Submicron diameter particle detection utilizing high density array

摘要: Submicron diameter particle detection utilizing a high density array is disclosed. The array, such as charge coupled device, utilized to detect light scattered at sensing region by particles illuminated source, laser source. Charge storage buffer each data frame transferred from the and multiple serial outputs are processed parallel processing that includes threshold analog-to-digital converting. A micro-computer associated digital receives provides indicative of submicron sizing. Further improvement in minimum detectable sizing carried fluid realized use beam shaping optics shape illumination passed through form either an astigmatic (highly elliptical) cross-section, with being directed towards imaging system orthogonal object plane, or circular cross-section flow focal point substantially centrally positioned within case.