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Mesh with highest resistance?

  1. Mar 12, 2013 #1
    I am building a circuit that is hooked up to a 1.2v NiMH battery. I will be using a wire mesh similar to this: https://www.amazon.com/s/ref=sr_pg_...keywords=304+wire+mesh&ie=UTF8&qid=1363133769

    Unless there is a better mesh for this application.

    I want as much power as possible to be dissipated as heat across this wire mesh? Can you help me find an approach to solving this?

    Based off of reading the specifications here (and pasted below):
    https://www.amazon.com/Stainless-St...&qid=1363134539&sr=1-4&keywords=304+wire+mesh

    Brand Name
    Small Parts

    Part Number
    SS-080-0070-01

    Material Type
    304 Stainless Steel

    Exterior Finish
    Unpolished (Mill)

    System of Measurement
    Inch

    Overall Length
    12 inches

    Length Tolerance
    1/8 inches

    Thickness
    0.007 inches

    Thickness Tolerance
    1/16 inches

    Width
    12 inches

    Width Tolerance
    1/8 inches

    Wire Diameter
    0.007 inches

    Mesh Opening Size
    0.006 inches

    Open Area %
    19

    Specification Met
    ASTM E2016-06

    Item Shape
    Sheet

    Number of Items
    1

    Size Name
    Mesh Size #80 X 80

    There are quite a few variables in the mesh specifications and I was hoping someone could help me determine which ones I can use to determine what mesh I should purchase.

    Thanks.
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Mar 13, 2013 #2
    Generally wire mesh operates at high current and batteries are low current.
    Would it be possible to use standard resistors or nichrome wire?
    If you would include details of what you are trying to do, someone might be able to help you.
     
  4. Mar 13, 2013 #3
    I'm trying to make a heating mesh, similar to that of this mini vape device:
    http://www.instructables.com/id/The-Mini-Vape-Pictures/

    I just would like to know what mesh design specifications will result in the most heat. Thanks.
     
  5. Mar 13, 2013 #4
  6. Mar 13, 2013 #5
    Thanks for the suggestion. In that article he actually says he uses: http://www.twpinc.com/wire-mesh/TWPCAT_10/p_325X325TL0014W48T [Broken]

    This seems to have quite similar specifications to the one you posted from mcmaster. I did notice mcmaster does allow you to purchase a small sample, which is a good thing if I end up purchasing from there.

    My final question is this:
    I know I can copy meshes from others projects, but is there any way for me to learn exactly which specifications of a wire mesh lead to a higher/lower resistance and create a higher/lower amount of heat? From prior research I have learned that a lower wire diameter means higher resistance (which makes sense), but how do the other specifications (i.e % open area, mesh opening size, thickness) affect the resistance of the wire mesh? Thanks.
     
    Last edited by a moderator: May 6, 2017
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