Acrylic Body with Drilled Holes

The is a polished polyacrylic block with bores of various diameters and varying distance from the surface.Experiment Topics:• Determine the speed of sound and the attenuation of ultrasonic signals in polyacrylate• Localize defects• Investigate aberrations resulting from acoustic shadows and ground returns• Analyze frequency-dependent resolving power• Display manual B-images.Both the 1 MHz and 4 MHz transducers are required for studying resolution.