3B Scientific GmbH
▪
Rudorffweg 8
▪
21031 Hamburg
▪
Germany
▪
www.3bscientific.com
Subject to technical amendments
© Copyright 2014 3B Scientific GmbH
4-mm plug into red socket, black 4-mm plug
into black ground socket from the side).
•
Connect the pulse box to the speaker.
•
Set both outputs to trigger mode and set the
gain for both channels to a medium value.
•
Connect the microsecond counter and mi-
crophone box to their power supplies and
plug them into the mains.
•
Trigger a click pulse from the pulse box and
read off from the counter the time it takes for
the sound to propagate from the long micro-
phone probe to the short one.
Use the distance between the two microphones
and the time measured to calculate the speed of
sound in the tube at room temperature.
8. Storage, cleaning, disposal
•
Keep the microphone box in a clean, dry
and dust free place.
•
Before cleaning the equipment, disconnect it
from its power supply.
•
Do not clean the unit with volatile solvents or
abrasive cleaners
•
Use a soft, damp cloth to clean it.
•
The packaging should be disposed of at
local recycling points.
•
Should you need to
dispose of the equip-
ment itself, never
throw it away in normal
domestic waste. Local
regulations for the dis-
posal of electrical
equipment will apply.
Fig. 1 Experiment set-up with Kundt’s tube
