If you serialize the flow of plastic particles, each particle is analyzed
based on it own optical characterization. To get high speed throughput,
Process a 1000 particles a second one at a time. Multiple parallel particle
paths can provide any level of desired throughput.


On Thu, Feb 27, 2014 at 1:17 PM, <[email protected]> wrote:

> Need Ideas.  video linked below 3mb type mp4.
>
>  http://www.angelfire.com/scifi2/zpt/temp/PlasticCir.mp4
>
>  Conditon #1   Two opposed circular polarizers block the light.
>
>  Condition #2   #1 PET plastic between the polarizers lets in the light.
>  The effect is dramatic and easily detectable.
>
>  Condtion #3    Other plastics #2, and #7 block the light.  #3 #4 are not
> bottles.  We do not want colored plastic.
>
>  Condition #4   #5 Plastic lets the light through in colors.  The
> intensity is a little lower than #1.  This intensity effect or the light
> scattering is not robust enough to separate dirty, crushed bottles.
>
>  Condition #5  #1 plastic behind the the #5 plastic within the detector
> kills the colors.
>
>
> What is going on?  I believe that the #5 is rotating the axis
> of polarization and that the #1 is randomizing the polarization.  I have
> found no way to separate these conditions.  I tried liner polarizers and
> circular polarizers in both conditions of rotation.  The effect is always
> the same.
>
>  Frank Z
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>   http://www.angelfire.com/scifi2/zpt/temp/PlasticCir.mp4
>

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