CN202661554U - Detection device for low-frequency electromagnetic leakage - Google Patents
Detection device for low-frequency electromagnetic leakage Download PDFInfo
- Publication number
- CN202661554U CN202661554U CN 201220149734 CN201220149734U CN202661554U CN 202661554 U CN202661554 U CN 202661554U CN 201220149734 CN201220149734 CN 201220149734 CN 201220149734 U CN201220149734 U CN 201220149734U CN 202661554 U CN202661554 U CN 202661554U
- Authority
- CN
- China
- Prior art keywords
- circuit
- axis
- signal acquisition
- signal processing
- field signal
- 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 - Fee Related
Links
Images
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a detection device for low-frequency electromagnetic leakage, comprising an X-axis magnetic field signal acquisition circuit, a Y-axis magnetic field signal acquisition circuit, a Z-axis magnetic field signal acquisition circuit (3), an X-axis signal processing circuit (4), a Y-axis signal processing circuit (5), a Z-axis signal processing circuit (6), a microprocessor (7), a display circuit (8), a data storage circuit (9), a communication interface circuit (10), a keyboard circuit (11) and a power supply circuit (12). The utility model provides a detection circuit capable of measuring the low-frequency magnetic field intensities of three directions simultaneously, and thus solving the problem of rapid measurement for the distribution condition of three-dimensional space magnetic fields.
Description
Technical field
The utility model relates to a kind of electromagnetic leakage detection device that can detected electrons product electromagnetic leakage degree.
Background technology
Development along with science and technology, the quantity of the electronic equipment that people use in producing and living is more and more, and these equipment often will produce some useful or useless electromagnetic energies in running, these energy can affect the work of miscellaneous equipment or system, electromagnetic interference (EMI) that Here it is.
Electromagnetic leakage can reduce the serviceability of electronic equipment: according to incompletely statistics, whole world electronic electric equipment all causes the economic loss of multi-billion dollar every year owing to electromagnetic interference (EMI) breaks down.For example, the interference of the large power, electrically magnetic signals such as beeper transmitting station affects the aircraft Normal Take-Off And Landing; Mobile telephone signal disturbs and can make instrument show mistake, even can cause nuclear power station breakdown.The US Airways radio council once mentioned in a file, owing to electromagnetic leakage is not taked necessary protection, a passenger uses FM receiver aboard, the indication of navigational system is departed from more than 10 °, therefore in the world, the electromagnetic environment of carrier-borne, airborne, spaceborne and terrestrial weapon, ammunition is had strict demand, Northwest Airlines Lnc once issued a public proclamation in 1993, the restriction passenger uses mobile phone and FM receiver etc., in order to avoid electromagnetic leakage harassing and wrecking navigational system.
Electromagnetic leakage is known from experience the people and is produced harm: in modern society, and increasing along with electronic product, electromagnetism distributes also day by day complicated, as long as people's place is arranged, does not exist nowhere electromagnetic field.And occupy biology and the abiotic impact that all will be subject to it around the electromagnetic field.People were because comprehensive not to the understanding of electromagnetic field in the past, do not manage well it, make electromagnetic radiation day by day serious, and electromagnetic field itself produces negative interaction to biology to the radiation of surrounding space subtlely, so that it affects the normal life of the mankind and animal day by day, so electromagenetic wave radiation becomes the fourth-largest environomental pollution source after water source, atmosphere and noise, therefore, countries in the world have been done in this respect a large amount of research and have been formulated some safeguard procedures all to this and pay close attention to.
Electromagnetic pollution source is very extensive, and it just around our life, almost comprises all household electrical appliances, and the degree of just polluting has dividing of power.Computing machine stands in the breach, and is because people must operate Face to face with it, and Long contact time, contacts at a distance unlike the TV function.Since nineteen ninety-four the follow-up investigation that the working women of nearly ten thousand long period of operation computer carries out is shown according to Institute for Medical Research of Univ Munich Germany, the danger that the women of long-time operation computer suffers from breast cancer, she career woman's probability exceeds 43% than it, the researchist carries out simulated experiment with female white mouse at elect magnetic field, cancer appears in the mammary gland of finding soon white mouse, and its growth rate is relevant with magnetic field intensity.
The video screens such as microcomputer can produce great electromagnetic radiation, and are unfavorable to health, more obvious on pregnant woman's impact, larger to 1-3 month fetus harm.According to a report of the U.S., De Baite company is worked before video screen by 12 pregnant woman, 7 pregnant woman's miscarriages is arranged unexpectedly, 1 premature labor in pregnant women between 1 year; National defence bureau of military service has 15 pregnant woman to work before video screen, and 7 people miscarriage is arranged, and 3 people give birth to lopsided baby, and such a example is innumerable.
