CN106019387A - System for metal detection - Google Patents
System for metal detection Download PDFInfo
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- CN106019387A CN106019387A CN201610555128.3A CN201610555128A CN106019387A CN 106019387 A CN106019387 A CN 106019387A CN 201610555128 A CN201610555128 A CN 201610555128A CN 106019387 A CN106019387 A CN 106019387A
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- transmitting coil
- transmitting
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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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- 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)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a system for metal detection, which comprises a transmitting coil system, a transmitter (2), a timing circuit (6) and a receiver (5), wherein the transmitting coil system is respectively connected with the transmitter (2) and the receiver (5); the transmitter (2) is connected with the timing circuit (6); the transmitting coil system comprises two transmitting coils, one end of each transmitting coil is connected with the transmitter (2) and the receiver (5) respectively, and the other ends of the two transmitting coils are grounded; and the ring diameter of the transmitting coil is 180 mm, the transmitting coil adopts a 28# copper wire, and the number of turns of the transmitting coil is 20 to 24. Thus, hidden metal can be quickly detected; through adopting the design of two coils, the system which is designed based on a transmitting-receiving/induction balance principle has the advantages of quick response speed and convenient use.
Description
Technical field
The present invention relates to electromagnetic wave detection technical field, specifically, be a kind of system for carrying out metal detection.
Background technology
Metal is that one has gloss (i.e. to visible ray strong reflection), is rich in the material of the character such as ductility, easily conduction, heat conduction.All with metallic crystal, to be contained within free electron relevant for the above-mentioned speciality of metal.In nature, most metals exist with compound state, and a few metals such as gold, platinum, silver, bismuth exist with free state.Metalliferous mineral majority is oxide and sulfide.Other existence forms have chloride, sulfate, carbonate and silicate.Link between metal is metallic bond, the most arbitrarily changes position and all can re-establish link again, and this is also the reason that metal ductility is good.Metallic element is the most aobvious usual nominal price in compound.What relative atomic mass was bigger is referred to as heavy metal.
Departing from owing to the electronics of metal is inclined to, therefore have good electric conductivity, and metallic element usual band nominal price electricity in compound, but when temperature is the highest, hinder because receiving nuclear heat shock, resistance will become big.Link between metallic molecule is metallic bond, the most arbitrarily changes position and all can re-establish link again, and this is also the reason that metal extensibility is good.
In nature, most metals exist with compound state, and a few metals such as gold, silver, platinum, bismuth exist with free state.Metalliferous mineral majority is oxide and sulfide, and other existence forms have chloride, sulfate, carbonate and silicate.
The material belonging to metal has gold, silver, copper, ferrum, manganese, zinc etc..Under the room temperature of an atmospheric pressure and 25 degrees Celsius, outward, other metals are all solids in the removal of mercury (liquid).Most simple metal is silvery white (grey) color, and only minority is not, and if gold is yellow redness of the skin or complexion, copper is aubergine.Metal carries " Jin " other mostly.
It is generally metal by the Material Definitions with positive temperature resistance coefficient.In the periodic table of elements containing 112 kinds of elements used, metallic element totally 90 kinds.Be positioned at the lower left of " boron-astatine demarcation line ", in s district, p district, d district, 5 regions such as f district have metallic element, transition elements to be entirely metallic element.
In solid metallic conductor, there is a lot of movably free electron.Although these electronics do not fetter any specific atoms of what, but all fetter in the lattice of what metal；Even under not having External Electrical Field, because heat energy, these electronics still can move randomly.But, in conductor, mean net electric current is zero.Select the internal arbitrary section of wire, at any time in interval, move on to the number of electrons of another side from cross section, move past the number in cross section equal to opposite direction.
Metal detection, it rationale here is that, magnetic property based on material, and metal object can cause the change of a self-induction of loop in certain magnetic field, also degree of coupling Dian between coil can be caused to change, if being placed in the magnetic field of change by a conductor, conductor will sense and produce eddy current, and the size of eddy current depends on the resistivity of the shape of metal object, size and component.
