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Andres

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  1. Dear Sreten. What you're trying to do, I have already done it my self, and I'm not very happy with results. It seems to work the use of an adapter, but with strong winds or very high gusts the boom starts to oscilate, and that my friend does affect the reading of the sensor. So, what we do is to construct our own boom, using 1/2" galvanized steel pipes, with semi-spherical ring brackets welded to the structure, and for the installation of the sensor we use 1" steel galvanized pipe, like the ones used in plumbing, also welded to te structure (1/2" pipe). If you want, write me, so i can send pictures of the boom, we designed. BR Andres andrex@inel.une.cu
  2. I'll give you a criteria according to my experience of working simultaneously with NRG and THIES sensors. I ran a wind prospecting network of over 80 masts of 50 m each, in Cuba, and I installed my self over 50 % of them. One thing that favoured your plastic cover anemometers against the THIES' anodized aluminum body is the lightnings. I had, 'till date, 5 anemometres that were literraly stocked by indirect lightning stroke, the bearing got virtually melted. This is something that naver happended with NRG anemos. But, I've notice that NRG anemos have a bigger inertia than THIES ones, at the moment of start running, like if the bearings of THIES had less friction, and this is something quite interesting, that I've found in a mast in which i installed both systems.
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