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Chapter 9 Flatness Measurements
Analyzing Flatness Measurement Data
Changing the AZ axis scale
To better view the plot of the measurement data, you can change the AZ
axis scale. The distance in the AZ scale box is equivalent to the length of
the AZ segment immediately below it. The isometric graph is plotted using
the same AZ scale.
This exaggerates the distance of the plot from the grid, making it easier to
see how the measurement data deviates from the zero point.
Use the AZ Scale box to change the AZ axis scale. To change the AZ axis
scale, do the following:
1
Place the cursor in the AZ Scale box.
2
Enter a number from .001 to 1000, then press Enter.
Alternatively, you can let the software automatically change the AZ axis
scaling to an optimal value. To do so, select the Autoscale checkbox. This
checkbox is at the bottom of the screen to the right of the Add Text button.
Typing measurement comments
In the upper right corner of the screen is a box in which you can type
comments or other information pertinent to the measurement. To enter
information in this box, select the Add Text button (or press Alt A).
If necessary, you can move the box. To do so, place the cursor in the box,
press the mouse button, drag the box to where you want to move it, then
release the mouse button.
Viewing data analysis results
Below the grid is a box that gives the following measurement analysis
information (the box can be moved to a convenient location by using the
mouse to click and drag it):
•
the greatest vertical deviation from the zero point and the line that
contains this deviation, and
•
the closure error for Lines 7 and 8
Measurements Reference Guide
9-39
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