Adaptive Contactless Fiber-Optic Vibration Displacement Sensor
The construction of a contactless adaptive vibration sensor based on an externally modulated reflectometer-type fiber-optic transducer is discussed. The sources of measurement error and ways of reducing them are determined. An experimental prototype fiber-optic contactless adaptive vibration sensor and a method for correcting its transfer function are described.
The paper is devoted to non-contact measurement of machine vibration parameters using fiber-optic transducer operating as a part of intellectual measuring system. The description of the developed measurement system allows to measure parameters of a harmonic vibration and correcting inaccuracies using special algorithms.
The REV conference is the annual conference of the International Association of Online Engineering (IAOE) and the Global Online Laboratory Consortium (GOLC). REV 2016 is the thirteenth in a series of annual events concerning the area of remote engineering and virtual instrumentation. The general objective of this conference is to contribute and discuss fundamentals, applications and experiences in the field of remote engineering and virtual instrumentation. With the increasing of the interest of new scientific and engineering applications of remote services, education applications and collaborative environment as well as the projects being developed in this area, and the Institution and Organizations (public and privates) interest in new developments like Internet of Things, Industry 4.0, cyber security, M2M and smart objects. Another objective of the symposium is to discuss guidelines for education in University level for those topics including new technology applications, MOOCs, Open resources and STEM pre-University attraction. REV 2016 offers an exciting technical program as well as academic networking opportunities during the social events in Madrid.
The paper considers the measurement principle of vibration parameters with contactless fiber-optical sensor. The description and the possibility of virtual instrument designed for measuring vibration parameters using the fiber-optical sensor.
An example of the construction of contactless vibration sensors based on fiber-optical displacement transducers with external modulation. Considered sources of measurement inaccuracy and methods of reducing them. Designed and tested the prototype of adaptive fiber-optical vibration sensor.
Generalized error-locating codes are discussed. An algorithm for calculation of the upper bound of the probability of erroneous decoding for known code parameters and the input error probability is given. Based on this algorithm, an algorithm for selection of the code parameters for a specified design and input and output error probabilities is constructed. The lower bound of the probability of erroneous decoding is given. Examples of the dependence of the probability of erroneous decoding on the input error probability are given and the behavior of the obtained curves is explained.
The dynamics of a two-component Davydov-Scott (DS) soliton with a small mismatch of the initial location or velocity of the high-frequency (HF) component was investigated within the framework of the Zakharov-type system of two coupled equations for the HF and low-frequency (LF) fields. In this system, the HF field is described by the linear Schrödinger equation with the potential generated by the LF component varying in time and space. The LF component in this system is described by the Korteweg-de Vries equation with a term of quadratic influence of the HF field on the LF field. The frequency of the DS soliton`s component oscillation was found analytically using the balance equation. The perturbed DS soliton was shown to be stable. The analytical results were confirmed by numerical simulations.
Radiation conditions are described for various space regions, radiation-induced effects in spacecraft materials and equipment components are considered and information on theoretical, computational, and experimental methods for studying radiation effects are presented. The peculiarities of radiation effects on nanostructures and some problems related to modeling and radiation testing of such structures are considered.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.