Resonance tube

Description

This apparatus is ideal for all resonance investigations in air
columns particularly the Salters MUS Activity 9.
The main tube is 1 metre long and 50mm diameter which
takes a high power sound wave generator unit plugged in
to one end.
The generator is driven by a standard laboratory signal
generator and as the frequency is adjusted the various
resonance modes are detected by increased loudness of
the note. The open pipe can be studied or a variable length
closed pipe can be used by inserting the piston assembly
provided.
By using a higher amplitude on the generator, Kundt’s tube
investigations can be undertaken. Fine cork or polystyrene
dust is distributed throughout the tube and at resonance
the powder gathers at the nodes.
Wavelengths can be easily measured. To get a good
response a closed tube is preferable, to reduce the sound
levels in the laboratory while producing a measurable effect.
The apparatus comes complete with two supports for the
tube, sound wave generator, resonance tube, closing bung
and full instructions.
Requires a signal generator covering 10Hz to 10kHz such
as the Lascells 50-160.
SP4-1768
Spare sounder unit SP4-1768A
signal generator SP4-1771