Count accuracy control means for a blood analyses system

摘要: An apparatus for making blood counts is provided with computer and instrument control to optimize performance of the apparatus. Means counting cells such as platelets, white red enables a plot number particles counted in each adjacent bands or channels inclusive within selected range particle size so that count against may be made. The analyses plots thus obtained by system algorithms order correct errors various types which occur plot. For example, calculating logarithms mean channel, further log generally symmetrical bell shape generated. calculates change logarithm (Δ log) channels. A straight line fixed slope then plotted representing size, giving more weight those points near peak. calculation steps are reversed using on ultimately from Δ taking anti-log regenerate new curve showing accurately distribution size.