CN201589796U - Electromagnetic wave darkroom - Google Patents
Electromagnetic wave darkroom Download PDFInfo
- Publication number
- CN201589796U CN201589796U CN2009202702893U CN200920270289U CN201589796U CN 201589796 U CN201589796 U CN 201589796U CN 2009202702893 U CN2009202702893 U CN 2009202702893U CN 200920270289 U CN200920270289 U CN 200920270289U CN 201589796 U CN201589796 U CN 201589796U
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- darkroom
- absorbing material
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Abstract
An electromagnetic wave darkroom is applied to electromagnetic compatibility (EMC) testing experiments and comprises a testing room, a movable wave absorption unit and an antenna. The movable wave absorption unit capable of being pushed conveniently is arranged in the testing room so as to offer a full-electromagnetic wave dark environment or semi-electromagnetic wave dark environment. The design not only dispenses with the cost for respectively building two different darkrooms in the prior art, but also avoids a large amount of labor and time cost needed for transforming the darkrooms and simultaneously, can provide consistent environmental parameters to ensure testing stability.
Description
Technical field
The utility model relates to a kind of electromagnetic wave darkroom, particularly a kind of electromagnetic wave darkroom of carrying out full electromagnetic wave test and half electromagnetic wave test.
Background technology
With regard to existing electromagnetic compatibility test, electromagnetic compatibility test can carry out in electromagnetic wave darkroom (anechoic chamber), installs in order to reduce the absorbing material of inside surface reflection of electromagnetic wave in the electromagnetic wave darkroom, for example inhales the ripple foam.In the implementation process of different electromagnetic compatibility (EMC) test, employed electromagnetic wave darkroom is divided into two kinds again, be full electromagnetic wave darkroom (fullyanechoic chamber) and half electromagnetic wave darkroom (semi-anechoic chamber), described full electromagnetic wave darkroom is meant the whole absorbing materials of installing in the surface in the darkroom, and described half electromagnetic wave darkroom is meant that installation is reflected the ground connection flat board on the ground in the darkroom, and remaining surface is all installed absorbing material.
Hence one can see that, if satisfy the needs of full electromagnetic wave test and half electromagnetic wave test simultaneously, will build aforesaid two kinds of darkrooms respectively, but this measure meeting produces the huge disappearance of expense, perhaps mobile absorbing material is to put out required darkroom form, but transform the darkroom by this kind mode and can waste a large amount of time and manpower, in addition, owing to absorbing material is easy to because the error of putting causes electromagnetic wave to survey the characteristic instability of recognizing the place, causing the radiant quantity error big, and then cause the inaccuracy of test.
Therefore, how to design a kind of electromagnetic wave darkroom that has full electromagnetic wave test and half electromagnetic wave test concurrently, to avoid above-mentioned disadvantages, the problem that reality needs to be resolved hurrily at present for the dealer of association area.
Summary of the invention
Shortcoming in view of above-mentioned prior art, fundamental purpose of the present utility model is to provide a kind of electromagnetic wave darkroom, to expend huge fund or transform the darkroom and consume manpower and time again to solve the two kinds of darkrooms of construction respectively that exist in the prior art, and easily cause testing problem such as instability again.
For reaching above-mentioned purpose and other relevant purpose, the utility model provides a kind of electromagnetic wave darkroom, is applied in electromagnetic compatibility (EMC) test experiments, and it comprises: test cabinet, and antenna, and move and inhale the ripple unit.Wherein said test cabinet has a floor and five masks have the suction ripple wall of absorbing material and form a test space, is provided with the test universal stage in this test space and is positioned over test table on this test universal stage, and this test table is gone up the placement Devices to test; Described antenna and this Devices to test maximum gauge outer rim are at a distance of a preset distance; Described mobile suction ripple unit is arranged at the zone between this test universal stage and the antenna, have absorbing material, in order to the substrate that carries this absorbing material and be installed in rolling body on this substrate, move by this and to inhale the ripple unit and realize switching between complete/half electromagnetic wave darkroom.
In an embodiment in electromagnetic wave of the present utility model darkroom, this moves the absorbing material of inhaling on ripple unit and this suction ripple wall and is suction ripple foam.The overall height that should move inhale absorbing material, substrate and the rolling body of ripple unit is one to be less than or equal to the preset value of 30cm.This floor is reflection ground connection flat board.
In addition, when half electromagnetic wave darkroom environment is provided, passes and open this and move and inhale the ripple unit to expose the floor area between this test universal stage and antenna, the longitudinal length of the floor area that this exposes is more than or equal to the maximum gauge of this Devices to test.
