CN107966624A - A kind of simulating, verifying test device of shielded cable - Google Patents
A kind of simulating, verifying test device of shielded cable Download PDFInfo
- Publication number
- CN107966624A CN107966624A CN201711167308.5A CN201711167308A CN107966624A CN 107966624 A CN107966624 A CN 107966624A CN 201711167308 A CN201711167308 A CN 201711167308A CN 107966624 A CN107966624 A CN 107966624A
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- Prior art keywords
- test device
- shielded cable
- simulating
- main body
- verifying
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 239000000523 sample Substances 0.000 claims abstract description 22
- 238000004088 simulation Methods 0.000 abstract description 6
- 230000001939 inductive effect Effects 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to the technical field of test device, more particularly, to a kind of simulating, verifying test device of shielded cable.A kind of simulating, verifying test device of shielded cable, including test device main body, the shielded cable for being horizontally through test device main body, the test device main body is interior to be equipped with probe, and probe is connected at the receiver of test device body exterior.Save time and the cost that test and positioning solve the problems, such as, and the electromagnetic compatibility characteristic of effective lifting means, and the test device can provide a kind of effectively reliable means of testing in shielded cable simulating, verifying, be conducive to the constantly improve of simulation parameter and its simulation result is more approached the electromagnetic environment for actually using place, can increase me in electromagnetic compatibility business afterwards takes charge of technical advantage., can be in a manner of very directly perceived and effectively understand the mechanism and electromagnetic noise propagation that electromagnetic compatibility produces importantly, being used cooperatively by Emulation of EMC and test device.
Description
Technical field
The present invention relates to the technical field of test device, is tested more particularly, to a kind of simulating, verifying of shielded cable
Device.
Background technology
With the fast development of electronic technology, electronic equipment towards broadband, high integration direction develop while structure
Also even more complex is become.Many complication systems (such as automobile, guided missile, aircraft) have begun to transmit using substantial amounts of cable bundle
Signal, the EMC problems of cable bundle are more and more prominent.In order in the maximum Electro Magnetic Compatibility saved cost and ensure system under shortening
Can, it must just be emulated in crosstalk of the design phase to cable of product, radiation and the characteristic such as anti-interference, and the knot emulated
How fruit depends on the verification experimental verification of early period.
The content of the invention
The present invention is at least one defect overcome described in the above-mentioned prior art, there is provided a kind of simulating, verifying of shielded cable
Test device, can measure the actual signal of cable sensing in the case where isolating free surrounding space electromagnetic interference.
The technical scheme is that：A kind of simulating, verifying test device of shielded cable, wherein, including test device master
Body, the shielded cable for being horizontally through test device main body, the test device main body is interior to be equipped with probe, and probe is connected at survey
The receiver of body exterior is put in trial assembly.
With the continuous development of emulation technology now, how effectively shielded cable emulation and verification result to be combined
Come, shielded cable simulation result is bonded measured result, and measured result is able to verify that shielded cable emulates, key is that
We go to ensure the authenticity of test signal in actual test, but often more complicated there is various again for actual electromagnetic environment
The electromagnetic wave that various kinds type is enriched, and in order to ensure test loop will not be influenced truly to have so as to measure be subject to external electromagnetic ripple
The signal of effect, it is necessary to make a test device to realize.
In the present invention, interference source produce interference signal in certain distance by space be coupled respectively to shielded cable and
Test device outer surface, passes through the reflection of test device outer surface coupled to the interference signal of test device outer surface and is grounded
Complete attenuation, certain inductive signal can be produced coupled to the interference signal of shielded cable after shielding layer segment decay in cored wire；
The real frequency spectrum component of the inductive signal will be obtained by the monitoring probe built in test device.Then pop one's head in signal transmission
Into receiver.
Further, the test device body outer wall is equipped with radio frequency adapter, and the connection of radio frequency adapter one end is visited
Head, other end connection receiver.The characteristics of being disturbed due to the frequency content and amplitude little Yi of inductive signal complexity, according to frequency
The rate scope of application and shield effectiveness use radio frequency adapter to the interface of measurement cable and test device, to ensure that inductive signal is true
It is real detectable.
Further, it is equipped with the test device main body and is used to support probe and the supporting rack of shielded cable.Support
Frame includes probe fixing support rack and cable support frame, makes position, probe position test device in of the cable in probe
It is consistent in each test, to ensure the repdocutbility of test result and comparativity, supporter selects non-conductive low dielectric normal
Number material is to avoid influence test result.
