CN205920229U - Metal detection system based on voltage stabilizing circuit uses design - Google Patents
Metal detection system based on voltage stabilizing circuit uses design Download PDFInfo
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- CN205920229U CN205920229U CN201620744323.6U CN201620744323U CN205920229U CN 205920229 U CN205920229 U CN 205920229U CN 201620744323 U CN201620744323 U CN 201620744323U CN 205920229 U CN205920229 U CN 205920229U
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- transmitting coil
- electric capacity
- audion
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Abstract
The utility model discloses a metal detection system based on voltage stabilizing circuit uses design, be provided with power supply system and survey the treatment circuit, power supply system is connected with the detection treatment circuit, be provided with resistance R1 in the power supply system, controllable accurate steady voltage source D1, triode Q1, triode Q2, U1 is put to integrated fortune, electric capacity C1, resistance R2, resistance R3, potentiometre W1 and electric capacity C2, resistance R1's first end is connected with triode Q1 and triode Q2's collecting electrode respectively, resistance R1's second end is connected with controllable accurate steady voltage source D1's negative pole, D1's positive pole and R3's second end, electric capacity C2's second end and ground are connected, utilize the voltage stabilizing circuit who is connected with external power supply with the voltage transformation for being surveyed the DC power supply that the treatment circuit used to supply with to survey the treatment circuit and make its work, overcome prior art and adopt the drawback that dry battery duration is not enough, can be so that the steady job for a long time of this metal detection system.
Description
Technical field
This utility model is related to electromagnetic wave detection technical field, specifically, is a kind of based on mu balanced circuit Application Design
Metal detecting system.
Background technology
Metal is that one kind has gloss (i.e. to visible ray strong reflection), is rich in ductility, the easily 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 exists, and a few metals such as gold, platinum, silver, bismuth are existed 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 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.
Electronics tendency due to metal departs from, and therefore has 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 good former of metal extensibility
Cause.
In nature, most metals are existed 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 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 (grey) color, and only minority is not that such as gold is yellow red
Color, copper is aubergine.Metal carries " Jin " other mostly.
It is metal generally by the Material Definitions with positive temperature resistance coefficient.The element week containing 112 kinds of elements using
In phase table, totally 90 kinds of metallic element.It is located at the lower left of " boron-astatine demarcation line ", in 5 regions such as s area, p area, d area, f area all
There is metallic element, transition elements are entirely metallic element.
In solid metallic conductor, there is much movably free electron.Although these electronics do not fetter any spy of what
Determine atom, but all fetter in the lattice of what metal；Even under not having External Electrical Field, because heat energy, these electronics are still
Can randomly move.But, in conductor, average net current is zero.Select the internal arbitrary section of wire, be spaced at any time
Interior, move on to the number of electrons of another side from section, move past the number in section equal to opposite direction.
Metal detection, it rationale here is that, based on the magnetic property of material, and metal object can cause in certain magnetic field
The change of one self-induction of loop, also can cause degree of coupling Dian between coil to change, if a conductor is 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 metal detecting system based on mu balanced circuit Application Design, using with
Voltage transformation by being detected the DC source that process circuit is used, and is supplied spy by the mu balanced circuit that external power supply is connected
Surveying process circuit makes its work, the drawbacks of overcome prior art to adopt aneroid battery endurance not enough, so that this metal is visited
Examining system can be steady in a long-term work.
This utility model is achieved through the following technical solutions: a kind of metal detection system based on mu balanced circuit Application Design
System, is provided with electric power system and detects process circuit, electric power system is connected with detecting process circuit, is provided with electric power system
Resistance r1, controllable accurate source of stable pressure d1, audion q1, audion q2, integrated transporting discharging u1, electric capacity c1, resistance r2, resistance r3, electricity
Position device w1 and electric capacity c2, the first end of resistance r1 is connected with the colelctor electrode of audion q1 and audion q2 respectively, resistance r1's
Second end is connected with the negative electrode of controllable accurate source of stable pressure d1, the anode of controllable accurate source of stable pressure d1 and second end of resistance r3,
Second end of electric capacity c2 and ground are connected；The in-phase input end of integrated transporting discharging u1 is extremely connected with the reference of controllable accurate source of stable pressure d1
Connect, the inverting input of integrated transporting discharging u1 is connected with second end of electric capacity c1 and the control end of potentiometer w1 respectively；Integrated fortune
The outfan putting u1 is connected with the base stage of audion q1, and the emitter stage of audion q1 is connected with the base stage of audion q2, audion
The emitter stage of the q2 first end with electric capacity c1 respectively, the first end of resistance r2, the first end of electric capacity c2 and detection process circuit phase
Connect, second end of resistance r2 is connected with a fixing end of potentiometer w1, another fixing end of potentiometer w1 and resistance r3
First end connect.
