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Offline reza virTopic starter
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« on: July 17, 2016, 06:45:18 am »
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please help for make loop
my out device 12volt for loop
my loop 20cm  1.2ohm   345mh
my metal detector not sens metal no beeb voice Huh?



{alt}

The problem in the coils
  And lack of Sense Field

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« Last Edit: August 18, 2016, 12:27:00 pm by nickel_n »
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Offline Homefire
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« Reply #1 on: July 17, 2016, 06:51:40 am »
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    Is the detector working at all ?  Can you get the motor boat sound ?  Please post the schematic.

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« Reply #2 on: August 18, 2016, 11:22:07 am »
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Thanks for the answer
A few examples worked well, but it does not sound







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« Reply #3 on: August 18, 2016, 01:03:48 pm »
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  What size is the Coil ?  Do you have the rest of the artical or the Detectors name ?

Do you have access to a scope ?

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« Last Edit: August 18, 2016, 01:33:27 pm by homefire »
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« Reply #4 on: August 18, 2016, 01:11:15 pm »
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Quote:Posted by homefire
 What size is the Coil ?  Do you have the rest of the artical or the Detectors name ?

that's the ETI561 project metal detector.
its on geotech's web side

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http://www.geotech1.com/pages/metdet/projects/eti561/eti561_150.pdf


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« Last Edit: August 18, 2016, 01:12:10 pm by nickel_n »
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« Reply #5 on: August 18, 2016, 01:34:35 pm »
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  Seen it before but case of CRS.  Can't Remember Shite.   

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« Reply #6 on: August 30, 2016, 02:09:36 am »
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Hello
  I've made different sizes
Loop for this device


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« Reply #7 on: August 30, 2016, 08:41:20 am »
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   Do you have access to a O scope or a Freq Counter ?

It would help to know if the oscillators are working.  

Did you substitute any parts ?

Have you check to see if your power supply is making it to the chips ?

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« Last Edit: August 30, 2016, 09:11:49 am by homefire »
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