CN102967772A - Two-dimension full automatic electromagnetic field distribution testing system - Google Patents
Two-dimension full automatic electromagnetic field distribution testing system Download PDFInfo
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- CN102967772A CN102967772A CN2012104492627A CN201210449262A CN102967772A CN 102967772 A CN102967772 A CN 102967772A CN 2012104492627 A CN2012104492627 A CN 2012104492627A CN 201210449262 A CN201210449262 A CN 201210449262A CN 102967772 A CN102967772 A CN 102967772A
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Abstract
The invention relates to a two-dimension full automatic electromagnetic field distribution testing system and belongs to the technical field of electromagnetic field experimental testing. The system comprises a two-dimension electric control translation platform, a vector network analyzer, a waveguide testing system and a control and data processing system, the waveguide testing system comprises a sending pole antenna, a receiving pole antenna, an upper metal plate, a lower metal plate, a wave absorbing material, a parallel waveguide testing cavity and a testing cavity opening device, and the parallel waveguide testing cavity is formed by the upper metal plate and the lower metal plate. The position of a receiving pole on the upper metal plate is changed so that the system can achieve electromagnetic field measurement of larger spacial ranges and large electromagnetic wave scanning frequencies; the moving of the receiving pole antenna in a vertical direction is controlled so that the measurement of electromagnetic fields with different heights can be achieved; and two sending modes of point sources and plane wave sources can be achieved, the electromagnetic fields in a parallel waveguide testing cavity can be rapidly, accurately and full automatically scanned and tested, and the two-dimension full automatic electromagnetic field distribution testing system has important application to the field of electromagnetic field experimental testing.
Description
Technical field
The present invention relates to a kind of two-dimentional fully automatic electric Distribution of Magnetic Field test macro, belong to electromagnetic field experiment test technical field.
Background technology
All the time, electromagnetics is limited by the development of electromagnetic field measuring technology to a great extent in the development aspect theory experiment and the practical application.For example in the research of the zero refracting characteristic that surpasses material, need to produce comparatively stable typical electrical Distribution of Magnetic Field, and comparatively accurately realize the measurement to amplitude in the field and phase angle.Can realize the test macro of such function, should have following characteristic: 1) can measure plane space in a big way.2) the receiving pole sub antenna can move in vertical direction, so that test result can reflect electromagnetic field variation in vertical direction.3) test macro can be realized several different typical electrical Distribution of Magnetic Field.4) test macro can be realized the robotization of higher degree in experiment test and Experiment Data Records process.
Have at present some both at home and abroad and can be used for the experiment test platform of electromagnetic field measurements, but its application still has certain limitation at present, because its test specification is less, and its receiving pole sub antenna does not have the freedom of motion of in the vertical direction, so that its extremely sub received energy is less, the test effect is relatively poor.Simultaneously, the upper metal plate of present existing test platform hoists and there is complex structure in bracing or strutting arrangement, the shortcomings such as operation inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of two-dimentional fully automatic electric Distribution of Magnetic Field test macro, can realize comparatively exactly the two-dimensional measurement in a big way external electromagnetic field, and have the advantages such as easy to use, higher stability and rapidity.
Technical scheme of the present invention is as follows:
A kind of two-dimentional fully automatic electric Distribution of Magnetic Field test macro comprises two-dimentional electronic control translation stage, vector network analyzer, waveguide test macro, control and data handling system and base plate; Described waveguide test macro comprises emitter sub antenna, receiving pole sub antenna, upper metal plate, lower metal plate, absorbing material, by two parallel waveguide test chamber and test chamber opening devices that metal plate consists of up and down; Described emitter sub antenna is installed on the lower metal plate, the receiving pole sub antenna is installed in the mounting hole of metal plate, the test chamber opening device links to each other with upper metal plate, and absorbing material is positioned at the upper surface of lower metal plate, and lower metal plate is installed on the two-dimentional electronic control translation stage; Emitter sub antenna and receiving pole sub antenna link to each other by the coaxial waveguide conversion line with vector network analyzer, it is characterized in that: described test macro also comprises receiving pole sub antenna arrangement for adjusting height, this regulating device comprises steering wheel and fork, have chute at fork, fork links to each other with the steering wheel output shaft, at the receiving pole sub antenna bearing pin is installed, bearing pin is installed in the chute; Be furnished with three receiving pole sub antenna mounting holes along directions X on upper metal plate, the receiving pole sub antenna is installed in one of them hole.
