Metal detector configuration - Revision history

Ypypy at 10:55, 11 April 2017

2017-04-11T10:55:54Z

2017-04-11T08:56:25Z

‎Step by step Metal Detector set up

2017-04-11T08:54:13Z

‎Step by step Metal Detector set up

2017-04-11T08:53:06Z

‎Step by step Metal Detector set up

2017-04-11T08:51:06Z

2017-04-11T08:50:09Z

2017-04-11T07:19:57Z

2017-04-11T07:19:37Z

‎CON4: metal detector winding connection

2017-04-11T07:10:31Z

2017-04-11T07:09:27Z

‎CON4 metal detector winding connection

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 |Pin 2||N.C.
 |-
-|Pin 3||Coil con 2
+|Pin 3||Coil 2
 |}
 * see CON4 position on Figure bellow.

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 . In general, a statically metal near the metal detection winding (aluminum strut profile, electromagnetic shields, iron building structures), depending on the size and design, can reduce the sensitivity of the metal detection loop. Therefore, the best sensitivity of the metal detection loop is achieved by using non-metallic racks (plastic or acrylic).
-. The acoustomagnetic systems of the rack are located near the metal detector stand. Can damage the electronics on the board. This is due to the fact that, depending on the relative position and distance (electromagnetic coupling), large levels of the emf (up to 1 kV) can be generated in the winding of the metal detector.
+. The acoustomagnetic systems of the rack are located near the metal detector stand can damage the electronics on the board. This is due to the fact that, depending on the relative position and distance (electromagnetic coupling), large levels of the emf (up to 1 kV) can be generated in the winding of the metal detector.
 :Therefore, these versions of the combi-shop are not compatible with acoustomagnetic systems in one rack.
 :Joint work with acoustomagnetic systems can be achieved by synchronizing the metal detection loop with the pump impulses of the acoustomagnetic system.

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 . In the second stage, you should choose the '''''period min (tick)''''' < '''''period avr''''' for the entire range of changes, when exposed to metal. In general, the '''''period min (tick)''''' can be selected based on the current level of '''''period avr''''' using the condition
   '''''period min''''' = '''''period avr''''' - Δ, Δ = 20 .. 100
-After setting the '''''period min''''', you should save the settings and turn off the monitoring '''''period avr'''''.
+After setting the '''''period min''''', you should turn off the monitoring '''''period avr''''' and save the settings.
 . If points 1 through 4 have been successfully passed, the metal detector operates in the normal mode and the sensitivity of the detection should be adjusted.

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 :The values of the variable '''''period avr''''' should be within the range of 50..600 units, the optimal range is 200 .. 300.
 :In normal mode, the '''''period avr''''' should change when exposed to moving metal near the winding.
-:If '''''period avr''''' = 0 - three are no generation in the loop. In this case, check the electrical connections of the winding, check the operation of the circuit with the recommended winding configuration, and if the result has not changed, the metal detection circuit is faulty.
+:If '''''period avr''''' = 0 - there are no generation in the loop. In this case, check the electrical connections of the winding, check the operation of the circuit with the recommended winding configuration, and if the result has not changed, the metal detection circuit is faulty.
 :If, under the action of the metal near the winding '''''period avr''''' = const, a failure of the generation in the circuit occurred, possibly because of the unreliable electrical connection of the winding.

← Older revision		Revision as of 08:51, 11 April 2017
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		+	__TOC__
	[[File:Combie manual coil 12.png\|right\|thumb\|Fig. 1: Recommended configuration of the metal detector winding]]		[[File:Combie manual coil 12.png\|right\|thumb\|Fig. 1: Recommended configuration of the metal detector winding]]

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 * '''state''' - the state of metal detection.
 * '''counter''' - the the lifetime metal events counter.
 [[Category:Combie-Shop]]

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 <br style='clear:both'/>
 [[File:Combie manual metaldet 2.1.png|thumb|right|450px|Fig. 3: An example of changing the state of the metal detection (state) in time depending on the indicator value (dV) and the influence of the tuning parameters (th, th in delay, th out delay)]]
 The system reacts to a moving metal in the area of the metal detector winding
 * '''dV''' - the response of the system to the metal

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 |Pin 3||Coil con 2
 |}
 [[File:Combie manual board 11.png|thumb|frame|left|450px|Fig. 2: Management Board Connectors]]

← Older revision		Revision as of 07:10, 11 April 2017
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	* '''state''' - the state of metal detection.		* '''state''' - the state of metal detection.
	* '''counter''' - the the lifetime metal events counter.		* '''counter''' - the the lifetime metal events counter.
		+
		+	[[Category:Combie-Shop]]

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 In general, the winding can be of arbitrary shape, configuration, and contain one or more turns. The parameters of the winding wiggle on the frequency of the metal detection circuit, the geometric dimensions of the winding affect the sensitivity in the detection of metal.
-=== CON4 metal detector winding connection ===
+=== CON4: metal detector winding connection ===
 {|border=1 cellpadding=5
 |-
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 <br style='clear:both'/>
 [[File:Combie manual metaldet 2.1.png|thumb|right|450px|Fig. 3: An example of changing the state of the metal detection (state) in time depending on the indicator value (dV) and the influence of the tuning parameters (th, th in delay, th out delay)]]
 == "metal" parameters group ==
 The system reacts to a moving metal in the area of the metal detector winding