Wind direction is measured using a system comprising an electrooptic measuring unit with a transmitter (11) for emitting laser beams in a number of different directions from the turbine (1) and a receiver (17) for laser radiation reflected by the air. A processor unit (18, 19, 22) uses ...
PM 10 samples from eight wind directions were collected with ACCU(Automatic Cartridge Collection Unit)method for 3 months on one monitoring site in Wusong industry area of Shanghai,and PM 10 concentrations were measured in samples and 18 inorganic elements concentrations were measured by PIXE(proton...
In the presence of different wind directions, the movement of the flapping﹚ings is measured using flexible strain sensors, and the current wind direction is detected by capitalizing on the intrinsic wing dynamics. As a result, it is found that the detection accuracy using our embedded flexible ...
Imaging is achieved using a 1-m aperture conically scanning antenna. The polarimetric azimuthal signature of the ocean is known from modeling and circle flight experiments. Combining the signature with the measured brightness data from just a single flight track enables the wind direction to be ...
Downwind turbines WGT 11 / WTG 12 are affected by the wake caused by WTG08, since the real predominant wind direction is different from the one measured. In this illustrated example we have considered a conservative wind vane offset error of ±7º degrees. ...
Digital wind speed and angle measuring system The measurement of wind speed and direction are the most important factors in weather prediction. They can be measured by a variety of tools. The most common, complete portable system is the anemometer, which typically consists of a rota... NWK Jay...
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From the coastal radar images and the aerial photographs, the direction and length of the principal wavetrains were measured by a manual analysis. The SAR images were also processed using an FFT to give two-dimensional wave spectra. The array at the Naval Ocean Systems Center (NOSC) tower ...
A modulator control device for radio reporting of wind speed and direction, as measured by standard instruments, is here outlined. Ronald L. Ives - 《Eos Transactions American Geophysical Union》 被引量: 0发表: 1947年 Environmental Engineers' Passion for Sustainability Research Study solar radiation...
However, Z can certainly be measured for horizontally or vertically polarized waves, ie, Zh, Zv. Since polarization directions can change upon scattering at an object, more precisely, one refers to eg, Zhh, where the first of the two indices is the polarization direction of the transmitted ...