I want to calculate relative humidity to absolute humidity. result in g/kg

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  1. - 29th November 2013, 00:43 #2
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    pedja089
    pedja089 is offline Senior Member
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    Default Re: I want to calculate relative humidity to absolute humidity. result in g/kg

    It's not to hard to do that...
    Create lookup table in flash memory for this
    1325,3 * 10^(7,5892 * T / (T+240,71))
    for range you need, and step 1-10 degrees, depending on accuracy. Scale it to get most of byte, or word range. Then use interpolation to get more precise result.
    Then just multiply Rv and value from lookup table. After that divide with absolute temp.
    That way I have done this calculation http://www.picbasic.co.uk/forum/showthread.php?t=18483
    Last edited by pedja089; - 29th November 2013 at 00:46.
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