Coil spring vibrations Investigation of vibrations on a spiral spring rotating mass system Features - torsional oscillations of a spring-mass system Learning objectives/experiments - determine the rigidity of a helical spring - determine the natural frequency of a spring-mass system - investigate the effect of mass and mass distribution Specification [1] investigate vibrations on a spring-mass system [2] lever with sliding mass to deflect the helical spring [3] adjustable distance of the mass to the rotation axis [4] angle scale for reading the angle of deflection [5] stopwatch to measure the oscillation period [6] determine the natural frequency and the spring stiffness [7] bracket for wall mounting Technical data Helical spring - cross-section: 10x1mm - spring length: approx. 800mm - inner radius: 10mm - outer radius: 50mm - winding distance: 8,5mm Sliding mass: 2x 0,5kg Distance from mass to rotation axis - 36...150mm Deflection angle - max. 360° - graduation: 1° Stopwatch: 1/100s LxWxH: 250x200x360mm Weight: approx. 6kg