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Institute for Acoustic
Microscopy, LLC: A scanning acoustic microscope works
on the principle of propagation and reflection of acoustic
waves at interfaces where a change of acoustic impedance (AI
= density x velocity) occurs.
It is similar to going to a doctor's office for an ultrasound
test. We use the same principle to investigate rocks, concrete,
and other man-made materials. The sound wave is propagated
through water into the sample. At positions where an impedance
(equals velocity times density) change occurs, the sound waves
are reflected back. We map distribution of these reflected
waves we receive at the sample surface. The map of reflected
waves gives us an idea of how impedance changes within our
sample.
Other products:
ultrasonic testing, ultrasonic inspection, ultrasonic measurement,
ultrasonic instrument, non-destructive testing with low (50
MHz) and high frequency (2 GHz) scanning acoustic microscope
(SAM)
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