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 > > > > > > > > > > > http://www.angelfire.com/scifi2/zpt/temp/PlasticCir.mp4 >

