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Re: [SeattleRobotics] A New Indoor Game

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  • kevinr
    I think obtaining ten measurements of IR at spaced frequencies through the various chemical signature areas would be sufficient. A stage or two of signal
    Message 1 of 10 , Oct 7, 2013
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      I think obtaining ten measurements of IR at spaced frequencies through the various chemical "signature" areas would be sufficient.  A stage or two of signal conditioning after each frequency's sensor could be used to feed a neural net "recognizer".  This would "decide" which scent is stronger at any given time.  I don't think this is being done at the present but any interesting problem is hard to solve.  I think of this as a challenge.  I would like to apply the techniques learned to allow me to do the same measurements in a forest.  The many terpenes present could be measured to provide an analysis of the health of the trees.
          Kevin.


      On 10/7/2013 5:00 PM, kevinr wrote:
       

      Any standard spectroscopy text book would do fine.
          KD5ONS

      On 10/7/2013 4:53 PM, KM6VV wrote:
       

      Determine scents with IR? How is that? Do you have a reference?

      Alan KM6VV

      On 10/7/2013 3:55 PM, kevinr wrote:
      >
      >
      > I have been thinking of how to discern scents. With an IR spectroscope
      > I can determine vanilla, lavender, and cinnamon. Other scents may have
      > more easily determined IR spectra but these will smell OK while you run
      > the event. You could have a scent at each site or you could make trails
      > of each scent to get to a goal. This way you could test your ability
      > to determine a number of IR frequencies at once.
      > Kevin.
      >
      >
      >



    • KM6VV
      Sounds a little bit deep for my dumb bots! I d be more inclined to use modulated IR beacons around a room. Alan KM6VV
      Message 2 of 10 , Oct 7, 2013
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        Sounds a little bit deep for my dumb 'bots!

        I'd be more inclined to use modulated IR beacons around a room.

        Alan KM6VV

        On 10/7/2013 5:00 PM, kevinr wrote:
        >
        >
        > Any standard spectroscopy text book would do fine.
        > KD5ONS
        >
        > On 10/7/2013 4:53 PM, KM6VV wrote:
        >>
        >> Determine scents with IR? How is that? Do you have a reference?
        >>
        >> Alan KM6VV
        >>
        >> On 10/7/2013 3:55 PM, kevinr wrote:
        >> >
        >> >
        >> > I have been thinking of how to discern scents. With an IR spectroscope
        >> > I can determine vanilla, lavender, and cinnamon. Other scents may have
        >> > more easily determined IR spectra but these will smell OK while you run
        >> > the event. You could have a scent at each site or you could make trails
        >> > of each scent to get to a goal. This way you could test your ability
        >> > to determine a number of IR frequencies at once.
        >> > Kevin.
        >> >
        >>
      • KM6VV
        You re saying that various scents generate IR? Hadn t heard of that. So would you have to heat the samples to analyze them? Alan KM6VV
        Message 3 of 10 , Oct 8, 2013
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          You're saying that various scents generate IR? Hadn't heard of that.
          So would you have to heat the samples to analyze them?

          Alan KM6VV

          On 10/7/2013 5:19 PM, kevinr wrote:
          >
          >
          > I think obtaining ten measurements of IR at spaced frequencies through
          > the various chemical "signature" areas would be sufficient. A stage or
          > two of signal conditioning after each frequency's sensor could be used
          > to feed a neural net "recognizer". This would "decide" which scent is
          > stronger at any given time. I don't think this is being done at the
          > present but any interesting problem is hard to solve. I think of this
          > as a challenge. I would like to apply the techniques learned to allow
          > me to do the same measurements in a forest. The many terpenes present
          > could be measured to provide an analysis of the health of the trees.
          > Kevin.
          >
          >
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