Acoustic quality assurance with artificial intelligence

Fraunhofer IDMT is a new member of Fraunhofer Vision Alliance and will show at the trade fair how acoustic methods based on airborne sound analysis and artificial intelligence can provide reliable status information where optical methods reach their limits and thus complement them.

The innovative procedure for acoustic quality assurance will be demonstrated at an air hockey table. Here, pucks are used which are made of different materials and cause different but very characteristic "pling" noises as soon as they hit the playground equipment. During the game, these acoustic signals occur so frequently and regularly that they can be used for analysis using machine learning techniques to make a reliable statement about the material from which the pucks are made.

This non-contact method, in which Fraunhofer IDMT combines its many years of expertise in the fields of acoustic measurement technology, signal processing and machine learning, can be used to detect material defects or for in-line monitoring of welding processes. If acoustically perceptible defects are already detected in the process, it can be aborted and restarted promptly. In addition, the Fraunhofer IDMT's acoustic test method is non-destructive and thus serves to reduce expensive test scrap.

The principle demonstrator "Air-Hockey Table" offers visitors not only technical exchange but also sporting variety.

We look forward to your visit!