.
摘要翻译： 使用适合于相干信号处理方法的辐射的测试对象中的结构特征成像的装置和方法。 使用接收到的瑕疵信号的频率和相位相乘来模拟测试波长比实际波长小至少一到两个数量级。 照明和记录辐射之间的波长的明显减少执行频率转换全息图。 用高合成频率和缺陷相位相乘构成的全息图类似于高频下的传统声全息图结构。
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公开(公告)号：US5557283A
公开(公告)日：1996-09-17
申请号：US440279
申请日：1995-05-12
申请人： David M. Sheen , H. Dale Collins , Thomas E. Hall , Douglas L. McMakin , R. Parks Gribble , Ronald H. Severtsen , James M. Prince , Larry D. Reid
发明人： David M. Sheen , H. Dale Collins , Thomas E. Hall , Douglas L. McMakin , R. Parks Gribble , Ronald H. Severtsen , James M. Prince , Larry D. Reid
CPC分类号： G01S13/89 , G01S13/887 , G01V8/005 , A61B5/05 , A61B5/7257
摘要： A wideband holographic surveillance system including a transceiver for generating a plurality of electromagnetic waves; antenna for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; the transceiver also receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; a computer for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and a display for displaying the processed information to determine nature of the target. The computer has instructions to apply a three dimensional backward wave algorithm.
摘要翻译： 一种宽带全息监视系统，包括用于产生多个电磁波的收发器; 用于在空间中的多个预定位置向目标发送电磁波的天线; 收发器还在空间中的多个预定位置处接收并转换从目标反射的电磁波到电信号; 用于处理电信号以获得对应于目标的全息重建的信号的计算机; 以及用于显示处理的信息以确定目标的性质的显示器。 计算机具有应用三维反向波算法的指令。
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3.发明授权Automated measurement system employing eddy currents to adjust probe position and determine metal hardness 失效自动测量系统采用涡流调节探头位置并确定金属硬度
公开(公告)号：US4849693A
公开(公告)日：1989-07-18
申请号：US162020
申请日：1988-02-29
IPC分类号： G01N27/90
CPC分类号： G01N27/9053
摘要： A system for measuring the hardness of cartridge cases employs an eddy current probe for inducing and sensing eddy currents in each cartridge case. A first component of the sensed signal is utilized in a closed loop system for accurately positioning the probe relative to the cartridge case both in the lift off direction and in the tangential direction, and a second component of the sensed signal is employed as a measure of the hardness. The positioning and measurement are carried out under closed loop microprocessor control facilitating hardness testing on a production line basis.
摘要翻译： 用于测量盒壳硬度的系统采用涡流探头，用于感应和感测每个盒体中的涡流。 感测信号的第一分量被用在闭环系统中，用于在提升偏离方向和切线方向上相对于盒壳精确地定位探针，并且使用感测信号的第二分量作为 的硬度。 定位和测量在闭环微处理器控制下进行，便于生产线上的硬度测试。
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4.发明申请公开(公告)号：US20100207803A1
公开(公告)日：2010-08-19
申请号：US12388335
申请日：2009-02-18
CPC分类号： H01Q9/27 , G01S7/026 , G01S13/888 , H01Q1/38
摘要： Circularly-polarized antennas and their methods of use for active holographic imaging through barriers. The antennas are dielectrically loaded to optimally match the dielectric constant of the barrier through which images are to be produced. The dielectric loading helps to remove barrier-front surface reflections and to couple electromagnetic energy into the barrier.
摘要翻译： 圆极化天线及其通过屏障进行有源全息成像的方法。 天线被介电加载以最佳地匹配要产生图像的屏障的介电常数。 电介质负载有助于去除阻挡前表面反射并将电磁能耦合到屏障中。
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