Imaging a localized P-wave velocity variation by inversion of travel time differences measured with Fiber Bragg Gratings embedded in a resin sample

The data stored in the dataset are ultrasonic signals recorder by fiber Bragg gratings. These data were produced as part of a measurement campaign conducted at the GéoEND laboratory. The objective of this measurement campaign is to validate a differential inversion method that used embedded fiber Bragg grating sensors and aimed at imaging a local variation in P-wave velocity within a medium.