Olympus 38DL PLUS User Manual

DMTA-10004-01EN, Rev. D, November 2016
Sound Velocities 283
Appendix B: Sound Velocities
Table 41 on page 283 consists of the sound velocities in a variety of common materials.
Use this table only as a guide. The actual velocity in these materials may vary
significantly due to a variety of causes, such as composition, preferred
crystallographic orientation, porosity, and temperature. Therefore, for maximum
accuracy, establish the sound velocity in a given material by first testing a sample of
the material.
Table 41 Sound velocities in 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
Nickel, pure 0.222 5630

Olympus 38DL PLUS Specifications

General

Operating Temperature	-10 °C to 50 °C (14 °F to 122 °F)
Data Logger	Yes
Interface	USB, RS-232
Thickness Range	0.08 mm to 635 mm (0.003 in. to 25 in.) depending on material and transducer
Display	Backlit LCD
Battery Type	Three alkaline or NiMH AA cells
Pulser	Adjustable square wave pulser
Receiver Bandwidth	0.5 MHz to 20 MHz
Languages	English, French, German, Spanish, Italian, Russian, Japanese, Chinese
Resolution	0.001 mm or 0.0001 in.
Transducer Frequency	2 MHz to 30 MHz
Material	Plastic housing