CN111929510A - Power equipment electromagnetic radiation detection system - Google Patents
Power equipment electromagnetic radiation detection system Download PDFInfo
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- CN111929510A CN111929510A CN202010852488.6A CN202010852488A CN111929510A CN 111929510 A CN111929510 A CN 111929510A CN 202010852488 A CN202010852488 A CN 202010852488A CN 111929510 A CN111929510 A CN 111929510A
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- electromagnetic radiation
- power equipment
- shielding box
- box body
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- 230000005670 electromagnetic radiation Effects 0.000 title claims abstract description 63
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 239000011358 absorbing material Substances 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 15
- 239000007769 metal material Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention provides an electromagnetic radiation detection system for power equipment, which comprises a signal acquisition unit, a shielding box body, a frequency spectrograph and an alarm, wherein the signal acquisition unit is used for acquiring a signal; the electromagnetic radiation detection system is characterized in that the shielding box body shields external electromagnetic interference signals, the signal acquisition unit acquires electromagnetic radiation values of the electric power equipment, and when the electromagnetic radiation values exceed a set reference value, the alarm gives an alarm to ensure the accuracy of electromagnetic radiation detection of the electric power equipment. The invention provides an electromagnetic radiation detection system for electrical equipment, which can quickly and accurately detect electromagnetic radiation of the electrical equipment and ensure the quality of the electrical equipment.
Description
Technical Field
The invention belongs to the technical field of electric power detection, and particularly relates to an electromagnetic radiation detection system for electric power equipment.
Background
As the electrical devices are used more and more, the radiation disturbance in the environment is also more and more. In order to ensure that various electronic devices can work normally in a complex electromagnetic environment, electromagnetic radiation detection needs to be carried out on the electronic devices. Because various electromagnetic disturbance signals exist in the natural environment, when the frequency of the electromagnetic disturbance signals in the environment is the same as the electromagnetic radiation frequency of the power equipment, useful signals cannot be effectively separated by the equipment, and even when the intensity of the environmental noise field is too large, the useful signals can be submerged, so that the detection result is seriously influenced.
The invention provides an electromagnetic radiation detection system for electrical equipment, which adopts a shielding box body with an opening at one end to shield external electromagnetic interference signals, places electrical equipment to be detected into the shielding box body from the opening, has the advantages of simple structure, low cost, short detection time and accurate result, and further judges whether electromagnetic radiation meets requirements.
Disclosure of Invention
The invention provides an electromagnetic radiation detection system for electrical equipment, which can quickly and accurately detect electromagnetic radiation of the electrical equipment and ensure the quality of the electrical equipment.
The invention particularly relates to an electromagnetic radiation detection system for power equipment, which comprises a signal acquisition unit, a shielding box body, a frequency spectrograph and an alarm, wherein the signal acquisition unit is sequentially connected with the frequency spectrograph and the alarm; the electromagnetic radiation detection system is characterized in that the shielding box body shields external electromagnetic interference signals, the signal acquisition unit acquires electromagnetic radiation values of the electric power equipment, and when the electromagnetic radiation values exceed a set reference value, the alarm gives an alarm to ensure the accuracy of electromagnetic radiation detection of the electric power equipment.
The shielding box body is made of a composite metal material with low resistivity and high magnetic conductivity, is hexahedron, has an opening at one end, and is internally paved with a wave-absorbing material so as to reduce the reflection of the external electromagnetic interference signal in the shielding box body, further eliminate the resonance phenomenon and improve the testing accuracy.
The wave-absorbing material is a composite wave-absorbing material, so that noise signals entering the shielding box body are reflected and absorbed for multiple times, and noise is eliminated.
