Objective
The project achieved its aim of measuring interference from equipment used below ground and thus providing insights into the interference sources and their effects on other items of plant. The investigation covered electromagnetic interference fields, and in particular guided and non-guided radiation.
Interference fields are becoming more frequent underground, due in some measure to increased use of thyristor controls. These not only cause disturbance in operational fields such as locomotive radio, telecommunication and remote control, but increasingly affect electronic circuits. This also occurs because high-performance intrinsically safe systems comprise highly integrated electronic units or microprocessors requiring less energy than ever before for switching and storing signals; this means that not only do they respond more quickly to new interference levels, they can now be activated by existing levels which earlier would have had no effect. Our investigations into the behaviour of electromagnetic radio waves have already shown that their properties underground differ from those on the surface, e.g. there may be highly frequency-selective attenuation, and the shape of the worwing, strata composition and the coal itself strongly influence the range of interference fields. The same thing is likely to apply to the interference fields themselves.
The aim of this research project is therefore to find out more about these interference fields, their propagation and their possible effects on electronic circuits, particularly those which have a bearing on safety. It is hoped the findings will enable circuits to be specifically designed to resist the type of interference encountered underground, this contributing to the formulation of practical new harmonized European standards to be applicable, in all Member States of the European Community.
Fields of science (EuroSciVoc)
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
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Coordinator
45307 Essen
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.