Infrared defect detection via broad-band acoustics
    2.
    发明授权
    Infrared defect detection via broad-band acoustics 有权
    通过宽带声学进行红外缺陷检测

    公开(公告)号:US07064330B2

    公开(公告)日:2006-06-20

    申请号:US10426399

    申请日:2003-04-30

    IPC分类号: G01J5/02

    摘要: A method of detecting defects in structures, comprising the steps of inducing mechanical energy in a structure via the emission of a broad-band acoustic signal, and capturing over a time interval a plurality of images of the structure each of the plurality of images comprised of a plurality of pixels arranged in a plurality of rows and columns each indicative of an intensity of infrared energy emitted by a portion of the structure.

    摘要翻译: 一种检测结构中的缺陷的方法,包括以下步骤:通过发射宽带声信号在结构中引入机械能,并且以时间间隔捕获多个图像,所述多个图像包括: 排列成多个行和列的多个像素,每个行和列都表示由结构的一部分发射的红外能量的强度。

    Infrared defect detection via broad-band acoustics
    3.
    发明授权
    Infrared defect detection via broad-band acoustics 有权
    通过宽带声学进行红外缺陷检测

    公开(公告)号:US07297952B2

    公开(公告)日:2007-11-20

    申请号:US11372617

    申请日:2006-03-10

    IPC分类号: G01J5/02

    摘要: A method of detecting defects in structures, comprising the steps of inducing mechanical energy in a structure via the emission of a broad-band acoustic signal, and capturing over a time interval a plurality of images of the structure each of the plurality of images comprised of a plurality of pixels arranged in a plurality of rows and columns each indicative of an intensity of infrared energy emitted by a portion of the structure.

    摘要翻译: 一种检测结构中的缺陷的方法,包括以下步骤:通过发射宽带声信号在结构中引入机械能,并且以时间间隔捕获多个图像,所述多个图像包括: 排列成多个行和列的多个像素,每个行和列都表示由结构的一部分发射的红外能量的强度。

    Omni-directional electric current perturbation probe

    公开(公告)号:US20080018331A1

    公开(公告)日:2008-01-24

    申请号:US11488295

    申请日:2006-07-18

    IPC分类号: G01N27/82

    CPC分类号: G01N27/9046

    摘要: An electric current perturbation probe includes at least one driver coil and at least one receiver. The at least one driver coil produces an omni-directional magnetic field. The at least one receiver is decoupled from the omni-directional magnetic field. In one example, the at least one driver coil includes a first driver coil that defines a first effective coil axis which is positioned orthogonally to a second effective coil axis of a second driver coil. The first driver coil is provided with a first electrical excitation signal which is phase shifted by 90 degrees from a second electrical excitation signal used to drive the second driver coil.