World today's Mobile Communication Development is rapid, China mobile phone handsets user has reached 300,000,000, the cellphone subscriber has surpassed the U.S. and Japan, become the in the world maximum country of cellphone subscriber, the mobile phone holder wishes can both obtain communication service anywhere, and this necessity of making use of momentum asks the mobile communication base station ubiquitous.Mobile phone is to pay close attention to most in people's daily life to harm and the safeguard procedures thereof of human body, it simultaneously also is the problem of hottest point in the world, because they directly face toward people's brain radiated electromagnetic wave with antenna, more seriously, people get used to mobile phone tightly is close to the ear speech, and the radiation power more than 20% has all been absorbed by brain.About the impact of mobile phone radiation on human body, countries in the world are all in research.
Therefore, many research institutions and manufacturer are all at the product for civilian use of in succession researching and developing anti-electromagnetic radiation, to reduce electromagnetic radiation to the harm of human health.Any biology or equipment all are among the encirclement of electromagnetism, and affected by it, unless take certain barrier protection.Development and progress along with society, electromagnetic radiation pollution is more and more serious to the harm of environment, thus, electromagnetic wave is information carrier and the energy flow carrier that is of value to social development, it is again the pollution key element that is harmful to the human lives, its harm has caused domestic and international great attention, therefore, the electromagnetic leakage that a kind of electromagnetic leakage detecting system that the utility model proposes can detect our living environment and electronic product real-time and accurately pollutes, and giving accurate judgement to testing result, this system has very important actual application value.
The utility model content
How technical problem to be solved in the utility model utilizes computer technology, improves the detection efficiency of electronic product electromagnetic pollution, provides important detection means for user selection goes out the environment-friendly electronic product.
For solving the problems of the technologies described above, the utility model provides a kind of low frequency electromagnetic leak detecting device, comprises X-axis field signal Acquisition Circuit, Y-axis field signal Acquisition Circuit, Z axis field signal Acquisition Circuit, X-axis signal processing circuit, Y-axis signal processing circuit, Z axis signal processing circuit, microprocessor, display circuit, data storage circuitry, communication interface circuit, keyboard circuit and power circuit; The output terminal of X-axis field signal Acquisition Circuit is connected with the input end of X-axis signal processing circuit; The output terminal of Y-axis field signal Acquisition Circuit is connected with the input end of Y-axis signal processing circuit; The output terminal of Z axis field signal Acquisition Circuit is connected with the input end of Z axis signal processing circuit; X-axis signal processing circuit, Y-axis signal processing circuit and Z axis signal processing circuit are connected output terminal and are connected with microprocessor A/D port respectively; The input end of display circuit is connected with microprocessor I/O mouth; The input end of data storage circuitry is connected with the microprocessor data mouth; The digital received and sent port of communication interface circuit is connected with the microprocessor communication interface; The output terminal of keyboard circuit is connected with microprocessor I/O mouth; The output terminal of power circuit is connected with power supply of microprocessor.
X-axis field signal Acquisition Circuit, Y-axis field signal Acquisition Circuit, Z axis field signal Acquisition Circuit are placed by orthogonal three directions respectively, measure simultaneously three direction of principal axis magnetic fields.
X-axis field signal Acquisition Circuit is comprised of voltage transitions chip (U1) and inductive coil (L1), and voltage transitions chip (U1) is provided with 5 pins; Inductive coil (L1) end is connected with 5 pin of voltage transitions chip (U1) by resistance (R1), inductive coil (L1) other end is connected with 3 pin of voltage transitions chip (U1) by resistance (R2), described resistance (R3) is connected with 3 pin of voltage transitions chip (U1) with electric capacity (C3) rear end in parallel, and the other end is connected as output terminal with 2 pin of voltage transitions chip (U1).
By technique scheme, the utlity model has positive effect: in the low frequency electromagnetic leak detecting device of the present utility model, X-axis field signal Acquisition Circuit (1), Y-axis field signal Acquisition Circuit (2), Z axis field signal Acquisition Circuit (3) are placed by orthogonal three directions respectively, can measure three direction magnetic fields simultaneously.
In sum, the low frequency electromagnetic leak detecting device of the utility model special construction has easy to use, reliable and the low advantage of cost.It has above-mentioned many advantages and practical value, and in like product, publish or use and really genus innovation there are no similar structural design, no matter it structurally or larger improvement all arranged on the function, have large improvement technically, and produced handy and practical effect, and more existing electromagnetic leakage detector has the multinomial effect of enhancement, thus more be suitable for practicality, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, below with preferred embodiment of the present utility model and cooperate accompanying drawing to be described in detail as follows.
