473 research outputs found

    Validation Of Naval Platform Electromagnetic Tools Via Model And Full-Scale Measurements

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    Reliable EMC predictions are very important in the design of a naval platform's topside. Currently, EMC predictions of a Navy ship are verified by scale model and full-scale measurements. In the near future, the validation of software tools leads to an increased confidence in EMC predictions and (hopefully) removes the need for scale model measurements. In general, full-scale verification measurements will remain necessary, although perhaps fewer measurements will be required. The paper presents our topside design experience, from rough estimations 40 years ago, to analytical calculations and model measurements 20 years ago, to the numerically supported process as it is now. It shows the process of validating simulation tools with model and full-scale measurements. It also describes the challenges encountered and the deficiencies of commercial tools used now and the roadmap for Thales Naval Netherlands towards the integrated tools of the future

    Interfered technology: A radiant future: A look forward to EMC in 2023, five years from now

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    In 1973, a three-part full-page article was published in the local newspaper describing our society in the region of Twente, the Netherlands, in 1923, 1973, and 2023 [1]. The author of this article was only 11 years old at the time, but the predictions made were interesting enough to keep that article for 45 years. The article [1] predicted several innovations for 2023, 50 years ahead, such as a magnetic levitation monorail from Twente to Amsterdam reducing the travel time from 2 hours to less than 30 minutes, as shown in Figure 1. However, all we got after 45 years was a new motorway, with lots of traffic jams, and a train that still takes 2 hours. Despite over a century of research and development, maglev trains are currently operated in just three countries: Japan, South Korea, and China. Other innovations predicted in 1973 for 2023 were clothes made by printers (yes, nearly), no cars in city centres (yes), products made in Shanghai (yes), European regions instead of European countries (no, although Catalonia would like this), no manufacturing but only research and development (no), Holec and Signaal merged (no, Holec split up into several divisions now owned by Siemens, Eaton, and General Electric, and Signaal was sold by Philips to Thomson-CSF, now THALES). And the announcement that the University of Twente will be organizing a conference on communication technology, including electronics. This was a very good prediction: communication technology will be a key issue in 2023

    EM-Ambient site survey of industrial environments

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    Using reverberation chambers for em measurements

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