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what is a wet bulb?

Discussion in 'Incubating & Hatching Eggs' started by AK_Button_Mama, Jan 4, 2009.

  1. AK_Button_Mama

    AK_Button_Mama Chillin' With My Peeps

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    Dec 30, 2008
    Wasilla, Alaska
    I was reading on this web site about incubators na d read soemthing about a wet bulb could some one explain this? it said the following"hatch temp 99, humidity wet bulb temp 84-86"

    I dont understand what it is saying?
     
  2. redhen

    redhen Kiss My Grits... Premium Member

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    May 19, 2008
    Western MA
    thanks for asking this!...[​IMG]...i have been wondering the same thing!...thanks!
     
  3. silkiechicken

    silkiechicken Staff PhD Premium Member

    Wet bulb is simply a regular thermometer with a "wet sock" on the end so that you read the "wet bulb" temp. It will give you the relative humidity in the incubator without having a hydrometer. There are charts that you can use to look up the numbers.

    Here's a link that may be helpful.
    http://www.engineeringtoolbox.com/dry-wet-bulb-dew-point-air-d_682.html


    ETA:
    http://en.wikipedia.org/wiki/Wet-bulb_temperature
    http://retirees.uwaterloo.ca/~jerry/orchids/wet&dry.html

    I used this method when I wanted to check humidity, and so have never used a hydrometer...
     
    Last edited: Jan 4, 2009
  4. redhen

    redhen Kiss My Grits... Premium Member

    35,112
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    May 19, 2008
    Western MA
    ooh okay..thanks!...so if i have the humidity thermo. i dont need a wet bulb?...thanks, Wendy
     

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