Technical characterictic of the present invention also is: described test chamber opening device comprises the quadruplet opener, the quadruplet opener is arranged symmetrically on the base plate, every cover comprises metal plate bracing frame, support bar and setting nut, support bar one end is hinged by upper metal plate hinge and upper metal plate, the other end is hinged by bracing frame hinge and upper metal plate bracing frame, adjusting nut is installed on the support bar, and upper metal plate bracing frame is fixed on the base plate; The two dimension electronic control translation stage comprises two guide rail, directions X screw nut driven mechanism and Y-direction screw nut driven mechanisms that are parallel to X-axis, wherein directions X screw nut driven mechanism comprises the X-direction stepper motor, directions X leading screw and directions X slide block, Y-direction screw nut driven mechanism comprises Y-direction stepper motor, Y-direction leading screw and Y-direction slide block; The first guide rail and the second guide rail parallel are installed on the base plate, the directions X slider frame is located on article one guide rail and the second guide rail, and form the lead screw transmission relation with the directions X leading screw, Y-direction slide block, Y-direction leading screw and Y-direction stepper motor are installed in the directions X slide block, and Y-direction slide block and Y-direction leading screw form the lead screw transmission relation.
The present invention compares with existing electromagnetic field measurements plateform system, has the following advantages and the high-lighting effect:
Because the present invention has adopted receiving pole sub antenna arrangement for adjusting height, can make the test received energy adjustable in a big way, thus the retrofit testing effect; Can realize in a big way electromagnetic field measurements in the position of upper metal plate by changing the receiving pole sub antenna; By the motion in the vertical direction of steering wheel control receiving pole, can realize that the energy that receiving pole receives is adjustable; Can realize two kinds of emission modes of point source and plane wave source, and accurate automatically scanning is tested the interior electromagnetic field of parallel waveguide test chamber fast.
Description of drawings
Fig. 1 is two-dimentional fully automatic electric Distribution of Magnetic Field test system structure principle schematic.
Fig. 2 is upper metal plate synoptic diagram.
Fig. 3 is receiving pole sub antenna arrangement for adjusting height schematic diagram of mechanism.
Fig. 4 is the structural representation that removes the two-dimentional electronic control translation stage behind the metal plate.
Test chamber opening device synoptic diagram when Fig. 5 is the test chamber closure.
Test chamber opening device synoptic diagram when Fig. 6 is the test chamber unlatching.
Fig. 7 is the enlarged drawing of bracing frame and support bar junction in the opener.
Fig. 8 is the point source type electromagnetic field distribution schematic diagram of realizing in the test zone.
Fig. 9 is the plane wave mode electromagnetic field distribution schematic diagram of realizing in the test zone.
Among the figure: 1-Y direction slide block; 2-X direction slide block; 3,4-guide rail; 5-Y is to the motion leading screw; 6-X is to the motion leading screw; The 7-mounting hole; The 8-steering wheel; 9-receiving pole sub antenna; The upper metal plate of 10-; 11-emitter sub antenna; The 12-absorbing material; 13-electromagnetic wave wave front; The upper metal plate bracing frame of 14-; Metal plate under the 15-; 16-Y is to stepper motor; The 17-coaxial cable; The 18-setting nut; The 19-support bar; The 20-vector network analyzer; 21-X is to stepper motor; 22-X is to alignment sensor; 23-Y is to alignment sensor; 24-two dimension electronic control translation stage; 25-parallel waveguide test chamber; 26-test chamber opening device; The 27-fork; The 28-bearing pin; The upper metal plate hinge of 29-; The 30-computing machine; 31-bracing frame hinge; The 32-base plate; The 40-controller.
Embodiment
Below in conjunction with accompanying drawing structure of the present invention, principle of work and the course of work are described further.
