FASEROPTISCHES BAU-UEBERWACHUNGSSYSTEM.

摘要

The method of monitoring a physical movement occurring at any point between spaced points on a structure includes the steps of: attaching with an attachment deivice at least one optical fibre continuously to the structure to extend from at least one of the spaced points to the other and thereby engage all points along the structure between the spaced points so that physical movement of the structure between the spaced points will result in physical movement of the optical fibre. A light signal is passed into the optical fibre. Reflection changes in the light signal resulting from the physical movement are detected to thereby provide an indication that a physical movement has taken place and an indication of the location and magnitude of the movement.