-
公开(公告)号：US5323267A
公开(公告)日：1994-06-21
申请号：US815960
申请日：1992-01-02
申请人： Pierre Galarneau , Pierre Langlois , Michel Belanger , Julie Frechette , Jean-Marie Trudeau , Marie Cote
发明人： Pierre Galarneau , Pierre Langlois , Michel Belanger , Julie Frechette , Jean-Marie Trudeau , Marie Cote
CPC分类号： G02B27/1093 , G01J1/4257 , G02B27/1006 , G02B27/108 , G02B27/1086 , G02B5/1871 , H01S3/0014
摘要： A beam sampler comprises a substrate made of highly transparent fused silica or zinc selenide, both capable of sustaining high power laser beams. The substrate defines an outer surface through which the light beam being sampled propagates. A sinusoidal diffracting relief is etched on this outer surface directly into the light-propagating material of the substrate. When a light beam propagates through the outer surface of the substrate, the three-dimensional diffracting relief extracts from this light beam at least one pair of low power beam samples.
摘要翻译： 光束取样器包括由高透明度的熔融石英或硒化锌制成的基板，两者都能够维持高功率的激光束。 衬底限定外部表面，被采样的光束通过该外表面传播。 在该外表面上直接蚀刻到基板的光传播材料中的正弦衍射浮雕。 当光束传播通过衬底的外表面时，三维衍射浮雕从该光束提取至少一对低功率光束样本。
-
2.发明授权
公开(公告)号：US5748814A
公开(公告)日：1998-05-05
申请号：US558372
申请日：1995-11-16
CPC分类号： G02B6/02138 , G02B6/02085 , G02B6/02152
摘要： A method for spatially controlling the period and amplitude of Bragg filters in an optical medium having a longitudinal axis that is sensitive to at least some wavelength of electromagnetic radiation. A phase mask of period .LAMBDA. is laid close to the optical medium at an angle .alpha. with respect to the longitudinal axis of the optical medium. A single beam of electromagnetic radiation is directed at an incidence angle .phi. with respect to normal incidence on the phase mask so that the radiation is diffracted, resulting in an interference pattern having a period P impinged into the optical medium so that the period P of the interference pattern may be altered by changing the incidence angle .phi. or the angle .alpha. . This method is simpler, more flexible and more suitable for mass production than existing methods.
摘要翻译： 一种在具有对至少某一波长的电磁辐射敏感的纵向轴的光学介质中空间控制布拉格滤波器的周期和幅度的方法。 周期LAMBDA的相位掩模以相对于光学介质的纵向轴线成α角的方式放置在光学介质附近。 单个电磁辐射束相对于相位掩模上的法向入射指向入射角度φ，使得辐射被衍射，导致具有入射到光学介质中的周期P的干涉图案，使得 可以通过改变入射角phi或角度α来改变干涉图案。 该方法比现有方法更简单，更灵活，更适合批量生产。
-
3.发明授权
公开(公告)号：US5903689A
公开(公告)日：1999-05-11
申请号：US942666
申请日：1997-10-02
IPC分类号： G02B6/34
CPC分类号： G02B6/02138 , G02B6/02085 , G02B6/02152
摘要： A method for spatially controlling the period and amplitude of Bragg filters in an optical medium having a longitudinal axis that is sensitive to at least some wavelength of electromagnetic radiation. A phase mask of period .LAMBDA. is laid close to the optical medium at an angle .alpha. with respect to the longitudinal axis of the optical medium. A single beam of electromagnetic radiation is directed at an incidence angle .phi. with respect to normal incidence on the phase mask so that the radiation is diffracted, resulting in an interference pattern having a period P impinged into the optical medium so that the period P of the interference pattern may be altered by changing the incidence angle .phi. or the angle .alpha.. This method is simpler, more flexible and more suitable for mass production than existing methods.
摘要翻译： 一种在具有对至少某一波长的电磁辐射敏感的纵向轴的光学介质中空间控制布拉格滤波器的周期和幅度的方法。 周期LAMBDA的相位掩模以相对于光学介质的纵向轴线成α角的方式放置在光学介质附近。 单个电磁辐射束相对于相位掩模上的法向入射指向入射角度φ，使得辐射被衍射，导致具有入射到光学介质中的周期P的干涉图案，使得 可以通过改变入射角phi或角度α来改变干涉图案。 该方法比现有方法更简单，更灵活，更适合批量生产。
-
公开(公告)号：US20180113100A1
公开(公告)日：2018-04-26
申请号：US15333367
申请日：2016-10-25
CPC分类号： G01B17/06 , G01N29/11 , G01N29/262 , G01N29/4463 , G01N29/4472 , G01N2291/0289 , G01N2291/044 , G01N2291/267
摘要： Disclosed is an assisted analysis unit for facilitating phased array defect inspection. The analysis unit comprises an identification & merging module, and a sizing module. The modules are capable of displaying defect contours from multiple groups of indications, and of recommending defect merging candidates and defect sizing methods. However both modules also accept user input so that the final decisions rest with the operator.
