Echo Detection Modes With Dual Element Transducers; Figure 6-2 Measuring With The Standard Echo Detection Mode - Olympus 45MG User Manual

DMTA-10022-01EN, Rev. C, January 2015
6.2

Echo Detection Modes with Dual Element Transducers

With dual element transducers, the 45MG offers three echo detection modes that
allow you to measure thicknesses in various material conditions. A description of
each of the three echo detection modes (STANDARD, optional AUTO E-TO-E, and
MANUAL E-TO-E) follows:
STANDARD
The standard echo detection mode measures the thickness based on the time of
flight between the main bang and the first back-wall echo. Use this mode for
uncoated materials.
The DE-STD indicator appears to the left of the thickness reading, and a
triangular echo detection marker appears at the back-wall echo, below the
waveform display (see Figure 6-2 on page 70).
Echo detection marker

Figure 6-2 Measuring with the standard echo detection mode

AUTO E-TO-E (Optional)
The automatic Echo-to-Echo detection mode measures the thickness using the
time of flight between two consecutive back-wall echoes. Use this mode for
painted or coated materials, because the time interval between consecutive back-
wall echoes excludes the time of flight through a paint, resin, or coating layer.
The DE-AEtoE indicator appears to the left of the thickness reading.
When the Waveform software option is enabled, the triangular marker is replaced
70 Chapter 6
Dual element (DE) standard (STD) echo detection mode