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sound velocity in plastics, ultrasound velocity, acoustic velocity
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US data table for plastics
Material Vl[m/s] D:Kg/m3 Z[MRayls]
ABS 2230 1.03 2.31
Acrylic plexiglas 2750 1.19 3.26
Adiprene 1689 1.16 1.94
Bakelite 1590 1.40 3.63
Cellulose Butyrate 2140 1.19 2.56
Delrin 2430 1.42 3.45
Epotek 301 2640 1.08 2.85
Ethyl vinyl acetate 1800 0.94 1.69
Neoprene 1600 1.31 2.1
Mylar 2450 1.18 3.0
Nylon 6/6 2600 1.12 2.9
Polycarbonate 2270 1.22 2.77
Polyester casting resin 2290 1.07 2.86
Polyethylene 1950 0.90 1.76
UDV Technique Solid Plastics Liquids
Polyethylene high density 2430 0.96 2.33
Polyethylene low density 1950 0.92 1.79
Polypropylene 2470 0.88 2.40
Polystyrene 2320 1.04 2.42
Polyurethane 1700 1.04 1.80
PVC 2380 1.38 3.27
PVDF 2300 1.79 4.2
Scotch tape 2.5 mils thick 1900 1.16 2.08
Vinyl rigid 2230 1.33 2.96
Vl = longitudinal sound velocity [m/s]D = density [kg/m3]
Z = acoustic impedance [MRayls]
More data from Alan Selfridge can be collected at http://www.ultrasonic.com
Signal Processing SA 6 ch. du Cret Rouge 1073 Savigny SwitzerlandTel:+41 21 683.17.17 FAX:+41 21 683.17.18 email: [email protected]