As mentioned above, electromagnetic wave of the present utility model darkroom comprises test cabinet, moves and inhale ripple unit and antenna, mainly be by the mobile suction ripple unit that can conveniently pass is set in the darkroom, so that full electromagnetic wave darkroom environment or half electromagnetic wave darkroom environment to be provided, so design, not only save the expense that needs in the prior art to build two kinds of different darkrooms respectively and produce, also avoided because of transforming a large amount of manpowers and the time cost that the darkroom produces, and made test environment parameter consistent and guaranteed the stability of test simultaneously.
Description of drawings
Fig. 1 provides the schematic top plan view of full electromagnetic wave darkroom environment for electromagnetic wave of the present utility model darkroom.
Fig. 2 is the mobile suction ripple cell side view in electromagnetic wave of the present utility model darkroom.
Fig. 3 provides the schematic top plan view of half electromagnetic wave darkroom environment for electromagnetic wave of the present utility model darkroom.
The primary clustering symbol description
1 test cabinet
11 floors
110 test spaces
112 test tables
113 test universal stages
114 antennas
12 inhale the ripple wall
13,31 absorbing materials
2 Devices to tests
3,3 ' move suction ripple unit
32 substrates
33 rolling bodys
The L1 preset distance
The L2 longitudinal length
The H overall height
D Devices to test maximum gauge
A, the B direction of arrow
Embodiment
Below by specific instantiation technology contents of the present utility model is described, those skilled in the art can understand other advantage of the present utility model and effect easily by the content that this instructions disclosed.The utility model also can be implemented or be used by other different instantiation, and the every details in this instructions also can be carried out various modifications and change based on different viewpoints and application under not departing from spirit of the present utility model.
See also Fig. 1 to Fig. 3, Fig. 1 provides the schematic top plan view of full electromagnetic wave darkroom environment for electromagnetic wave of the present utility model darkroom; Fig. 2 is the mobile suction ripple cell side view in electromagnetic wave of the present utility model darkroom; Fig. 3 provides the schematic top plan view of half electromagnetic wave darkroom environment for electromagnetic wave of the present utility model darkroom.Need to prove, it is graphic that Fig. 1 to Fig. 3 is the signal of simplification, and basic conception of the present utility model only is described in a schematic way, therefore only show the assembly relevant with the utility model in graphic but not component count, shape and size drafting when implementing according to reality, kenel, quantity and the ratio of each assembly can be a kind of random change during its actual enforcement.
As shown in the figure, when electromagnetic compatibility (EMC) test is carried out in order to the test table 112 of placing Devices to test in electromagnetic wave of the present utility model darkroom, can provide the two kinds of darkrooms in full electromagnetic wave darkroom and half electromagnetic wave darkroom environment to select for the tester, particularly, electromagnetic wave of the present utility model darkroom is in order to carry out the electromagnetic wave test operation of test events such as EMI, CE, RE to the Devices to test that is positioned on the test table 112, and this electromagnetic wave darkroom comprises test cabinet 1, moves and inhale ripple unit 3 and antenna 114.
This test cabinet 1 has the suction ripple wall 12 that a floor 11, antenna 114 and five masks have absorbing material 13, described suction ripple wall 12 forms the test space 110 around this floor 11, be provided with test universal stage 113 in this test space 110 and be placed on test table 112 on this test universal stage 113, place Devices to test 2 on this test table 112, these Devices to test 2 peripheral regions are test zone, and described test zone is promptly practised the stilling the theatre zone of title.In addition, this floor 11 is provided with the half electromagnetic wave darkroom that meets laws and regulations requirement for reflection ground connection flat board to provide.
Be provided with absorbing material 13 in order to center on this floor 11 with a plurality of suction ripple walls 12 that form this test space 110 on this test cabinet 1, this absorbing material 13 is for example for inhaling the ripple foam, and for to reach good wave absorbtion, this absorbing material 13 has the cross section of indentation, as shown in Figure 2.
See also Fig. 2, this moves suction ripple unit 3 and has absorbing material 31, substrate 32 and rolling body 33.This substrate 32 is in order to carry this absorbing material 31.This rolling body 33 is installed on this substrate 32, inhales ripple unit 3 and passes appropriate location to this test space 110 will move by this rolling body 33, and then full electromagnetic wave darkroom environment or half electromagnetic wave darkroom environment are provided.In addition, the zone definitions between this test universal stage and the antenna for inhaling ripple unit put area, is inhaled the position that ripple unit 3 should be put thereby determine should move in the environment of full electromagnetic wave darkroom.
