CN102955049A - Testing jig with field uniformity function - Google Patents
Testing jig with field uniformity function Download PDFInfo
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- CN102955049A CN102955049A CN201210456015XA CN201210456015A CN102955049A CN 102955049 A CN102955049 A CN 102955049A CN 201210456015X A CN201210456015X A CN 201210456015XA CN 201210456015 A CN201210456015 A CN 201210456015A CN 102955049 A CN102955049 A CN 102955049A
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Abstract
The invention relates to the technical field of electromagnetic compatibility experimentation, in particular to a testing jig with a field uniformity function. The testing jig with the field uniformity function comprises a plurality of horizontal connection structures and a plurality of vertical connection structures, support rods and vertical rods are connected through the vertical connection structures in the vertical direction, the vertical rods are connected through the vertical connection structures, and the vertical rods and the support rods are positioned on the same straight line; horizontal rods are connected through the horizontal connection structures, one ends of connecting rods are connected with the horizontal connection structures, the other ends of the connecting rods are connected with the vertical connection structures, and the connecting rods and the horizontal rods are positioned on the same straight line; and the connecting rods are perpendicular to the vertical rods, and the horizontal connection structures are all provided with field intensity probes used for measurement. The testing jig is disassembled into a plurality of parts to facilitate carrying, and the parts are assembled to form an integral body which is in surface form, the testing jig does not need to be moved in a testing process, the testing requirement can be satisfied precisely, and at the same time the testing time is saved.
Description
Technical field
The present invention relates to the EMC test technical field, be specifically related to have the testing jig of field uniformity function.
Background technology
Electromagnetic compatibility refers to that equipment or system can work and other things in this environment is not consisted of the ability of the electromagnetic disturbance that can not bear in its electromagnetic environment.Electromagnetic Compatibility comprises the requirement of two aspects: refer to that on the one hand equipment can not surpass certain limit value to the electromagnetic interference (EMI) that the place environment produces in normal course of operation; Refer to that on the other hand utensil has to a certain degree immunity to interference, i.e. electromagnetic susceptibility to the electromagnetic interference (EMI) that exists in the environment of place.
Stipulated the requirement of 16 field uniformity verifications among the electromagnetic compatibility standard IEC61000-4-3 of International Electrotechnical Commission: under the electromagnetic wave incident condition of certain power, on 12 location points in space plane shown in Figure 1 in equally distributed 16 location points, the field intensity that any two positions point adopts the field intensity probe to record is poor should be less than 6 decibels.
Such as the disclosed radiation field homogeneity verification of Chinese patent (application publication number CN102608558A) locating device, its electric field probe can be in level and vertical two-dimensional directional up conversion position, after when first the measurement, carrying out the demarcation of radiation field homogeneity verification key position point, in follow-up test, by electric field probe is changed at the enterprising line position of two-dimensional directional, finish the positioning action of other a plurality of location points of radiation field homogeneity verification.And the 70th section and the 73rd section in its instructions is to finish the test of 16 location points by rotation and the endwisely slipping of waling stripe of waling stripe, but such mode error may occur in the evolution process of waling stripe, cause the test result of electric field probe accurate not, and its test formation is a point or a line, both time-consuming can not reach the distance between each position in the test simultaneously accurately.
Summary of the invention
The technical matters that the present invention solves provides the testing jig with field uniformity function, its testing jig splits into several parts, be easy to carry, form an integral body after the assembling, formation is a face, testing jig need not move again in the test process, can finish accurately test request, saves the test duration simultaneously.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the testing jig with field uniformity function, wherein, comprise: a plurality of cross bars, a plurality of connecting link, a plurality of support bar, a plurality of montant, a plurality of transverse connection structure and a plurality of vertical connection structure, the vertical direction upper support bar is connected by vertical connection structure with montant, montant is connected by vertical connection structure with montant, and montant and support bar are located along the same line; Cross bar is connected by transverse connection structure with cross bar, and connecting link one end connects transverse connection structure, and the other end connects vertical connection structure, and connecting link and cross bar are located along the same line; Described connecting link is equipped with on described a plurality of transverse connection structures for the field intensity probe of measuring perpendicular to montant.
