Method and apparatus for measuring small spatial dimensions of an object

摘要: A method and apparatus are disclosed for measuring spatial dimensions of an object. The object is positioned between a radiation source sensitive surface, such as X-ray unit film. distance the small relative to An image produced on film when emitted from unit, by virtue spacing film, magnified, but severely blurred. then digitized restored using two-dimensional deconvolution techniques remove blur, resulting in enlarged, clear image. Edge-detection algorithms used enable measurement dimension. This permits accurate internal voids or cracks bonded welded components.