Re: [CAD_CAM_EDM_DRO] Home switch testing?

----- Original Message -----
From: "Torsten" <torsten@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, January 04, 2004 11:45 PM
Subject: [CAD_CAM_EDM_DRO] Home switch testing?


> Hi, I just received some slotted opto sensors
> that I was planning on using for home sensors
> on my retrofit.
> This is where I got them from.
>
> http://www.allelectronics.com/cgi-bin/category.cgi?
> category=435&item=OSU-50&type=store
>
> They have 4 leads on the bottom two are for 6 volt
> power + and - and the other 2 are suppost to be
> a normaly closed switch wich is disrupted when a
> deflective object is penetrating the slot.
> With my obvious limited knowledge about electronics
> I tryed to hook the sensor up to test its function
> using a couple of D cell batterys a 6 volt powersupply
> a small voltage lightbulb and a multytester for electronics.
> I have not been able to get this sensor to do any kind
> of verifyable disruption yet.
> I tested on 2 of the leads was continuety so I figured
> this must be the switch side.
> Testing to disrupt the lightbulb did not work in any of the
> various ways I tryed to set this up.
> Could any of the more electricly gifted persons please point
> out what I am doing wrong here.
> I suspect this may not work the way I think it would.
> The 2 sensing leads are suppost to be hooked up on 2 pins
> of the Parallel port of the PC, have not tryed this yet.
> How could I set this up for testing.
>
>
>
>
>
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