Further, described transverse connection structure comprises transverse connection structure the first port, transverse connection structure the second port and transverse connection structure the 3rd port, described transverse connection structure the first port is connected with cross bar or connecting link, and transverse connection structure the second port is connected with cross bar or connecting link; The field intensity probe is set on transverse connection structure the 3rd port.3 ports by transverse connection structure can with connecting link and cross bar reliable and stable be connected to an integral body.Described vertical connection structure comprises vertical connection structure the first port, vertical connection structure the second port and vertical connection structure the 3rd port, vertical connection structure the first port connects support bar or montant, vertical connection structure the second port connects connecting link, and vertical connection structure the 3rd port connects montant or vacant.3 ports by vertical connection structure can with support bar, montant and connecting link reliable and stable be connected to an integral body.Vertical connection structure cooperates with transverse connection structure, so that testing jig forms a similar netted structure, testing jig need not move again in the test process, can finish accurately test request, saves the test duration simultaneously.
Further, described field intensity probe bottom is provided with base, and base inserts in transverse connection structure the 3rd port, and the field intensity probe is fixed on the transverse connection structure.Described base is cylindrical, base diameter≤30mm.Mostly there is a columniform base existing field intensity probe bottom or base is not set, transverse connection structure the 3rd port position is hollow, the field intensity probe puts in and can just keep the field intensity probe to be in horizontality, the base of field intensity probe varies, but diameter 30mm can place the field intensity probe of most of model, so the hollow diameter 30mm of transverse connection structure the 3rd port position can place different field intensity probes.
Further, the number of described support bar is 2, and vertically is symmetricly set in the testing jig two ends, and its length is 800mm.Support bar can be so that whole firm being fixed on the ground of testing jig, and its length dimension is moderate, easy installation and removal.
Further, the number of described montant is 6, vertically is symmetricly set in the testing jig two ends, 3 at every end, and its length is 500mm; Described vertical connection structure number is 8.The every row of described transverse connection structure is provided with 4, and testing jig is provided with 4 parallel side by side row, totally 16 transverse connection structures; Described cross bar length is 500mm.
Concrete, the test point of 16 test point standard codes, after 16 some calibrations are finished, data analysis to these 16 points, i.e. 12 points of 75%(are arranged in these 16 points) the range of tolerable variance of reading at 0dB-+6dB in, prove that then this is uniform, namely meet test request, in the situation of frequency range less than 1GHZ, this device can satisfy 16 points or less than the alignment requirements of 16 points, greater than 1GHZ, what it adopted is independent window method calibrating mode, is exactly that the tolerance of 4 points is in the 0dB-+6dB scope for frequency range, the zone that these 4 points form is called window, 16 points form 9 windows, all will calibrate the window that product can cover, and this device also can satisfy this alignment requirements.
Further, described connecting link length is 100mm.To be that 100mm is convenient connect length, and consistent with the test surfaces of test products for the even territory that guarantees to calibrate, so best with identical length, the while allows testing jig volume minimum guaranteeing normally to finish in the situation of calibration, so adopted 100mm.
Further, the port of described transverse connection structure and vertical connection structure is equipped with internal thread, and the end of described cross bar, connecting link, support bar, montant is equipped with external thread, and syndeton is fixedly connected with by screw thread with bar.The mode that is threaded is simple and convenient, and testing jig may be split into several parts, is easy to carry, and forms an integral body after the assembling.
Install testing jig, the field intensity probe is placed on one by one test on each aspect on the testing jig, until 16 some tests are finished, disposable 16 points will testing of testing jig after installing are all fixed, so just can the very accurate requirement that reaches test, can not cause experimental error bigger than normal because of mobile test frame and measuring error.
Compared with prior art, beneficial effect is: cross bar of the present invention is connected by transverse connection structure with cross bar, and connecting link one end connects transverse connection structure, and the other end connects vertical connection structure, and connecting link and cross bar are located along the same line; Described connecting link is equipped with on described a plurality of transverse connection structures for the field intensity probe of measuring perpendicular to montant.It forms an integral body, and formation is a face, and testing jig need not move again in the test process, can finish accurately test request, saves the test duration simultaneously.
Description of drawings
Fig. 1 is the field homogeneous area synoptic diagram of ICE61000-4-3 definition;
Fig. 2 is one-piece construction synoptic diagram of the present invention;
Fig. 3 is vertical connection structure synoptic diagram of the present invention;
Fig. 4 is transverse connection structure synoptic diagram of the present invention;
Fig. 5 is integrated testability area schematic of the present invention.
