Oscillations and
Waves > Instruments > Plates, Bars and Solids
> Bars
DCS# 3D40.20
SINGING ROD
APPARATUS
aluminum rod
202-06-C
rosin and chamois
202-06-C
DESCRIPTION
Produce longitudinal standing
waves in an aluminum rod by holding the rod at a node (marked
on the rod) and stroking the rod along its length with a piece
of chamois. The rod should be rubbed with rosin or the
chamois dipped in rosin powder first. Holding the rod at
the center produces the fundamental, 1/4 of the way from the
end produces the 2nd harmonic, 1/6 of the way from the end
produces the 3rd harmonic etc.
We have several aluminum rods of different lengths and
diameters.
