Abstract.One of the promising directions of FOPS implementation is the use them as the new generation sensors of information-measuring systems for measuring the pressure in pneumatic system of mining machinery. The use of FOPS will allow you to solve a number of security issues when operating in difficult and dangerous conditions of the mining industry. In this paper we have developed an experimental model that allows obtaining a high level of sensitivity due to the intensity of the output emitting modulation. Based on the results of experimental researches of FOPS sample the functional dependences are constructed confirming its efficiency of work. The implementation of FOPS will provide the high precision of pressure parameters measurements compared to mechanical and electronic systems and in this regard it is provided the high reliability of its operation in hazardous conditions of mining industry.
This article ls with the issues related to the development of a system for monitoring the deformation and displacement of the rock mass leading to the collapse of the quarry sides. Monitoring system uses point-to-point fiber-optic sensors. Fiber-optic sensors and control cables of the communication line are made based on the single mode optical fibers, which allows to measure with high accuracy the deformations and displacements of the rock mass at a distance of 30-50 km. To create fiber-optic pressure sensors, an optical fiber of the ITU-T G. 652.D standard is used. Laboratory sample is developed concerning the point fiber-optic sensor made based on the two-arm Mach-Zender interferometer using a single mode optical fiber for monitoring strain (displacements) with a change in the sensitivity and a reduced influence of temperature interference leading to zero drift. The article presents a mathematical apparatus for calculating the intensity of radiation of a light wave passing through an optical fiber with and without mechanical stress. A laboratory sample of single mode optical fibers based on the Mach-Zender interferometer showed a fairly high linearity and accuracy in the measurement and can be used to control the strain of the mass after appropriate refinement of its design. Mathematical expressions are also given for determining the intensity of the light wave when the distance between the fixing points of a single mode optical fiber changes depending on the change in the external temperature. A diagram for measuring strain using a point fiber-optic strain sensor is developed. Hardware and software package is developed, which can be used to perform a number of settings of measuring channels. The work is aimed at solving the production problems of the Kenzhem quarry of AK Altynalmas JSC.
Введение Проектирование и планирование подземной шахты нацелено на создание интегрированной системы, в которой добыча и переработка полезных ископаемых осуществляется для определенного рынка при минимальных эксплуатационных расходах и высоких требованиях безопасности. Горная система требует междисциплинарной инженерной структуры и координации его работы [1-9]. Одним из важных аспектов функционирования сложной системы шахты является безопасность проведения горных работ. Несомненно, подземные шахты представляют собой одну из самых сложных и жестких сред для работы людей. Несмотря на то, что безопасность рассматривается как одна из ключевых проблем, ограничения в возможности технологического решения, стоимости и самой природы подземных шахт ограничивают возникновение единого механизма обеспечения полной безопасности для горнорабочих в любой области, что очень важно для высококачественной работы.
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