CN205608202U - Hand -held type metal detector - Google Patents
Hand -held type metal detector Download PDFInfo
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- CN205608202U CN205608202U CN201620244340.3U CN201620244340U CN205608202U CN 205608202 U CN205608202 U CN 205608202U CN 201620244340 U CN201620244340 U CN 201620244340U CN 205608202 U CN205608202 U CN 205608202U
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- metal detector
- reverse winding
- handheld metal
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Abstract
The utility model discloses a hand -held type metal detector, include handle and the probe that links to each other with it, the loop construction that is equipped with the host computer in the probe and links to each other with it, its characterized in that: the loop construction includes first coil, second coil, and first coil and second coil are connected with the electromagnetic coupling mode, and wherein first coil includes forward coil and reverse winding, and the forward coil is connected with the reverse winding is reverse. The utility model discloses a hand -held type metal detector, easily the workman carries out installation and debugging, can improve its interference killing feature and production efficiency.
Description
Technical field
This utility model relates to safety check metal detector, especially a kind of Handheld metal detector.
Background technology
Metal detector is widely used in every field.AT STATION, airport, amusement place and other places, detector all can be installed.Whether detector detects on the person in a non-contact manner with metal.Such as, Handheld metal detector and detector gate are all one of which detectors, equipped with transmitting coil and receiving coil inside hand-held detector.In time having metal near detector, the eddy current effect that metal produces can affect the magnetic field around detector, and at this moment receiving coil can produce faradic current, and induced voltage changes therewith.Situation is changed, it can be determined that whether with the presence of metallics by the induced voltage of detection receiving coil.
(refer to Fig. 1) in prior art, the loop construction of part Handheld metal detector includes transmitting coil 101, receiving coil 102.Each coil is coiled into by enamel-covered wire, and two taps of last coil are connected on the main frame of Handheld metal detector.Coil production adjustment method is that as shown by arrows in FIG., solid arrow represents the direction of winding of receiving coil 102, and dotted arrow represents the direction of winding offsetting coiling 103, and both direction of windings are contrary as offsetting coiling 103 by the part of transmitting coil 101.Offset coiling 103 area by regulation thus adjust the amplitude of the induced voltage of receiving coil 102 so that it is meet analog circuit level demand.This method needs workman the most constantly to adjust counteracting coiling 103 part, and tests induced voltage amplitude in this case simultaneously, and offsets the adjustable space of coiling 103 part very greatly, thus results in production efficiency low.On the other hand, Handheld metal detector, owing to only having unidirectional receiving coil 102 in design, is easily subject to the interference in the external world, easily causes erroneous judgement when practical operation.It is thus desirable to the loop construction of a kind of new Handheld metal detector, to improve the efficiency producing Handheld metal detector, it is easy to workman carries out installation and debugging and improves the capacity of resisting disturbance of Handheld metal detector.
Utility model content
Task of the present utility model is to provide a kind of new Handheld metal detector, to improve the efficiency producing Handheld metal detector, it is easy to workman carries out installation and debugging and improves the capacity of resisting disturbance of detector.For achieving the above object, this patent adopts the following technical scheme that
A kind of Handheld metal detector, including handle and the probe being attached thereto, main frame and the loop construction being attached thereto it is provided with in probe, it is characterized in that: described loop construction includes first coil, the second coil, first coil and the second coil connect in electromagnetic coupled mode, wherein first coil includes forward coil and reverse winding, forward coil and reverse winding Opposite direction connection.
Preferably, described forward coil and reverse winding are the identical number of turn and identical shape size.
Preferably, described forward coil is non-intersect with reverse winding.
Preferably, described forward coil is symmetrical arranged with reverse winding.
Preferably, described first coil is transmitting coil, and the second coil is receiving coil.
Preferably, described first coil is receiving coil, and the second coil is transmitting coil.
Have employed above-mentioned Handheld metal detector, solve installation and debugging Handheld metal detector inefficiency and the problem being easily disturbed.Thus improve the capacity of resisting disturbance of detector, and then the production of Handheld metal detector, installation, debugging efficiency are greatly improved.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the prior art of the loop construction of this utility model Handheld metal detector；
Fig. 2 is the first embodiment schematic diagram of the loop construction of this utility model Handheld metal detector；
Fig. 3 is the structural representation of the first coil of the loop construction of this utility model Handheld metal detector；
Fig. 4 is the second embodiment schematic diagram of the loop construction of this utility model Handheld metal detector.
Fig. 5 is the structural representation of this utility model Handheld metal detector.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, but protection domain of the present utility model is not limited to the scope of embodiment statement.
This utility model Handheld metal detector, has the advantages that capacity of resisting disturbance is strong.
With reference to Fig. 2, Fig. 5；Fig. 2 is the first embodiment schematic diagram of the loop construction of this utility model Handheld metal detector；Fig. 5 is the structural representation of this utility model Handheld metal detector.Described Handheld metal detector, including handle 205 and the probe 207 being attached thereto, be provided with in probe 207 main frame 206 and be attached thereto loop construction, it is characterized in that: described loop construction includes first coil the 201, second coil 202, first coil 201 and the second coil 202 connect in electromagnetic coupled mode, wherein first coil 201 includes forward coil 203 and reverse winding 204, forward coil 203 and reverse winding 204 Opposite direction connection.Two end points of first coil 201 and the second coil 204 are connected respectively to the main frame of detector.
