18 Jan
2011
18 Jan
'11
12:39 p.m.
Re: viewing IR beams.
You may be able to borrow an IR sensor card from a friend who works
with IR laser equipment. Alternatively, a sensor card can be had for
not a lot of money:
I wonder how such a card would manage with light pulses foa few us and a
1000:1 duty cycle...
I do have an electronic IR handset tester, built from the Maplin keit
many years ago. IR photodiode + A few trasnsitors driveing an LED. I
think there's an RC pulse stretcher circuit in there too. Runs off one of
those 12V batteries that are a bit smaller than an N cell (and FWIW, it
still runs on the battery I put in when I built it).
I could try that, but I am not sure it't tell me much...
I suspext (without checking) that the shipping would cost more than the
device...
-tony