公开(公告)号：US4435631A

公开(公告)日：1984-03-06

申请号：US331242

申请日：1981-12-15

Applicant: Michel G. Drouet ,  Francois Nadeau

Inventor： Michel G. Drouet ,  Francois Nadeau

IPC: B23K9/095 ,  B23K9/06 ,  B23K9/073 ,  B23K9/10 ,  B23K9/12 ,  B23K9/127 ,  F27B3/08 ,  F27D11/08 ,  F27D11/10 ,  H05B7/00 ,  H05B7/144 ,  H05B7/148

CPC classification number: B23K9/0735 ,  H05B7/144 ,  Y02P10/256 ,  Y02P10/259

Abstract: In accordance with the method, the arc supplying current is modulated if necessary for generating an acoustical signal. The acoustical signal generated by the arc is detected and its amplitude which, in practice, is a direct function of the actual length of the arc, is compared to a reference amplitude corresponding to the desired length of the electrical arc, in order to determine the algebraic value of their difference. This algebraic value is used for monitoring at least one element of the machine between which the arc forms, and moving this element proportionally to the so-determined algebraic value in order to increase or reduce the actual length of the arc and to bring this length back to the desired length.

Abstract translation: 根据该方法，如果需要产生声音信号，则调制电弧供应电流。 检测由电弧产生的声音信号，其实际上是电弧的实际长度的直接函数的振幅与对应于电弧的期望长度的参考振幅进行比较，以便确定 代数值的差异。 该代数值用于监视电弧形成之间的机器的至少一个元件，并将该元素按比例移动到所确定的代数值，以便增加或减少电弧的实际长度并将该长度返回 达到所需长度。

公开(公告)号：US4733051A

公开(公告)日：1988-03-22

申请号：US89128

申请日：1987-08-25

Applicant: Francois Nadeau ,  Pierre Fafard ,  Guy Patenaude ,  Jean Tremblay

Inventor： Francois Nadeau ,  Pierre Fafard ,  Guy Patenaude ,  Jean Tremblay

IPC: B23K9/095 ,  B23K9/12

CPC classification number: B23K9/0956

Abstract: The invention is concerned with controlling weldpool penetration during root pass welding in an open butt joint defined in a workpiece to be welded by a welding torch with a welding wire being continuously fed from the welding torch to the joint to form a weldpool penetrating the joint, the workpiece and welding torch being movable relative to one another. A visual sensor is positioned ahead of the welding torch and in alignment with the joint for frontly viewing the weldpool at an angle of about 10.degree. to about 20.degree. relative to a line tangent to the workpiece at the weldpool, to thereby provide a full image of the weldpool defining a weldpool contour line, the sensor and welding torch being disposed on a common side relative to the workpiece. The weldpool image is then processed through a computer including image processor operatively coupled to controller, the image processor analyzing the weldpool contour line to derive therefrom weldpool penetration depth and comparing the weldpool penetration depth with a predetermined value, to thereby provide an information signal representative of weldpool penetration error which is fed to the controller, the controller issuing control signals in response to the information signal for controlling welding parameters such as to provide a root pass weld having a predetermined penetration.

Abstract translation: 本发明涉及在通过焊枪定义在待焊接工件中的开口对接接头中控制熔焊穿透，其中焊丝从焊炬连续地供给到接头以形成穿透接头的焊缝， 工件和焊炬可相对于彼此移动。 视觉传感器位于焊炬之前并且与接头对准，以相对于在焊缝处与工件相切的线大约10°至大约20°的角度观察焊缝，从而提供完整的图像 所述焊缝定义焊缝轮廓线，所述传感器和焊炬设置在相对于所述工件的公共侧上。 然后通过包括可操作地耦合到控制器的图像处理器的计算机处理焊接图像，图像处理器分析焊缝轮廓线，从而导出熔池穿透深度并将焊接穿透深度与预定值进行比较，从而提供代表 焊接穿透误差，其被馈送到控制器，控制器响应于用于控制焊接参数的信息信号发出控制信号，以提供具有预定穿透力的根部焊缝。

