Evaluating condition with the aid of a musical fingerprint

With the musical fingerprint of bells, the current state of a bell can be determined. With the help of sound recordings, cracks and imperfections in bells can be detected and localized, even if they are not yet detectable by the eye or if they are inside the bell material.

The musical fingerprint is particularly suitable for this:

• to detect cracks that do not yet have an audible effect on the bell sound; 
• to monitor endangered, valuable or damaged bells, in order to avoid crack propagation or to detect it at a very early stage;  
• to check the quality of a bell repair and to detect possible further damage;
• to monitor repaired bells in order to prevent the possibility of cracking again;