OPTICAL FIBER SENSOR CABLE SYSTEM FOR MEASURING 3 COMPONENTS VIBRATION OF SEISMIC PROFILING

摘要

The present invention relates to a seismic wave exploration system for measuring and analyzing underground vibrations by installing a fiber optic sensor cable in an observation hole. In particular, the present invention provides a basis for measuring the directionality of vibration by arranging four optical fibers orthogonally to each other and analyzing a signal obtained from each optical fiber. In the present invention, four optical fiber sensors are arranged at 90 degree angular intervals in the observation hole, and each of them provides a configuration that can be closely attached to the wall of the hole.