Subject:
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light reading for playfeild
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Sat, 21 Apr 2001 21:11:17 GMT
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Viewed:
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536 times
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OK, I Brought a RCX with a light sensor to work to measure the reading
of the playfeild.
I've got good news and bad news.
First: I was too lazy to bring the entire playfeild up stairs and lay it
out JUST to take a light reading. So I painted a small 10" x 10" (sorry
Iain) square of plywood with the same paint. I put down 2 coats. and
allowed each to dry. this is darn close to the original. (in the
original we used some other light colour paint as a primer)
Then I put down a strip of electric tape, then I put down a strip of
White gaff tape (since I forgot to bring the white electrical tape.)
Next I took some measurements.
NOW the bad news
The day was overcast. I had all the florescent lights on. at 1" from
the surface these area the reading I got.
grey playfeild - 46%
Black tape - 34%
White gaff - 51%
What's bad about this is that the difference in number between white and
grey is small.
So I put down a strip of masking tape (regular colour) And a strip of
misc. yellow tape.
masking tape - 48%
yellow tape - 49%
All these numbers are VERY unscientific. But it gives and Idea. As
always show up with the ability to change your program.
Let me know if this causes anyone stress.
Chris
Visit my newly revamped walker page @
http://www.members.home.net/cmagno/technics/index.htm
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