-
公开(公告)号：US20080314153A1
公开(公告)日：2008-12-25
申请号：US12176642
申请日：2008-07-21
IPC分类号： G01N29/04
CPC分类号： G01N29/069 , G01N29/262 , G01N29/341 , G01N2291/044 , G01N2291/106
摘要： The present invention relates to a flaw detector imaging apparatus for detecting and visualizing a flaw in a target material to be investigated, comprising an ultrasonic phase-array probe comprising an array of ultrasonic transducers and a flaw detector. The flaw detector includes at least one trigger channel to trigger ultrasonic emitting transducers of the array at respective time delays to produce an ultrasonic beam propagating through the target material, and a single receiver channel to receive echo signals produced by ultrasonic receiving transducers of the array in response to ultrasonic wave echoes reflected from a flaw in the target material. The single receiver channel comprises a delay circuit imparting to the received echo signals the respective time delays as used in the triggering of the ultrasonic emitting transducers and a combiner of the delayed echo signals. A processor is responsive to the echo signals produced by the ultrasonic receiving transducers, received by the single receiver channel and time delayed by the delay circuit to produce an image of the flaw from which the ultrasonic wave echoes are reflected. A display connected to the ultrasonic processor displays the image of the flaw.
摘要翻译： 本发明涉及一种用于检测和可视化待研究的目标材料中的缺陷的探伤仪成像装置，包括超声波相位阵列探针，其包括超声换能器阵列和探伤仪。 所述探伤器包括至少一个触发通道，用于以相应的时间延迟触发所述阵列的超声波发射换能器，以产生通过所述目标材料传播的超声波束;以及单个接收器通道，用于接收由阵列的超声波接收换能器产生的回波信号 响应于从目标材料中的缺陷反射的超声波回波。 单个接收器通道包括延迟电路，用于将所接收的回波信号赋予用于超声发射换能器的触发和延迟的回波信号的组合器中使用的各自的时间延迟。 处理器响应由超声接收换能器产生的回波信号，由单个接收器通道接收并由延迟电路延迟的时间产生出超声波回波从该反射的缺陷的图像。 连接到超声波处理器的显示器显示缺陷的图像。
-
公开(公告)号：US4540844A
公开(公告)日：1985-09-10
申请号：US594356
申请日：1984-03-28
申请人： Michel Sautereau , Roger Nicod , Pierre Langlois
发明人： Michel Sautereau , Roger Nicod , Pierre Langlois
IPC分类号： H02G13/00
摘要： In this device a point (100) is brought to a high tension potential by a generator (300). The grounding in case of lightning is effected by a rod (210) brought to the potential of the earth. A spark-gap device is constituted by the base (120) of the point and a crown (240) connected to the rod (210). According to the invention, to protect the dielectric interval of this spark gap, the base of the point is extended downwardly by a flared skirt (130) that covers the crown (240), at least partially, the visible portion (231) of the insulating sheath (230) is hollowed so as to remove its surface (232) from the armatures of the spark gap and there is given to the interior of the skirt (130) a surface condition that makes it possible to avoid any punctual deformation of the electric field.
摘要翻译： 在该装置中，点（100）被发电机（300）带到高张力。 在闪电的情况下的接地是通过带到地球电位的杆（210）来实现的。 火花间隙装置由点的底座（120）和连接到杆（210）的冠部（240）构成。 根据本发明，为了保护该火花间隙的电介质间隔，点的底部通过覆盖冠部（240）的扩口裙部（130）向下延伸，至少部分地覆盖冠部的可见部分（231） 绝缘护套（230）是中空的，从而从火花间隙的电枢上除去其表面（232），并且给予裙部（130）内部的表面状态，使得可以避免 电场。
-
公开(公告)号：US20110100089A1
公开(公告)日：2011-05-05
申请号：US12981228
申请日：2010-12-29
申请人： Pierre Langlois , Michael Drummy
发明人： Pierre Langlois , Michael Drummy
CPC分类号： G01N29/262 , G01N29/0609 , G01N29/0645 , G01N2291/02491 , G01N2291/044 , G01N2291/106 , G10K11/346
摘要： The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.
