CN204666744U - A kind of screened room carrying out electromagnetic compatibility test - Google Patents
A kind of screened room carrying out electromagnetic compatibility test Download PDFInfo
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- CN204666744U CN204666744U CN201520290688.1U CN201520290688U CN204666744U CN 204666744 U CN204666744 U CN 204666744U CN 201520290688 U CN201520290688 U CN 201520290688U CN 204666744 U CN204666744 U CN 204666744U
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Abstract
The utility model relates to the screened room of the carried out electromagnetic compatibility test of electromagnetic measurement field, and it comprises sealing chamber, checkout equipment, fetch equipment, test probe, camera, electromechanical part, receiver and anti-interference proving installation, the inwall of sealing chamber is provided with the closed metal inner tube of one deck, metal inner tube is made up of ELECTROMAGNETIC REFLECTION layer, and full frequency band suction ripple layer is provided with on the surface of metal inner tube, full frequency band is inhaled ripple layer and is installed as bearing substrate with nonwoven fabrics, reasonable integral structure, design science, product is made to be suitable for field widely, can shield various different electromagnetic wave, be particularly useful for high-frequency electromagnetic, integrated testability process is simple and convenient, can carry out at any time observing and contrast, compared with traditional structure, the scope of application is more extensive, test process is simple and convenient, save the time, improve work efficiency, the mode that electromagnetic compatibility test probe adopts ferromagnetic core to be combined with coil, have the advantages that sensitivity is higher, more meet various test request.
Description
Technical field
the utility model relates to electromagnetic measurement field, is specifically related to a kind of screened room carrying out electromagnetic compatibility test.
Background technology
electromagnetic compatibility test is concerning ensuring information safety and reducing electromagnetic pollution, and the application of its proving installation, techniques and methods is more and more important.Effectiveness test is the important component part of electromagnetic compatibility test, effectiveness test be unable to do without electromagnetic screen test macro, traditional electromagnetic screen test macro comprises shield assembly, the emitting antenna be arranged in shield assembly, receiving antenna and detection piece, and microwave signal generator, control system and sampling system.Existing electromagnetic screen test macro function singleness, test structure does not prepare, and test process is by certain restriction.Existing shield assembly is usually with the totally enclosed acceptor that common metal material is made, and cavity has general electro-magnetic screen function.Because this structure is simple, the electromagnetism screen of low frequency can only be applicable to, good shielding action can not be played to the electromagnetism of high frequency or ultrahigh frequency.In addition, existing electromagnetic screen test macro function singleness, only possesses the effect of electromagnetism screen, and application, by considerable restraint, can not utilize its electro-magnetic screen function very fully.
Utility model content
the purpose of this utility model solves above defect, provides a kind of screened room carrying out electromagnetic compatibility test.
The purpose of this utility model is achieved in the following ways:
Carry out a screened room for electromagnetic compatibility test, it comprises sealing chamber, checkout equipment, fetch equipment, test probe, camera, electromechanical part, receiver and anti-interference proving installation.
The inwall of sealing chamber is provided with the closed metal inner tube of one deck, and metal inner tube is made up of ELECTROMAGNETIC REFLECTION layer, and is provided with full frequency band suction ripple layer on the surface of metal inner tube, and full frequency band is inhaled ripple layer and installed as bearing substrate with nonwoven fabrics.
Checkout equipment comprises electromagnetic signal collection module and electromagnetic signal contrast module.
Fetch equipment is connected with checkout equipment, comprises the display screen for reading data and the operating platform for Update Table, for reading the testing result of checkout equipment.
Test probe is arranged in sealing chamber, it comprises ferromagnetic core, the coil be set around on ferromagnetic core, high frequency connectors and passive impedance Circuit tuning, ferromagnetic core is for catching the magnetic signal of testee, coil is used for magnetic signal to be converted into electric signal, high frequency connectors are used for that electric signal is sent to checkout equipment and detect, passive impedance Circuit tuning is connected between coil and high frequency connectors, and the impedance for the output impedance with testee that adjust coil is consistent.
