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.

Pave! M. Niko!aev C Alexander M. Niko!aev C yj M. Niko!aev C ABSTRACT Most oil product pipelines have a design life from 20 till 25 years. The first attributes of their destruction are leakage of oil products. So it is necessary to test pipelines by means of leak detection systems. But most of main oil product pipelines are locating in the difficulty accessible places: deep forests, marsh lands and so on. One way to simplify delivery of testing systems to pipelines location is to use mobile leak detection systems. In our paper we try to discuss experience of creation of different mobile systems. In the base of each system stands eigther lidar system, or UHF thermography system, which are developed in the Kazan State Technical University. We present results of designing of four mobile systems. Two systems based on air vehicles. First one -on aerostat "Crimea" (SRI of Aeroelastic Systems) and second one -on programming shuttle airplane (Vizier Engineering, Inc.). Loading weight ofthis vehicles allow to transportate radiometric devices for UHF thermography. And two systems are based on land car vehicles -KAMAZ -4208 and UAZ-3962. First one -lidar integrated system for methane (IR-cw-LFM He-Ne-DIAL lidar) and liquid oil product detection (pulsed YAG:Nd3 lidar) with MIC-2000 computer. Second one -computerized system for UHF thermography with mapping possibilities. Theoretical considerations, system demands and practical results are discussed.