公开(公告)号：US4534219A

公开(公告)日：1985-08-13

申请号：US552973

申请日：1983-11-17

Applicant: Francois Nadeau ,  Jean F. Bussiere ,  Ghislain Vaudreuil

Inventor： Francois Nadeau ,  Jean F. Bussiere ,  Ghislain Vaudreuil

IPC: G01N29/04

CPC classification number: G01N29/045

Abstract: An acoustic crack detection method and device in which an impact is produced between an actually tested metal piece and an anvil. This impact generates an acoustic wave formed of a plurality of components, one of these wave components being produced by vibrations of the metal piece and having a frequency indicating a cracked or uncracked state of this piece. A microphone senses the acoustic wave generated by the impact and a measuring circuit receives the signal from the microphone for measuring the energy, within a predetermined time gate and within a predetermined frequency bandwidth, of the wave component of interest. The measured energy is compared with a reference level in order to determine if the actually tested metal piece is cracked or not. Of course, the anvil is designed so that its vibrations produced by the impact generate no wave component at a frequency included within the predetermined frequency bandwidth, whereby the crack detection is not disturbed by any acoustic wave component generated by the anvil. The detecting device may be used in an apparatus for sorting cracked and uncracked metal pieces.

Abstract translation: 一种声学裂纹检测方法和装置，其中在实际测试的金属片和砧座之间产生冲击。 这种冲击产生由多个部件形成的声波，这些波形分量中的一个由金属片的振动产生并且具有表示该部件的裂纹或未破裂状态的频率。 麦克风感测由冲击产生的声波，并且测量电路接收来自麦克风的信号，以在预定时间门内并且在预定频率带宽内测量感兴趣的波分量的能量。 将测量的能量与参考水平进行比较，以确定实际测试的金属片是否破裂。 当然，砧座被设计成使得其由冲击产生的振动在包含在预定频率带宽内的频率处不产生波分量，从而裂纹检测不被砧产生的任何声波分量干扰。 该检测装置可用于分类破裂和未破裂的金属片的装置中。

公开(公告)号：US20060246213A1

公开(公告)日：2006-11-02

申请号：US11380696

申请日：2006-04-28

Applicant: Christian Moreau ,  Mario Lamontagne ,  Francois Nadeau ,  Jacques Blain ,  Luc Pouliot ,  Alexandre Nadeau ,  Simon Berube

Inventor： Christian Moreau ,  Mario Lamontagne ,  Francois Nadeau ,  Jacques Blain ,  Luc Pouliot ,  Alexandre Nadeau ,  Simon Berube

IPC: B05D1/02 ,  B05C11/00

CPC classification number: G01B11/0616 ,  B05B7/22 ,  B05B13/0442 ,  C23C4/12 ,  C23C24/04 ,  G01B11/2513

Abstract: In a method of measuring the thickness of a coating as it is applied to a substrate, wherein the coating is applied as a thin ribbon from a spray gun, at least one surface profile of the applied coating is obtained along a line intersecting the ribbon during relative movement of the substrate and spray gun. The thickness of the applied coating is computed from the obtained surface profile.

Abstract translation: 在测量涂层施加到基底上的涂层的厚度的方法中，其中涂层作为薄带从喷枪施加，所施加的涂层的至少一个表面轮廓沿着与色带相交的线获得， 基体和喷枪的相对运动。 所涂覆的涂层的厚度由所获得的表面轮廓计算。

公开(公告)号：US07758910B2

公开(公告)日：2010-07-20

申请号：US11380696

申请日：2006-04-28

Applicant: Christian Moreau ,  Mario Lamontagne ,  Francois Nadeau ,  Jacques Blain ,  Luc Pouliot ,  Alexandre Nadeau ,  Simon Alex Berube

Inventor： Christian Moreau ,  Mario Lamontagne ,  Francois Nadeau ,  Jacques Blain ,  Luc Pouliot ,  Alexandre Nadeau ,  Simon Alex Berube