Embodiment
Shown in Fig. 2-4, testing jig with field uniformity function, wherein, comprise: a plurality of cross bars 1, a plurality of connecting link 2, a plurality of support bar 3, a plurality of montant 4, a plurality of transverse connection structure 5 and a plurality of vertical connection structure 6, vertical direction upper support bar 3 is connected by vertical connection structure 6 with montant 4, montant 4 is connected by vertical connection structure 6 with montant 4, and montant 4 is located along the same line with support bar 3; Cross bar 1 is connected by transverse connection structure 5 with cross bar 1, and connecting link 2 one ends connect transverse connection structure 5, and the other end connects vertical connection structure 6, and connecting link 2 is located along the same line with cross bar 1; Described connecting link 2 is equipped with on described a plurality of transverse connection structures 5 for the field intensity probe of measuring perpendicular to montant 4.
Further, described transverse connection structure 5 comprises transverse connection structure the first port 51, transverse connection structure the second port 52 and transverse connection structure the 3rd port 53, described transverse connection structure the first port 51 is connected with cross bar 1 or connecting link 2, and transverse connection structure the second port 52 is connected with cross bar 1 or connecting link 2; The field intensity probe is set on transverse connection structure the 3rd port 53.Described vertical connection structure 6 comprises vertical connection structure the first port 61, vertical connection structure the second port 62 and vertical connection structure the 3rd port 63, vertical connection structure the first port 61 connects support bar 3 or montant 4, vertical connection structure the second port 62 connects connecting link 2, and vertical connection structure the 3rd port 63 connects montant 4 or vacant.Vertical connection structure 6 cooperates with transverse connection structure 5, so that testing jig forms a similar netted structure, testing jig need not move again in the test process, can finish accurately test request, saves the test duration simultaneously.
Further, described field intensity probe bottom is provided with base, and base inserts in transverse connection structure the 3rd port 53, and the field intensity probe is fixed on the transverse connection structure 5.Described base is cylindrical, base diameter≤30mm.Transverse connection structure the 3rd port 53 positions are hollow, the field intensity probe puts in and can just keep the field intensity probe to be in horizontality, the base of field intensity probe varies, but diameter 30mm can place the field intensity probe of most of model, so the hollow diameter 30mm of transverse connection structure the 3rd port position can place different field intensity probes.
Further, the number of described support bar 3 is 2, and vertically is symmetricly set in the testing jig two ends, and its length is 800mm.Support bar 3 can be so that whole firm being fixed on the ground of testing jig, and its length dimension is moderate, easy installation and removal.
Further, the number of described montant 4 is 6, vertically is symmetricly set in the testing jig two ends, 3 at every end, and its length is 500mm; Described vertical connection structure 6 numbers are 8.Described transverse connection structure 5 every rows are provided with 4, and testing jig is provided with 4 parallel side by side row, totally 16 transverse connection structures 5; Described cross bar 1 length is 500mm.Described connecting link length is 100mm.To be that 100mm is convenient connect length, and consistent with the test surfaces of test products for the even territory that guarantees to calibrate, so best with identical length, the while allows testing jig volume minimum guaranteeing normally to finish in the situation of calibration, so adopted 100mm.
The port of described transverse connection structure 5 and vertical connection structure 6 is equipped with internal thread, and the end of described cross bar 1, connecting link 2, support bar 3, montant 4 is equipped with external thread, and syndeton is fixedly connected with by screw thread with bar.The mode that is threaded is simple and convenient, and testing jig may be split into several parts, is easy to carry, and forms an integral body after the assembling.
As shown in Figure 5, a represents an emitting antenna, b represents absorbing material, be used for semi-anechoic chamber and reduce ground return, c represents optical fiber or through the signal connecting line of filtering, d represents originally to have the testing jig of field uniformity function, testing jig and optical fiber or be connected through the signal connecting line of filtering, testing jig is 3m with the distance of an emitting antenna, and the bottom surface, even territory that testing jig forms is apart from ground 0.8m.
Install testing jig, the field intensity probe is placed on one by one test on each aspect on the testing jig, until 16 some tests are finished, disposable 16 points will testing of testing jig after installing are all fixed, so just can the very accurate requirement that reaches test, can not cause experimental error bigger than normal because of mobile test frame and measuring error.Guaranteed that the distance between 16 points meets the requirements of the standard.
The above only is preferred implementation of the present invention, should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can do the improvement of some suitable actual conditions to the technical scheme of invention.Therefore, protection scope of the present invention is not limited to this, and those of skill in the art are any to be included within protection domain of the present invention based on non-material change on the technical solution of the present invention.