Further is preferably to realize this utility model, especially adopts following set-up modes: described detection process circuit
Inside be provided with transmission coil system, emitter, timing circuit, receptor and audio system, described transmission coil system respectively with
The first end of electric capacity c2, emitter are connected with receptor, and described emitter connects timing circuit, described transmission coil system bag
Include two transmitting coils, and one end of two transmitting coils is connected with emitter and receptor respectively, two transmitting coils
The other end is grounded, and the circle diameter of described transmitting coil is 180mm, and transmitting coil adopts No. 28 copper cash, the circle of transmitting coil
Number is 20 ~ 24 circles.
Further is preferably to realize this utility model, especially adopts following set-up modes: described two transmitting coils
Be respectively the first transmitting coil and the second transmitting coil, the first end of 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, described first transmitting
The width of coil and the second transmitting coil overlap and overlapping part is 88mm.
Further is preferably to realize this utility model, especially adopts following set-up modes: setting in described receptor
There are the amplifying circuit being sequentially connected and d flip-flop circuit, the first end of described first transmitting coil connects the anti-phase of amplifying circuit
Input, the first end of described second transmitting coil connects the in-phase input end of amplifying circuit, and described timing circuit connects d triggering
Device circuit.
Further is preferably to realize this utility model, especially adopts following set-up modes: also include being arranged on reception
Audio system on device, described hands on the outfan being connected to d flip-flop circuit.
Further is preferably to realize this utility model, especially adopts following set-up modes: described audio system includes
Interconnective acoustics circuit and horn circuit, described receptor is connected with acoustics circuit.
Further is preferably to realize this utility model, especially adopts following set-up modes: described horn circuit adopts
Double horn.
This utility model compared with prior art, has advantages below and a beneficial effect:
This utility model using the mu balanced circuit being connected with external power supply by voltage transformation be can be detected process circuit
The DC source being used, and supply detection process circuit make its work, overcome prior art to adopt aneroid battery endurance not
Sufficient the drawbacks of, so that the work that this metal detecting system can be steady in a long-term.
This utility model can quickly detect to hiding metal, by adopting dual coil designs, based on magnetoelectricity
Transfer principle work and designed system, have a fast response time, feature easy to use.
Brief description
Fig. 1 is fundamental diagram of the present utility model.
Wherein, 2- emitter, 3- first transmitting coil, 4- second transmitting coil, 5- receptor, 6- timing circuit, 7- sound
Ring circuit, 8- horn circuit, 9- amplifying circuit, 10-d flip-flop circuit.
Specific embodiment
With reference to embodiment, this utility model is described in further detail, but embodiment of the present utility model is not
It is limited to this.
Embodiment 1:
A kind of metal detecting system based on mu balanced circuit Application Design, using the mu balanced circuit being connected with external power supply
By voltage transformation by the DC source that process circuit is used can be detected, and supply detection process circuit make its work, overcome
The drawbacks of prior art adopts aneroid battery endurance not enough, so that the work that this metal detecting system can be steady in a long-term
Make, as shown in figure 1, being specifically arranged to following structures: be provided with electric power system and detect process circuit, at electric power system and detection
Reason circuit is connected, and is provided with resistance r1, controllable accurate source of stable pressure d1, audion q1, audion q2, integrated fortune in electric power system
Put u1, electric capacity c1, resistance r2, resistance r3, potentiometer w1 and electric capacity c2, the first end of resistance r1 respectively with audion q1 and three poles
The colelctor electrode of pipe q2 is connected, and second end of resistance r1 is connected with the negative electrode of controllable accurate source of stable pressure d1, controllable accurate voltage stabilizing
The anode of source d1 is connected with second end of resistance r3, second end of electric capacity c2 and ground；The in-phase input end of integrated transporting discharging u1 with
The reference pole of controllable accurate source of stable pressure d1 is connected, inverting input the second end and the electricity with electric capacity c1 respectively of integrated transporting discharging u1
The control end of position device w1 is connected；The outfan of integrated transporting discharging u1 is connected with the base stage of audion q1, the emitter stage of audion q1
It is connected with the base stage of audion q2, the emitter stage first end with electric capacity c1 respectively of audion q2, the first end of resistance r2, electric capacity
The first end of c2 and detection process circuit are connected, and second end of resistance r2 is connected with a fixing end of potentiometer w1, current potential
Another fixing end of device w1 is connected with the first end of resistance r3；The first end of described resistance r1 and controllable accurate source of stable pressure d1's
Anode is connected with external power supply respectively, and the external power supply after processing after filtering is converted to detection process circuit by electric power system
The DC source that can use, described integrated transporting discharging u1 adopts lm358, and any one operational amplification circuit using lm358；
Described controllable accurate source of stable pressure d1 adopts tl431, and all using electrochemical capacitor and first end is just all described electric capacity c1 and electric capacity c2
Extremely.
