Analyzing the Results Manually
170
FTB-700 Series
Getting Reflectance
Getting Reflectance
Reflectance is the ratio of reflected light to input light.
Note:
If you are testing in Real time, the reflectance value you will get is not
necessarily accurate.
To get reflectance:
1.
From the main window, select the
Measure
tab.
2.
In the
Results
section, press the
Refl.
button. Markers
a
,
A
and
B
appear on the graph.
3.
Zoom in and position marker
A
on the linear area
preceding
the event
to be measured. For more information, see
4.
Position submarker
a
at the beginning of the linear area
preceding
the
event to be measured.
5.
Position marker
B
at the
peak
of the reflective event to be measured.
Note:
Using this procedure, you can measure the reflectance of all the events in a
merged reflective fault event.
Note:
For non-reflective events,
∗∗∗∗∗
will be displayed.
