摘要:
A method for displaying location specific maintenance history for an object is implemented by operating a camera to locate at least one marker tag with fiducial marker-based tracking functionality on the object to provide a reference to a coordinate system associated with the object. An area of the object surrounding the coordinates defined by marker tag is determined from the coordinate system. A repair history for the determined area is then projected onto the object with the projection referenced to the coordinate system associated with the object.
摘要:
A structural repair includes a tell-tale optical witness that allows the health of the repair to be visually monitored. The optical witness includes a stress sensitive fluorescent dye that shows changes in local strain/stress patterns when the repair is subjected to electromagnetic energy of a particular wavelength. The dyes fluoresce more or less strongly as a function of the local stress/strain.
摘要:
A method and apparatus for inspecting a metallic structure. A first signal is sent into a first location in the metallic structure and a second signal into a second location in the metallic structure at substantially a same time. A first response to the first signal is received. A second response to the second signal is received. The first response is compared with the second response to form a comparison. A determination is made as to whether an inconsistency is present using the comparison.
摘要:
Methods and systems are provided for measuring a thickness of an object. A first portion of a device is positioned on a first side of the object, and a second portion of the device is positioned on an opposite side of the object. The first portion includes at least one first mount and at least one eddy current sensor coupled to the first mount. The second portion includes at least one second mount and at least one target coupled to the second mount. The first mount is magnetically coupled to the second mount such that the eddy current sensor is oriented to interact with the target to enable the thickness of the object to be measured.
摘要:
A blunt impact indicator tape includes a tape strip, a plurality of rupture-able fluid microspheres carried by the tape strip and a colored indicator fluid in each of the plurality of fluid microspheres.
摘要:
Sensing strain in an adhesively bonded joint includes inducing a strain wave in the joint, and sensing a change in local magnetic characteristics in the joint. An array includes a plurality of elements for sensing and inducing a strain wave in selected regions of a structure having the adhesively bonded joint. The elements include at least one micromechanical driver for inducing strain waves in selected regions, a plurality of mechanical sensors for measuring vibrations resulting from the induced strain waves, a plurality of micromagnetic drivers for generating weak magnetic fields over the selected regions, and a plurality of micromagnetic sensors for sensing magnetic responses of the selected regions to the strain waves.
摘要:
An electromagnetic barrier includes a first surface and a second surface. A first transducer is coupled to the first surface. A second transducer is coupled to the second surface such that a signal is transmittable between the first transducer and the second transducer without physically penetrating the electromagnetic barrier.
摘要:
A method for testing a multiple layer structure is described. The method includes monitoring strains experienced by strain sensitive, magnetic particles disbursed within an adhesive between a first layer and a second layer, and analyzing any changes in the strains experienced by the particles to determine an amount of damage or degradation to the structure.
摘要:
Apparatus for non-destructive inspection of structural elements or workpieces, in particular those having an airfoil configuration, that moves a scanning sensor across the width (span) of a structural element or workpiece for the purpose of detecting structural damage. In one embodiment, the apparatus simultaneously traverses the length (chord) of the structural element or workpiece. In another embodiment, the apparatus includes a guide rail that encompasses the structural element or workpiece and the scanning sensor travels along the guide rail from a first location at an upper rear region, to the front, of the structural element or workpiece, and then around the leading edge toward the lower rear region. The apparatus includes a processor and a display device to display the processed, sensed, information.
摘要:
A system for inspecting a test article incorporates a diagnostic imaging system for a test article. A command controller receives two dimensional (2D) images from the diagnostic imaging system. A three dimensional (3D) computer aided design (CAD) model visualization system and an alignment system for determining local 3D coordinates are connected to the command controller. Computer software modules incorporated in the command controller are employed, in aligning, the 2D images and 3D CAD model responsive to the local 3D coordinates. The 2D images and 3D CAD model are displayed with reciprocal registration. The alignment system is then directed to selected coordinates in the 2D images or 3D CAD model.