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Offline hrthomasTopic starter
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« on: February 06, 2019, 05:38:08 am »
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Hi
Im planning on making a PI detector, I want to locate small items of aluminium from cans (soda and beer cans)
I`m planning on making the objects go through the coil, and detect it there. But there are so many diy kits and so on.. what is the best one for this job?? The smallest items i need to detect will be pieces of about 1-1,5x 1- 1,5 cm (0,5x0,5ft), and the coil could not be smaller than about 20cm (0,65ft)..

Thanks for all feedback:)

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« Reply #1 on: February 06, 2019, 01:29:38 pm »
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   Is this going to be the sole purpose of the Detectors life ?   As in like a Processing Plant situation ?

We have a number of circuits that could fit that bill.  Even the most Basic of Basic could be up to that task/

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« Reply #2 on: February 06, 2019, 06:29:24 pm »
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Not accepting any new downloads in download area. What !!!   Shocked

Where is Website Boss Huh? Cry

Fix it, Please.

I will try again. I have 14 small folders !!  Great

Eugene

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Offline hrthomasTopic starter
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« Reply #3 on: March 05, 2019, 12:51:17 pm »
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yes it will be in a plant,.
do you have a specific model you could recomend me? I have testet some models like surf pi and minipulse, but I could not get any of them to do the job..



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« Reply #4 on: March 05, 2019, 06:55:01 pm »
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How large a area do you need to  cover ?   What are the circumstances ?  On a Belt ?   Vat ?  Open Ground ?

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« Reply #5 on: March 07, 2019, 02:05:54 pm »
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hi it will be about 20cm, and it will fall through the coil, and on to a belt.

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« Reply #6 on: March 07, 2019, 02:38:50 pm »
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Quote:Posted by hrthomas
hi it will be about 20cm, and it will fall through the coil, and on to a belt.

I don't know why the MPP (minipulse) or Surf Pi wouldnt have worked in this situation. Both work well and can be modified to change timings etc quite easily.

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« Reply #7 on: March 13, 2019, 10:04:05 am »
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Yes, I also hoped that would work, but it only get the big pieces... What would you recommend to set the timing and so on at? On mpp I can adjust the pulse width and time etc.. and what is the best way to make the coil? My coil is 409uh (messured) and 2,3ohm..

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« Last Edit: March 13, 2019, 10:57:55 am by hrthomas »
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« Reply #8 on: August 25, 2020, 07:26:30 am »
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search for clone pi w, it has led bargraph indicator, you can use higher level led output from microcontroller to switch a releay via transitor, so you can swith some electronics after
if you use it in a lumber fabric it could be integrated to stop the belt where the wood is transported

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my machines at work http://mueller-meteoriten.de


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