Claims (10)
1. the testing jig that has the field uniformity function, it is characterized in that, comprise: a plurality of cross bars (1), a plurality of connecting link (2), a plurality of support bar (3), a plurality of montant (4), a plurality of transverse connection structure (5) and a plurality of vertical connection structure (6), vertical direction upper support bar (3) is connected by vertical connection structure (6) with montant (4), montant (4) is connected by vertical connection structure (6) with montant (4), and montant (4) is located along the same line with support bar (3); Cross bar (1) is connected by transverse connection structure (5) with cross bar (1), and connecting link (2) one ends connect transverse connection structure (5), and the other end connects vertical connection structure (6), and connecting link (2) is located along the same line with cross bar (1); Described connecting link (2) is equipped with on described a plurality of transverse connection structures (5) for the field intensity probe of measuring perpendicular to montant (4).
2. the testing jig with field uniformity function according to claim 1, it is characterized in that: described transverse connection structure (5) comprises transverse connection structure the first port (51), transverse connection structure the second port (52) and transverse connection structure the 3rd port (53), described transverse connection structure the first port (51) is connected with cross bar (1) or connecting link (2), and transverse connection structure the second port (52) is connected with cross bar (1) or connecting link (2); The field intensity probe is set on transverse connection structure the 3rd port (53).
3. the testing jig with field uniformity function according to claim 2 is characterized in that: described field intensity probe bottom is provided with base, and base inserts in transverse connection structure the 3rd port (53), and the field intensity probe is fixed on the transverse connection structure (5).
4. the testing jig with field uniformity function according to claim 3, it is characterized in that: described base is cylindrical, base diameter≤30mm.
5. the testing jig with field uniformity function according to claim 1, it is characterized in that: described vertical connection structure (6) comprises vertical connection structure the first port (61), vertical connection structure the second port (62) and vertical connection structure the 3rd port (63), vertical connection structure the first port (61) connects support bar (3) or montant (4), vertical connection structure the second port (62) connects connecting link (2), and vertical connection structure the 3rd port (63) connects montant (4) or vacant.
6. the testing jig with field uniformity function according to claim 1, it is characterized in that: the number of described support bar (3) is 2, and vertically is symmetricly set in the testing jig two ends, its length is 800mm.
7. the testing jig with field uniformity function according to claim 1, it is characterized in that: the number of described montant (4) is 6, vertically is symmetricly set in the testing jig two ends, 3 at every end, its length is 500mm; Described vertical connection structure (6) number is 8.
8. the testing jig with field uniformity function according to claim 1, it is characterized in that: the every row of described transverse connection structure (5) is provided with 4, and testing jig is provided with 4 parallel side by side row, totally 16 transverse connection structures (5); Described cross bar (1) length is 500mm.
9. the testing jig with field uniformity function according to claim 1, it is characterized in that: described connecting link (2) length is 100mm.
10. arbitrary described testing jig with field uniformity function according to claim 1-9, it is characterized in that: the port of described transverse connection structure (5) and vertical connection structure (6) is equipped with internal thread, the end of described cross bar (1), connecting link (2), support bar (3), montant (4) is equipped with external thread, and syndeton is fixedly connected with by screw thread with bar.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210456015.XA CN102955049B (en) | 2012-11-14 | 2012-11-14 | Testing jig with field uniformity function |
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| CN201210456015.XA CN102955049B (en) | 2012-11-14 | 2012-11-14 | Testing jig with field uniformity function |
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| CN102955049B CN102955049B (en) | 2014-09-03 |
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| CN108761221A (en) * | 2018-08-02 | 2018-11-06 | 长虹美菱股份有限公司 | A kind of test system and method for measuring space electrical field |
| CN109655695A (en) * | 2019-01-28 | 2019-04-19 | 深圳天祥质量技术服务有限公司 | The anti-interference window test device of high-intensitive high frequency radiation and technique |
| CN111551794A (en) * | 2020-06-11 | 2020-08-18 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Simple field uniformity testing device and testing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108761221A (en) * | 2018-08-02 | 2018-11-06 | 长虹美菱股份有限公司 | A kind of test system and method for measuring space electrical field |
| CN109655695A (en) * | 2019-01-28 | 2019-04-19 | 深圳天祥质量技术服务有限公司 | The anti-interference window test device of high-intensitive high frequency radiation and technique |
| CN111551794A (en) * | 2020-06-11 | 2020-08-18 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Simple field uniformity testing device and testing method thereof |
| CN111551794B (en) * | 2020-06-11 | 2022-06-28 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Simple field uniformity testing device and testing method thereof |
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Address after: 511400 150, No. 8, Qishan Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Radio and TV Measurement and Testing Group Co.,Ltd. Address before: 510656 Guangdong city of Guangzhou province Whampoa Avenue Tianhe District Xiping Yun Road No. 163 Patentee before: GUANGZHOU GRG METROLOGY & TEST Co.,Ltd. |
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