Embodiment 2:
The present embodiment is to optimize further on the basis of above-described embodiment, as shown in figure 1, further is preferably real
Existing this utility model, especially adopts following set-up modes: be provided with transmission coil system, emitter in described detection process circuit
2nd, timing circuit 6, receptor 5 and audio system, described transmission coil system respectively with the first end of electric capacity c2, emitter 2 and
Receptor 5 is connected, and described emitter 2 connects timing circuit 6, and described transmission coil system includes two transmitting coils, and two
One end of individual transmitting coil is connected with emitter 2 and receptor 5 respectively, the other end ground connection of two transmitting coils, described
The circle diameter of ray circle is 180mm, and transmitting coil adopts No. 28 copper cash, and the number of turn of transmitting coil is 20 ~ 24 circles, emitter
By the one big current impulse of coil transmissions, produce magnetic field near metal object due to eddy current effect, in transmitting
After end-of-pulsing, vortex continues to flow in coil, and produces voltage in another coil and return to receptor 5, is compared
Relatively detect and amplify.
Embodiment 3:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, two coils being carried out reasonable Arrangement, thus improving detection accuracy, especially adopting following settings
Mode: described two transmitting coils are respectively the first transmitting coil 3 and the second transmitting coil 4, the first transmitting coil 3 and second
The first end of ray circle 4 is all connected with emitter 2 and receptor 5 respectively, the first transmitting coil 3 and the second transmitting coil 4
Second end connects altogether and is grounded, and the width of described first transmitting coil 3 and the second transmitting coil 4 overlap and overlapping part is 88mm.
Embodiment 4:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, and further is preferably to realize this reality
With new, the voltage producing can be transferred in receptor and carry out detection amplification in coil, in case subsequent conditioning circuit is processed, such as scheme
Shown in 1, especially adopt following set-up modes: in described receptor 5, be provided with the amplifying circuit 9 being sequentially connected and d trigger electricity
Road 10, the first end of described first transmitting coil 3 connects the inverting input of amplifying circuit 9, and the of described second transmitting coil 4
One end connects the in-phase input end of amplifying circuit 9, and described timing circuit 6 connects d flip-flop circuit 10.
Embodiment 5:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, and further is preferably to realize this reality
With new, after the voltage received device process that can be formed after detecting, trigger audio system, by way of voice message
Inform surveyor, near coil, there is metal object, as shown in figure 1, especially adopting following set-up modes: also include being arranged on connecing
Receive the audio system on device 5, described hand on 5 outfans being connected to d flip-flop circuit 10.
Embodiment 6:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, can be using acoustics circuit and loudspeaker electricity
Road is amplified so that user understand that there is metal object near coil, as shown in figure 1, further is preferably real
Existing this utility model, especially adopts following set-up modes: described audio system includes interconnective acoustics circuit 7 and loudspeaker electricity
Road 8, described receptor 5 is connected with acoustics circuit 7.
Embodiment 7:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, can be in the form of played in stereo
Carry out sound prompting, as shown in figure 1, further is preferably to realize this utility model, especially adopt following set-up modes: institute
State horn circuit 8 and adopt double horn.
Emitter passes through a coil (the first transmitting coil 3 or second transmitting coil 4) and launches a big current impulse,
Produce magnetic field due to eddy current effect near metal object, after transmitting end-of-pulsing, vortex continues in coil (the first transmitting
Coil 3 or the second transmitting coil 4) interior flowing, and produce in another coil (the second transmitting coil 4 or the first transmitting coil 3)
Raw voltage returns to receptor 5, is compared and detects and amplify, and finally starts acoustics circuit 7 and utilizes horn circuit 8 generation sound
Ring, horn circuit 8 is designed so that user can more clearly be heard using stereophonic effect, to indicate near coil
With the presence of metal object.
The above, be only preferred embodiment of the present utility model, and not this utility model is done with any pro forma limit
System, every any simple modification above example made according to technical spirit of the present utility model, equivalent variations, each fall within
Within protection domain of the present utility model.
