Controlled Mirror Motion System for Resonant Diplexers in ECRH Applications
1 TNO, Technical Sciences, Department of OptoMechatronics, NL-2600 AD, Delft, The Netherlands.
2 Institut für Plasmaforschung, Universität Stuttgart, D-70569 Stuttgart, Germany.
3 Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-17491 Greifswald, Germany.
4 Differ, Dutch Institute for Fundamental Energy Research, Nieuwegein, The Netherlands.
5 Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748 Garching, Germany.
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High-power resonant diplexers for millimetre waves have various promising applications in ECRH systems. The round-trip resonator length of a diplexer needs to be accurately tuned to match its prescribed functionality. For this purpose one of the mirrors in the FADIS MkIIa diplexer has been mounted on a motion system, in order to control the mirror to its desired location despite the presence of substantial disturbances. The mechanical properties and control strategy for the mirror motion system have been designed such as to meet the overall system requirements. The performance of the motion system has been experimentally validated in various high power mm-wave tests.
© Owned by the authors, published by EDP Sciences 2012