| 摘要 |
The apparatus, method and system for inspecting a fastener installed in a structure includes the illumination of a fastener and a portion of the structure surrounding the fastener, the detection of the light reflected from the fastener and the portion of the structure surrounding the fastener, the analysis of the reflected light, and the definition of at least one inspection criteria. The structure has a coating that reflects light of a predefined wavelength differently than the fastener. As such, the light that illuminates the fastener and the structure surrounding the fastener has a wavelength within the predefined range. The light reflected from the fastener and the portion of the structure surrounding the fastener is then detected and analyzed to determine an interface between exposed surfaces of the fastener and the coating. Based upon the detected interface, at least one inspection criteria may then be defined.
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