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    Item type:Publication, Access status: without files ,
    Analysis of a Physically-Embedded Radar Sensor System
    (2021-04)
    Kurin, Thomas
    ;
    Issakov, Vadim
    ;
    Erhardt, Stefan
    ;
    Weigel, Robert
    ;
    Lurz, Fabian
    This paper presents an embedded mm-wave FMCW-radar based sensor system designed to monitor the structural health of a wind turbine rotor blade. Special consideration is given to the evaluation of thermal performance and the possibility of correlating measurements with the current rotor blade orientation. The sensitivity of the sensor in its embedded state is analyzed and evaluated for system performance.
    Publicationtype: Conference Paper
      29
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    Item type:Publication, Access status: without files ,
    Towards embedded radcom-sensors in wind turbine blades: Preliminary numerical and experimental studies
    (2020)
    Simon, Jonas
    ;
    Moll, Jochen
    ;
    Krozer, Viktor
    ;
    Kurin, Thomas
    ;
    Lurz, Fabian
    This paper presents a numerical study on the application of radar and communication (RadCom) sensor nodes operating in the frequency band from 57–64 GHz. The sensor nodes are embedded in the laminate of wind turbine blades, enable a quality inspection directly after rotor blade manufacturing as well as a structural health monitoring (SHM) throughout the service life of the blade. Given by a lack of dielectric properties for typical rotor blade materials, we have performed experimental studies on material characterization including glass fibre composites, balsa wood, infusion glue, etc. This material database serves as input for wave propagation simulations in a full scale 3D rotor blade model. The analysis also includes a parametric study on path losses as well as an optimal sensor placement strategy.
    Publicationtype: Journal Article
      97