Summary of the invention
It is an object of the invention to provide a kind of system for carrying out metal detection, quickly hiding metal can be detected, by using dual coil designs, the designed system based on send-receive/inductance balance principle work, there is fast response time, feature easy to use.
The present invention is achieved through the following technical solutions: a kind of system for carrying out metal detection, it is provided with transmission coil system, emitter, timing circuit and receptor, described transmission coil system is connected with emitter and receptor respectively, described emitter connects timing circuit, described transmission coil system includes two transmitting coils, and one end of two transmitting coils is connected with emitter and receptor respectively, the other end ground connection of two transmitting coils, the circle diameter of described transmitting coil is 180mm, and transmitting coil uses No. 28 copper cash, the number of turn of transmitting coil is 20 ~ 24 circles.
The most to better implement the present invention, use following set-up mode especially: said two transmitting coil is respectively the first transmitting coil and the second transmitting coil, first end of the first transmitting coil and the second transmitting coil is connected with emitter and receptor the most respectively, second end of the first transmitting coil and the second transmitting coil connects and ground connection altogether, and described first transmitting coil and overlapping and overlapping part the width of the second transmitting coil are 88mm.
The most to better implement the present invention, use following set-up mode especially: in described receptor, be provided with the amplifying circuit being sequentially connected with and d type flip flop circuit, first end of described first transmitting coil connects the inverting input of amplifying circuit, first end of described second transmitting coil connects the in-phase input end of amplifying circuit, and described timing circuit connects d type flip flop circuit.
The most to better implement the present invention, following set-up mode is used especially: on described emitter, be also associated with electric power system.
The most to better implement the present invention, following set-up mode is used especially: described electric power system uses dry cell batteries.
Further the most to better implement the present invention, use following set-up mode especially: also include the audio system arranged on the receiver, described in hand on the outfan being connected to d type flip flop circuit.
The most to better implement the present invention, following set-up mode is used especially: described audio system includes that interconnective acoustics circuit and horn circuit, described receptor are connected with acoustics circuit.
The most to better implement the present invention, following set-up mode is used especially: described horn circuit uses double horn.
The present invention compared with prior art, has the following advantages and beneficial effect:
Hiding metal can quickly be detected by the present invention, by using dual coil designs, and the designed system based on the work of magnetoelectricity transfer principle, there is fast response time, feature easy to use.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of the present invention.
Wherein, 1-electric power system, 2-emitter, 3-the first transmitting coil, 4-the second transmitting coil, 5-receptor, 6-timing circuit, 7-acoustics circuit, 8-horn circuit, 9-amplifying circuit, 10-D flip-flop circuit.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1:
nullA kind of system for carrying out metal detection，Quickly hiding metal can be detected，By using dual coil designs，The designed system based on the work of magnetoelectricity transfer principle，There is fast response time，Feature easy to use，As shown in Figure 1，It is specifically arranged to following structure: be provided with transmission coil system、Emitter 2、Timing circuit 6 and receptor 5，Described transmission coil system is connected with emitter 2 and receptor 5 respectively，Described emitter 2 connects timing circuit 6，Described transmission coil system includes two transmitting coils，And one end of two transmitting coils is connected with emitter 2 and receptor 5 respectively，The other end ground connection of two transmitting coils，The circle diameter of described transmitting coil is 180mm，And transmitting coil uses No. 28 copper cash，The number of turn of transmitting coil is 20 ~ 24 circles，When design uses，The circle diameter of two transmitting coils is all set to 180mm，And carry out coiling by No. 28 copper cash，And the coil turn of coiling is 20 ~ 24 circles，Emitter passes through one the big current impulse of a coil transmissions，Produce magnetic field due to eddy current effect near metal object，After launching end-of-pulsing，Eddy current continues to flow in coil，And in another coil, produce voltage return to receptor 5，Compare detection and amplify.
