Whats a good, fast, cheap sensor for a laser?
Whats a good, fast, cheap sensor for a laser?
(OP)
I am looking for a fast, inexpensive laser sensing component. Any ideas. The cheaper the better.
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Whats a good, fast, cheap sensor for a laser?
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RE: Whats a good, fast, cheap sensor for a laser?
RE: Whats a good, fast, cheap sensor for a laser?
Wheels within wheels / In a spiral array
A pattern so grand / And complex
Time after time / We lose sight of the way
Our causes can't see / Their effects.
RE: Whats a good, fast, cheap sensor for a laser?
650nm, Spot? .125 spot, and power I am not too sure about. Photodiodes are like 4 bucks each. Thats a little high for me. LDR's can be cheap, but I am concerned about their dissipation rate.
What do you think?
and thanks again.
RE: Whats a good, fast, cheap sensor for a laser?
Wheels within wheels / In a spiral array
A pattern so grand / And complex
Time after time / We lose sight of the way
Our causes can't see / Their effects.
RE: Whats a good, fast, cheap sensor for a laser?
RE: Whats a good, fast, cheap sensor for a laser?
Wheels within wheels / In a spiral array
A pattern so grand / And complex
Time after time / We lose sight of the way
Our causes can't see / Their effects.
RE: Whats a good, fast, cheap sensor for a laser?
I want to be able to determine how long my sensor is blocked. So for starters, I need to know what type of sensor to use. You suggested a photodiode so I will look into that (thanks). Next I need to know how to wire it so that ambient fluctuation does not interfer with my readings. I just want to know if the laser is blocked and for how long.
RE: Whats a good, fast, cheap sensor for a laser?
TTFN
RE: Whats a good, fast, cheap sensor for a laser?
TTFN
RE: Whats a good, fast, cheap sensor for a laser?
A
RE: Whats a good, fast, cheap sensor for a laser?
You can also filter your detector, similar to TV remotes
TTFN
RE: Whats a good, fast, cheap sensor for a laser?
I am planning to use the black housing. THe PIN doiode is a cool idea, I will look into that.
How do I wire up the diode? Is there anything I should consider? I just want to be able to know when it is on or off, and it needs to be pretty fast.
I will probably not respond anymore until later tonight.
Thanks for all the help. and please keep any ideas coming.
RE: Whats a good, fast, cheap sensor for a laser?
Hamamatsu, a major manufacturer of photodiodes has some good app notes, here are some links to get you rolling:
http:
http://usa.hamamatsu.com/index.php?id=13196002
Good LucK
-Pete
Wheels within wheels / In a spiral array
A pattern so grand / And complex
Time after time / We lose sight of the way
Our causes can't see / Their effects.
RE: Whats a good, fast, cheap sensor for a laser?
Thanks
Mike
RE: Whats a good, fast, cheap sensor for a laser?
use selective amplifier. Radio Schack had a 40kHz
receiver module years ago.
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