Varying method for natural resonance of resonant objects e.g. acoustic surfaces, tongues, wires, rods or pipes

摘要

The method shapes the metallised object using a laser in order to produce at least a linear deformation. The frequency is measured for an object of the same material. The object is shaped with a laser and a ratio of the laser line length to frequency change is determined as a reference value. Laser lines can be applied at different positions on objects of the same material but different size and thickness and frequency differences determined as reference values.