Manual No. OM5000
Jan X/04 Ver 1.40
49
FIGURE 26
Proper Identification and Selection of
First Half-Cycle During Immersion Gaging
FIGURE 27
Setting the T-GATE STOP Switch on Multiples
for Delay or Immersion Transducer Gaging
NOTE: The second half-cycle is selected
(regardless of polarity) because it has a
higher amplitude than the “actual” first
half-cycle. The amplitude of the small first
(positive) half-cycle depends on the
impedance (reflectivity) of the material
being measured.
T-GATE STOP switch set to NEG in this
example to Sync on the two higher
amplitude negative half-cycles for multiple
echo gaging.
(Typical for immersion or bubbler flat
stock transducer gaging