CN206133029U - System for metal detection is used for carrying on - Google Patents

Abstract

The utility model discloses a system for metal detection is used for carrying on is provided with transmitting coil system, transmitter (2), timing circuit (6) and receiver (5), the transmitting coil system is connected with transmitter (2) and receiver (5) respectively, timing circuit (6) is connected in transmitter (2), the transmitting coil system includes two transmitting coil, and two transmitting coil's one end is connected with transmitter (2) and receiver (5) respectively, two transmitting coil's other end ground connection, transmitting coil's ring diameter is 180mm, and no. 28 copper lines of transmitting coil adoption, and transmitting coil's the number of turns is 20~24 circles, is the metal to hiding that can be quick surveyed, through adopting the twin coil design, based on the transmission receive induction balance principle work and the designed system, it is fast to have a response speed, convenient to use's characteristics.

Description

A kind of system for carrying out metal detection

Technical field

This utility model is related to electromagnetic wave detection technical field, specifically, is a kind of to be for carry out metal detection System.

Background technology

Metal is a kind of with gloss（I.e. to visible ray strong reflection）, be rich in ductility, the easy property such as conduction, heat conduction Material.It is relevant that the above-mentioned speciality of metal is all contained within free electron with metallic crystal.In nature, most metals with Compound state is present, and a few metals such as gold, platinum, silver, bismuth are present 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, therefore arbitrarily more Change place all can re-establish link again, and this is also the reason for metal ductility is good.Metallic element is usual in compound Aobvious nominal price.What relative atomic mass was larger is referred to as heavy metal.

As the electronics tendency of metal departs from, therefore with good electric conductivity, and metallic element is usual in compound Band nominal price electricity, but when temperature is higher, because receive nuclear heat shock hindering, resistance will become big.Metallic molecule it Between link be metallic bond, therefore arbitrarily change position and all can re-establish link again, this is also the good original of metal extensibility Cause.

In nature, most metals are present with compound state, and a few metals such as gold, silver, platinum, bismuth are deposited with free state .Metalliferous mineral majority is oxide and sulfide, and other existence forms have chloride, sulfate, carbonate and silicate.

The material for belonging to metal has gold, silver, copper, ferrum, manganese, zinc etc..Under the room temperature of an atmospheric pressure and 25 degrees Celsius, the removal of mercury （Liquid）Outward, other metals are all solids.Most simple metal is silvery white（Ash）Color, only minority are not that such as gold is yellow red Color, copper are aubergine.Band " Jin " is other mostly for metal.

It is metal generally by the Material Definitions with positive temperature resistance coefficient.The week of the element containing 112 kinds of elements for using In phase table, totally 90 kinds of metallic element.Positioned at the lower left of " boron-astatine demarcation line ", in 5 regions such as s areas, p areas, d areas, f areas all There is metallic element, transition elements are entirely metallic element.

In solid metallic conductor, there are many moveable free electrons.Although these electronics do not fetter any spy of what Determine atom, but all fetter in the lattice of what metal；Even under no External Electrical Field, because heat energy, these electronics are still Randomly can move.But, in conductor, average net current is zero.Arbitrary section inside wire is selected, is spaced at any time It is interior, the number of electrons of another side is moved on to from section, move past the number in section equal to opposite direction.

Metal detection, its ultimate principle are to be caused in certain magnetic field based on the magnetic property of material, and metal object The change of one self-induction of loop, can also cause degree of coupling Dian between coil to change, if a conductor to be placed in the magnetic field of change In, conductor will sense and produce vortex, and the size of vortex depends on the resistance of the shape, size and component of metal object Rate.

Utility model content

The purpose of this utility model is to provide a kind of system for carrying out metal detection, can quickly to hiding Metal is detected, by adopting dual coil designs, designed system, tool based on send-receive/inductance balance principle work There is fast response time, the characteristics of easy to use.

This utility model is achieved through the following technical solutions：A kind of system for carrying out metal detection, is provided with transmitting Coil system, emitter, timing circuit and receptor, the transmission coil system are connected with emitter and receptor respectively, The emitter connects timing circuit, and the transmission coil system includes two transmitting coils, and one end of two transmitting coils It is connected with emitter and receptor respectively, the other end of two transmitting coils is grounded, and the circle diameter of the transmitting coil is 180mm, and transmitting coil adopts No. 28 copper cash, the number of turn of transmitting coil is 20 ~ 24 circles.

Further is preferably to realize this utility model, especially using following set-up modes：Described two transmitting coils The first end of respectively the first transmitting coil and the second transmitting coil, the first transmitting coil and the second transmitting coil all respectively with send out Emitter is connected with receptor, and the second end of the first transmitting coil and the second transmitting coil connects altogether and is grounded, first transmitting Coil and the second transmitting coil are overlapped and the width of overlapping part is 88mm.

