Electronic Gating for Particle/Cell Counting and Sizing, DSP-operated

Hardware and software solutions are proposed for development of a cell/particle counting and sizing system, DSP operated. Labview, a graphical programming language from National Instruments, was adopted as the DSP programming platform. The system makes use of an electronic gate detector and a current source for resistance-to-voltage conversion. Special attention was paid to data reduction, noise elimination and baseline restoration. The accuracy was verified on a basis of externally generated test signals, and by using particle size calibration standards. The proposed hardware and signal handling software with minor modifications is also suited as a detection system for cell chromatography and flow cytometry