Description of drawings
Fig. 1 is the theory diagram of the low frequency electromagnetic leak detecting device of embodiment 1.
Fig. 2 is the X-axis field signal Acquisition Circuit of embodiment 1.
Fig. 3 is the Y-axis field signal Acquisition Circuit of embodiment 1.
Fig. 4 is the Z axis field signal Acquisition Circuit of embodiment 1.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, Fig. 1 of present embodiment, the low frequency electromagnetic leak detecting device comprises X-axis field signal Acquisition Circuit 1, Y-axis field signal Acquisition Circuit 2, Z axis field signal Acquisition Circuit 3, X-axis signal processing circuit 4, Y-axis signal processing circuit 5, Z axis signal processing circuit 6, microprocessor 7, display circuit 8, data storage circuitry 9, communication interface circuit 10, keyboard circuit 11 and power circuit 12; The output terminal of X-axis field signal Acquisition Circuit 1 is connected with the input end of X-axis signal processing circuit 4; The output terminal of Y-axis field signal Acquisition Circuit 2 is connected with the input end of Y-axis signal processing circuit 5; The output terminal of Z axis field signal Acquisition Circuit 3 is connected with the input end of Z axis signal processing circuit 6; The output terminal that X-axis signal processing circuit 4, Y-axis signal processing circuit 5 and Z axis signal processing circuit are connected is connected with microprocessor 7A/D port respectively; The input end of display circuit 8 is connected with microprocessor 7I/O mouth; The input end of data storage circuitry 9 is connected with microprocessor 7 data port; The digital received and sent port of communication interface circuit 10 is connected with microprocessor 7 communication interfaces; The output terminal of keyboard circuit 11 is connected with microprocessor 7I/O mouth; The output terminal of power circuit 12 is connected with microprocessor 7 power supplys.
X-axis field signal Acquisition Circuit 1, Y-axis field signal Acquisition Circuit 2, Z axis field signal Acquisition Circuit 3 are placed by orthogonal three directions respectively, measure simultaneously three direction of principal axis magnetic fields.
Fig. 2 of present embodiment, X-axis field signal Acquisition Circuit 1 is comprised of voltage transitions chip (U1) and inductive coil (L1), and voltage transitions chip (U1) is provided with 5 pins; Inductive coil (L1) end is connected with 5 pin of voltage transitions chip (U1) by resistance (R1), inductive coil (L1) other end is connected with 3 pin of voltage transitions chip (U1) by resistance (R2), described resistance (R3) is connected with 3 pin of voltage transitions chip (U1) with electric capacity (C3) rear end in parallel, and the other end is connected as output terminal with 2 pin of voltage transitions chip (U1).
Also comprise two capacitor C that strobe 1 and capacitor C 2, capacitor C 1 one end ground connection, 1 pin of other end voltage transitions chip U1 connects, capacitor C 2 one end ground connection, 5 pin of other end voltage transitions chip U1 connect.
The 1 pin input 5V voltage of voltage transitions chip U1,4 pin ground connection, 3 pin and 5 pin are exported respectively 2.5V voltage.
Inductive coil L1 is the open circuit inductive coil that is wrapped on the cylinder shape magnetic core.
Fig. 3 of present embodiment and Fig. 4, identical with Fig. 2 structure.
The technological innovation of the utility model electromagnetic leakage detecting system that above-mentioned structure like this consists of all has many saving graces for technician of the same trade now, and the progressive that really possesses skills.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (3)
1. low frequency electromagnetic leak detecting device, it is characterized in that, comprise X-axis field signal Acquisition Circuit (1), Y-axis field signal Acquisition Circuit (2), Z axis field signal Acquisition Circuit (3), X-axis signal processing circuit (4), Y-axis signal processing circuit (5), Z axis signal processing circuit (6), microprocessor (7), display circuit (8), data storage circuitry (9), communication interface circuit (10), keyboard circuit (11) and power circuit (12); The output terminal of X-axis field signal Acquisition Circuit (1) is connected with the input end of X-axis signal processing circuit (4); The output terminal of Y-axis field signal Acquisition Circuit (2) is connected with the input end of Y-axis signal processing circuit (5); The output terminal of Z axis field signal Acquisition Circuit (3) is connected with the input end of Z axis signal processing circuit (6); X-axis signal processing circuit (4), Y-axis signal processing circuit (5) are connected 6 with the Z axis signal processing circuit) output terminal be connected with microprocessor (7) A/D port respectively; The input end of display circuit (8) is connected with microprocessor (7) I/O mouth; The input end of data storage circuitry (9) is connected with microprocessor (7) data port; The digital received and sent port of communication interface circuit (10) is connected with microprocessor (7) communication interface; The output terminal of keyboard circuit (11) is connected with microprocessor (7) I/O mouth; The output terminal of power circuit (1 2) is connected with microprocessor (7) power supply.
2. low frequency electromagnetic leak detecting device as claimed in claim 1, it is characterized in that, X-axis field signal Acquisition Circuit (1), Y-axis field signal Acquisition Circuit (2), Z axis field signal Acquisition Circuit (3) are placed by orthogonal three directions respectively, measure simultaneously three direction of principal axis magnetic fields.
3. low frequency electromagnetic leak detecting device as claimed in claim 1, it is characterized in that, X-axis field signal Acquisition Circuit (1) is comprised of voltage transitions chip (U1) and inductive coil (L1), and voltage transitions chip (U1) is provided with 5 pins; Inductive coil (L1) end is connected with 5 pin of voltage transitions chip (U1) by resistance (R1), inductive coil (L1) other end is connected with 3 pin of voltage transitions chip (U1) by resistance (R2), described resistance (R3) is connected with 3 pin of voltage transitions chip (U1) with electric capacity (C3) rear end in parallel, and the other end is connected as output terminal with 2 pin of voltage transitions chip (U1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149734 CN202661554U (en) | 2012-04-05 | 2012-04-05 | Detection device for low-frequency electromagnetic leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149734 CN202661554U (en) | 2012-04-05 | 2012-04-05 | Detection device for low-frequency electromagnetic leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661554U true CN202661554U (en) | 2013-01-09 |
Family
ID=47456452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220149734 Expired - Fee Related CN202661554U (en) | 2012-04-05 | 2012-04-05 | Detection device for low-frequency electromagnetic leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661554U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062512A (en) * | 2014-06-11 | 2014-09-24 | 工业和信息化部电子第五研究所 | Two-way board-level radio frequency magnetic field probe |
| CN109142888A (en) * | 2018-09-25 | 2019-01-04 | 北京空间飞行器总体设计部 | A kind of satellite electromagnetic leakage localization method and system |
-
2012
- 2012-04-05 CN CN 201220149734 patent/CN202661554U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062512A (en) * | 2014-06-11 | 2014-09-24 | 工业和信息化部电子第五研究所 | Two-way board-level radio frequency magnetic field probe |
| CN109142888A (en) * | 2018-09-25 | 2019-01-04 | 北京空间飞行器总体设计部 | A kind of satellite electromagnetic leakage localization method and system |
| CN109142888B (en) * | 2018-09-25 | 2020-12-18 | 北京空间飞行器总体设计部 | Satellite electromagnetic leakage positioning method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202929077U (en) | Electricity stealing resistant device and its system | |
| CN102761816B (en) | Testing circuit, testing device and testing method of Bluetooth earphone Don and Doff function | |
| CN105158643A (en) | Remote control detecting device for corrosion state of grounding grid horizontal voltage-sharing conductor of substation | |
| CN202661554U (en) | Detection device for low-frequency electromagnetic leakage | |
| CN103267901A (en) | Electromagnetic wave strength detection device and method | |
| CN102539938A (en) | Electromagnetic leakage detecting system | |
| CN104698265A (en) | High-voltage direct current transmission line corona loss measurement system | |
| CN102495381A (en) | Induction type electromagnetic leakage detection device and method | |
| CN105025522B (en) | Electrical power distribution automatization system wireless communication Auto-Test System based on Matlab | |
| CN204142894U (en) | A kind of portable ultrahigh frequency partial discharge detector based on RFID | |
| CN206348903U (en) | A kind of high-voltage electromagnetic safety pre-warning system | |
| CN104571367A (en) | Case with electric leakage detection function | |
| CN206743253U (en) | A kind of wireless test and the device for being easy to convert built-in aerial | |
| CN103675202A (en) | Battery-free air quality detector based on NFC (near field communication) | |
| CN205625917U (en) | Electrocardio and body temperature monitor | |
| CN204989391U (en) | Horizontal voltage -sharing conductor etch state remote control detection device of substation grounding grid | |
| CN211653423U (en) | Intelligent watch with wireless charging function | |
| CN203606486U (en) | Electric energy meter tester and system | |
| CN210244364U (en) | Indoor high-power supply low-count special transformer user power utilization inspection simulation platform | |
| CN207882350U (en) | A kind of total electric field measuring system | |
| CN202854212U (en) | Manganin current sampling device with external magnetic field interference resistance | |
| CN201479537U (en) | Electromagnetic shielding case | |
| CN201277986Y (en) | Single-phase electric energy meter | |
| CN202475538U (en) | Electroscope cellphone | |
| CN205581174U (en) | Multi -functional smart meter case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20130405 |