Embodiment 2:
The present embodiment is to optimize further on the basis of above-described embodiment, as shown in Figure 1, the most to better implement the present invention, two coils can be carried out reasonable Arrangement, thus improve detection accuracy, use following set-up mode especially: said two transmitting coil is respectively the first transmitting coil 3 and the second transmitting coil 4, first transmitting coil 3 is connected with emitter 2 and receptor 5 the most respectively with the first end of the second transmitting coil 4, second end of the first transmitting coil 3 and the second transmitting coil 4 connects and ground connection altogether, described first transmitting coil 3 and overlapping and overlapping part the width of the second transmitting coil 4 are 88mm.
Embodiment 3:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, the most to better implement the present invention, detection can be carried out in the voltage produced in coil is transferred to receptor amplify, in case subsequent conditioning circuit processes, as shown in Figure 1, use following set-up mode especially: in described receptor 5, be provided with the amplifying circuit 9 being sequentially connected with and d type flip flop circuit 10, first end of described first transmitting coil 3 connects the inverting input of amplifying circuit 9, first end of described second transmitting coil 4 connects the in-phase input end of amplifying circuit 9, described timing circuit 6 connects d type flip flop circuit 10.
Embodiment 4:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, for making generator that suitable power supply can be had to be powered, as it is shown in figure 1, the most to better implement the present invention, following set-up mode is used especially: on described emitter 2, be also associated with electric power system 1.
Embodiment 5:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, carries for convenience, and power supply is replaced, and the most to better implement the present invention, uses following set-up mode especially: described electric power system 1 uses dry cell batteries.
Embodiment 6:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, the most to better implement the present invention, after the voltage formed after detection can being received device process, trigger audio system, by the way of voice message, inform surveyor, near coil, there is metal object, as shown in Figure 1, use especially following set-up mode: also include the audio system being arranged on receptor (5), described in hand in (5) and be connected on the outfan of d type flip flop circuit (10).
Embodiment 7:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, acoustics circuit and horn circuit can be utilized to amplify, enable a user to know and near coil, there is metal object, as shown in Figure 1, the most to better implement the present invention, use following set-up mode especially: described audio system includes that interconnective acoustics circuit 7 and horn circuit 8, described receptor 5 are connected with acoustics circuit 7.
Embodiment 8:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, the form that can use played in stereo carries out sound prompting, as it is shown in figure 1, the most to better implement the present invention, following set-up mode is used especially: described horn circuit 8 uses double horn.
Emitter launches a big current impulse by a coil (first transmitting coil 3 or the second transmitting coil 4), produce magnetic field due to eddy current effect near metal object, after launching end-of-pulsing, eddy current continues to flow in coil (first transmitting coil 3 or the second transmitting coil 4), and in another coil (second transmitting coil 4 or the first transmitting coil 3), produce voltage return to receptor 5, compare detection and amplify, finally starting acoustics circuit 7 utilizes horn circuit 8 that the sound occurs, horn circuit 8 uses stereophonic effect to design, enable a user to more clearly hear, to indicate near coil with the presence of metal object.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, every above example is made according to the technical spirit of the present invention any simple modification, equivalent variations, within each falling within protection scope of the present invention.
Claims (8)
1. one kind for carrying out the system of metal detection, it is characterised in that: be provided with transmission coil system,
Emitter (2), timing circuit (6) and receptor (5), described transmission coil system respectively with transmitting
Device (2) is connected with receptor (5), described emitter (2) connection timing circuit (6), described
Penetrate coil system and include two transmitting coils, and one end of two transmitting coils respectively with emitter (2) and
Receptor (5) is connected, the other end ground connection of two transmitting coils, the circle diameter of described transmitting coil
For 180mm, and transmitting coil uses No. 28 copper cash, and the number of turn of transmitting coil is 20～24 circles.