IPC: B05D1/02 ,  B29C41/52 ,  B05C11/00

CPC classification number: G01B11/0616 ,  B05B7/22 ,  B05B13/0442 ,  C23C4/12 ,  C23C24/04 ,  G01B11/2513

Abstract: In a method of measuring the thickness of a coating as it is applied to a substrate, wherein the coating is applied as a thin ribbon from a spray gun, at least one surface profile of the applied coating is obtained along a line intersecting the ribbon during relative movement of the substrate and spray gun. The thickness of the applied coating is computed from the obtained surface profile.

Abstract translation: 在测量涂层施加到基底上的涂层的厚度的方法中，其中涂层作为薄带从喷枪施加，所施加的涂层的至少一个表面轮廓沿着与色带相交的线获得， 基体和喷枪的相对运动。 所涂覆的涂层的厚度由所获得的表面轮廓计算。

公开(公告)号：US20090210168A1

公开(公告)日：2009-08-20

申请号：US12438979

申请日：2007-08-31

Applicant: André Vincelette ,  Paul Lefebvre ,  Jean-Francois Nadeau

Inventor： André Vincelette ,  Paul Lefebvre ,  Jean-Francois Nadeau

IPC: G06F19/00 ,  G02B6/00 ,  G06F15/00 ,  G01K1/00

CPC classification number: E21B47/065 ,  E21B47/06 ,  G01D5/35303 ,  G01N21/774

Abstract: A signal processing apparatus which has an input for receiving a signal conveying a response from first and second optical components to an optical excitation. The first and second optical components are in an optical sensor which is intended to be placed in a sensing zone. The sensing zone contains hydrogen susceptible to migrate into the optical sensor. The signal processing apparatus has a processing entity for processing the response from the first and second optical components to derive information on hydrogen concentration in the optical sensor.

Abstract translation: 一种信号处理装置，具有用于接收从第一和第二光学部件传送到光学激发的响应的信号的输入。 第一和第二光学部件位于旨在放置在感测区域中的光学传感器中。 感测区域含有容易迁移到光学传感器中的氢。 信号处理装置具有用于处理来自第一和第二光学部件的响应的处理实体，以得到关于光学传感器中的氢浓度的信息。

公开(公告)号：US4811605A

公开(公告)日：1989-03-14

申请号：US162071

申请日：1988-02-29

Applicant: Francois Nadeau ,  Michael T. Braeuel

Inventor： Francois Nadeau ,  Michael T. Braeuel

IPC: G01N29/14 ,  G01N29/00

CPC classification number: G01N29/14

Abstract: The present disclosure describes an apparatus and a method for inspecting the degradation of a gas nozzle. The nozzle is of the type that can produce a whistle when a gas is blown through the nozzle. The method comprises the steps of detecting an acoustic signal emitted by the nozzle when the gas is blown through the nozzle, the gas having a pressure selected to produce an acoustic resonance at a certain frequency; generating an electrical signal responsive to the detected acoustic signal; band pass filtering the electrical signal at the frequency; and detecting the amplitude of the electrical signal at the frequency. The method also comprises the steps of comparing the amplitude of the electrical signal with a reference amplitude corresponding to a reference nozzle; and displaying a signal indicative of the degradation of the nozzle according to the signal resulting from the comparing step.

Abstract translation: 本公开描述了用于检查气体喷嘴的劣化的装置和方法。 喷嘴是当气体吹过喷嘴时可以产生哨子的类型。 该方法包括以下步骤：当气体吹过喷嘴时检测由喷嘴发出的声信号，该气体具有选定的压力以产生一定频率的声共振; 响应于检测到的声信号产生电信号; 以频率对电信号进行带通滤波; 并检测频率处的电信号的振幅。 该方法还包括以下步骤：将电信号的幅度与对应于参考喷嘴的参考幅度进行比较; 以及根据由比较步骤得到的信号显示表示喷嘴劣化的信号。