Further is preferably to realize this utility model, especially using following set-up modes：Arrange in the receptor The first end for having the amplifying circuit and d type flip flop circuit being sequentially connected, first transmitting coil connects the anti-phase of amplifying circuit Input, the first end of second transmitting coil connect the in-phase input end of amplifying circuit, the timing circuit connection D triggerings Device circuit.

Further is preferably to realize this utility model, especially using following set-up modes：On the emitter also It is connected with electric power system.

Further is preferably to realize this utility model, especially using following set-up modes：The electric power system is adopted Dry cell batteries.

Further is preferably to realize this utility model, especially using following set-up modes：Also include being arranged on reception Audio system on device, the receptor are connected on the outfan of d type flip flop circuit.

Further is preferably to realize this utility model, especially using following set-up modes：The audio system includes The acoustics circuit being connected with each other and horn circuit, the receptor are connected with acoustics circuit.

Further is preferably to realize this utility model, especially using following set-up modes：The horn circuit is adopted Double horn.

This utility model compared with prior art, with advantages below and beneficial effect：

This utility model quickly can be detected to hiding metal, by adopting dual coil designs, based on magnetoelectricity Transfer principle works and designed system, with fast response time, the characteristics of easy to use.

Description of the drawings

Fig. 1 is fundamental diagram of the present utility model.

Wherein, 1- electric power systems, 2- emitters, the first transmitting coils of 3-, the second transmitting coils of 4-, 5- receptors, 6- are fixed When circuit, 7- acoustics circuits, 8- horn circuits, 9- amplifying circuits, 10-D flip-flop circuits.

Specific embodiment

This utility model is described in further detail with reference to embodiment, but embodiment of the present utility model is not It is limited to this.

Embodiment 1：

A kind of system for carrying out metal detection, metal that can be quickly to hiding are detected, double by adopting Coil design, is worked and designed system based on magnetoelectricity transfer principle, with fast response time, the characteristics of easy to use, such as Fig. 1 It is shown, it is specifically arranged to following structures：It is provided with transmission coil system, emitter 2, timing circuit 6 and receptor 5, described Penetrate coil system to be connected with emitter 2 and receptor 5 respectively, the connection timing circuit 6 of the emitter 2, the transmitting coil System includes two transmitting coils, and one end of two transmitting coils is connected with emitter 2 and receptor 5 respectively, and two are sent out The other end ground connection of ray circle, the circle diameter of the transmitting coil is 180mm, and transmitting coil adopts No. 28 copper cash, transmitting The number of turn of coil is 20 ~ 24 circles, when design is used, the circle diameter of two transmitting coils is all set to 180mm, and is passed through No. 28 copper cash carry out coiling, and the coil turn of coiling is 20 ~ 24 circles, and emitter is by one big electric current of a coil transmissions Pulse, produces magnetic field near metal object due to eddy current effect, and after transmitting end-of-pulsing, vortex continues to flow in coil It is dynamic, and produce voltage in another coil and return to receptor 5, it is compared and detects and amplify.

Embodiment 2：

The present embodiment is further optimized on the basis of above-described embodiment, as shown in figure 1, further for preferably in fact Two coils can be carried out reasonable Arrangement, so as to improve detection accuracy, especially using following setting sides by existing this utility model Formula：Described two transmitting coils are respectively the first transmitting coil 3 and the second transmitting coil 4, the first transmitting coil 3 and the second transmitting The first end of coil 4 is all connected with emitter 2 and receptor 5 respectively, and the of the first transmitting coil 3 and the second transmitting coil 4 Two ends connect altogether and are grounded, and first transmitting coil 3 and the second transmitting coil 4 are overlapped and the width of overlapping part is 88mm.

Embodiment 3：

The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is preferably to realize this reality With new, the voltage that produced in coil can be transferred in receptor carries out detection amplification, in case subsequent conditioning circuit is processed, such as schemes Shown in 1, especially using following set-up modes：The amplifying circuit 9 and d type flip flop electricity being sequentially connected is provided with the receptor 5 Road 10, the first end of first transmitting coil 3 connect the inverting input of amplifying circuit 9, and the of second transmitting coil 4 One end connects the in-phase input end of amplifying circuit 9, the connection d type flip flop of the timing circuit 6 circuit 10.

Embodiment 4：

The present embodiment is further optimized on the basis of any of the above-described embodiment, is that generator is had suitably Power supply is powered, as shown in figure 1, it is further preferably to realize this utility model, especially using following set-up modes： Electric power system 1 is also associated with the emitter 2.

