ABC's of Ultrasonics
ABC's of Ultrasonics
ABC's of Ultrasonics
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Inspection Modes<br />
Pulse-Echo<br />
Through Transmission<br />
Transmit<br />
Transmit<br />
&<br />
Receive<br />
Receive<br />
30<br />
Pulse-Echo<br />
Pulse-Echo<br />
-<br />
-<br />
One<br />
One<br />
Transducer<br />
Transducer<br />
Through<br />
•<br />
•<br />
Ultrasound<br />
Ultrasound<br />
reflected<br />
reflected<br />
from<br />
from<br />
the<br />
the<br />
sample<br />
sample<br />
is<br />
is<br />
used. Through<br />
Transmission<br />
Transmission<br />
-<br />
-<br />
Two<br />
Two<br />
Transducers<br />
Transducers<br />
used. •<br />
•<br />
•<br />
Can<br />
Can<br />
determine<br />
determine<br />
which<br />
which<br />
interface<br />
interface<br />
is<br />
is<br />
delaminated. •<br />
Ultrasound<br />
Ultrasound<br />
transmitted<br />
transmitted<br />
through<br />
through<br />
the<br />
the<br />
delaminated. sample<br />
•<br />
•<br />
Requires<br />
Requires<br />
scanning<br />
scanning<br />
from<br />
from<br />
both<br />
both<br />
sides<br />
sides<br />
to<br />
to<br />
inspect sample<br />
is<br />
is<br />
used.<br />
used.<br />
inspect •<br />
all<br />
all<br />
interfaces.<br />
•<br />
One<br />
One<br />
Scan<br />
Scan<br />
reveals<br />
reveals<br />
delamination<br />
delamination<br />
at<br />
at<br />
all<br />
all<br />
interfaces.<br />
interfaces.<br />
•<br />
•<br />
Provides<br />
Provides<br />
images<br />
images<br />
with<br />
with<br />
high<br />
high<br />
degree<br />
degree<br />
<strong>of</strong><br />
<strong>of</strong><br />
spatial<br />
interfaces.<br />
spatial •<br />
detail.<br />
•<br />
No<br />
No<br />
way<br />
way<br />
to<br />
to<br />
determine<br />
determine<br />
which<br />
which<br />
interface<br />
interface<br />
is<br />
is<br />
detail.<br />
delaminated.<br />
•<br />
•<br />
Peak<br />
Peak<br />
Amplitude,<br />
Amplitude,<br />
Time<br />
Time<br />
<strong>of</strong><br />
<strong>of</strong><br />
Flight<br />
Flight<br />
(TOF)<br />
(TOF)<br />
and<br />
delaminated.<br />
and •<br />
Phase<br />
Phase<br />
Inversion<br />
Inversion<br />
measurement<br />
•<br />
Less<br />
Less<br />
spatial<br />
spatial<br />
resolution<br />
resolution<br />
than<br />
than<br />
pulse-echo.<br />
pulse-echo.<br />
measurement<br />
•<br />
Copyright •<br />
Commonly<br />
Sonix, Commonly<br />
used<br />
Inc used<br />
to<br />
to<br />
verify<br />
verify<br />
pulse-echo<br />
pulse-echo<br />
results.<br />
results.
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