Camera is arranged in sealing chamber, it comprises airtight conductive shell, video camera, photoelectric signal converter, rechargeable battery and charge controller, one side of airtight conductive shell is provided with electro-conductive glass, another side is provided with power switch, video camera, photoelectric signal converter, rechargeable battery and charge controller are all arranged in airtight conductive shell, video camera arrests signal of video signal after aiming at electro-conductive glass, and the signal of video signal that photoelectric signal converter is used for video camera to capture is converted to light signal and is sent to checkout equipment.
Electromechanical part is arranged in sealing chamber, it comprises for the test board of bearing test article, electric rotary, electric bracket platform, rotating disk controller and trestle table controller, electric rotary is electrically connected with rotating disk controller, and electric bracket platform is electrically connected with trestle table controller.
Receiver is arranged in sealing chamber, and it comprises receiving antenna, amplifier and electromagnetic signal transmission line, and the electromagnetic signal that receiving antenna receives is delivered to fetch equipment by electromagnetic signal transmission line after amplifier amplifies.
Anti-interference proving installation is arranged in sealing chamber, it comprises test signal rejection filter, test signal rejection filter is connected with receiver, hinders signal in frequency range, to get rid of the impact of test signal on compatibility for filtering out band corresponding with the frequency of working signal in test signal.
In above-mentioned explanation; as preferred scheme; described anti-interference proving installation also comprises the first bandpass filter and the second bandpass filter; first bandpass filter is arranged between test signal rejection filter and receiving antenna; for carrying out filtering to the electromagnetic signal received, test signal is made to have predetermined test frequency range; Second bandpass filter is arranged between test signal rejection filter and amplifier, and the second bandpass filter is contrary with the filtering characteristic of test signal rejection filter.
In above-mentioned explanation, as preferred scheme, in described airtight conductive shell, be also provided with the angle adjusting mechanism for adjusting video camera.
In above-mentioned explanation, as preferred scheme, be also provided with the good packed layer of electric conductivity between the inwall of described sealing chamber and metal inner tube, the inwall that packed layer is centered around sealing chamber forms a closed cavity.
In above-mentioned explanation, as preferred scheme, be also provided with monitor terminal in described sealing chamber, monitor terminal is connected with fetch equipment.Monitor terminal is for inputting experiment control instruction, client authenticating information, FLV file management instruction to fetch equipment.
in above-mentioned explanation, as preferred scheme, in described sealing chamber, be also provided with fictitious load room, be a public wall between fictitious load room and electromechanical part, it offers through hole.
the beneficial effect that the utility model produces is: rational in infrastructure, design science, increase multiple more practical function, product is made to be suitable for field widely, can shield various different electromagnetic wave, use reliable, be particularly useful for high-frequency electromagnetic, integrated testability process is simple and convenient, can carry out at any time observing and contrast, compared with traditional structure, its integrated testability is more stable, the scope of application is more extensive, test process is simple and convenient, save the time, improve work efficiency, in addition, the mode that electromagnetic compatibility test probe adopts ferromagnetic core to be combined with coil, have the advantages that sensitivity is higher, more meet various test request.
Accompanying drawing explanation
fig. 1 is the structural representation of the utility model embodiment;
In figure, 1 is sealing chamber, and 2 is metal inner tube, and 3 is full frequency band suction ripple layer, and 4 is checkout equipment, and 5 is fetch equipment, and 6 is test probe, and 7 is camera, and 8 is receiver, and 9 is anti-interference proving installation, and 10 is electromechanical part.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
The present embodiment, with reference to Fig. 1, the screened room of its carried out electromagnetic compatibility test specifically implemented comprises sealing chamber 1, checkout equipment 4, fetch equipment 5, test probe 6, camera 7, electromechanical part 10, receiver 8 and anti-interference proving installation 9.
Wherein, the inwall of sealing chamber 1 is provided with the closed metal inner tube 2 of one deck, and metal inner tube 2 is made up of ELECTROMAGNETIC REFLECTION layer, and is provided with full frequency band suction ripple layer 3 on the surface of metal inner tube 2, and full frequency band is inhaled ripple layer 3 and installed as bearing substrate with nonwoven fabrics.
Checkout equipment 4 comprises electromagnetic signal collection module and electromagnetic signal contrast module, and fetch equipment 5 is connected with checkout equipment 4, comprises the display screen for reading data and the operating platform for Update Table, for reading the testing result of checkout equipment 4.
