Greg Miller Three Basic Types Optical Ionization AirSampling Optical and Optical Beam Optical Source Incandescent or LED Lens Optical sensor photodiode Optical Beam Light Intensity Large Open Room ID: 215313
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Slide1
Smoke Detectors
Greg MillerSlide2
Three Basic Types
Optical
Ionization
Air-SamplingSlide3
Optical and Optical Beam
Optical
Source (Incandescent or LED)
Lens
Optical sensor (photodiode)
Optical BeamLight IntensityLarge Open RoomSlide4
IonizationSlide5
Aspirating Smoke Detectors
Even Sample Distribution
Solid State Laser
Auto Fire Response
Extremely Accurate
Multiple Response LevelsSlide6
Aspirating Smoke DetectorSlide7
Comparison
Type of Detector
Obscuration Level
Ionization
2.6-5.0 % obs/m
Photoelectric
6.5 - 13.0 % obs/m
Beam
3 % obs/m
Aspirating
0.005-20.5 %
obs
/mSlide8
ApplicationSlide9
References
http://extension.missouri.edu/explore/images/g01907art03.jpg
http://simsburyfire.org/Pages/FMO/Images/ionization.jpg
http://
en.wikipedia.org/wiki/Optical_beam_smoke_detectorhttp://en.wikipedia.org/wiki/Photodiode
http://en.wikipedia.org/wiki/File:Smokealarm.JPGhttp://
xtralis.com/misc/VESDA-Detector-Face.jpg
http://
img.alibaba.com/photo/112472225/AIR_Intelligence_Aspirated_Smoke_Detection.jpg
http://
rodentstrobe.com/housefire.jpg