Thank you Harry.  The polarizing technique almost works.  I don't need a robot. 
 A vacuum hose sucks up one bottle at a time from a bin.  The vacuum in the 
blocked hose retracts the hose.  We then test it and spit it one way of the 
other with another blast of air. Upon release of the bottle the hose goes down 
again on its own.   Howard has built the suck up machine.  One moving part was 
required.  Its a bit slow but we could have many.  I am the one delaying the 
project.


Frank


He wants to devise a scanning method that identifies the type plastic without 
the need for labels.
The optical properties of each plastic type would act like a natural bar code.


Harry





-----Original Message-----
From: H Veeder <[email protected]>
To: vortex-l <[email protected]>
Sent: Thu, Feb 27, 2014 1:07 pm
Subject: Re: [Vo]:Plastic detector find


Terry,


Are you being funny?

With barcodes and scanners cashiers don't need to read to price labels.


He wants to devise a scanning method that identifies the type plastic without 
the need for labels.
The optical properties of each plastic type would act like a natural bar code.


Harry




On Thu, Feb 27, 2014 at 12:35 PM, Terry Blanton <[email protected]> wrote:

On Thu, Feb 27, 2014 at 11:43 AM,  <[email protected]> wrote:
> Thank you Jones.  I want to detect the bottles before they are shredded and
> washed.

Why don't you just read the code off the bottom of the bottle?

http://en.wikipedia.org/wiki/Plastic_recycling





Reply via email to