Embodiment 5：

The present embodiment is further optimized on the basis of any of the above-described embodiment, is replaced for convenience of carrying, and power supply, is entered One step preferably to realize this utility model, especially using following set-up modes：The electric power system 1 adopts dry cell batteries.

Embodiment 6：

The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is preferably to realize this reality With new, after can be processed the voltage formed after detection received device, audio system is triggered, by way of voice message Surveyor is informed, there is metal object near coil, as shown in figure 1, especially adopting following set-up modes：Also include being arranged on connecing Receive device（5）On audio system, the receptor（5）It is connected to d type flip flop circuit（10）Outfan on.

Embodiment 7：

The present embodiment is further optimized on the basis of any of the above-described embodiment, can utilize acoustics circuit and loudspeaker electricity Road is amplified so that user understand that, as shown in figure 1, further for preferably in fact Existing this utility model, especially using following set-up modes：The audio system includes the acoustics circuit 7 being connected with each other and loudspeaker electricity Road 8, the receptor 5 are connected with acoustics circuit 7.

Embodiment 8：

The present embodiment is further optimized on the basis of any of the above-described embodiment, can be in the form of played in stereo Sound prompting is carried out, as shown in figure 1, it is further preferably to realize this utility model, especially using following set-up modes：Institute State horn circuit 8 and adopt double horn.

Emitter passes through a coil（First transmitting coil 3 or the second transmitting coil 4）One big current impulse of transmitting, Magnetic field is produced near metal object due to eddy current effect, after transmitting end-of-pulsing, vortex continues in coil（First transmitting Coil 3 or the second transmitting coil 4）Interior flowing, and in another coil（Second transmitting coil 4 or the first transmitting coil 3）Interior product Raw voltage returns to receptor 5, is compared and detects and amplify, and finally starts acoustics circuit 7 and utilizes 8 generation sound of horn circuit Ring, horn circuit 8 is designed using stereophonic effect so that user more clearly can be heard, to indicate near coil With the presence of metal object.

The above, is only preferred embodiment of the present utility model, and any pro forma limit is not done to this utility model System, every any simple modification made to above example according to technical spirit of the present utility model, equivalent variations, each falls within Within protection domain of the present utility model.

Claims (8)

1. a kind of system for carrying out metal detection, it is characterised in that：It is provided with transmission coil system, emitter（2）, it is fixed When circuit（6）And receptor（5）, the transmission coil system respectively with emitter（2）And receptor（5）It is connected, described Emitter（2）Connection timing circuit（6）, the transmission coil system includes two transmitting coils, and one end of two transmitting coils Respectively with emitter（2）And receptor（5）It is connected, the other end ground connection of two transmitting coils, the annulus of the transmitting coil A diameter of 180mm, and transmitting coil adopts No. 28 copper cash, the number of turn of transmitting coil is 20 ~ 24 circles.

2. a kind of system for carrying out metal detection according to claim 1, it is characterised in that：Described two Ray circle is respectively the first transmitting coil（3）With the second transmitting coil（4）, the first transmitting coil（3）With the second transmitting coil（4） First end all respectively with emitter（2）And receptor（5）It is connected, the first transmitting coil（3）With the second transmitting coil（4）'s Second end connects altogether and is grounded, first transmitting coil（3）With the second transmitting coil（4）Overlap and the width of overlapping part is 88mm。

3. a kind of system for carrying out metal detection according to claim 2, it is characterised in that：The receptor （5）The amplifying circuit being sequentially connected is provided with inside（9）With D flip-flop circuits（10）, first transmitting coil（3）First End connection amplifying circuit（9）Inverting input, second transmitting coil（4）First end connection amplifying circuit（9）It is same Phase input, the timing circuit（6）Connection D flip-flop circuits（10）.

4. a kind of system for carrying out metal detection according to claim 3, it is characterised in that：In the transmitting Device（2）On be also associated with electric power system（1）.

5. a kind of system for carrying out metal detection according to claim 4, it is characterised in that：The power supply system System（1）Using dry cell batteries.

6. a kind of system for carrying out metal detection according to claim 5, it is characterised in that：Also include arranging In receptor（5）On audio system, the receptor（5）It is connected to D flip-flop circuits（10）Outfan on.

7. a kind of system for carrying out metal detection according to claim 6, it is characterised in that：The audio system Including the acoustics circuit being connected with each other（7）And horn circuit（8）, the receptor（5）With acoustics circuit（7）It is connected.

8. a kind of system for carrying out metal detection according to claim 7, it is characterised in that：The horn circuit （8）Using double horn.