Further, the supporting rack bottom is additionally provided with guide rail.Due to the frequency content and line of inductive signal complexity
The architectural characteristic of cable, the optimum value that may influence to measure every time are not same positions, so being visited using guide rail by mobile
Head can measure optimum value.
Further, the shielded cable at test device body contact with being equipped with interface.The interface is taper
Structure.Shielded cable shielded layer and the interface of test device are setting using pyramidal structure and at test device groove, can
The electric continuity of shielded layer and test device housing is set to reach optimal.
Further, this test device material selects the best red copper of electric conductivity in aluminium, iron, copper, is being tied for head cover
L-type or U-shaped structure are used at conjunction to ensure the maximum shield effectiveness to electromagnetic wave.
Compared with prior art, beneficial effect is：For the electromagnetic compatibility quickly grown in recent years in field of electromagnetic compatibility
Emulation, its in use can look-ahead Devices to test electromagnetic radiation and compatibility feature, the root of orientation problem and weigh each
The effect that kind of corrective measure improves overall Electro Magnetic Compatibility, can greatly save time that test and positioning solve the problems, such as with
Cost, and the effectively electromagnetic compatibility characteristic of lifting means, and the test device can provide one kind in shielded cable simulating, verifying
Effective reliable means of testing, is conducive to the constantly improve of simulation parameter and its simulation result is more approached actual use place
Electromagnetic environment, me can be increased in electromagnetic compatibility business afterwards and take charge of technical advantage.Importantly, imitated by electromagnetic compatibility
It is true and test device to be used cooperatively, can mechanism and electromagnetic noise biography very directly perceived and effectively understanding electromagnetic compatibility generation
The mode broadcast, so as to deepen the understanding and cognition to electromagnetic compatibility problem, is conducive to the work after us.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Embodiment
Attached drawing is only for illustration, it is impossible to is interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some components to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by attached drawing.Being given for example only property of position relationship described in attached drawing
Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in Figure 1, a kind of simulating, verifying test device of shielded cable, wherein, including test device main body 5, transverse direction
Through the shielded cable 1 of test device main body 5, probe 2 is equipped with test device main body 5, probe 2 is connected at test device master
Receiver 7 outside body 5.
In the present embodiment, with the continuous development of emulation technology now, how effectively shielded cable to be emulated and tested
Card result combines, and shielded cable simulation result is bonded measured result, and measured result is able to verify that shielded cable is imitated
Very, it is crucial to be that we go to ensure the authenticity of test signal in actual test, but actual electromagnetic environment often compares again
Complexity is there is the electromagnetic wave that various type is enriched, and in order to ensure test loop will not be influenced be subject to external electromagnetic ripple
So as to measure authentic and valid signal, it is necessary to make a test device to realize.
In Fig. 1, in the present embodiment, the interference signal that interference source produces is coupled respectively in certain distance by space
Shielded cable and test device outer surface, pass through the anti-of test device outer surface coupled to the interference signal of test device outer surface
Complete attenuation is penetrated and be grounded, can be produced necessarily in cored wire after shielding layer segment decay coupled to the interference signal of shielded cable
Inductive signal；The real frequency spectrum component of the inductive signal will be obtained by the monitoring probe 2 built in test device.Then pop one's head in
Signal transmission into receiver 7；3 represent cored wire, and 8 represent interference source.
Specifically, 5 outer wall of test device main body is equipped with radio frequency adapter 10,10 one end of radio frequency adapter connects probe 2,
The other end connects receiver 7.The characteristics of being disturbed due to the frequency content and amplitude little Yi of inductive signal complexity, according to frequency
The scope of application and shield effectiveness use radio frequency adapter 10 to the interface of measurement cable and test device, to ensure that inductive signal is true
It is real detectable.
It is equipped with test device main body 5 and is used to support probe and the supporting rack 4 of shielded cable.It is solid that supporting rack 4 includes probe
Determine supporting rack and cable support frame, make position of the cable in probe, position of the probe in test device in each test
Be consistent, to ensure the repdocutbility of test result and comparativity, supporter select non-conductive low-k material to avoid
Influence test result.
4 bottom of supporting rack is additionally provided with guide rail 9.Due to the frequency content of inductive signal complexity and the architectural characteristic of cable,
The optimum value that may influence to measure every time is not same position, so can be measured most by mobile probe using guide rail 9
Good value.
