CN105700023A - Handheld metal detector - Google Patents
Handheld metal detector Download PDFInfo
- Publication number
- CN105700023A CN105700023A CN201610182860.0A CN201610182860A CN105700023A CN 105700023 A CN105700023 A CN 105700023A CN 201610182860 A CN201610182860 A CN 201610182860A CN 105700023 A CN105700023 A CN 105700023A
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- Prior art keywords
- coil
- metal detector
- handheld metal
- reverse winding
- handheld
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses a handheld metal detector which comprises a handle and a probe which is connected with the handle. The probe is internally provided with a host machine and a coil structure which is connected with the host machine. The handheld metal detector is characterized in that the coil structure comprises a first coil and a second coil; the first coil is connected with the second coil in an electromagnetic coupling manner; the first coil comprises a forward coil and a backward coil; and the forward coil is reversely connected with the backward coil. The handheld metal detector of the invention has advantages of facilitating mounting and debugging by a worker, and improving interference resistance and production efficiency.
Description
Technical field
The present invention 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 have metallics to exist by detecting the induced voltage of 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 be with transmitting coil 101 partly as offset coiling 103, as shown by arrows in FIG., solid arrow represents the direction of winding of receiving coil 102, dotted arrow represent offset coiling 103 direction of winding, both direction of windings are contrary。Coiling 103 area is offset thus adjusting the amplitude of the induced voltage of receiving coil 102 so that it is meet analog circuit level demand by regulating。This method needs workman repeatedly 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, it is easy to cause 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。
Summary of the invention
The task of the present invention 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 and reverse winding are symmetrical arranged。
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 improving 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 Handheld metal detector of the present invention；
Fig. 2 is the first embodiment schematic diagram of the loop construction of Handheld metal detector of the present invention；
Fig. 3 is the structural representation of the first coil of the loop construction of Handheld metal detector of the present invention；
Fig. 4 is the second embodiment schematic diagram of the loop construction of Handheld metal detector of the present invention。
Fig. 5 is the structural representation of Handheld metal detector of the present invention。
Detailed description of the invention
Below in conjunction with drawings and embodiments, the invention will be further described, but protection scope of the present invention is not limited to the scope of embodiment statement。
Handheld metal detector of the present invention, 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 Handheld metal detector of the present invention；Fig. 5 is the structural representation of Handheld metal detector of the present invention。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 sends 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 Handheld metal detector of the present invention with further reference to Fig. 3, Fig. 3。In coiling rule, the direction of winding of the second coil 202 can adopt 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 adopts direction of winding clockwise, then reverse winding 204 adopts anti-clockwise windings direction, if forward coil 203 adopts anti-clockwise windings direction, then reverse winding 204 adopts direction of winding clockwise。Number of turns in Fig. 3 is determined according to actual needs。
According to above-mentioned coiling rule, when the second coil 202 is by the electric current of change, by regulating the defined size of forward coil 203 or reverse winding 204, the magnetic induction effect that the magnetic induction effect that forward coil 203 produces produces with reverse winding 204 is just offset。
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 defined。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 produces with reverse winding 204 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 Handheld metal detector of the present invention。Contrast above-mentioned first embodiment, it is distinctive in that the disposing way of first coil 201, above-described embodiment adopts left and right form to place, and the second embodiment adopts 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, just repeat no more here。
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 for transmitting coil, accordingly, it will arranging the second coil 202 is receiving coil；If arranging first coil 201 for 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 it judged again, 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, invention scope involved in the application, it is not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, when also should be encompassed in without departing from described inventive concept simultaneously, other technical scheme being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed。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。
2. Handheld metal detector 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。
3. Handheld metal detector according to claim 2, it is characterised in that: described forward coil is non-intersect with reverse winding。
4. Handheld metal detector according to claim 3, it is characterised in that: described forward coil and reverse winding are symmetrical arranged。
5. Handheld metal detector according to claim 4, it is characterised in that: described first coil is transmitting coil, and the second coil is receiving coil。
6. Handheld metal detector according to claim 5, 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 |
|---|---|---|---|
| CN201610182860.0A CN105700023A (en) | 2016-03-25 | 2016-03-25 | Handheld metal detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182860.0A CN105700023A (en) | 2016-03-25 | 2016-03-25 | Handheld metal detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105700023A true CN105700023A (en) | 2016-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610182860.0A Pending CN105700023A (en) | 2016-03-25 | 2016-03-25 | Handheld metal detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105700023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884730A (en) * | 2020-07-27 | 2020-11-03 | 金桥 | Anti-interference device for wireless communication signal detection |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3619308C1 (en) * | 1986-06-07 | 1991-08-29 | Klaus Ebinger | Probe for a metal detector |
| WO2002091021A1 (en) * | 2001-05-10 | 2002-11-14 | Robert Bosch Gmbh | Detector for locating metallic objects |
| CN1382992A (en) * | 2002-04-23 | 2002-12-04 | 上海交通大学 | Single-winding balanced antitheft detecting coil |
| CN201035156Y (en) * | 2007-04-10 | 2008-03-12 | 上海凯歌电子有限公司 | Metal detector and its sensor |
| CN101387708A (en) * | 2008-09-22 | 2009-03-18 | 三实电器(漳州)有限公司 | Receiving coil of door type metal detector |
| CN103424779A (en) * | 2012-05-24 | 2013-12-04 | 金华马卡科技有限公司 | Handheld detecting instrument |
| CN204155260U (en) * | 2014-07-01 | 2015-02-11 | 鸿合科技有限公司 | A kind of coil array of electromagnetic induction blank |
| CN204882890U (en) * | 2015-08-07 | 2015-12-16 | 上海申达自动防范系统工程有限公司 | Novel handheld metal detector can fix a position |
| CN205608202U (en) * | 2016-03-25 | 2016-09-28 | 东莞市华盾电子科技有限公司 | Hand -held type metal detector |
-
2016
- 2016-03-25 CN CN201610182860.0A patent/CN105700023A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3619308C1 (en) * | 1986-06-07 | 1991-08-29 | Klaus Ebinger | Probe for a metal detector |
| WO2002091021A1 (en) * | 2001-05-10 | 2002-11-14 | Robert Bosch Gmbh | Detector for locating metallic objects |
| CN1382992A (en) * | 2002-04-23 | 2002-12-04 | 上海交通大学 | Single-winding balanced antitheft detecting coil |
| CN201035156Y (en) * | 2007-04-10 | 2008-03-12 | 上海凯歌电子有限公司 | Metal detector and its sensor |
| CN101387708A (en) * | 2008-09-22 | 2009-03-18 | 三实电器(漳州)有限公司 | Receiving coil of door type metal detector |
| CN103424779A (en) * | 2012-05-24 | 2013-12-04 | 金华马卡科技有限公司 | Handheld detecting instrument |
| CN204155260U (en) * | 2014-07-01 | 2015-02-11 | 鸿合科技有限公司 | A kind of coil array of electromagnetic induction blank |
| CN204882890U (en) * | 2015-08-07 | 2015-12-16 | 上海申达自动防范系统工程有限公司 | Novel handheld metal detector can fix a position |
| CN205608202U (en) * | 2016-03-25 | 2016-09-28 | 东莞市华盾电子科技有限公司 | Hand -held type metal detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884730A (en) * | 2020-07-27 | 2020-11-03 | 金桥 | Anti-interference device for wireless communication signal detection |
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Application publication date: 20160622 |
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| RJ01 | Rejection of invention patent application after publication |