Musicmanager
Well-Known Member
Hi Guys
A bit of maybe useful info .. .. .. .. .
I've a project on the go at the moment that includes collecting a signal generated from an IR LED and a photodiode which are 'looking' at a large nylon sprocket.
I milled some slots in the sprocket just wide enough to house a suitable strip of reflective tape, however, I discovered that centrifugal force kept loosening the tape until it disappeared.
I tried various 'standards' of white gloss paint and whilst they reflect IR some of the time they are affected significantly by ambient light.
I've found some paint known as 'Starglow', actually intended for UV reflection, that copes very nicely with IR and of course, stays put. It is also unaffected by ambient light.
www.glowtec.co.uk will tell you all you need to know
S
A bit of maybe useful info .. .. .. .. .
I've a project on the go at the moment that includes collecting a signal generated from an IR LED and a photodiode which are 'looking' at a large nylon sprocket.
I milled some slots in the sprocket just wide enough to house a suitable strip of reflective tape, however, I discovered that centrifugal force kept loosening the tape until it disappeared.
I tried various 'standards' of white gloss paint and whilst they reflect IR some of the time they are affected significantly by ambient light.
I've found some paint known as 'Starglow', actually intended for UV reflection, that copes very nicely with IR and of course, stays put. It is also unaffected by ambient light.
www.glowtec.co.uk will tell you all you need to know
S