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公开(公告)号：US06181411B2
公开(公告)日：2001-01-30
申请号：US09134862
申请日：1998-08-14
IPC分类号： G01C308
CPC分类号： G01C15/002 , G01B11/24 , G01N21/8806 , G01N21/9515 , G01N21/954 , G01N2021/9546
摘要： Apparatus for inspecting the surfaces of inaccessible objects such as the components of a nuclear power plant steam generator includes: an articulated inspection wand having a proximal end and a distal end movable into position adjacent the surface to be inspected, a laser light source located remotely from the distal end, first and second position sensing detectors located remotely from the distal end of the wand, first and second extending imaging light guides extending from the laser light source, and the position sensing detectors to the distal end of the wand.
摘要翻译： 用于检查诸如核电厂蒸汽发生器的部件的不可接近物体的表面的装置包括：铰接式检查棒，其具有可移动到相邻待检查表面的位置的近端和远端;激光光源， 所述远端，第一和第二位置感测检测器远离所述棒的远端，从所述激光光源延伸的第一和第二延伸成像光导，以及所述位置感测检测器到所述棒的远端。
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公开(公告)号：US20060043302A1
公开(公告)日：2006-03-02
申请号：US11205147
申请日：2005-08-17
申请人： David Prelewitz , Robert Gray , Rolf Gerchberg , Michael Weiner
发明人： David Prelewitz , Robert Gray , Rolf Gerchberg , Michael Weiner
IPC分类号： G01J5/02
CPC分类号： G02B27/48
摘要： A coherent radiation imaging system that produces digital images with a reduced amount of speckle. Radiation from a long coherence length source is used to form an image of a sample. The output coherent wave is temporally divided into a plurality of wavelets. The spatial phase of each wavelet is then modulated a known and different amount. Each phase modulated wavelet illuminates the sample and is perturbed by its interaction with the sample. A spatial phase map of each perturbed wavelet is then created and converted to a sample image with an image reconstruction program. The plurality of sample images thus formed is statistically averaged to form a final averaged image. The high frequency speckle that is not optically resolvable tends to average to zero with continual statistical averaging, leaving only the optically resolvable lower frequency phase information.
摘要翻译： 相干辐射成像系统，产生数量少的斑点数字图像。 来自长相干长度源的辐射用于形成样品的图像。 输出相干波在时间上分为多个小波。 然后将每个小波的空间相位调制为已知且不同的量。 每个相位调制小波照亮样品，并受到与样品的相互作用的干扰。 然后创建每个扰动小波的空间相位图，并将其转换为具有图像重建程序的样本图像。 如此形成的多个样本图像被统计学地平均以形成最终平均图像。 不能光学解析的高频散斑趋向于平均为零，并且连续的统计平均，仅留下光学可分辨的较低频率相位信息。
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公开(公告)号：US07282716B2
公开(公告)日：2007-10-16
申请号：US10983053
申请日：2004-11-05
申请人： David Prelewitz , Robert Gray , Rolf Gerchberg , Michael Weiner
发明人： David Prelewitz , Robert Gray , Rolf Gerchberg , Michael Weiner
CPC分类号： G02B27/48
摘要： A coherent radiation imaging system that produces digital images with a reduced amount of speckle. Radiation from a long coherence length source is used to form an image of a sample. The output coherent wave is temporally divided into a plurality of wavelets. The spatial phase of each wavelet is then modulated a known and different amount. Each phase modulated wavelet illuminates the sample and is perturbed by its interaction with the sample. A spatial phase map of each perturbed wavelet is then created and converted to a sample image with an image reconstruction program. The plurality of sample images thus formed is statistically averaged to form a final averaged image. The high frequency speckle that is not optically resolvable tends to average to zero with continual statistical averaging, leaving only the optically resolvable lower frequency phase information.
摘要翻译： 相干辐射成像系统，产生数量少的斑点数字图像。 来自长相干长度源的辐射用于形成样品的图像。 输出相干波在时间上分为多个小波。 然后将每个小波的空间相位调制为已知且不同的量。 每个相位调制小波照亮样品，并受到与样品的相互作用的干扰。 然后创建每个扰动小波的空间相位图，并将其转换为具有图像重建程序的样本图像。 如此形成的多个样本图像被统计学地平均以形成最终平均图像。 不能光学解析的高频散斑趋向于平均为零，并且连续的统计平均，仅留下光学可分辨的较低频率相位信息。
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公开(公告)号：US20050167595A1
公开(公告)日：2005-08-04
申请号：US10983053
申请日：2004-11-05
申请人： David Prelewitz , Robert Gray , Rolf Gerchberg , Michael Weiner
发明人： David Prelewitz , Robert Gray , Rolf Gerchberg , Michael Weiner
CPC分类号： G02B27/48
摘要： A coherent radiation imaging system that produces digital images with a reduced amount of speckle. Radiation from a long coherence length source is used to form an image of a sample. The output coherent wave is temporally divided into a plurality of wavelets. The spatial phase of each wavelet is then modulated a known and different amount. Each phase modulated wavelet illuminates the sample and is perturbed by its interaction with the sample. A spatial phase map of each perturbed wavelet is then created and converted to a sample image with an image reconstruction program. The plurality of sample images thus formed is statistically averaged to form a final averaged image. The high frequency speckle that is not optically resolvable tends to average to zero with continual statistical averaging, leaving only the optically resolvable lower frequency phase information.
摘要翻译： 相干辐射成像系统，产生数量少的斑点数字图像。 来自长相干长度源的辐射用于形成样品的图像。 输出相干波在时间上分为多个小波。 然后将每个小波的空间相位调制为已知且不同的量。 每个相位调制小波照亮样品，并受到与样品的相互作用的干扰。 然后创建每个扰动小波的空间相位图，并将其转换为具有图像重建程序的样本图像。 如此形成的多个样本图像被统计学地平均以形成最终平均图像。 不能光学解析的高频散斑趋向于平均为零，并且连续的统计平均，仅留下光学可分辨的较低频率相位信息。
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