公开(公告)号：WO2009123799A1

公开(公告)日：2009-10-08

申请号：PCT/US2009/034385

申请日：2009-02-18

Applicant: GENERAL ELECTRIC COMPANY ,  RINGERMACHER, Harry, Israel ,  HOWARD, Donald, Robert ,  KNIGHT, Bryon, Edward ,  PATTERSON, William, George ,  BANTEL, Thomas, Edward

Inventor： RINGERMACHER, Harry, Israel ,  HOWARD, Donald, Robert ,  KNIGHT, Bryon, Edward ,  PATTERSON, William, George ,  BANTEL, Thomas, Edward

IPC: G01N25/72 ,  G01N21/88

CPC classification number: G01N25/72

Abstract: A method for identifying types of flaws in a composite object includes: a) rapidly heating the surface of the object; b) recording pixel intensities in a sequence of IR images; c) determining temperature-versus-time data for each of the pixels from the IR images; and d) determining what type of flaw if any corresponds to each of the pixels using the temperature-versus-time data determined in step (c). A contrast curve derived from the temperature-versus-time data may be used in determining what type of flaws if any corresponds to each of the pixels. The contrast curve may be determined by subtracting a synthetic reference curve from a temperature time curve from the temperature-versus-time data. The types of flaws may be determined from size and/or shapes of peaks in the contrast curves. Some flaws are delaminations, layers of porosity, and uniformly distributed porosity.

Abstract translation: 用于识别复合物体中的缺陷类型的方法包括：a）快速加热物体的表面; b）记录IR图像序列中的像素强度; c）从IR图像确定每个像素的温度 - 时间数据; 以及d）使用步骤（c）中确定的温度 - 时间数据来确定任何类型的缺陷是否对应于每个像素。 从温度 - 时间数据导出的对比曲线可以用于确定如果任何对应于每个像素的什么类型的缺陷。 对比度曲线可以通过从温度 - 时间数据的温度时间曲线中减去合成参考曲线来确定。 缺陷的类型可以根据对比度曲线中的峰的大小和/或形状来确定。 一些缺陷是分层，多孔层，均匀分布的孔隙度。

公开(公告)号：WO2009073014A1

公开(公告)日：2009-06-11

申请号：PCT/US2007/025228

申请日：2007-12-06

Applicant: LOCKHEED MARTIN CORPORATION ,  LORRAINE, Peter, William ,  HOWARD, Donald, Robert ,  RINGERMACHER, Henry, Israel ,  DUBOIS, Marc ,  DRAKE, Peter, William

Inventor： LORRAINE, Peter, William ,  HOWARD, Donald, Robert ,  RINGERMACHER, Henry, Israel ,  DUBOIS, Marc ,  DRAKE, Peter, William

IPC: G01N21/17 ,  G01N21/88 ,  G01N25/72 ,  G01N29/24

CPC classification number: G01N21/1717 ,  G01N21/1702 ,  G01N21/718 ,  G01N21/8851 ,  G01N25/72 ,  G01N29/228 ,  G01N29/2418 ,  G01N2021/1706 ,  G01N2021/8472 ,  G01N2201/0697 ,  G01N2291/0231

Abstract: An inspection system (200) is provided to examine internal structures of a target material (216). This inspection system includes a generation laser (210), an ultrasonic detection system (220, 226, 228, 230), a thermal imaging system (234), and a processor/control module (232). The generation laser (210) produces a pulsed laser beam (212) that is operable to induce ultrasonic displacements and thermal transients at the target material (216). The ultrasonic detection system detects ultrasonic surface displacements at the target material (216). The thermal imaging system (234) detects thermal transients at the target material (216). The processor (232) analyzes both detected ultrasonic displacements and thermal imagery of the target material (216) to yield information about the target material's internal structure. The target material (216) preferably comprises composite material.

Abstract translation: 提供检查系统（200）以检查目标材料（216）的内部结构。 该检查系统包括生成激光器（210），超声波检测系统（220,226,228,230），热成像系统（234）和处理器/控制模块（232）。 产生激光器（210）产生脉冲激光束（212），其可操作以在目标材料（216）处诱导超声位移和热瞬变。 超声波检测系统检测目标材料（216）的超声表面位移。 热成像系统（234）检测目标材料（216）处的热瞬态。 处理器（232）分析检测到的超声波位移和目标材料（216）的热图像，以产生关于目标材料的内部结构的信息。 目标材料（216）优选包括复合材料。

公开(公告)号：WO2009035445A1

公开(公告)日：2009-03-19

申请号：PCT/US2007/025229

申请日：2007-12-06

Applicant: LOCKHEED MARTIN CORPORATION ,  HOWARD, Donald, Robert ,  RINGERMACHER, Harry, Israel ,  DUBOIS, Marc ,  RICHTER, Timothy, Gerrard ,  DRAKE, Thomas, E.

Inventor： HOWARD, Donald, Robert ,  RINGERMACHER, Harry, Israel ,  DUBOIS, Marc ,  RICHTER, Timothy, Gerrard ,  DRAKE, Thomas, E.

IPC: G01N29/22 ,  G01N29/24 ,  G01N25/72

CPC classification number: G01N29/2418 ,  G01N25/72 ,  G01N29/228 ,  G01N2291/0231 ,  G01N2291/02881

Abstract: An inspection system is provided to examine internal structures of a target material. This inspection system combines an ultrasonic inspection system and a thermographic inspection system. The thermographic inspection system is attached to ultrasonic inspection and modified to enable thermographic inspection of target materials at distances compatible with laser ultrasonic inspection. Quantitative information is obtained using depth infrared (IR) imaging on the target material. The IR imaging and laser-ultrasound results are combined and projected on a 3D projection of complex shape composites. The thermographic results complement the laser-ultrasound results and yield information about the target material's internal structure that is more complete and more reliable, especially when the target materials are thin composite parts.

Abstract translation: 提供检查系统来检查目标材料的内部结构。 该检测系统结合了超声波检测系统和热成像检测系统。 热成像检测系统连接超声波检查，并进行了修改，以便在与激光超声波检测相匹配的距离内对目标材料进行热成像检测。 使用目标材料上的深度红外（IR）成像获得定量信息。 将IR成像和激光超声结果组合并投影在复杂形状复合材料的3D投影上。 热成像结果补充了激光超声结果，并产生了关于目标材料的内部结构的更完整和更可靠的信息，特别是当目标材料是薄的复合部件时。