For any parachute system, it is important to predict the opening forces it will experience in order to make a safe and economic choice of materials to be used. Developed fiber optic sensors on two twisted fibers with the locked ends and variable twisting step have been used for creation of intellectual knots of perspective vehicles, in particular, parachute canopies and slings. We decided to change our measuring procedure from measuring of transmitted power or its Raleigh scattering in different ends of twisted fibers onto Brillouin scattering characterization. For this situation we offered the kind of method of frequency variation to get the information about the frequency shift and Q-factor of the Brillouin scattering in each sensor.

Date Published: 4 April 2014
PDF: 8 pages
Proc. SPIE 9156, Optical Technologies for Telecommunications 2013, 91560B (4 April 2014); doi: 10.1117/12.2054251

Published in SPIE Proceedings Vol. 9156:
Optical Technologies for Telecommunications 2013
Vladimir A. Andreev; Vladimir A. Burdin; Albert H. Sultanov; Oleg G. Morozov, Editor(s)