As shown in Figure 2, the overall height H of this absorbing material material 31, substrate 32 and rolling body 33 is a preset value, in the present embodiment, should move the overall height of absorbing material 31, substrate 32 and the rolling body 33 of inhaling ripple unit 3 for being less than or equal to 30cm, to meet the requirement of current law to the electromagnetic wave darkroom, but, still can should move the overall height of inhaling ripple unit 3 according to the demand appropriate change of electromagnetic wave test not as limit.
This antenna 114 is located at this suction ripple unit put area and is deviated from a side of this Devices to test 2, also promptly with the maximum gauge outer rim of this Devices to test 2 at a distance of a preset distance L1.In the present embodiment, this preset distance L1 is 3m, and particularly, the phase center of this antenna 114 to the minor increment of the maximum gauge outer rim of this Devices to test 2 is 3m, meeting the requirement of current law to the electromagnetic wave darkroom, but not as limit.
In the present embodiment, this absorbing material 13 of inhaling on the ripple wall 12 is suction ripple foam, and this moves absorbing material 31 of inhaling ripple unit 3 also is to inhale the ripple foam.
It should be noted that have a plurality of rolling bodys 33,, and then removed the carrying absorbing material that exists in the prior art from and need expend problems such as a large amount of time and manpower so that it is passed is very convenient laborsaving owing to should move inhale ripple unit 3.
When desire makes up full electromagnetic wave darkroom, can be as shown in Figure 1, should move and inhale ripple unit 3 and pass to this towards graphic direction of arrow A and inhale in ripple unit put area, covering the floor area of 114 on this Devices to test 2 and antenna, and then reach the desired test environment demanding criteria in full electromagnetic wave darkroom.
When desire makes up half electromagnetic wave darkroom, as shown in Figure 3, can open towards graphic direction of arrow B passing in this suction ripple unit put area certainly moving suction ripple unit 3 ', leave suction ripple unit put area fully so that move suction ripple unit 3 ', to expose is this floor 11 of reflection ground connection flat board, and then reaches the desired test environment demanding criteria in half electromagnetic wave darkroom.It should be noted that, when half electromagnetic wave darkroom environment is provided, passing is opened this and is moved suction ripple unit 3 ', to expose the floor area between this test universal stage 113 and antenna 114, the longitudinal length L2 of the floor area that this exposes should be more than or equal to the maximum dimension D of this Devices to test, to meet the test environment requirement in double electromagnetic wave darkroom of current law.
In sum, the electromagnetic wave darkroom that is used for electromagnetic compatibility (EMC) test experiments of the present utility model comprises test cabinet, moves and inhale ripple unit and antenna.By the mobile suction ripple unit that can conveniently pass is set in test cabinet, so that full electromagnetic wave dark situation or half electromagnetic wave dark situation to be provided, so design, not only save the expense that needs in the prior art to build two kinds of different darkrooms respectively and produce, also can avoid because of transforming a large amount of manpowers and the time cost that the darkroom produces, can provide conforming environmental parameter simultaneously and the stability of guaranteeing to test.
The foregoing description is illustrative principle of the present utility model and effect thereof only, but not is used to limit the utility model.Any those skilled in the art all can be under spirit of the present utility model and category, and the foregoing description is modified and changed.Therefore, any those skilled in the art modify or change not breaking away from all equivalences of being finished under spirit that the utility model discloses and the technological thought, must be contained by claims scope of the present utility model.
Claims (6)
1. electromagnetic wave darkroom is applied to it is characterized in that this electromagnetic wave darkroom comprises in the electromagnetic compatibility test experiment:
Test cabinet, having a floor and five masks has the suction ripple wall of absorbing material and forms a test space, is provided with the test universal stage in this test space and is positioned over test table on this test universal stage, and this test table is gone up the placement Devices to test;
Antenna, with this Devices to test maximum gauge outer rim at a distance of a preset distance; And
Move and inhale the ripple unit, be arranged on the zone between this test universal stage and the antenna, have absorbing material, in order to the substrate that carries this absorbing material and be installed in rolling body on this substrate, move by this and to inhale the ripple unit and realize switching between complete/half electromagnetic wave darkroom.
2. electromagnetic wave as claimed in claim 1 darkroom is characterized in that, this moves the absorbing material of inhaling on the ripple unit and is suction ripple foam.
3. electromagnetic wave as claimed in claim 1 darkroom is characterized in that, this absorbing material of inhaling on the ripple wall is suction ripple foam.
4. electromagnetic wave as claimed in claim 1 darkroom is characterized in that, this overall height that moves absorbing material, substrate and the rolling body of inhaling the ripple unit is one to be less than or equal to the preset value of 30cm.
