Monitoring part-to-part gap and laser power effects in remote laser welding of 1050 aluminum busbar-to-terminal connections via optical microphone sensing

This folder contains the data from the paper "Monitoring part-to-part gap and laser power effects in remote laser welding of 1050 aluminum busbar-to-terminal connections via optical microphone sensing", Basile et. al 2025. In this folder, you will find: - The Excel file "Experiments parameters.xlsx", which lists all the process parameters used for each experimental run. - The MAT-file "mic_raw.mat", containing the raw data acquired from the optical microphone. The matrix has dimensions 5,000,000 × 183: - Columns 1–180 correspond to the full factorial design. - Columns 181–183 contain additional tests performed at 2000 W to induce piercing conditions. - The MATLAB script "main_code.m", which reproduces the analysis presented in the paper. The MATLAB function "psd_quotient.m", which is called by main_code. (Make sure both files are placed in the same folder before running the code.)