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sensor to detect soccer ball

jimbond

Feb 23, 2015
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which sensor is more suitable for detecting the entry of a soccer ball crossing a frame?
 

Tha fios agaibh

Aug 11, 2014
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Depends how large the fame is.
A photo sensor would work, but if its a long distance a sensor with separate transmitter and receiver would be best.
If you want to cover a large area like a soccer net, I would use a light curtain sensor.
 

jimbond

Feb 23, 2015
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Hello thanks for the answer, I want to make a 1mx1m frame with sensor to detect a soccer ball crossing it at 100km\h aprox
 

davenn

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Sep 5, 2009
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a 1m x 1m frame = about 2x the size of the ball approx. .... what are you specifically trying to do ?
as in .... tell us more about the situation
 

KrisBlueNZ

Sadly passed away in 2015
Nov 28, 2011
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I guess one option would be a two-dimensional grid of beams of some kind of light, probably lasers pointing at photodetectors, with the beams in each axis spaced closer together than the diameter of the ball. You would need some pretty fast acquisition logic and some clever calculations if you wanted to work out any of the dynamic parameters such as position, direction and speed, but just detecting the ball wouldn't be difficult.
 

jimbond

Feb 23, 2015
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I am doing The finall proyect of engeniering and i want to make something like borussia dormunt machines, you can see here: :
 

Tha fios agaibh

Aug 11, 2014
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I didn't understand a word of the video. Lol.
I would use an emitter and receiver sensor made a company like Omron or Banner. Two small mirrors placed 1/3 and 2/3 the way up the opposite side will allow light path continuity from emitter to receiver.
 

jimbond

Feb 23, 2015
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And what about the trigger time and de response time, it must be fast becouse the ball it is.
I found sensors for house alarms on ebay but i dont thik that it Works due to the above reasons
 

BobK

Jan 5, 2010
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Say the ball blocks a sensor for 10cm of it's flight path. That is 3.6mS. Plenty of time for a phototransistor to respond.

Bob
 
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