-
21.发明申请公开(公告)号：US20090045994A1
公开(公告)日：2009-02-19
申请号：US12192369
申请日：2008-08-15
申请人： Michael DRUMMY , Andrew THOMAS , Denys LAQUERRE , David LAROCHELLE , Pierre LANGLOIS , Steven BESSER
发明人： Michael DRUMMY , Andrew THOMAS , Denys LAQUERRE , David LAROCHELLE , Pierre LANGLOIS , Steven BESSER
IPC分类号： H03M1/12
CPC分类号： G01R19/2509 , G01N29/262 , G01N29/44
摘要： A multiple mode digitization system for a non-destructive inspection instrument which makes use of a multiplexing circuit and a single set of analog to digital converters to efficiently digitize analog test signals from a plurality of inputs. In the preferred embodiment, each of the analog to digital converters in the system is driven with an independent and separate clock signal, allowing for propagation delay compensation among the plurality of test signals as well as interleaved sampling such that custom sampling rates can be used for each input without the need for more than one clock frequency. In an alternate embodiment, phase adjustments on the sampling clocks are used only for interleave sampling, and digital filters are used to provide signal propagation delay compensation.
摘要翻译： 一种用于非破坏性检查仪器的多模式数字化系统，其利用多路复用电路和单组模数转换器来有效地数字化来自多个输入的模拟测试信号。 在优选实施例中，系统中的每个模数转换器都用独立和分离的时钟信号驱动，允许多个测试信号之间的传播延迟补偿以及交错采样，使得定制采样速率可用于 每个输入不需要多于一个时钟频率。 在替代实施例中，采样时钟上的相位调整仅用于交织采样，并且使用数字滤波器来提供信号传播延迟补偿。
-
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：US06657573B2
公开(公告)日：2003-12-02
申请号：US10217482
申请日：2002-08-14
IPC分类号： H03M166
摘要： A phase-to-sinusoid-amplitude conversion system and method for use in, for example, direct digital frequency synthesizer applications. The system and method convert phase data to signal amplitude data using an approximation of the first quadrant of a sine function using a plurality of linear line segments of preferably equal length. Each segment is defined with a lower horizontal-axis bound; a lower vertical-axis bound; and a slope represented as a sum of a plurality of slope elements. Based on the approximation and for a given phase angle a set of values are evaluated, for each linear line segment, representing a product of (i) a horizontal displacement representing a difference between the prescribed phase angle and the lower horizontal-axis bound xi of a selected linear line segment where, for example, xi
摘要翻译： 一种用于例如直接数字频率合成器应用的相位到正弦振幅转换系统和方法。 该系统和方法使用优选相等长度的多个线性线段，使用正弦函数的第一象限的近似将相位数据转换为信号幅度数据。 每个段被定义为具有较低的水平轴线; 下垂直轴线; 以及表示为多个斜率元素的和的斜率。 基于近似值，对于给定的相位角，对于每个线性线段，对一组值进行评估，其表示（i）表示规定相位角和规定相位角与下方横轴界限xi之间的差的积的乘积 选择的线性线段，其中例如xi
-
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。
-
25.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。
-
公开(公告)号：US06347450B1
公开(公告)日：2002-02-19
申请号：US09507731
申请日：2000-02-22
申请人： Pierre Langlois , Gilbert Langlois
发明人： Pierre Langlois , Gilbert Langlois
IPC分类号： B23P1900
CPC分类号： B25B27/10 , H01R9/0518 , H01R43/015 , Y10T29/49174 , Y10T29/53209 , Y10T29/53213 , Y10T29/53222
摘要： The tool is for facilitating installation of a conventional cable connector to the end section of a conventional coaxial cable. The tool has a permanently T-shaped handle defining a handle grasping segment and a handle spacing segment integrally attached to the handle grasping segment at a right angle thereto. A tool fastening sleeve is attached to the handle spacing segment. The tool fastening sleeve has an external thread adapted to engage to the internal thread of the fastening sleeve which is part of the conventional cable connector. The tool fastening sleeve also has a tool fastening sleeve channel for receiving a segment of the inner conductor extending through the conductor fastening sleeve and protruding from the proximal edge of the connector fastening sleeve. The tool is adapted to be releasably secured to the conventional cable connector and used to ergonomically push the latter within the end section of the cable. Once the cable connector is secured to the cable, the tool is threadingly disengaged from the connector.
摘要翻译： 该工具用于便于将常规电缆连接器安装到传统同轴电缆的端部。 工具具有永久的T形手柄，其限定把手抓握部分和手柄间隔部分以与其成直角的方式一体地附接到手柄抓握部分。 工具紧固套筒连接到把手间隔部分。 工具紧固套筒具有适于与作为常规电缆连接器的一部分的紧固套筒的内螺纹接合的外螺纹。 工具紧固套筒还具有工具紧固套筒通道，用于接收延伸穿过导体紧固套筒并从连接器紧固套筒的近侧边缘突出的内部导体的一段。 该工具适于可释放地固定到传统的电缆连接器，并用于人体工程学地将其推入电缆的端部。 一旦电缆连接器固定在电缆上，工具就会从连接器上脱线。
-
27.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。
-
公开(公告)号：USD386873S
公开(公告)日：1997-11-25
申请号：US44723
申请日：1995-09-15
-
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。
-
-
-
-
-
-
-
-
搜索结果
29 条记录 (耗时 0.015 秒)
