Distributed measurement of acoustic vibrations and temperature

This work deals with the problem of vibration and temperature measurement using standard telecommunication optical fibers. The main focus of this work is on the measurement of these parameters with distributed acoustic sensing systems (DAS). In this work are also discussed the issues of vibration and temperature measurement with distributed strain and temperature sensing systems (DSTS), with distributed temperature sensing systems (DTS) and with interferometric systems. As part of this work, measurements were made in the laboratory with a commercial DAS system. During these measurements, vibrations and temperature changes around the fiber were simulated. Several methods of data processing have been proposed to evaluate the measured data. The proposed methods of data processing and evaluation of the measured data can be found in the last part of this work