All Questions
6
questions
0
votes
1
answer
89
views
IR laser detection
I'm currently trying to characterise a NIR 940nm laser device that I have recently made. The main thing I want to achieve is to see if the laser is truly doing what the enable signal told it to.
I ...
- 11
3
votes
2
answers
169
views
How can I detect when football passes through a hula hoop?
How can I measure whether a football passes through a hula hoop? The main challenge is the need for outdoor use, which presents difficulties due to the presence of ambient light (sunlight).
It might ...
- 31
0
votes
2
answers
146
views
Is there such thing as a Laser beam detector that returns a non binary result?
As the title implies , i'm looking for a device that can detect at what point a laser beam has been broken. So idea would be the device to output a certain voltage depending on where someone's finger ...
0
votes
1
answer
232
views
How to detect obstacles (Tripwire with Laser, IR or similar)
Supposing I have a glass sheet 50cm x 30cm, with 10 holes (2 lines x 5 columns), with metal/plastic (i can chose) pins inside it. They can be flush (hidden in the hole) or salient (extending 2mm above,...
- 103
6
votes
2
answers
589
views
1kHz Laser Detection
Has anyone got an ideas about how these guys made this system?
http://www.youtube.com/watch?v=mlyVThcNRE4
I think they are using a 555 timer to power the laser at 1kHz. But then I don't know how ...
- 91
0
votes
1
answer
272
views
Detecting Multiple Lasers
I'm looking to design a game where players fire a gun at a target using LASERS or IR. The target only registers a hit when a certain amount of players (say 3) are hitting the target consistantly for ...
- 91