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How does ultrasonic testing work?
The principle for ultrasonic testing is remarkably
simple. An ultrasonic transmitter is placed in the
hold (empty or with cargo) and emits ultrasound
waves. The hatch cover is then closed, fully cleated
and battened. The surveyor or operator then
uses the SDT Sherlog ultrasonic detector to listen
from the outside and pick up all “leaking” ultrasonic
sounds that pass through the sealing
arrangements, vents and/or cracks.
Ultrasonic testing is far more accurate than other
testing methods, enabling operators and surveyors
to pinpoint leaks that are a problem – or are likely to become one.
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