Wave Machine, Plastic

Electronic Frequency Controller for use with ripple tank, to operate both the vibrator and a lamp for illumination. A digital display with two control knobs one for Frequency and another for amplitude are provided. Output signal is square wave from 1-100 Hz with increment set of 1Hz.

Hollow wooden sounding box 1290 x 130 x 110 mm, with mm scale, has two fixed bridges 72 cm apart over which wires are stretched. To one wire is fitted a spring balance reading to 100N x 5N and its tension can be adjusted by a winged nut and measured. Another wire passes over a pulley and can be loaded as desired. A third wire, for comparison, can have its tension adjusted by a wrest-pin. With 3 movable bridges, wrest-pin key, spring balance, and set of four wires of different diameters, each 1.5 meter long, without masses.

Dia. 20 mm. length 3 meters approx. when closed, extending to 10 meters, for transverse wave motion experiments.