Fig. 1 is two-dimentional fully automatic electric Distribution of Magnetic Field test system structure principle schematic, comprises two-dimentional electronic control translation stage 24, vector network analyzer 20, waveguide test macro, control and data handling system and base plate 32; Described waveguide test macro comprises emitter sub antenna 11, receiving pole sub antenna 9, upper metal plate 10, lower metal plate 15, absorbing material 12, by two parallel waveguide test chamber 25 and test chamber opening devices 26 that metal plate consists of up and down; Described emitter sub antenna 11 is installed on the lower metal plate 15, receiving pole sub antenna 9 is installed in the mounting hole 7 of metal plate 10, test chamber opening device 26 links to each other with upper metal plate 10, absorbing material 12 is positioned at the upper surface of lower metal plate 15, and lower metal plate 15 is installed on the two-dimentional electronic control translation stage 24; Described control and data handling system comprise coaxial waveguide conversion line 17, vector network analyzer 20, computing machine 30, controller 40; Emitter sub antenna 11 and receiving pole sub antenna 9 link to each other with vector network analyzer 20 by coaxial waveguide conversion line 17, vector network analyzer 20 links to each other with computing machine 30 by netting twine, computing machine 30 links to each other with controller 40 by the USB line, and controller 40 links to each other with X-direction stepper motor 21 and Y-direction stepper motor 16 in the two-dimentional electronic control translation stage 24 by cable.When system works, at first send two-dimentional electronic control translation stage move by computing machine 30 to controller 40, controller 40 is delivered to X-direction stepper motor 21 and Y-direction stepper motor 16 in the two-dimentional electronic control translation stage 24 with instruction, makes the position that two-dimentional electronic control translation stage 24 moves to needs test.Computing machine 30 sends test instruction to vector network analyzer 20 subsequently, the electromagnetic signal that vector network analyzer 20 namely will need to send by coaxial waveguide conversion line 17 is transported to emitter sub antenna 11 and launches, behind the electromagnetic signal process parallel waveguide test chamber of emission, received by receiving pole sub antenna 9, be transmitted back to vector network analyzer 20 by coaxial waveguide conversion line 17 subsequently, vector network analyzer 20 flows to computing machine 30 with the signal that receives, and has namely finished the test of a point.Computing machine 30 sends two-dimentional electronic control translation stage move to controller 40 again subsequently, carries out the test of next position.
Fig. 2 is upper metal plate synoptic diagram.Upper metal plate 10 is supported by test chamber opening device 26.Test chamber opening device 26 comprises the quadruplet opener, the quadruplet opener is arranged symmetrically on the base plate 32, every cover comprises metal plate bracing frame 14, support bar 19 and setting nut 18, support bar 19 1 ends are hinged by upper metal plate hinge 29 and upper metal plate 10, the other end is hinged by bracing frame hinge 31 and upper metal plate bracing frame 14, adjusting nut 18 is installed on the support bar 19, and upper metal plate bracing frame 14 is fixed on the base plate 32.Be furnished with three receiving pole sub antenna mounting holes 7 along directions X on upper metal plate 10, the receiving pole sub antenna is installed in one of them hole.Receiving pole is installed in the different pilot holes, can realizes the function of enlarge measurement range.
Fig. 3 is receiving pole sub antenna arrangement for adjusting height schematic diagram of mechanism.This regulating device comprises steering wheel 8 and fork 2, have chute at fork 27, fork 27 links to each other with steering wheel 8 output shafts, at receiving pole sub antenna 9 bearing pin 28 is installed, bearing pin 28 is installed in the chute, and receiving pole sub antenna 9 is installed in the mounting hole 7 on the metal plate 10.During the output shaft rotation of steering wheel 8, drive fork 2 and rotate, fork 2 drives receiving pole sub antennas 9 and carries out the motion of vertical direction, the rotation of steering wheel has been become the movement in vertical direction of receiving pole.The anglec of rotation by the control steering wheel can be controlled the displacement that receiving pole moves in vertical direction, thus the height of control receiving pole.