5. electromagnetic wave as claimed in claim 1 darkroom, it is characterized in that, when half electromagnetic wave darkroom environment is provided, passing is opened this and is moved suction ripple unit to expose the floor area between this test universal stage and antenna, and the longitudinal length of the floor area that this exposes is more than or equal to the maximum gauge of this Devices to test.
6. electromagnetic wave as claimed in claim 1 darkroom is characterized in that, this floor is reflection ground connection flat board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202702893U CN201589796U (en) | 2009-11-27 | 2009-11-27 | Electromagnetic wave darkroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202702893U CN201589796U (en) | 2009-11-27 | 2009-11-27 | Electromagnetic wave darkroom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201589796U true CN201589796U (en) | 2010-09-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202702893U Expired - Fee Related CN201589796U (en) | 2009-11-27 | 2009-11-27 | Electromagnetic wave darkroom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201589796U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102711423A (en) * | 2012-05-25 | 2012-10-03 | 昆山市飞荣达电子材料有限公司 | Conductive foam capable of absorbing waves |
| CN103091523A (en) * | 2011-10-31 | 2013-05-08 | 鸿富锦精密工业（深圳）有限公司 | Changing-over type anechoic chamber |
| CN103163340A (en) * | 2011-12-12 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Electric wave darkroom |
| CN105911393A (en) * | 2015-02-24 | 2016-08-31 | 沃尔夫冈·奥皮茨 | Test chamber for emv measurement |
| CN107086377A (en) * | 2017-04-21 | 2017-08-22 | 北京航空航天大学 | The suction wave reflection battle array control device of feed mirror image beam in a kind of Compact Range darkroom |
| WO2018098872A1 (en) * | 2016-12-01 | 2018-06-07 | 深圳市新益技术有限公司 | Support platform and antenna measurement isolation room |
| CN110383085A (en) * | 2017-03-06 | 2019-10-25 | 蓝博测试有限公司 | For measuring the arrangement and method of the performance of the equipment with radio function |
| CN114264959A (en) * | 2021-12-08 | 2022-04-01 | 中国汽车工程研究院股份有限公司 | EMC performance test system under fuel cell system loading condition |
| WO2023240928A1 (en) * | 2022-06-17 | 2023-12-21 | 深圳市通用测试系统有限公司 | Test system for vehicle-mounted antenna |
-
2009
- 2009-11-27 CN CN2009202702893U patent/CN201589796U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091523A (en) * | 2011-10-31 | 2013-05-08 | 鸿富锦精密工业（深圳）有限公司 | Changing-over type anechoic chamber |
| CN103091523B (en) * | 2011-10-31 | 2017-01-25 | 鸿富锦精密工业（深圳）有限公司 | Changing-over type anechoic chamber |
| CN103163340A (en) * | 2011-12-12 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Electric wave darkroom |
| CN102711423A (en) * | 2012-05-25 | 2012-10-03 | 昆山市飞荣达电子材料有限公司 | Conductive foam capable of absorbing waves |
| CN105911393A (en) * | 2015-02-24 | 2016-08-31 | 沃尔夫冈·奥皮茨 | Test chamber for emv measurement |
| US10094865B2 (en) | 2015-02-24 | 2018-10-09 | Wolfgang Opitz | Test chamber for electromagnetic compatibility measurement and test chamber validation method |
| WO2018098872A1 (en) * | 2016-12-01 | 2018-06-07 | 深圳市新益技术有限公司 | Support platform and antenna measurement isolation room |
| CN110383085A (en) * | 2017-03-06 | 2019-10-25 | 蓝博测试有限公司 | For measuring the arrangement and method of the performance of the equipment with radio function |
| CN110383085B (en) * | 2017-03-06 | 2021-10-01 | 蓝博测试有限公司 | Measurement apparatus and method for measuring performance of wireless-enabled device |
| CN107086377A (en) * | 2017-04-21 | 2017-08-22 | 北京航空航天大学 | The suction wave reflection battle array control device of feed mirror image beam in a kind of Compact Range darkroom |
| CN114264959A (en) * | 2021-12-08 | 2022-04-01 | 中国汽车工程研究院股份有限公司 | EMC performance test system under fuel cell system loading condition |
| CN114264959B (en) * | 2021-12-08 | 2023-09-26 | 中国汽车工程研究院股份有限公司 | EMC performance test system under loading working condition of fuel cell system |
| WO2023240928A1 (en) * | 2022-06-17 | 2023-12-21 | 深圳市通用测试系统有限公司 | Test system for vehicle-mounted antenna |
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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: 20100922 Termination date: 20131127 |