Patent ID: 9170216
Filing Date: 2015-10-27
Classification: G01N,H01M,Y02E

Abstract:
1. A pinhole detection system of a fuel cell element unit, comprising: a density detection module that detects a density of a fuel cell element unit; a stage on which a fuel cell element unit is disposed to be detected; a drive portion that is configured to move the stage so as to rotate the fuel cell element unit; an X-ray source that is disposed at one side of the stage to apply X-ray to the fuel cell element unit that rotates; an image detector that detects an X-ray penetrating the fuel cell element unit; a computer tomography that reconstructs a three dimensional tomogram wherein a plurality of projections that are detected by the image detector are used to form a three dimensional tomogram, and a determiner that selects a photon energy level of an x-ray and a X-ray window according to the density of the fuel cell element unit; wherein a focus of the X-ray source ranges from 0.1 to 10 μm, a capacity thereof ranges from 2 to 160 keV, a target thereof includes Rh, Cr, Cu, or W, and the X-ray window is made of one of beryllium, boron family, silicon, nitride family, or polymer family, a resolution of the image detector is lower than 1 μm, a magnification thereof ranges from 2000 to 15,000, and a vacuum rate inside a discharge pipe of the X-ray source is below 10