Main frame 206 is used for controlling, and transmission pumping signal, to one of them coil, owing to first coil 201 and the second coil 202 connect in electromagnetic coupled mode, can measure the inductive voltage value of another coil.
It it is the structural representation of the first coil 201 of the loop construction of this utility model Handheld metal detector with further reference to Fig. 3, Fig. 3.In coiling rule, the direction of winding of the second coil 202 can use direction clockwise or counter-clockwise.Forward coil 203 in first coil 201 is contrary with the direction of winding of reverse winding 204, i.e. forward coil 203 and reverse winding 204 Opposite direction connection.If forward coil 203 uses direction of winding clockwise, then reverse winding 204 uses anti-clockwise windings direction, if forward coil 203 uses anti-clockwise windings direction, then reverse winding 204 uses direction of winding clockwise.Number of turns in Fig. 3 determines according to actual needs.
According to above-mentioned coiling rule, when the second coil 202 is by the electric current of change, by regulation forward coil 203 or the size surrounded of reverse winding 204, the magnetic induction effect that forward coil 203 produces just is offset with the magnetic induction effect that reverse winding 204 produces.
In some embodiments, forward coil 203 and reverse winding 204 are to have the identical number of turn and identical size, are provided with the identical number of turn and identical size, and forward coil 203 is non-intersect with reverse winding 204, is symmetrical arranged.The size of coil refers to the size that coil is surrounded.Concrete, with reverse winding 204 at grade, both area defined are non-intersect, and are symmetrical set for forward coil 203.When first coil 201 is by the electric current of change, the magnetic induction effect that the magnetic induction effect that forward coil 203 produces and reverse winding 204 produce cancels each other substantially.For making it meet analog circuit level demand, in process of production, it is only necessary to forward coil 203 or reverse winding 204 to be done the adjustment of slight size, shape, position, such that it is able to improve production efficiency.
Refer to the second embodiment schematic diagram that Fig. 4, Fig. 4 are the loop constructions of this utility model Handheld metal detector.Contrast above-mentioned first embodiment, difference is the disposing way of first coil 201, above-described embodiment uses left and right form to place, and the second embodiment uses upper and lower form to place, arrange with coil turn shape, size, the number of turn consistent with the mode of above-mentioned first embodiment in coiling rule, the most just repeat no more.
In some embodiments, described first coil 201 is transmitting coil, and the second coil 202 is receiving coil.
In some embodiments, described first coil 201 is receiving coil, and the second coil 202 is transmitting coil.
Concrete, according to actual needs, if arranging first coil 201 is transmitting coil, accordingly, it will arranging the second coil 202 is receiving coil；If arranging first coil 201 is receiving coil, accordingly, it will arranging the second coil 202 is transmitting coil.The electromagnetic signal that described transmitting coil sends is to be produced by main frame 206 signal stimulating module, according to electromagnetic induction principle, receiving coil can produce faradic current and inductive voltage value, and main frame 206 detects inductive voltage value and judges it, completes the detection function of detector.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Skilled artisan would appreciate that, utility model scope involved in the application, it is not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should contain in the case of conceiving without departing from described utility model, other technical scheme being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed simultaneously.Such as features described above and (but not limited to) disclosed herein have the technical characteristic of similar functions and replace mutually and the technical scheme that formed.
Claims (6)
1. a Handheld metal detector, including handle and the probe being attached thereto, main frame and the loop construction being attached thereto it is provided with in probe, it is characterized in that: described loop construction includes first coil, the second coil, first coil and the second coil connect in electromagnetic coupled mode, wherein first coil includes forward coil and reverse winding, forward coil and reverse winding Opposite direction connection.
Handheld metal detector the most according to claim 1, it is characterised in that: described forward coil and reverse winding are the identical number of turn and identical shape size.
Handheld metal detector the most according to claim 2, it is characterised in that: described forward coil is non-intersect with reverse winding.
Handheld metal detector the most according to claim 3, it is characterised in that: described forward coil is symmetrical arranged with reverse winding.
Handheld metal detector the most according to claim 4, it is characterised in that: described first coil is transmitting coil, and the second coil is receiving coil.
Handheld metal detector the most according to claim 4, it is characterised in that: described first coil is receiving coil, and the second coil is transmitting coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620244340.3U CN205608202U (en) | 2016-03-25 | 2016-03-25 | Hand -held type metal detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620244340.3U CN205608202U (en) | 2016-03-25 | 2016-03-25 | Hand -held type metal detector |
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| Publication Number | Publication Date |
|---|---|
| CN205608202U true CN205608202U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620244340.3U Active CN205608202U (en) | 2016-03-25 | 2016-03-25 | Hand -held type metal detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700023A (en) * | 2016-03-25 | 2016-06-22 | 东莞市华盾电子科技有限公司 | Handheld metal detector |
-
2016
- 2016-03-25 CN CN201620244340.3U patent/CN205608202U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700023A (en) * | 2016-03-25 | 2016-06-22 | 东莞市华盾电子科技有限公司 | Handheld metal detector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |