CN203606512U - Metal detection door structure - Google Patents
Metal detection door structure Download PDFInfo
- Publication number
- CN203606512U CN203606512U CN201320700460.6U CN201320700460U CN203606512U CN 203606512 U CN203606512 U CN 203606512U CN 201320700460 U CN201320700460 U CN 201320700460U CN 203606512 U CN203606512 U CN 203606512U
- Authority
- CN
- China
- Prior art keywords
- receiving coil
- metal detection
- electronic circuit
- transmitting coil
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 title claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 27
- 230000005284 excitation Effects 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a metal detection door structure. The metal detection door structure comprises a door body and a control circuit disposed in the door body; and a receiving coil and a transmitting coil are disposed in the door body, the receiving coil and the transmitting coil are connected with the control circuit, and two sides of the transmitting coil is winded with the receiving coil. Compared with the prior art, the metal detection door structure is advantageous in that the metal detection door structure has the strong common-mode interference resistance capability, improves detection precision of a system, realizes accurate detection of a small metal and so on.
Description
Technical field
The utility model relates to foreign material detecting technique, especially relates to a kind of metal detection door.
Background technology
Metal detection door is that a kind of pedestrian of detection has or not the sniffer that carries metal, claims again detector gate (Metal detection door).Its principle for setting up and have electromagnetic field in door, when carrying when metal passes through, human body can produce warning, can accurate detection entrained metal to the person or in hand body bag, as various controlled knifes, weapon, metallic article, electronic product and other article that contain metal etc., it is a kind of safe and effective safety check apparatus.Metal detection detector gate is mainly used in airport, station, and the public place that the stream of peoples such as convention are larger is used for hiding metal on examinant's health.
The safe detection door of metal has entered digital times, a lot of current advanced technologies are used, performance is more and more outstanding, but be still in development improve in, at present for little metal (as diameter Fe that is 0.5mm etc.), the accuracy of detection of the safe detection door of metal is poor, and this has affected the accuracy while detection greatly.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of metal detection door in order to overcome the defect that above-mentioned prior art exists, and adopts case type door body structure, and anti-common mode interference ability is strong, improves the accuracy of detection of system, realizes the accurate detection to little metal.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of metal detection door, comprise a body and be arranged on the control circuit in a body, in described door body, be provided with receiving coil and transmitting coil, described receiving coil, transmitting coil connect respectively control circuit, and described receiving coil winding is in transmitting coil both sides.
Described receiving coil is that a copper wire winding forms.
Described control circuit comprises signal excitation electronic circuit, Signal Pretreatment electronic circuit and CPU, described CPU connects respectively signal excitation electronic circuit and Signal Pretreatment electronic circuit, described signal excitation electronic circuit is connected with transmitting coil, and described Signal Pretreatment electronic circuit is connected with receiving coil.
The framed structure of described Men Tiwei hollow, described receiving coil and transmitting coil are respectively along framed structure coiling.
Compared with prior art, the utility model adopts the version of transmitting coil both sides distribution receiving coil, and receiving coil adopts whole copper wire winding to form, and is differential received mode, and this will increase anti-common mode interference ability of the present utility model.The concept that simultaneously there is no subregion due to the utility model, frequency of operation will greatly improve, and improve the accuracy of detection of system, reduce the corresponding corresponding time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is use schematic diagram of the present utility model;
In Fig. 2, arrow represents that body to be detected passes through direction;
Fig. 3 is the coiling schematic diagram of the utility model receiving coil and transmitting coil.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.The present embodiment is implemented as prerequisite take technical solutions of the utility model, provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1-2, a kind of metal detection door, comprise a body 1 and be arranged on the control circuit 2 in a body, in described door body 1, be provided with receiving coil 3 and transmitting coil 4, described receiving coil 3, transmitting coil 4 connect respectively control circuit 2, as shown in Figure 3, described receiving coil 3 windings are in transmitting coil 4 both sides, receiving coil 3 is that a copper wire winding forms, form differential received mode, two signal output port signal phases are contrary, and its concrete value is the difference between the two, increased anti-common mode interference ability.The framed structure that described door body 1 is hollow, described receiving coil 4 and transmitting coil 3 are respectively along framed structure coiling.
Described control circuit 2 comprises signal excitation electronic circuit, Signal Pretreatment electronic circuit and CPU, described CPU connects respectively signal excitation electronic circuit and Signal Pretreatment electronic circuit, Signal Pretreatment comprises filtering and amplification, described signal excitation electronic circuit is connected with transmitting coil 4, transmitting coil 4 encourages transmitting of electronic circuit generation to change space magnetic field into signal, described Signal Pretreatment electronic circuit is connected with receiving coil 3, and receiving coil 3 inductions are with reception space magnetic field signal and sent to Signal Pretreatment electronic circuit.
