CN110133327B - Linear compact range feed source automatic switching system and feed source switching method - Google Patents
Linear compact range feed source automatic switching system and feed source switching method Download PDFInfo
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- CN110133327B CN110133327B CN201910253922.6A CN201910253922A CN110133327B CN 110133327 B CN110133327 B CN 110133327B CN 201910253922 A CN201910253922 A CN 201910253922A CN 110133327 B CN110133327 B CN 110133327B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
Abstract
The invention relates to a linear compact range feed source automatic switching system, which is arranged on one side of a row of wave-absorbing materials, wherein holes are reserved in the wave-absorbing materials, and the linear compact range feed source automatic switching system comprises: the feed source loudspeaker comprises a rack, a bottom plate, a support, a feed source loudspeaker and a linear driving mechanism; the bottom plate is assembled on the rack in a sliding mode, the sliding direction of the bottom plate is parallel to the wave-absorbing material, the plurality of brackets are arranged on the bottom plate at intervals, and the frequency range of the feed source horn on different brackets is different; the linear driving mechanism drives the bottom plate to slide so that the feed source horn is aligned with the hole. The invention has the effects of automatically replacing the feed source and indirectly enabling the testing efficiency to be higher.
Description
Technical Field
The invention relates to the technical field of compact range testing, in particular to a linear compact range feed source automatic switching system and a feed source switching method.
Background
For example, the patent publication number CN107884629A discloses an antenna-fed compact range device. The compact field is a testing device which changes spherical waves emitted by a feed source into plane waves by a smooth reflecting surface (a single reflecting surface or double reflecting surfaces) in a short distance.
The frequency range of the feed source determines the frequency range of a compact range system to a certain extent, the test frequency of the compact range system is wide (the frequency range of the compact range is 2GHz-200GHz generally), and the frequency range of a single feed source is narrow (the frequency range is 18GHz-27GHz generally). In order to realize the test of wider frequency band, the existing compact range test can provide a set of feed sources with different frequency bands, thereby realizing the coverage of full frequency band.
The above prior art solutions have the following drawbacks: when the test frequency band is changed, a tester needs to enter a darkroom to manually change the feed source, and the feed sources with different frequency bands are frequently assembled and disassembled manually, so that the test efficiency is influenced, and the changing process is complex, so that the improvement is needed.
Disclosure of Invention
The invention aims to provide a linear compact range feed source automatic switching system which has the advantages of automatically replacing a feed source and indirectly improving the testing efficiency.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a linear type compact range feed source automatic switching system, is located one side of a row of absorbing material and arranges, absorbing material reserves the hole, include: the feed source loudspeaker comprises a rack, a bottom plate, a support, a feed source loudspeaker and a linear driving mechanism;
the bottom plate is assembled on the rack in a sliding mode, the sliding direction of the bottom plate is parallel to the wave-absorbing material, the plurality of brackets are arranged on the bottom plate at intervals, and the frequency range of the feed source horn on different brackets is different;
the linear driving mechanism drives the bottom plate to slide so that the feed source horn is aligned with the hole.
The invention is further configured to further include: the feed source loudspeaker pass through flexible actuating mechanism install in on the support, flexible actuating mechanism is used for ordering about feed source loudspeaker stretches into in the hole.
By adopting the technical scheme, a plurality of feed source loudspeakers with different frequency range ranges are integrally installed on the same bottom plate, the bottom plate is driven by the linear driving mechanism to drive the feed source loudspeakers to move so as to adjust the positions of the feed source loudspeakers relative to the holes, and the wave-absorbing material can shield signal interference of other feed source loudspeakers (feed source loudspeakers without corresponding holes) and indirectly improve the test accuracy; need with when trading feed loudspeaker, start flexible actuating mechanism, it withdraws from absorbing material's hole to drive original feed loudspeaker, restart linear drive mechanism, order about the bottom plate and drive all supports and slide, aim at absorbing material's hole until new feed loudspeaker, then stop linear drive mechanism, restart flexible actuating mechanism at last, drive new feed loudspeaker and stretch into absorbing material's hole in, the feed can be changed by the automation to this system, need not the various complicated operation of manual execution, change efficiency is higher, indirectly promoted efficiency of software testing.
The invention is further arranged such that the linear drive mechanism comprises: the device comprises a horizontal guide rail, a horizontal screw rod, a horizontal sliding block and a stepping motor;
the horizontal guide rail is provided with two horizontal guide rails which are arranged on the rack in parallel, the bottom plate is assembled with the horizontal guide rails in a sliding mode, two ends of the horizontal screw rod are assembled on the rack in a rotating mode, the horizontal screw rod is located between the two horizontal guide rails and parallel to the horizontal guide rails, the horizontal sliding block is assembled with the horizontal screw rod in a threaded transmission mode, the horizontal sliding block is fixedly assembled with the bottom plate, and the stepping motor is installed on the rack and an output shaft of the stepping motor drives the horizontal screw rod to rotate.
Through adopting above-mentioned technical scheme, when step motor worked its output shaft and just reversing, can drive horizontal lead screw and just reverse to drive horizontal slider, bottom plate along horizontal guide rail reciprocating motion, the bottom plate slides comparatively steadily moreover, this linear drive mechanism stable in structure adjusts convenient operation.
The feed source loudspeaker is further arranged to be driven by a telescopic rod of the cylinder or the oil cylinder so as to achieve the telescopic purpose.
Through adopting above-mentioned technical scheme, cylinder or hydro-cylinder have the advantage of purchase convenience, with low costs, assemble moreover. The maintenance is simpler, and the control is more convenient simultaneously.
