US 11,703,440 B2
Porosity of a part
Andrew Frank Ferro, West Chester, OH (US); and Christopher Michael Meier, Waynesville, OH (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Sep. 24, 2021, as Appl. No. 17/484,458.
Prior Publication US 2023/0099769 A1, Mar. 30, 2023
Int. Cl. G01N 15/08 (2006.01); G01N 23/046 (2018.01)
CPC G01N 15/088 (2013.01) [G01N 23/046 (2013.01); G01N 2015/0846 (2013.01); G01N 2223/419 (2013.01); G01N 2223/649 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for determining porosity of a part comprising:
determining scan data of the part, the scan data comprising data of a plurality of sequential segments, wherein determining scan data of the part comprises determining scan data within a region of interest based on the scan data of the plurality of sequential segments;
determining a background model for the part, the scan data, or both, wherein determining the background model for the part, the scan data, or both comprises determining background data within the region of interest based on the background model; and
determining a bulk porosity based on a difference between the scan data and the background model, wherein determining the bulk porosity based on the difference between the scan data and the background model comprises determining data indicative of a signal to background ratio within the region of interest relating the scan data to the background data.