-
公开(公告)号：US20060254359A1
公开(公告)日：2006-11-16
申请号：US11332912
申请日：2006-01-17
IPC分类号： G01N29/04
CPC分类号： G01N29/341 , G01N29/0609 , G01N29/0645 , G01N29/262 , G01N2291/044 , G01N2291/106
摘要： The present invention relates to a flaw detector imaging apparatus for detecting and visualizing a flaw in a target material to be investigated, comprising an ultrasonic phase-array probe comprising an array of ultrasonic transducers and a flaw detector. The flaw detector includes at least one trigger channel to trigger ultrasonic emitting transducers of the array at respective time delays to produce an ultrasonic beam propagating through the target material, and at least one receiver channel to receive echo signals produced by ultrasonic receiving transducers of the array in response to ultrasonic wave echoes reflected from a flaw in the target material. The receiver channel comprises a delay circuit imparting to the received echo signals the respective time delays as used in the triggering of the ultrasonic emitting transducers and a combiner of the delayed echo signals. A processor is responsive to the echo signals produced by the ultrasonic receiving transducers, received by the receiver channel and time delayed by the delay circuit to produce an image of the flaw from which the ultrasonic wave echoes are reflected. A display connected to the ultrasonic processor displays the image of the flaw.
摘要翻译： 本发明涉及一种用于检测和可视化待研究的目标材料中的缺陷的探伤仪成像装置，包括超声波相位阵列探针，其包括超声换能器阵列和探伤仪。 所述探伤器包括至少一个触发通道，用于以相应的时间延迟触发阵列的超声波发射换能器，以产生传播通过目标材料的超声波束;以及至少一个接收器通道，用于接收由阵列的超声波接收换能器产生的回波信号 响应于从目标材料中的缺陷反射的超声波回波。 接收器通道包括延迟电路，用于在触发超声发射换能器时使用的相应时间延迟和延迟的回波信号的组合器对接收到的回波信号。 处理器响应由超声波接收换能器产生的回波信号，由接收器通道接收并由延迟电路延迟的时间产生出超声波回波从其反射的缺陷的图像。 连接到超声波处理器的显示器显示缺陷的图像。
-
公开(公告)号：US5784182A
公开(公告)日：1998-07-21
申请号：US780419
申请日：1997-01-08
CPC分类号： G02B27/32 , F41G1/467 , G03H1/0005 , G03H1/2249 , G03H2001/2234 , G03H2001/2284 , G03H2001/261 , G03H2227/02 , G03H2227/06
摘要： The sight comprises a support adapted for mounting onto an instrument to be aimed at a target, an optical device mounted onto the support for creating an image including a first sighting mark at a first finite distance with respect to the optical device, and a device mounted on to the support for providing a second sighting mark at a finite distance with respect to the first sighting mark. The instrument is aimed at the target by aligning the sighting marks. Since at least the first sighting mark is an image, its position can be chosen to improve the accuracy of aiming by alignment of the marks without having to physically accommodate the first mark.
摘要翻译： 瞄准器包括适于安装在瞄准目标的仪器上的支撑件，安装在支撑件上的光学装置，用于产生包括相对于光学装置的第一有限距离的第一瞄准标记的图像，以及安装 支持在相对于第一瞄准标记的有限距离处提供第二瞄准标记。 仪器通过对准瞄准器瞄准目标。 由于至少第一瞄准标记是图像，因此可以选择其位置以通过对准标记来提高瞄准精度，而不必物理地容纳第一标记。
-
10.发明授权Detection of channel saturation in phase-array ultrasonic non-destructive testing 有权相位超声波无损检测中的通道饱和度检测公开(公告)号：US07958769B2
公开(公告)日：2011-06-14
申请号：US11354221
申请日：2006-02-14
申请人： Pierre Langlois , Michael Drummy
发明人： Pierre Langlois , Michael Drummy
CPC分类号： G01N29/262 , G01N29/0609 , G01N29/0645 , G01N2291/02491 , G01N2291/044 , G01N2291/106 , G10K11/346
摘要： The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.
摘要翻译： 本发明涉及一种检测包括一组换能器和至少一个接收器通道部分的测量装置的非线性操作的方法。 该方法包括通过阵列的换能器接收测量信号，通过接收器通道部分处理来自换能器的测量信号，组合经处理的测量信号以产生组合的测量信号，以及检测组合测量信号和非组合测量信号的非线性， 通过检测接收机通道部分的饱和度来测量设备的线性操作。 在一个实施例中，接收器通道部分包括模数转换器，阈值被分配给模数转换器的数字输出，并且当模拟数字输出的数字输出被检测到接收器通道部分的饱和 数字转换器超过分配的阈值。 在本发明的一个应用中，测量装置是无损检测装置。
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.026 秒)