Fig. 4 is the motion sketch that removes the two-dimentional electronic control translation stage behind the metal plate.The two dimension electronic control translation stage comprises two guide rails that are parallel to X-axis, and directions X screw nut driven mechanism and Y-direction screw nut driven mechanism, wherein directions X screw nut driven mechanism comprises X-direction stepper motor 21, directions X leading screw (6) and directions X slide block 2, and Y-direction screw nut driven mechanism comprises Y-direction stepper motor 16, Y-direction leading screw 5 and Y-direction slide block 1; The first guide rail 3 and the second guide rail 4 are installed in parallel on the base plate 32, directions X slide block 2 is erected on article one guide rail 3 and the second guide rail 4, and form lead screw transmission with directions X leading screw 6, Y-direction slide block 1, Y-direction leading screw 5 and Y-direction stepper motor 16 are installed in the directions X slide block 2, and Y-direction slide block 1 forms lead screw transmission with Y-direction leading screw 5.When directions X leading screw 6 passed through X-direction stepper motor 21 driven rotary, directions X slide block 2 can move at directions X; Y-direction leading screw 5 is fixed on the directions X slide block 2, and forms lead screw transmission with Y-direction slide block 1, and when Y-direction stepper motor 16 rotarily drove 5 rotation of Y-direction leading screw, Y-direction slide block 1 can move in Y-direction; Two motions by Y-direction and directions X synthetic, the random two-dimensional that slide block 1 can be implemented on XY the plane in moves.
Test chamber opening device synoptic diagram when the test chamber opening device synoptic diagram when Fig. 5 is the test chamber closure, Fig. 6 are the test chamber unlatching, Fig. 7 is the enlarged drawing of bracing frame hinge fraction.Test chamber opening device 26 comprises the quadruplet opener, the quadruplet opener is arranged symmetrically on the base plate 32, every cover comprises metal plate bracing frame 14, support bar 19 and setting nut 18, support bar 19 1 ends are hinged by upper metal plate hinge 29 and upper metal plate 10, the other end is hinged by bracing frame hinge 31 and upper metal plate bracing frame 14, adjusting nut 18 is installed on the support bar 19, and upper metal plate bracing frame 14 is fixed on the base plate 32.When needs were opened test chamber, metal plate 10 in the promotion, and support bar 19 rotations are so that upper metal plate 10 rises, and such as Fig. 6, metal plate 10 can support by leaning against on the bracing frame 14 on this moment.By setting nut 18, can regulate the up and down spacing between the metal plate, thus height and the depth of parallelism of regulating parallel waveguide.
Fig. 8 is the point source type electromagnetic field distribution schematic diagram of realizing in the test zone, and Fig. 9 is the plane wave mode electromagnetic field distribution schematic diagram of realizing in the test zone.Native system can form by the placement of extremely sub diverse location and absorbing material two kinds of typical electromagnetic fields and distribute: the one, emitter 11 is placed lower metal plate test zone center, absorbing material 12 is complete circumference and places, electromagnetic wave will form circular wavefront from the center outgoing, can form the power-type electromagnetic field and distribute, as shown in Figure 8; The 2nd, emitter is placed in the waveguide, make its segment distance of in waveguide, advancing first, enter in the border circular areas subsequently.Because the effect of waveguide so that electromagnetic wave no longer is circular wave front, and formed the parallel wave front from the outgoing of waveguide mouth the time, thereby having formed plane wave mode electromagnetic field distributes, as shown in Figure 9.These two kinds of typical electromagnetic fields have more application when being distributed in experiment test.
Claims (3)
1. a two-dimentional fully automatic electric Distribution of Magnetic Field test macro comprises two-dimentional electronic control translation stage (24), vector network analyzer (20), waveguide test macro, control and data handling system and base plate (32); Described waveguide test macro comprises emitter sub antenna (11), receiving pole sub antenna (9), upper metal plate (10), lower metal plate (15), absorbing material (12), by two parallel waveguide test chamber (25) and test chamber opening devices (26) that metal plate consists of up and down; Described emitter sub antenna (11) is installed on the lower metal plate (15), receiving pole sub antenna (9) is installed in the mounting hole (7) of metal plate (10), test chamber opening device (26) links to each other with upper metal plate (10), absorbing material (12) is positioned at the upper surface of lower metal plate (15), and lower metal plate (15) is installed on the two-dimentional electronic control translation stage (24); Emitter sub antenna (11) and receiving pole sub antenna (9) link to each other by coaxial waveguide conversion line (17) with vector network analyzer (20), it is characterized in that: described test macro also comprises receiving pole sub antenna arrangement for adjusting height, this regulating device comprises steering wheel (8) and fork (27), have chute at fork (27), fork (27) links to each other with steering wheel (8) output shaft; At the receiving pole sub antenna bearing pin (28) is installed, bearing pin (28) is installed in the described chute; Upward be furnished with three receiving pole sub antenna mounting holes (7) along directions X at upper metal plate (10), receiving pole sub antenna (9) is installed in one of them hole.
