Detecting water level with optical system has one big enemy : The algas growth!
Al.
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Detecting water level with optical system has one big enemy : The algas growth!
Al.
All progress began with an idea
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Use Ultraviolet light
Dave
Always wear safety glasses while programming.
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Originally Posted by aratti
Hi Al,
I was pretty sure You would mention that one, and prepared for it
Illuminate the tube only while checking level. A 2000 liter tank level is not likely to change very much in an hour, so check intervals do not need to occur too often, still EVENTUALLY algae is likely to occur. Perhaps make the sensor rods screw in for cleaning. Dave's UV light would work, but is expensive.
If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
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Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
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There simply is no "Happy Spam" If you do it you will disappear from this forum.
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A little shot of chlorine down the tube once and a while....
Dave
Always wear safety glasses while programming.
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Hi Joe and Dave, going this way it could happen that this thread will come up with the best water level sensor ever invented.
Al.
All progress began with an idea
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Yep, kind of makes your signature line hold true.
I was googlin around earlier for fiber optics and saw a site advertising "side glow" fiber. It appeared to light up like a neon tube.
My thought. It it would receive light into the edge ? If so then maybe the more of less exposed would change the intinsity of light at the end? Make it work backwards.
Anyone played with this stuff?
http://www.fiberopticproducts.com/Sideglow.htm
they talk about a very bright like to make it glow, so maybe it would not work...
I have not played with optics much. What would happen it a glass rod had a flat side?
Dave
Always wear safety glasses while programming.
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