Test probe 6 is arranged in sealing chamber 1, it comprises ferromagnetic core, the coil be set around on ferromagnetic core, high frequency connectors and passive impedance Circuit tuning, ferromagnetic core is for catching the magnetic signal of testee, coil is used for magnetic signal to be converted into electric signal, high frequency connectors are used for that electric signal is sent to checkout equipment 4 and detect, passive impedance Circuit tuning is connected between coil and high frequency connectors, and the impedance for the output impedance with testee that adjust coil is consistent.
Camera 7 is arranged in sealing chamber 1, it comprises airtight conductive shell, video camera, photoelectric signal converter, rechargeable battery and charge controller, one side of airtight conductive shell is provided with electro-conductive glass, another side is provided with power switch, video camera, photoelectric signal converter, rechargeable battery and charge controller are all arranged in airtight conductive shell, video camera arrests signal of video signal after aiming at electro-conductive glass, and the signal of video signal that photoelectric signal converter is used for video camera to capture is converted to light signal and is sent to checkout equipment 4.
Electromechanical part 10 is arranged in sealing chamber 1, it comprises for the test board of bearing test article, electric rotary, electric bracket platform, rotating disk controller and trestle table controller, electric rotary is electrically connected with rotating disk controller, and electric bracket platform is electrically connected with trestle table controller.
Receiver 8 is arranged in sealing chamber 1, and it comprises receiving antenna, amplifier and electromagnetic signal transmission line, and the electromagnetic signal that receiving antenna receives is delivered to fetch equipment 5 by electromagnetic signal transmission line after amplifier amplifies.
Anti-interference proving installation 9 is arranged in sealing chamber 1, it comprises test signal rejection filter, test signal rejection filter is connected with receiver 8, hinders signal in frequency range, to get rid of the impact of test signal on compatibility for filtering out band corresponding with the frequency of working signal in test signal.
The Novel shielding cell structure of the present embodiment is reasonable, design science, increase multiple more practical function, product is made to be suitable for field widely, can shield various different electromagnetic wave, use reliable, be particularly useful for high-frequency electromagnetic, integrated testability process is simple and convenient, can carry out at any time observing and contrast, compared with traditional structure, its integrated testability is more stable, the scope of application is more extensive, test process is simple and convenient, save the time, improve work efficiency, in addition, the mode that electromagnetic compatibility test probe 6 adopts ferromagnetic core to be combined with coil, have the advantages that sensitivity is higher, more meet various test request.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as protection domain of the present utility model.
Claims (4)
1. can carry out a screened room for electromagnetic compatibility test, it is characterized in that it comprises:
Sealing chamber, the inwall of sealing chamber is provided with the closed metal inner tube of one deck, and metal inner tube is made up of ELECTROMAGNETIC REFLECTION layer, and is provided with full frequency band suction ripple layer on the surface of metal inner tube, and full frequency band is inhaled ripple layer and installed as bearing substrate with nonwoven fabrics;
Checkout equipment, comprises electromagnetic signal collection module and electromagnetic signal contrast module;
Fetch equipment, is connected with checkout equipment, comprises the display screen for reading data and the operating platform for Update Table, for reading the testing result of checkout equipment;
Test probe; be arranged in sealing chamber; it comprises ferromagnetic core, the coil be set around on ferromagnetic core, high frequency connectors and passive impedance Circuit tuning; ferromagnetic core is for catching the magnetic signal of testee; coil is used for magnetic signal to be converted into electric signal; high frequency connectors are used for that electric signal is sent to checkout equipment and detect, and passive impedance Circuit tuning is connected between coil and high frequency connectors, and the impedance for the output impedance with testee that adjust coil is consistent;
Camera; be arranged in sealing chamber; it comprises airtight conductive shell, video camera, photoelectric signal converter, rechargeable battery and charge controller; one side of airtight conductive shell is provided with electro-conductive glass; another side is provided with power switch; video camera, photoelectric signal converter, rechargeable battery and charge controller are all arranged in airtight conductive shell; video camera arrests signal of video signal after aiming at electro-conductive glass, and the signal of video signal that photoelectric signal converter is used for video camera to capture is converted to light signal and is sent to checkout equipment;
Electromechanical part; be arranged in sealing chamber; it comprises for the test board of bearing test article, electric rotary, electric bracket platform, rotating disk controller and trestle table controller, and electric rotary is electrically connected with rotating disk controller, and electric bracket platform is electrically connected with trestle table controller;
Receiver, is arranged in sealing chamber, and it comprises receiving antenna, amplifier and electromagnetic signal transmission line, and the electromagnetic signal that receiving antenna receives is delivered to fetch equipment by electromagnetic signal transmission line after amplifier amplifies;
Anti-interference proving installation, be arranged in sealing chamber, it comprises test signal rejection filter, and test signal rejection filter is connected with receiver, signal in frequency range is hindered, to get rid of the impact of test signal on compatibility for filtering out band corresponding with the frequency of working signal in test signal.
