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4.3 Analysis tab
The analysis tab provides several options for the analysis of your measurement. The default setting is
to show the amplitude of the measured magnetic flux.
4.3.1 Absolute values
The selection of this option causes the program to display the absolute value of the magnetic flux,
showing negative flux as positive. This way of displaying the data simplifies the comparison of the flux
density of north and south poles.
4.3.2 Bar diagram
The bar diagram displays the average of the flux density of each pole, further simplifying the com-
parison of the flux density between poles.
4.3.3 Zoom
This option selects the zoom direction of the mouse scroll wheel. The scale of the Y-axis can also be
adjusted by the drop-down list for Max value Y-axis.
4.3.4 Sensor
If two Hall sensors are used these checkboxes allow for the display of the graph for one or both of the
sensors.
4.3.5 Start plot with turn
This option allows you to start the display of data at another turn than the first full turn recorded.
4.3.6 Number of turns in plot
This option allows you to select the number of turns shown in the plot. To investigate whether there is
an anomaly in the flux density it can be useful verify that it repeats every turn. This can be seen by
displaying two or three turns side by side. If the generator has many poles it can be difficult to
distinguish individual poles if several turns are shown at the same time and then it is better to display
one turn and jump between different turns by selecting different options under Start plot with turn
described in section 4.3.5.
4.4 Graph area
The graph area displays the results of the measurement and the selections you have done in the Analysis
tab.
sensor and Hall sensor 1 are displayed during
monitoring.
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