Navigation

    • Register
    • Login
    • Search
    • OpenHardware.io
    • Categories
    • Recent
    • Tags
    • Popular
    1. Home
    2. bezeefly
    • Profile
    • Following
    • Followers
    • Topics
    • Posts
    • Best
    • Groups

    bezeefly

    @bezeefly

    0
    Reputation
    2
    Posts
    417
    Profile views
    0
    Followers
    0
    Following
    Joined Last Online

    bezeefly Follow

    Best posts made by bezeefly

    This user hasn't posted anything yet.

    Latest posts made by bezeefly

    • RE: Air Quality Sensor

      @epierre I obtained the following equation by polynomial fit the low ratio vs particle (pcs/283ml) graph in the DSM501 datasheet.

      concentration = (0.1 * pow(ratio, 2)) + (619 * ratio) + 50;

      Please help to check whether the equation is correct.

      posted in Hardware
      bezeefly
      bezeefly
    • RE: Air Quality Sensor

      @epierre I am working on a dust sensor project using Samyoung DSM501A. I am confused with the identical calculation formula used in the Samyoung DSM501A and Shinyei PPD42NS dust sketch.

      concentration = 1.1pow(ratio,3)-3.8pow(ratio,2)+520*ratio+0.62;

      My understanding is that the formula is based on the specific product's data sheet curve. Is the formula for DSM501A, PPD42NS, or both?

      posted in Hardware
      bezeefly
      bezeefly