Further, the wave-absorbing material is a pyramidal carbon-containing sponge composite material and comprises a plurality of cones and a base, and the external electromagnetic interference signals are eliminated by utilizing multiple reflection absorption between the cones: when the external electromagnetic interference signal is incident to the surface of the cone at a certain angle, one part of the external electromagnetic interference signal is absorbed by the cone, and the other part of the external electromagnetic interference signal is reflected to the surface of other cones, and is reflected again after being absorbed by other cones; after multiple times of reflection and absorption, the external electromagnetic interference signal reaches the base and is absorbed by the base to reach the composite metal material, and the external electromagnetic interference signal enters the cone again after being reflected by the composite metal material and is absorbed.
Further, direct wave absorbing materials are laid at the bottom of the shielding box body, and oblique wave absorbing materials are laid on four sides.
The signal acquisition unit adopts receiving antenna collection power equipment electromagnetic radiation signal, receiving antenna installs shielding box body innermost side erects the height and is half shielding box body height.
And the frequency spectrograph receives the signal of the receiving antenna and displays the electromagnetic radiation signal of the power equipment.
The frequency spectrograph also comprises a microprocessor which compares the electromagnetic radiation signal of the power equipment with the reference value and controls the alarm to give an alarm if the electromagnetic radiation signal is higher than the reference value.
The frequency spectrograph also comprises an input/output interface, wherein the input/output interface adopts a serial interface, and parameter setting is carried out on the electromagnetic radiation detection system according to the power equipment.
The alarm adopts a buzzer, and buzzes are timely sent out to indicate alarm when the electromagnetic radiation detection system detects that the electromagnetic radiation of the power equipment is high.
Compared with the prior art, the beneficial effects are: the electromagnetic radiation detection system adopts a shielding box body with an opening at one end to shield external electromagnetic interference signals, and places the power equipment to be detected into the shielding box body from the opening, so that the electromagnetic radiation signals of the power equipment with the volume smaller than that of the shielding box body can be accurately detected, whether the electromagnetic radiation meets the requirements is further judged, and an alarm is given in time.
Drawings
Fig. 1 is a schematic structural diagram of an electromagnetic radiation detection system of an electrical device according to the present invention.
Fig. 2 is a schematic structural diagram of a wave-absorbing material of an electromagnetic radiation detection system of an electrical device according to the present invention.
Detailed Description
The following describes in detail a specific embodiment of an electromagnetic radiation detection system for electrical equipment according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the electromagnetic radiation detection system of the present invention includes a signal acquisition unit 2, a shielding box 1, a spectrometer 3, and an alarm 4, wherein the signal acquisition unit is sequentially connected to the spectrometer 3 and the alarm 4, and the power device is placed inside the shielding box 1; the electromagnetic radiation detection system passes through shielding box 1 shields outside electromagnetic interference signal, through signal acquisition unit 2 gathers power equipment electromagnetic radiation value, when exceeding the reference value of setting for, through alarm 4 sends the warning, guarantees right power equipment electromagnetic radiation detection's accuracy to further judge whether electromagnetic radiation meets the requirements.
The shielding box body 1 is made of a composite metal material with low resistivity and high magnetic conductivity, is a hexahedron, has an opening at one end, and is internally paved with a wave-absorbing material so as to reduce the reflection of the external electromagnetic interference signal in the shielding box body, further eliminate the resonance phenomenon and improve the testing accuracy.
The wave-absorbing material is a composite wave-absorbing material, so that noise signals entering the shielding box body 1 are reflected and absorbed for multiple times, and the aims of wide frequency, light weight, strong absorption and compatibility of microwave infrared multi-band electromagnetic wave absorption are fulfilled.
As shown in fig. 2, the wave-absorbing material is a pyramidal carbon-containing sponge composite material, and includes a plurality of cones and a base, and the external electromagnetic interference signal is eliminated by multiple reflection and absorption between the cones: when the external electromagnetic interference signal is incident to the surface of the cone at a certain angle, one part of the external electromagnetic interference signal is absorbed by the cone, and the other part of the external electromagnetic interference signal is reflected to the surface of other cones, and is reflected again after being absorbed by other cones; after multiple times of reflection and absorption, the external electromagnetic interference signal reaches the base and is absorbed by the base to reach the composite metal material, and the external electromagnetic interference signal enters the cone again after being reflected by the composite metal material to be absorbed, so that the wave returning to the space from the tip of the cone is very small, and a good electromagnetic interference attenuation effect is achieved.
The bottom of the shielding box body 1 is paved with a direct wave-absorbing material, and four sides are paved with oblique wave-absorbing materials.
The signal acquisition unit 2 adopts receiving antenna collection power equipment electromagnetic radiation signal, receiving antenna installs shielding box body innermost side erects the height and is half shielding box body height.
And the frequency spectrograph 3 receives the signal of the receiving antenna and displays the electromagnetic radiation signal of the power equipment.
The frequency spectrograph also comprises a microprocessor, and the microprocessor judges whether the electromagnetic radiation of the power equipment meets the requirements: and comparing the electromagnetic radiation signal of the power equipment with the reference value, and controlling the alarm 4 to give an alarm if the electromagnetic radiation signal of the power equipment is higher than the reference value.
The frequency spectrograph also comprises an input/output interface, wherein the input/output interface adopts a serial interface, and parameter setting is carried out on the electromagnetic radiation detection system according to the power equipment.
The alarm 4 adopts a buzzer, and when the electromagnetic radiation detection system detects that the electromagnetic radiation of the power equipment is high, buzzing is timely sent out to indicate alarm.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The electromagnetic radiation detection system for the power equipment is characterized by comprising a signal acquisition unit, a shielding box body, a frequency spectrograph and an alarm, wherein the signal acquisition unit is sequentially connected with the frequency spectrograph and the alarm, and the power equipment is placed in the shielding box body; the electromagnetic radiation detection system is characterized in that the shielding box body shields external electromagnetic interference signals, the signal acquisition unit acquires electromagnetic radiation values of the electric power equipment, and when the electromagnetic radiation values exceed a set reference value, the alarm gives an alarm to ensure the accuracy of electromagnetic radiation detection of the electric power equipment.
2. The system of claim 1, wherein the shielding box is made of a low resistivity and high permeability composite metal material and is a hexahedron with an open end.
3. The power equipment electromagnetic radiation detection system of claim 2, characterized in that a wave-absorbing material is laid inside the shielding box body, and the wave-absorbing material is a composite wave-absorbing material, so that reflection of the external electromagnetic interference signals in the shielding box body can be reduced, and further resonance phenomenon is eliminated.
4. The system for detecting electromagnetic radiation of electric power equipment according to claim 3, wherein the wave-absorbing material is a pyramidal carbon-containing sponge composite material, and comprises a plurality of cones and a base, and the external electromagnetic interference signals are eliminated by multiple reflection and absorption between the cones: when the external electromagnetic interference signal is incident to the surface of the cone at a certain angle, one part of the external electromagnetic interference signal is absorbed by the cone, and the other part of the external electromagnetic interference signal is reflected to the surface of other cones, and is reflected again after being absorbed by other cones; after multiple times of reflection and absorption, the external electromagnetic interference signal reaches the base and is absorbed by the base to reach the composite metal material, and the external electromagnetic interference signal enters the cone again after being reflected by the composite metal material and is absorbed.
5. The system for detecting the electromagnetic radiation of the power equipment as claimed in claim 4, wherein a straight wave-absorbing material is laid at the bottom of the shielding box body, and oblique wave-absorbing materials are laid on four sides of the shielding box body.
6. The system according to claim 5, wherein the signal acquisition unit acquires the electromagnetic radiation signal of the electrical equipment by using a receiving antenna, and the receiving antenna is installed at the innermost side of the shielding box body and is erected at a height half of the height of the shielding box body.
7. The system according to claim 6, wherein the spectrometer receives the signal from the receiving antenna and displays the electromagnetic radiation signal of the electric device.
8. The system according to claim 7, wherein the spectrometer further comprises a microprocessor for comparing the electromagnetic radiation signal of the power equipment with the reference value and controlling the alarm to issue an alarm if the electromagnetic radiation signal of the power equipment is higher than the reference value.
9. The system according to claim 8, wherein the spectrometer further comprises an input/output interface, the input/output interface is a serial interface, and the electromagnetic radiation detection system is configured to set parameters according to the power device.
10. The system for detecting the electromagnetic radiation of the electric power equipment as claimed in claim 9, wherein the alarm employs a buzzer, and when the electromagnetic radiation detection system detects that the electromagnetic radiation of the electric power equipment is high, the buzzer is timely issued to indicate an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010852488.6A CN111929510A (en) | 2020-08-21 | 2020-08-21 | Power equipment electromagnetic radiation detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010852488.6A CN111929510A (en) | 2020-08-21 | 2020-08-21 | Power equipment electromagnetic radiation detection system |
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| CN111929510A true CN111929510A (en) | 2020-11-13 |
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| CN202010852488.6A Pending CN111929510A (en) | 2020-08-21 | 2020-08-21 | Power equipment electromagnetic radiation detection system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113015421A (en) * | 2021-01-25 | 2021-06-22 | 国网浙江省电力有限公司金华供电公司 | Electromagnetic shielding device based on overhead line X-ray detection and verification method |
| CN113295283A (en) * | 2021-06-17 | 2021-08-24 | 北京卫星环境工程研究所 | Infrared temperature measuring device for vacuum, low-temperature and strong electromagnetic field environment |
| CN113411479A (en) * | 2021-06-17 | 2021-09-17 | 北京卫星环境工程研究所 | Camera device for vacuum, low-temperature and strong electromagnetic field environment |
| CN114034935A (en) * | 2021-10-18 | 2022-02-11 | 深圳市域通标准技术服务有限公司 | Electromagnetic radiation pretesting system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204613262U (en) * | 2015-02-08 | 2015-09-02 | 国家电网公司 | A kind of electromagnetic shielding box for the test of acquisition terminal wireless public network communication automation system |
| CN106199217A (en) * | 2016-08-10 | 2016-12-07 | 北京森馥科技股份有限公司 | A kind of device placing electromagnetic radiation monitoring instrument and electromagnetic radiation monitoring system |
| CN107543975A (en) * | 2017-07-06 | 2018-01-05 | 北京交通大学 | Non- full-shield formula motor-car vehicle electromagnetic radiation test device |
-
2020
- 2020-08-21 CN CN202010852488.6A patent/CN111929510A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204613262U (en) * | 2015-02-08 | 2015-09-02 | 国家电网公司 | A kind of electromagnetic shielding box for the test of acquisition terminal wireless public network communication automation system |
| CN106199217A (en) * | 2016-08-10 | 2016-12-07 | 北京森馥科技股份有限公司 | A kind of device placing electromagnetic radiation monitoring instrument and electromagnetic radiation monitoring system |
| CN107543975A (en) * | 2017-07-06 | 2018-01-05 | 北京交通大学 | Non- full-shield formula motor-car vehicle electromagnetic radiation test device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113015421A (en) * | 2021-01-25 | 2021-06-22 | 国网浙江省电力有限公司金华供电公司 | Electromagnetic shielding device based on overhead line X-ray detection and verification method |
| CN113295283A (en) * | 2021-06-17 | 2021-08-24 | 北京卫星环境工程研究所 | Infrared temperature measuring device for vacuum, low-temperature and strong electromagnetic field environment |
| CN113411479A (en) * | 2021-06-17 | 2021-09-17 | 北京卫星环境工程研究所 | Camera device for vacuum, low-temperature and strong electromagnetic field environment |
| CN114034935A (en) * | 2021-10-18 | 2022-02-11 | 深圳市域通标准技术服务有限公司 | Electromagnetic radiation pretesting system |
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Application publication date: 20201113 |
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