Lenze Quality Inspection Dataset (Lenze-QI)

Quality inspection is an important step in industrial production avoiding early failures and customer complaints. Custom-built products are often produced in a high number of variants and a low number of instances per variant, which makes automation of quality inspection a difficult task. Today’s manual inspection is cost-intensive and error-prune. To investigate the general problem setting, we introduce a novel dataset from the real-world quality inspection at Lenze, called Lenze-QI. The data is acquired during the end-of-line test of a production line for geared motors, which covers a broad portfolio. For a detailed description of the experiment, refer to our paper "Enhancing Quality Inspection of Highly Variant Geared Motors" at https://ssrn.com/abstract=5077169 or https://doi.org/10.1016/j.apacoust.2025.110687, please. Please note, that the public version of the dataset is missing some of the audio-files compared to that one used in the paper for ethical reasons. The variants configurations are anonymized, but the additional attributes which are the shaft-speeds and gear-mesh frequencies are given in Hz. If you use Lenze-QI within a scientific work, please cite our paper in addition to the dataset itself. For details on the dataset structure, please refer to the Quick_Start_Script, found in the files.