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Measure/Align Dialog Box
Figure 9
Figure 9 shows the Measure/Align screen from the Lasercheck Windows software.
Measure/Align provides the same information as Measure/Headtest but in a different format and display.
The relative indication of the Lasercheck standoff height from the surface as indicated in the
Measure/Headtest screen is indicated in the top portion of the dialog box. For optimal alignment target a
standoff height value of 1.069.
Note: this Standoff Distance calculation is a relative reading only; the
absolute values are not correct.
A downward or upward pointing chevron is also provided to indicate to the
user to move the head up or down to achieve optimal alignment.
Horizontal Alignment with Measure/Headtest or Measure/Align
Measure/Headtest and Measure/Align in the windows software will help you with horizontal alignment on
cylindrical surfaces. Remember SUM is a sum of all of the voltages from the detectors. When horizontally
aligned, you will obtain the largest possible value on SUM because more light is reflecting into the center of
the detector window and detectors. As you move the head back and forth over a cylindrical surface, you will
see this value go up and down. Position Lasercheck for maximum signal on SUM. The lower portion of the
“Measure/Align” dialog box provides a display of the reading from SUM, a continuously updating
maximum value from SUM, as well as a continually updating bar graph to help with horizontal alignment.
You must be sure to pass the head back and forth over the surface one or two times so that the maximum
possible value for SUM can be found. Once it is found, then the head must be positioned to achieve a value
as close to that maximum as possible.
NOTE:
Do not assume that a 100% reading in the Measure/Align dialog box is correct. Always move the
head back and forth to find and update a true maximum 100% value.
