BSA Flow Software Installation and User's Guide - CSI

performed prior to phase sorting you will get more than one column of
output data containing the phase sorted coincident samples.
In case of a PDA system, particle diameter will be available.
Angle Bin The column labelled Angle Bin identifies these bins by their upper limit.
Counts The column labelled Counts contains the number of samples that fell in each
bin, and is relevant in estimating the accuracy of the calculated mean- and
RMS-values. If either of the angle bins contain too few samples to yield
reliable mean- and RMS-values, you will have to increase the bin width by
reducing the total number of bins.
Please note that some bins may be empty: if an impeller blade blocks the
laser beams, a measurement is not possible.
Mean and RMS The last columns contain the calculated Mean-velocities and RMS-values for
each of the angle bins. In the example in Figure 6-49 the samples come from
LDA1, but they may also come from another channel, or be labelled U, V or
W, if coincidence filtering and coordinate transformation has been
performed prior to phase sorting.
Again coincidence filtering prior to phase sorting will yield mean- and RMSvalues
for all of the samples (velocities) available.
Presenting results
To present your results, you can either use the Advanced Graphics add-on,
or you can export the results storing them in a file, and then use your own or
third party software to make a presentation based on the data in the file.
The graph figures above were made using the Advanced Graphics add-on’s
2D Plot.
6.4 Spectrum and Correlation Add-on
The Spectrum and Correlation add-on will allow you to estimate autospectral
density functions as well as autocorrelation functions on the basis of your
measured data.
When the add-on is installed, three new objects, Spectrum, Advanced
Spectrum and Correlation, will appear in the list of options, when you create
a new object (See Figure 6-50).
BSA Flow Software:Options and Add-ons 6-51