Olympus EPOCH 650, User Manual

Page: 319 / 362

DMTA-10055-01EN, Rev. A, February 2015
Sound Velocities 307
Appendix A: Sound Velocities
Table 25 on page 307 lists the ultrasonic velocity in a variety of common materials.
This is only a guide. The actual velocity in these materials might vary significantly
due to a variety of causes, such as, composition, preferred crystallographic
orientation, porosity, and temperature. For maximum accuracy, establish the sound
velocity in a given material by first testing a sample of the material.
Table 25 Ultrasonic velocities in a variety of common materials
Material V (in./µs) V (m/s)
Acrylic resin (Perspex) 0.107 2730
Aluminum 0.249 6320
Beryllium 0.508 12900
Brass, naval 0.174 4430
Copper 0.183 4660
Diamond 0.709 18000
Glycerin 0.076 1920
Inconel
®
0.229 5820
Iron, Cast (slow) 0.138 3500
Iron, Cast (fast) 0.220 5600
Iron oxide (magnetite) 0.232 5890
Lead 0.085 2160
Lucite ®
0.106 2680
Molybdenum 0.246 6250
Motor oil (SAE 20/30) 0.069 1740