NIR Optical Sorting: Difference between revisions

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The basic principle behind the NIR technology is measuring the wavelength the bounces off an object. The conveyor moves the material under a bright light which fires near infra-red wavelengths of light at the [[Recyclables|recyclables]]. Some of the wavelengths are absorbed while others are reflected by the material. The NIR sensors that are positioned in the last third of the conveyor record the characteristics of the wavelengths bounced back from the material. From there they are able to determine and target the different types of [[Recyclables|recyclables]] on the belt<ref name="ref2" />.

==The Process==

{|

|-

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#The [[Waste|waste]] material is loaded onto an accelerator or conveyor to thin the [[Recyclables|recyclables]] out

#The conveyor moves the material under a bright light which fires infra-red wavelengths of light towards it

#A series of NIR sensors that are pointed at the conveyor record the distinct light signature/fingerprint that bounces back from the [[Recyclables|recyclables]] to identify what each piece of material is

#A computer calculates the desired [[Recyclables|recyclable’s]] location and sends a blast of compressed air towards it to separate the item from the rest of the material

#The specific [[Recyclables|recyclable]] detected and removed is then blown over a material splitter to separate it from the remaining flow of [[Waste|waste]]

#Most of the sorting systems include a quality control step at the end to ensure the purity of the commodity being sorted<ref name="ref1" />

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[[File:Upward Ejection.png|550px|right|NIR Optical Sorter Diagram. All rights reserved.]]<br clear=all>''NIR Optical Sorter''<ref>[http://eaglevizion.com/optical_sorting NIR Optical Sorter Diagram]</ref>

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==References==

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 The basic principle behind the NIR technology is measuring the wavelength the bounces off an object. The conveyor moves the material under a bright light which fires near infra-red wavelengths of light at the [[Recyclables|recyclables]]. Some of the wavelengths are absorbed while others are reflected by the material. The NIR sensors that are positioned in the last third of the conveyor record the characteristics of the wavelengths bounced back from the material. From there they are able to determine and target the different types of [[Recyclables|recyclables]] on the belt<ref name="ref2" />.
+==The Process==
+{|
+|-
+|
+#The [[Waste|waste]] material is loaded onto an accelerator or conveyor to thin the [[Recyclables|recyclables]] out
+#The conveyor moves the material under a bright light which fires infra-red wavelengths of light towards it
+#A series of NIR sensors that are pointed at the conveyor record the distinct light signature/fingerprint that bounces back from the [[Recyclables|recyclables]] to identify what each piece of material is
+#A computer calculates the desired [[Recyclables|recyclable’s]] location and sends a blast of compressed air towards it to separate the item from the rest of the material
+#The specific [[Recyclables|recyclable]] detected and removed is then blown over a material splitter to separate it from the remaining flow of [[Waste|waste]]
+#Most of the sorting systems include a quality control step at the end to ensure the purity of the commodity being sorted<ref name="ref1" />
+||
+[[File:Upward Ejection.png|550px|right|NIR Optical Sorter Diagram. All rights reserved.]]<br clear=all>''NIR Optical Sorter''<ref>[http://eaglevizion.com/optical_sorting NIR Optical Sorter Diagram]</ref>
+|}
 ==References==
 <references />