METHODS AND SYSTEMS FOR LOCATING AN UNDERGROUND OPTICAL FIBER

Abstract: a method and a system for locating an underground optical fiber extending under a target ground surface are disclosed. the method includes performing a plurality of measurements at a plurality of waypoints of an inspection path over the target ground surface. each measurement includes generating a vibration event at the corresponding waypoint, concurrently to the generation of the vibration event, sending a test signal sensitive to the vibration event in the underground optical fiber, receiving a return test signal therefrom and determining an amplitude of the return test signal. the method includes determining a relative surface position of a segment of the underground optical fiber crossed by the inspection path. the method includes determining a depth of the underground optical fiber by obtaining a vibration fitting curve by fitting the amplitudes of the return signals for each of the waypoints and calculating the depth of the underground optical fiber.

Inventor(s): Michel LECLERC, Hongxin CHEN

CPC Classification: G01V8/16 (GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons ))

Search for rejections for patent application number 20250172717