BSA Flow Software Installation and User's Guide - CSI

(histogram properties).
ni
is the number of particles in each size class.
N is the total number of particles plotted in the histogram.
U i
∆ U
is the velocity class i: LDA1 or LDA4 or LDA5.
U max
is the size velocity width and is calculated as ∆U = where Umax
N
i
is the maximum particle velocity bin selected from the histogram properties
(Xmax for X scaling).
Count percent The count of particles per velocity class in percent is calculated as
Count cumulative
ni
ni
(%) = × 100
N
percent The cumulative count in percent of the total number of particles is calculated
for the velocity class i as
Probability Density
n
cum
i
=
∑
1
= j i
j=
N
n
j
× 100 .
Function (PdF) The Probability Density Function (PdF) of a velocity distribution is
calculated as
7.10.2 Size histogram
ni
1
PdF(
U i ) = ×
∆U
N
∆U
where is the velocity class width. PdF(Ui) is in µm -1 i
.
Size histograms are only available with the BSA P processor and Particle
Sizing add-ons. They are calculated from the histogram object according
to the following equations.
Ni is the number of plotted size classes (bins) and selected by the user
(histogram properties).
ni is the number of particles in each size class. Note that, in case the
Probe Volume Correction is applied ni, is replaced by corrected particle
cor
number n (refer to chapter 7.11.3)
i
N is the total number of particles plotted in the histogram.
D i
∆ D
is the diameter of the size class i.
Dmax
is the size class width and is calculated as ∆D = where Dmax is
N
the maximum particle size bin selected from the histogram properties (Xmax
for X scaling).
BSA Flow Software:Reference guide 7-107
i