Claims (7)
1. a kind of metal detecting system based on mu balanced circuit Application Design it is characterised in that: be provided with electric power system and detection
Process circuit, electric power system is connected with detecting process circuit, is provided with resistance r1, controllable accurate source of stable pressure in electric power system
D1, audion q1, audion q2, integrated transporting discharging u1, electric capacity c1, resistance r2, resistance r3, potentiometer w1 and electric capacity c2, resistance r1
First end be connected with the colelctor electrode of audion q1 and audion q2 respectively, second end of resistance r1 and controllable accurate source of stable pressure
The negative electrode of d1 is connected, and the anode of controllable accurate source of stable pressure d1 is connected with second end of resistance r3, second end of electric capacity c2 and ground
Connect；The in-phase input end of integrated transporting discharging u1 is connected with the reference pole of controllable accurate source of stable pressure d1, and integrated transporting discharging u1's is anti-phase defeated
Enter end to be connected with second end of electric capacity c1 and the control end of potentiometer w1 respectively；The outfan of integrated transporting discharging u1 and audion q1
Base stage be connected, the emitter stage of audion q1 is connected with the base stage of audion q2, the emitter stage of audion q2 respectively with electric capacity c1
First end, the first end of resistance r2, the first end of electric capacity c2 and detect process circuit be connected, second end of resistance r2 with electricity
One fixing end of position device w1 connects, and another fixing end of potentiometer w1 is connected with the first end of resistance r3.
2. a kind of metal detecting system based on mu balanced circuit Application Design according to claim 1 it is characterised in that: institute
State in detection process circuit and be provided with transmission coil system, emitter (2), timing circuit (6), receptor (5) and audio system,
Described transmission coil system is connected with the first end of electric capacity c2, emitter (2) and receptor (5) respectively, described emitter (2)
Connect timing circuit (6), described transmission coil system includes two transmitting coils, and one end of two transmitting coils respectively with send out
Emitter (2) is connected with receptor (5), the other end ground connection of two transmitting coils, and the circle diameter of described transmitting coil is
180mm, and transmitting coil adopts No. 28 copper cash, the number of turn of transmitting coil is 20～24 circles.
3. a kind of metal detecting system based on mu balanced circuit Application Design according to claim 2 it is characterised in that: institute
State two transmitting coils and be respectively the first transmitting coil (3) and the second transmitting coil (4), the first transmitting coil (3) and second
The first end of ray circle (4) is all connected with emitter (2) and receptor (5) respectively, and the first transmitting coil (3) and second is launched
Second end of coil (4) connects altogether and is grounded, and described first transmitting coil (3) and the second transmitting coil (4) be overlapping and overlapping part
Width be 88mm.
4. a kind of metal detecting system based on mu balanced circuit Application Design according to claim 3 it is characterised in that: institute
State and in receptor (5), be provided with the amplifying circuit (9) being sequentially connected and d flip-flop circuit (10), described first transmitting coil (3)
First end connect the inverting input of amplifying circuit (9), the first end of described second transmitting coil (4) connects amplifying circuit
(9) in-phase input end, described timing circuit (6) connects d flip-flop circuit (10).
5. a kind of metal detecting system based on mu balanced circuit Application Design according to claim 4 it is characterised in that: also
Including the audio system being arranged on receptor (5), described hand in (5) are connected on the outfan of d flip-flop circuit (10).
6. a kind of metal detecting system based on mu balanced circuit Application Design according to any one of claim 2-5, it is special
Levy and be: described audio system includes interconnective acoustics circuit (7) and horn circuit (8), described receptor (5) and sound equipment
Circuit (7) is connected.
7. a kind of metal detecting system based on mu balanced circuit Application Design according to claim 6 it is characterised in that: institute
State horn circuit (8) and adopt double horn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744323.6U CN205920229U (en) | 2016-07-14 | 2016-07-14 | Metal detection system based on voltage stabilizing circuit uses design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744323.6U CN205920229U (en) | 2016-07-14 | 2016-07-14 | Metal detection system based on voltage stabilizing circuit uses design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920229U true CN205920229U (en) | 2017-02-01 |
Family
ID=57872176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620744323.6U Expired - Fee Related CN205920229U (en) | 2016-07-14 | 2016-07-14 | Metal detection system based on voltage stabilizing circuit uses design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205920229U (en) |
-
2016
- 2016-07-14 CN CN201620744323.6U patent/CN205920229U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20180714 |
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| CF01 | Termination of patent right due to non-payment of annual fee |