Shielded cable at test device body contact with being equipped with interface 6.Interface 6 is pyramidal structure.Shielded cable shielded layer
Using pyramidal structure and groove is being set at test device with the interface of test device, shielded layer and test device shell can be made
The electric continuity of body reaches optimal.
This test device material selects the best red copper of electric conductivity in aluminium, iron, copper, and L is used in junction for head cover
Type or U-shaped structure are to ensure the maximum shield effectiveness to electromagnetic wave.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (6)
1. the simulating, verifying test device of a kind of shielded cable, it is characterised in that including test device main body（5）, be horizontally through
Test device main body（5）Shielded cable（1）, the test device main body（5）It is interior to be equipped with probe（2）, probe（2）Connection is set
In test device main body（5）Exterior receiver（7）.
A kind of 2. simulating, verifying test device of shielded cable according to claim 1, it is characterised in that：The test
Apparatus main body（5）Outer wall is equipped with radio frequency adapter（10）, radio frequency adapter（10）One end connection probe（2）, other end connection
Receiver（7）.
A kind of 3. simulating, verifying test device of shielded cable according to claim 2, it is characterised in that：The test
Apparatus main body（5）Interior be equipped with is used to support probe and the supporting rack of shielded cable（4）.
A kind of 4. simulating, verifying test device of shielded cable according to claim 3, it is characterised in that：The support
Frame（4）Bottom is additionally provided with guide rail（9）.
A kind of 5. simulating, verifying test device of shielded cable according to any one of claims 1 to 4, it is characterised in that：Institute
The shielded cable stated（1）With test device main body（5）Contact position is equipped with interface（6）.
A kind of 6. simulating, verifying test device of shielded cable according to claim 5, it is characterised in that：The interface
（6）For pyramidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711167308.5A CN107966624A (en) | 2017-11-21 | 2017-11-21 | A kind of simulating, verifying test device of shielded cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711167308.5A CN107966624A (en) | 2017-11-21 | 2017-11-21 | A kind of simulating, verifying test device of shielded cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107966624A true CN107966624A (en) | 2018-04-27 |
Family
ID=61999762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711167308.5A Pending CN107966624A (en) | 2017-11-21 | 2017-11-21 | A kind of simulating, verifying test device of shielded cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107966624A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852138Y (en) * | 2005-06-22 | 2006-12-27 | 湖南科技大学 | Magnetic field probe for electromagnetism compatibility diagnosis testing |
| US7915898B1 (en) * | 2008-09-23 | 2011-03-29 | Rockwell Collins, Inc. | Integrated cable/connector shielding surveillance system |
| CN206584033U (en) * | 2017-02-27 | 2017-10-24 | 广州广电计量检测股份有限公司 | Bulk current injection test system check device |
| CN108089075A (en) * | 2017-11-21 | 2018-05-29 | 广电计量检测（西安）有限公司 | The simulating, verifying test device and its method of a kind of shielded cable |
| CN207516465U (en) * | 2017-11-21 | 2018-06-19 | 广电计量检测（西安）有限公司 | A kind of simulating, verifying test device of shielded cable |
-
2017
- 2017-11-21 CN CN201711167308.5A patent/CN107966624A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852138Y (en) * | 2005-06-22 | 2006-12-27 | 湖南科技大学 | Magnetic field probe for electromagnetism compatibility diagnosis testing |
| US7915898B1 (en) * | 2008-09-23 | 2011-03-29 | Rockwell Collins, Inc. | Integrated cable/connector shielding surveillance system |
| CN206584033U (en) * | 2017-02-27 | 2017-10-24 | 广州广电计量检测股份有限公司 | Bulk current injection test system check device |
| CN108089075A (en) * | 2017-11-21 | 2018-05-29 | 广电计量检测（西安）有限公司 | The simulating, verifying test device and its method of a kind of shielded cable |
| CN207516465U (en) * | 2017-11-21 | 2018-06-19 | 广电计量检测（西安）有限公司 | A kind of simulating, verifying test device of shielded cable |
Non-Patent Citations (3)
| Title |
|---|
| 吕致恒等: "电缆屏蔽效能自动测试系统", 《电子测量与仪器学报》, pages 417 - 422 * |
| 平碧波;宋文武;王春;: "舱室电源电缆对屏蔽双绞线线束的电磁干扰研究", 舰船电子工程, no. 08, pages 188 - 190 * |
| 马云双;闻映红;张丹;刘志刚;张金宝;: "动车组屏蔽线缆间串扰特性及其试验验证研究", 仪器仪表学报, no. 05, pages 1189 * |
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