2. two-dimentional fully automatic electric Distribution of Magnetic Field test macro according to claim 1, it is characterized in that: described test chamber opening device (26) comprises the quadruplet opener, the quadruplet opener is arranged symmetrically on the base plate (32), every cover comprises metal plate bracing frame (14), support bar (19) and setting nut (18), support bar (19) one ends are hinged by upper metal plate hinge (29) and upper metal plate (10), the other end is hinged by bracing frame hinge (31) and upper metal plate bracing frame (14), adjusting nut (18) is installed on the support bar (19), and upper metal plate bracing frame (14) is fixed on the base plate (32).
3. two-dimentional fully automatic electric Distribution of Magnetic Field test macro according to claim 1 and 2, it is characterized in that: described two-dimentional electronic control translation stage comprises two guide rail, directions X screw nut driven mechanism and the Y-direction screw nut driven mechanisms that are parallel to X-axis, wherein directions X screw nut driven mechanism comprises X-direction stepper motor (21), directions X leading screw (6) and directions X slide block (2), and Y-direction screw nut driven mechanism comprises Y-direction stepper motor (16), Y-direction leading screw (5) and Y-direction slide block (1); Article two, the first guide rail (3) and the second guide rail (4) that are parallel to X-axis are installed in parallel on the base plate (32), described directions X slide block (2) is erected on article one guide rail (3) and the second guide rail (4), and form the lead screw transmission relation with directions X leading screw (6), Y-direction slide block (1), Y-direction leading screw (5) and Y-direction stepper motor (16) are installed in the directions X slide block (2), and Y-direction slide block (1) forms the lead screw transmission relation with Y-direction leading screw (5).
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| CN201210449262.7A CN102967772B (en) | 2012-11-09 | 2012-11-09 | Two-dimension full automatic electromagnetic field distribution testing system |
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| CN201210449262.7A CN102967772B (en) | 2012-11-09 | 2012-11-09 | Two-dimension full automatic electromagnetic field distribution testing system |
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| CN104215918A (en) * | 2014-09-25 | 2014-12-17 | 中国工程物理研究院流体物理研究所 | Chamber two-dimensional distribution measuring device |
| CN104459347A (en) * | 2014-11-24 | 2015-03-25 | 成都盛军电子设备有限公司 | Device making it convenient for electromagnetic environment monitoring equipment to perform monitoring |
| CN108872268A (en) * | 2018-07-06 | 2018-11-23 | 深圳凌波近场科技有限公司 | Parallel flat waveguide measuring device and method |
| CN108872269A (en) * | 2018-07-06 | 2018-11-23 | 深圳凌波近场科技有限公司 | Near field electromagnetic wave measuring system and multifunctional near-field electromagnetic wave measurement method |
| CN109342829A (en) * | 2018-10-08 | 2019-02-15 | 中国人民解放军国防科技大学 | Equivalent simulation method for motion characteristics of electromagnetic radiation source |
| CN110058090A (en) * | 2019-06-05 | 2019-07-26 | 衢州代宇商务咨询有限公司 | A kind of detection device for reducing electromagnetic radiation and electromagnetic radiation being detected |
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| CN108872269A (en) * | 2018-07-06 | 2018-11-23 | 深圳凌波近场科技有限公司 | Near field electromagnetic wave measuring system and multifunctional near-field electromagnetic wave measurement method |
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| CN109342829B (en) * | 2018-10-08 | 2020-10-30 | 中国人民解放军国防科技大学 | Equivalent simulation method for motion characteristics of electromagnetic radiation source |
| CN110058090A (en) * | 2019-06-05 | 2019-07-26 | 衢州代宇商务咨询有限公司 | A kind of detection device for reducing electromagnetic radiation and electromagnetic radiation being detected |
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