In this folder, .csv files and Matlab scripts for processing data from experimental campaign that has been reported in the following paper: Chianese, G., Franciosa, P., Nolte, J., Ceglarek, D., and Patalano, S., “Characterization of photodiodes for detection of variations in part-to-part gap and weld penetration depth during remote laser welding of copper-to-steel battery tab connectors.” Journal of Manufacturing Science and Engineering. In-press. As the experimental campaign is made up of two phases, files are divided in two folders: (i) Phase I - Weld penetration depth; and, (ii) Phase II - Part-to-part gap. In each of these two folders, there are: (i) a Matlab live script that, once the code is run, allows the user to select the signals (please, select all of them); (ii) functions to run the code; (iii) Matlab variable files; (iii) a folder with .csv files that contain signals recorded during experimental campaign; (iv) an Excel file reporting experimental setup and process parameters; (v) a PDF file with the live script and results of the data processing for the readers that cannot run Matlab codes.