Acoustic noise testing is a method for quality testing of components and assemblies (e.g. electric motors, pumps, air conditioning units) that emit noise during operation. Typical “noise and vibration patterns” are defined that stand for a “good” component. These are used to compare or evaluate parts of the same type whose quality is not yet known. If deviations or anomalies are found in the “noise picture”, this is a strong indication of faults in the component (e.g. assembly errors, defects in individual parts, insufficient greasing).
The acoustic noise test can be carried out objectively and reproducibly with the help of suitable test software. The method can therefore already be recommended for the evaluation of prototypes in the development phase and also later in production for monitoring series parts.