An oscillator, which is left alone after a single excitation, performs free vibrations. The frequency of the free vibration is the natural frequency of the oscillator.
In SE 110.58, a bending beam is used as the system’s oscillator. The bending beam can be used vertically standing or hanging and in the horizontal position in the SE 112 mounting frame.
The natural frequency is affected by the clamping length and the sliding weights. The bending beam is deflected by hand and performs free, damped vibrations. The resulting amplitudes are measured via strain gauges and a measuring amplifier. The signal can be displayed on an interlaboratory oscilloscope.