SW-2463 - ESAW Three Wire Pattern Geared Sonometer
A hollow wooden sounding box, about 1160×120×115mm (length × width × height) provided with 0-100cm scale at its top, with two wires stretched over fixed bridges, one at each end of the box. One wire passes over a horizontally mounted pulley and has a spring balance for directly reading the tension applied. The second wire is fixed at one end and attached to the wrist pin for tension control and provides a complete length of vibration. The third wire passes over a vertical pulley and for suspending masses through it for tensioning the wire. The wires supplied are of steel and are carefully selected to possess the exact determined density and radius uniformly throughout the length to avoid the need for repeated measurements. The wire tension mechanism is based on a robust and mechanically sound thumb screw & gear system, which is accurate, more reliable, and makes changing wires quick and easy. Complete with three moveable bridges, a wrist-pin key, and a set of four wires, length 1m, diameters 0.70, 0.40, and 0.40mm. Supplied without masses.
SW-2463/1 Sonometer, Three Wire Pattern, with 0-100cm scale
SW-2463/2 Sonometer, Three Wire Pattern, similar to Cat No 1120280/1, but smaller in size and with 0-60cm scale
