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  • NRG #40C Uncertainty and Classification

    NRG Systems receives many questions regarding anemometer accuracy, uncertainty and performance. The application note "#40 Anemometer Uncertainty" found in the Technical Support Documentation area of the website addresses uncertainty and measurement, anemometer classification number and calibration...
    Posted to Sensor Uncertainty (Forum) by johng on 09-23-2011

  • Why should I use the new 95 inch mounting boom?

    Hello, What are good applications for the new 95" boom? I was thinking about using it on a standard 60-m tower instead of the 60" boom. Looking at a tower shadow sketch, I see that getting a sensor only four tower diameters away from the tower would give a reading of at worst +/- 2% of free...
    Posted to Sensor Mounting Boom Choices (Forum) by johng on 06-27-2008

  • Re: NRG item 4214 -- new 95" sensor mounting boom

    Great Question! The short answer is that the new 95 inch boom can be used in applications which require lower measurement uncertainty than the 60 inch boom. As for the long answer... I believe you might be looking at Figure G.5 in IEC 61400-12-1 which is based on 2 dimensional Navier-Stokes computations...
    Posted to Update on #40 Vibratory Mode (Forum) by johng on 06-27-2008
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