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11952 Views 9 Replies Latest reply: Apr 28, 2013 12:20 AM by SteveNordquist RSS
Roman_ Novice
Roman_
Currently Being Moderated

Jul 26, 2012 3:43 AM

Optical smoke chamber

Hi,

 

I am looking for a "stand alone" optical smoke chamber - there are plenty of smoke detector ICs or fully equipped smoke sensor modules with a relay output, but I can't find a smoke chambers anywhere!?

 

Any ideas?

 

Thanks,

Roman

  • MetMan Apprentice
    MetMan
    86 posts since
    Oct 24, 2011
    Currently Being Moderated
    Jul 26, 2012 9:16 AM (in response to Roman_)
    Optical smoke chamber

    Roman,

    What are you trying to do with the chamber?  Are you just wanting to build a smoke detector yourself?  Or trying to analyze the smoke concentration?  Are you wanting just the mechanical chamber or complete with optics and/or electronics?

    • Roman_ Novice
      Roman_
      3 posts since
      Jul 26, 2012
      Currently Being Moderated
      Jul 26, 2012 9:39 AM (in response to MetMan)
      Optical smoke chamber

      Hi Metman,

       

      We are developing a sensor module with different sensors in one housing, including the smoke detector. We also need the optics and electronics, but this is much easier to find/get than the (mechanical) smoke chamber itself...

       

      Thanks,

      Roman

      • MetMan Apprentice
        MetMan
        86 posts since
        Oct 24, 2011
        Currently Being Moderated
        Jul 26, 2012 9:56 AM (in response to Roman_)
        Optical smoke chamber

        What's your budget/target price?  I know of some OEM optical engines, but they're on the order of a few hundred dollars and up and are used more for particulate concentration monitoring.

         

        Are you pulling flow through the unit, or just sampling ambient air as it drifts by?

        • Roman_ Novice
          Roman_
          3 posts since
          Jul 26, 2012
          Currently Being Moderated
          Jul 26, 2012 10:03 AM (in response to MetMan)
          Optical smoke chamber

          That's not our target price, the components/smoke chamber should be mass market compatible... The smoke detector should only detect smoke in the air, along with other sensors on the module (temperature, luminance, humidity etc.)

          • MetMan Apprentice
            MetMan
            86 posts since
            Oct 24, 2011
            Currently Being Moderated
            Jul 26, 2012 10:31 AM (in response to Roman_)
            Optical smoke chamber

            I'd suggest dissecting some smoke detectors to see what's inside.  I suspect that the smoke sensing area will be integrated into the molded housing and is not a seperate component, which would make it hard to source. 

             

            If you're mass marketing this product you may be best served by molding/machining your own chamber, or  having it built into your housing.

            • RAWAT Novice
              RAWAT
              2 posts since
              Mar 13, 2013
              Currently Being Moderated
              Mar 13, 2013 12:53 PM (in response to MetMan)
              Optical smoke chamber

              am same intrested to do the same thing so please guide me about  that.i m intrested  for manufaturing in large scale smoke detector.i need technology,chamber etc or row metarial......please help...........if u require technical specification then mail me on my mail id

               

              this website is not much comfertable so please communicate with me on my mail id.   mailanilrawat4429@yahoo.co.in.

            • enat28 Novice
              enat28
              1 posts since
              Apr 3, 2013
              Currently Being Moderated
              Apr 3, 2013 9:39 PM (in response to MetMan)
              Optical smoke chamber

              I'm also looking for the same thing.  We are trying to build a remote air quality monitor system and one of the levels being measured is smoke.  I was looking at your smoke sensors but it needs a smoke chamber connected to it.  I was hoping if you can direct me where I can find the smoke chamber.

               

              Thanks

  • RAWAT Novice
    RAWAT
    2 posts since
    Mar 13, 2013
    Currently Being Moderated
    Mar 13, 2013 12:47 PM (in response to Roman_)
    Optical smoke chamber

    i am same intrested to do the same thing so please guide me about  that.i m intrested  for manufaturing in large scale smoke detecor.

    frist of all this website is not much comfertable so please communicate with me on my mail id.   mailanilrawat4429@yahoo.co.in.

  • SteveNordquist Novice
    SteveNordquist
    4 posts since
    Apr 27, 2013
    Currently Being Moderated
    Apr 28, 2013 12:20 AM (in response to Roman_)
    Optical smoke chamber

    Surely you want to characterize your device over the types of smoke which may come (per NFPCs) and/or be characterized by the sensors (IR haze over wavelength, etc.) and generate those particular smoke standards? (If it sticks to the lens, it wasn't optical grade smoke, right?) It used to be that field agents would be told to lay in a hot plate, some xylene, a candle and 2 ABC extinguishers, but you haven't said what size you need to test to (or whether borrowing a doublewide trailer from a dealer or XpedX isn't the trivial case,) or what Sandia Labs IP you're implementing that they didn't also offer test ignitors and smoke loads (or the related IP) for.

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