2. a kind of screened room carrying out electromagnetic compatibility test according to claim 1; it is characterized in that: described anti-interference proving installation also comprises the first bandpass filter and the second bandpass filter; first bandpass filter is arranged between test signal rejection filter and receiving antenna; for carrying out filtering to the electromagnetic signal received, test signal is made to have predetermined test frequency range; Second bandpass filter is arranged between test signal rejection filter and amplifier, and the second bandpass filter is contrary with the filtering characteristic of test signal rejection filter.
3. a kind of screened room carrying out electromagnetic compatibility test according to claim 1, is characterized in that: be also provided with the angle adjusting mechanism for adjusting video camera in described airtight conductive shell.
4. a kind of screened room carrying out electromagnetic compatibility test according to claim 1, it is characterized in that: be also provided with the good packed layer of electric conductivity between the inwall of described sealing chamber and metal inner tube, the inwall that packed layer is centered around sealing chamber forms a closed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290688.1U CN204666744U (en) | 2015-05-07 | 2015-05-07 | A kind of screened room carrying out electromagnetic compatibility test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290688.1U CN204666744U (en) | 2015-05-07 | 2015-05-07 | A kind of screened room carrying out electromagnetic compatibility test |
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| Publication Number | Publication Date |
|---|---|
| CN204666744U true CN204666744U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520290688.1U Expired - Fee Related CN204666744U (en) | 2015-05-07 | 2015-05-07 | A kind of screened room carrying out electromagnetic compatibility test |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607922A (en) * | 2017-10-17 | 2018-01-19 | 西安飞机工业（集团）有限责任公司 | A kind of method of testing and screening arrangement for aircraft weather radar radiance |
| CN109782195A (en) * | 2019-02-23 | 2019-05-21 | 中国原子能科学研究院 | A kind of induction coil magnetic field measurement system of anti-noise jamming |
| CN110690027A (en) * | 2019-09-07 | 2020-01-14 | 西南计算机有限责任公司 | Heat balance and electromagnetic compatibility device |
| CN111157771A (en) * | 2018-11-08 | 2020-05-15 | 上海音宁电子科技有限公司 | Low-frequency electromagnetic shielding chamber |
| CN111193554A (en) * | 2018-10-25 | 2020-05-22 | 广达电脑股份有限公司 | Signal testing system and anechoic chamber thereof |
-
2015
- 2015-05-07 CN CN201520290688.1U patent/CN204666744U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607922A (en) * | 2017-10-17 | 2018-01-19 | 西安飞机工业（集团）有限责任公司 | A kind of method of testing and screening arrangement for aircraft weather radar radiance |
| CN111193554A (en) * | 2018-10-25 | 2020-05-22 | 广达电脑股份有限公司 | Signal testing system and anechoic chamber thereof |
| CN111193554B (en) * | 2018-10-25 | 2021-11-09 | 广达电脑股份有限公司 | Signal testing system and anechoic chamber thereof |
| CN111157771A (en) * | 2018-11-08 | 2020-05-15 | 上海音宁电子科技有限公司 | Low-frequency electromagnetic shielding chamber |
| CN109782195A (en) * | 2019-02-23 | 2019-05-21 | 中国原子能科学研究院 | A kind of induction coil magnetic field measurement system of anti-noise jamming |
| CN110690027A (en) * | 2019-09-07 | 2020-01-14 | 西南计算机有限责任公司 | Heat balance and electromagnetic compatibility device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160507 |