Patent ID: 8411818
Filing Date: 2013-04-02
Classification: G01N

Abstract:
1. X-ray testing method for checking circuit boards that are equipped with components on two sides, for checking soldered joints, with the steps: taking a first x-ray image of a circuit board that is equipped with components only on a first side with a first x-ray device ( taking a second x-ray image of at least one other circuit board that is equipped with components on both a first and a second side with a second x-ray device ( evaluating a test x-ray image in a computer unit, in which the second side that is equipped with the components is displayed in enhanced form by forming a function from pixel values of the first x-ray image and corresponding pixel values of the second x-ray image, and wherein the function for the text x-ray image comprises a quotient formation from the pixel values of the first x-ray image and the pixel values of the second x-ray image.