Reed Instruments TM-8811, Instruction Manual

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Material
Sound Velocity
(m/s) (inch/µs)
Plexiglass 2692 0.106
Grey Cast 4600 0.180
Porcelain 5842 0.230
Glass (Quartz) 5570 0.220
Polystyrene 2337 0.092
PVC 2388 0.094
Quartz Glass 5639 0.222
Rubber, Vulcanized 2311 0.091
Teflon 1422 0.058
Water 1473 0.058
8. Press the or arrows to adjust the sound velocity value by
10m/s. Press and hold the or arrows to adjust the sound
velocity value by 100m/s.
9. Press the VEL button to confirm your selection. The display will show
"0" confirming the sound velocity has been set. If you set a sound
velocity without confirming the selection the meter will automatically
resume normal operation after a few seconds.
Determining the Sound Velocity for a Material with a
Known Thickness
The sound velocity of a material can be measured using a test piece with
a known thickness. In order to determine the sound velocity follow steps 1
through 3 below.
1. Measure the test piece with a caliper or micrometer to confirm
the thickness.
2. Repeat steps 3 through 9 from the "
Setting the Sound Velocity for a
Known Material" section above.
3. Once the sound velocity has been set, proceed with testing.
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