DMTA-10084-01EN, Rev. 2, November 2018
Chapter 7
80
Figure 7-7 Echo-to-echo measurement example
7.7 Time-of-Flight Mode
The EPOCH 6LT is capable of displaying time-of-flight (TOF) sound path data for a
gated indication. Time-of-flight is the location of the reflector in terms of
microseconds.
The time-of-flight mode does not divide the measurement reading value by two. The
entire time-of-flight through the test piece in both directions is displayed.
When the instrument is set up to display distances in time-of-flight mode, the
Vel oci ty parameter (in the UT dialog box) becomes inactive. This is because time-of-
flight mode does not use the material velocity to calculate sound path measurements.
Echo-to-echo flag
Distance between the
indication in Gate1 and the
Gate2 start
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