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公开(公告)号：US11300108B2
公开(公告)日：2022-04-12
申请号：US17052197
申请日：2019-04-26
发明人： Hans Georg Conrads , Matthias Maede
摘要： A wind turbine for generating electric energy including a tower equipped with rotatable nacelle with rotor which is rotatable about a horizontal rotational axis and which comprises an electric generator. The wind turbine additionally comprises a device for determining flow direction and speed of the wind and a device for or regulating the alignment of the rotor against the wind. The device for determining speed and flow direction comprises pair of receiving antennas, for obtaining electric signals using electrically influenced particles, molecules carried by the wind and are supplied to a correlation measurement device. Here, the time needed by the electrically influenced particles/molecules to traverse the distance between the receiving antennas of a pair of receiving antennas is determined. Subsequently, speed and flow direction of the wind are calculated in a computing device and are supplied to the device for controlling or regulating the alignment of the rotor.
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公开(公告)号：US10697813B2
公开(公告)日：2020-06-30
申请号：US16346629
申请日：2017-10-27
摘要： Microwave measuring arrangement for determining loading two-phase flow with gaseous carrier medium in tube of channel system (1) with small solid and/or liquid particles. Microwaves with frequencies between 0.95 and 1.05 times the frequency of waveguide fundamental wave, are coupled into an electrically conductive section of the tube/channel system (1), section being delimited by filed rods (4,4′) and acting as resonator, the shift in the resonant frequency of the resonator on account of loading of the medium with solid and/or liquid particles is determined. To suppress interference (reflected, diffracted and/or superimposed) in the tube/or channel system (1), two auxiliary field rods (6, 7 and 6′, 7′) assigned to each filed rod (4,4′) are provided, Auxiliary filed rods (6, 7 and 6′, 7) are arranged at an angle α with respect to the field rod (4, 4′) of α=+45°±10 and/or α=−45°±10° and/or α=+135°±10° and/or α=−135°±.
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