Claims (4)
1. a metal detection door, comprise a body and be arranged on the control circuit in a body, it is characterized in that, in described door body, being provided with receiving coil and transmitting coil, described receiving coil, transmitting coil connect respectively control circuit, and described receiving coil winding is in transmitting coil both sides.
2. a kind of metal detection door according to claim 1, is characterized in that, described receiving coil is that a copper wire winding forms.
3. a kind of metal detection door according to claim 1, it is characterized in that, described control circuit comprises signal excitation electronic circuit, Signal Pretreatment electronic circuit and CPU, described CPU connects respectively signal excitation electronic circuit and Signal Pretreatment electronic circuit, described signal excitation electronic circuit is connected with transmitting coil, and described Signal Pretreatment electronic circuit is connected with receiving coil.
4. a kind of metal detection door according to claim 1, is characterized in that, the framed structure of described Men Tiwei hollow, and described receiving coil and transmitting coil are respectively along framed structure coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320700460.6U CN203606512U (en) | 2013-11-07 | 2013-11-07 | Metal detection door structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320700460.6U CN203606512U (en) | 2013-11-07 | 2013-11-07 | Metal detection door structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606512U true CN203606512U (en) | 2014-05-21 |
Family
ID=50719177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320700460.6U Expired - Lifetime CN203606512U (en) | 2013-11-07 | 2013-11-07 | Metal detection door structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203606512U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842743A (en) * | 2016-03-25 | 2016-08-10 | 东莞市华盾电子科技有限公司 | Detector and production method thereof |
| CN106226826A (en) * | 2016-08-31 | 2016-12-14 | 上海太易检测技术有限公司 | Subregion metal detection machine and subregion metal detection control method |
| CN109708015A (en) * | 2018-12-28 | 2019-05-03 | 上海太易检测技术有限公司 | A kind of lamp tube device for color selector lamp box |
-
2013
- 2013-11-07 CN CN201320700460.6U patent/CN203606512U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842743A (en) * | 2016-03-25 | 2016-08-10 | 东莞市华盾电子科技有限公司 | Detector and production method thereof |
| CN106226826A (en) * | 2016-08-31 | 2016-12-14 | 上海太易检测技术有限公司 | Subregion metal detection machine and subregion metal detection control method |
| CN106226826B (en) * | 2016-08-31 | 2019-05-31 | 上海太易检测技术有限公司 | Subregion metal detection machine and subregion metal detection control method |
| CN109708015A (en) * | 2018-12-28 | 2019-05-03 | 上海太易检测技术有限公司 | A kind of lamp tube device for color selector lamp box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102200528B (en) | On-line detection device for broken wires of wire ropes | |
| CN105241949B (en) | Lubricating oil metal filings monitor the detection circuit and carrier signal demodulation method of device on-line | |
| CN203606512U (en) | Metal detection door structure | |
| JP2017501665A5 (en) | ||
| CN105607137B (en) | A kind of relief well connects detection system and detection method with accident well | |
| CN102759752A (en) | Metal detection device and detection method | |
| WO2014107205A3 (en) | Zero- & Low-Field Transport Detection System | |
| CN103454339B (en) | A kind of autoexcitation shields full magnetic information induction sniffer | |
| CN103971443A (en) | Detection method and device for anti-counterfeiting element | |
| CN106373407A (en) | Vehicle detector based on geomagnetic sensing | |
| CN203172651U (en) | Wheel sensor | |
| CN209728029U (en) | A kind of magnetic circuit device of large range high precision Hall current sensor | |
| CN105068042B (en) | A kind of moving target method of counting based on microphone array | |
| CN203929850U (en) | A kind of current sampling circuit | |
| CN204202662U (en) | A kind of electromagnetic flowmeter based on measuring system | |
| CN203732591U (en) | Detection system and detection device for magnetic field and electromagnetic field interfering electricity stealing | |
| CN201788290U (en) | Metal detection door | |
| Gao et al. | Power cable fault locator based on synchronization principle of sound and magnetic | |
| CN104777371A (en) | Miniature environment field intensity early warning device capable of being worn on human body | |
| CN104266693A (en) | Electromagnetic flow meter measurement system | |
| CN204272041U (en) | Magnet steel amplifier | |
| CN204244186U (en) | A kind of differential amplifier circuit and metal detection door detection system | |
| CN109557168A (en) | A kind of anti-interference high sensitive biphase gas and liquid flow measuring of phase ratio method | |
| CN204866851U (en) | Magnetic induction belted steel position detector | |
| CN203786279U (en) | System for sampling and processing signals of vibrating specimen magnetometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |