Management energy, performance and/or stability with a wind turbine of the horizontal axis of variable-vane geometry management used

摘要

Equipment has two sonar transmitters (23,25), with its sonar receiver (29) for receiving band for the tranmitting frequency for being suitable for transmitter. One signal processing unit allows to input the position for determining a flowing or submergence purpose (27) from the reverberation by object. Processing unit utilizes Doppler difference, is present between reflection signal and corresponds to identical echo and continuous to the discharge from each transmitter. One independent claims further include the application to a submergence of a multi-hull ship or flowing avoidance obstacle equipment.