A kind of system for carrying out metal detection the most according to claim 1, it is characterised in that:
Said two transmitting coil is respectively the first transmitting coil (3) and the second transmitting coil (4), and first launches
First end of coil (3) and the second transmitting coil (4) the most respectively with emitter (2) and receptor (5)
Being connected, the second end of the first transmitting coil (3) and the second transmitting coil (4) connects and ground connection altogether, described
First transmitting coil (3) and overlapping and overlapping part the width of the second transmitting coil (4) are 88mm.
A kind of system for carrying out metal detection the most according to claim 2, it is characterised in that:
The amplifying circuit (9) and d type flip flop circuit (10) being sequentially connected with it is provided with in described receptor (5),
The inverting input of the first end connection amplifying circuit (9) of described first transmitting coil (3), described second
First end of transmitting coil (4) connects the in-phase input end of amplifying circuit (9), described timing circuit (6)
Connect d type flip flop circuit (10).
A kind of system for carrying out metal detection the most according to claim 3, it is characterised in that:
Described emitter (2) is also associated with electric power system (1).
A kind of system for carrying out metal detection the most according to claim 4, it is characterised in that:
Described electric power system (1) uses dry cell batteries.
A kind of system for carrying out metal detection the most according to claim 5, it is characterised in that:
Also include the audio system being arranged on receptor (5), described in hand in (5) be connected to d type flip flop electricity
On the outfan on road (10).
7., according to a kind of system for carrying out metal detection described in any one of claim 1-6, it is special
Levy and be: described audio system includes interconnective acoustics circuit (7) and horn circuit (8), described
Receptor (5) is connected with acoustics circuit (7).
A kind of system for carrying out metal detection the most according to claim 7, it is characterised in that:
Described horn circuit (8) uses double horn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555128.3A CN106019387A (en) | 2016-07-14 | 2016-07-14 | System for metal detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555128.3A CN106019387A (en) | 2016-07-14 | 2016-07-14 | System for metal detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106019387A true CN106019387A (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610555128.3A Pending CN106019387A (en) | 2016-07-14 | 2016-07-14 | System for metal detection |
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| Country | Link |
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| CN (1) | CN106019387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065020A (en) * | 2017-01-09 | 2017-08-18 | 重庆璀陆探测技术有限公司 | The many ripple investigation systems of twin coil manifold type |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759752A (en) * | 2012-07-25 | 2012-10-31 | 彭磊 | Metal detection device and detection method |
| US8749240B1 (en) * | 2010-09-17 | 2014-06-10 | White's Electronics, Inc. | Time domain method and apparatus for metal detectors |
| CN203705660U (en) * | 2013-12-20 | 2014-07-09 | 重庆市永川区益锐机械有限责任公司 | Double-coil metal detection circuit |
-
2016
- 2016-07-14 CN CN201610555128.3A patent/CN106019387A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8749240B1 (en) * | 2010-09-17 | 2014-06-10 | White's Electronics, Inc. | Time domain method and apparatus for metal detectors |
| CN102759752A (en) * | 2012-07-25 | 2012-10-31 | 彭磊 | Metal detection device and detection method |
| CN203705660U (en) * | 2013-12-20 | 2014-07-09 | 重庆市永川区益锐机械有限责任公司 | Double-coil metal detection circuit |
Non-Patent Citations (1)
| Title |
|---|
| 王惠民: "《实用电子小产品制作 第二辑》", 31 January 1995, 电子工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065020A (en) * | 2017-01-09 | 2017-08-18 | 重庆璀陆探测技术有限公司 | The many ripple investigation systems of twin coil manifold type |
| CN107065020B (en) * | 2017-01-09 | 2019-09-06 | 重庆璀陆探测技术有限公司 | The more wave investigation systems of twin coil manifold type |
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Application publication date: 20161012 |
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