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39329Re: query...

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  • abhi_6929
    Apr 27, 2009
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      --- In SeattleRobotics@yahoogroups.com, "David L Buckley" <david@...> wrote:
      >
      > Or
      > http://www.parallax.com/Portals/0/Downloads/docs/prod/stamps/web-BSM-v2.2.pdf
      > page 250
      > These can work up to maybe 18 inches.
      >
      > David
      >
      >
      >
      > --- In SeattleRobotics@yahoogroups.com, Larry Geib <LJGeib@> wrote:
      > >
      > > Here's a start to getting your creative juices flowing...
      > >
      > > http://www.kronosrobotics.com/an150/AAN150.shtml
      > >
      > > Not the LED and sensor on opposite sides of a pice of proto board and
      > > a pice of black tape as a shield.
      > >
      > > Larry
      > >
      > >
      > > On Apr 26, 2009, at 11:28 AM, abhi_6929 wrote:
      > >
      > > > hello all!!!
      > > > i have a small query regarding a project tat i m building.I want to
      > > > use an IR sensor for obstacle detection(IS471F).Now,the sensor is
      > > > supposed to be isolated from the IR LED radiation for detection
      > > > purposes.I want to know how i can achieve that.What can be used to
      > > > isolate the sensor from the IR radiation.
      > > > Apart from this i am also not sure what are the types of obstacles
      > > > that would reflect IR radiation and hence can be detected.
      > > > Any help would be appreciated...
      > > > THANKS!!!
      > > >
      > > >
      > > >
      > > > ------------------------------------
      > > >
      > > > Visit the SRS Website at http://www.seattlerobotics.orgYahoo!
      > > > Groups Links
      > > >
      > > >
      > > >
      > >
      >
      the thing is...i hav to isolate the sensor from direct IR radiation but not from the reflected radiation which is the basis for detection i.e i hav to keep sumthin between the LED and the sensor...i want to know wat cud serve the purpose...
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