If the transducer deviates from the required standards in any area, the
acoustic microscope's control software will refuse to use that transducer.
Figure 9 demonstrates correlation between the desktop
acoustic microscope and RSWA.
It is worth noting that the ultrasound pulsed into a sample by the scanning transducer of an
acoustic microscope is reflected only from the material interfaces inside the sample.
For any
acoustic microscope application, the return echoes typically are gated on a particular depth of interest, meaning that echoes arriving before or after the gated time are ignored.
In other words, how thin a delamination can be detected and imaged by an
acoustic microscope?
Ultrasonic wave attenuation was measured by using a scanning laser
acoustic microscope (SLAM), manufactured by SonoScan, Chicago, Illinois.