The feed source loudspeaker comprises a support, a telescopic driving mechanism and a feed source loudspeaker, wherein the support is provided with an arc-shaped sliding groove and an adjusting seat, the end part of the telescopic driving mechanism is arranged on the adjusting seat, two sides of the adjusting seat are provided with first bulges which slide in the arc-shaped sliding groove, the support is also provided with a pitching driving mechanism, and the pitching driving mechanism drives the section seat to slide along the arc-shaped sliding groove so as to drive the feed source loudspeaker to perform pitching motion.
Through adopting above-mentioned technical scheme, every single move actuating mechanism can drive feed loudspeaker luffing motion, and then switches the angle of feed loudspeaker towards the plane of reflection, the feed polarization adjustment of being convenient for, first arch has the guide effect with the cooperation of arc spout moreover, ensures at every single move accommodation process motion stability.
The present invention further provides that the pitch drive mechanism comprises: the device comprises a connecting block, a vertical guide rail, a vertical screw rod, a vertical sliding block and a handle;
vertical guide rail is located on the inside wall of support, vertical slider with vertical guide rail sliding assembly, the both ends of vertical lead screw are rotated and are assembled in the upper and lower end of support inside wall, vertical slider with vertical lead screw thread transmission assembly, connecting block fixed connection in adjust on the seat, be provided with the chute on the connecting block, the side of vertical slider is provided with the gliding second in the chute is protruding, rotates the handle is in order to drive vertical lead screw rotates.
Through adopting above-mentioned technical scheme, when the staff just, when the reversal with the hand twist grip, can drive vertical lead screw just, the reversal rotates to the vertical slider of drive goes up and down along vertical guide rail, combines the chute to the bellied spacing of second, guide effect, and vertical slider can drive the regulation seat rotation at the lift in-process (first arch slides in the arc spout this moment), with the purpose that realizes every single move angle regulation, this every single move actuating mechanism stable in structure adjusts convenient operation.
The feed source loudspeaker is further provided with a connecting plate at one end of the telescopic driving mechanism, which is far away from the support, and a rotary driving mechanism is arranged on the connecting plate and drives the feed source loudspeaker to rotate.
Through adopting above-mentioned technical scheme, rotary drive mechanism can drive the feed loudspeaker rotation, and then switches the main polarization direction of feed loudspeaker, the feed polarization adjustment of being convenient for.
The invention is further arranged in such a way that the rotary driving mechanism is embodied as a servo motor, and the feed source horn is mounted on an output shaft of the servo motor.
Through adopting above-mentioned technical scheme, servo motor has the convenient advantage of purchase, and slew velocity is steerable moreover, and position accuracy is very accurate to when the main polarization direction of adjustment feed horn, the accuracy is higher, controls the convenience.
The invention also aims to provide a feed source switching method which has the advantages of automatically replacing the feed source and indirectly improving the testing efficiency.
The second purpose of the invention is realized by the following technical scheme: a feed source switching method is characterized in that based on the linear compact range feed source automatic switching system, the feed source switching method comprises the following steps:
s1, starting a telescopic driving mechanism to drive an original feed source horn to retract from a hole of a wave-absorbing material;
s2, starting the linear driving mechanism to drive the bottom plate to drive all the supports to slide until a new feed source horn is aligned to the hole of the wave-absorbing material, and then stopping the linear driving mechanism;
and S3, starting the telescopic driving mechanism again to drive a new feed source horn to extend into the hole of the wave-absorbing material.
By adopting the technical scheme, on the basis that the linear compact range feed source automatic switching system has the advantages, excessive manual operation is not needed, the feed source can be automatically replaced by the method, and the testing efficiency is indirectly higher.
In conclusion, the beneficial technical effects of the invention are as follows:
firstly, a plurality of feed source loudspeakers with different frequency range ranges are integrally installed on the same bottom plate, the bottom plate is driven by a linear driving mechanism to drive the feed source loudspeakers to move so as to adjust the positions of the feed source loudspeakers relative to the holes, and the wave-absorbing material can shield signal interference of other feed source loudspeakers (feed source loudspeakers without corresponding holes), so that the test accuracy is indirectly improved; when the feed source horn needs to be replaced, the telescopic driving mechanism is started to drive the original feed source horn to retract from the hole of the wave-absorbing material, then the linear driving mechanism is started to drive the bottom plate to drive all the supports to slide until the new feed source horn is aligned to the hole of the wave-absorbing material, then the linear driving mechanism is stopped, and finally the telescopic driving mechanism is started again to drive the new feed source horn to extend into the hole of the wave-absorbing material;
and secondly, the main polarization direction of the feed source horn can be switched by combining the pitching driving mechanism and the rotating driving mechanism, so that the polarization adjustment of the feed source is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a bracket and a pitch drive mechanism according to a first embodiment of the present invention, wherein one side plate of the bracket is removed;
FIG. 3 is an enlarged view at A in FIG. 1;
fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
Reference numerals: 1. a frame; 2. a base plate; 3. a support; 31. an arc-shaped chute; 32. an adjusting seat; 321. a first protrusion; 4. a linear drive mechanism; 41. a horizontal guide rail; 42. a horizontal screw rod; 43. a horizontal slider; 44. a stepping motor; 5. a telescopic driving mechanism; 51. a connecting plate; 6. a pitch drive mechanism; 61. connecting blocks; 611. a chute; 62. a vertical guide rail; 63. a vertical screw rod; 64. a vertical slide block; 641. a second protrusion; 65. a handle; 7. a rotation driving mechanism; 8. a feed source horn; 9. a wave-absorbing material; 91. and (4) holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the automatic linear compact range feed source switching system disclosed by the invention is arranged on one side of a row of wave-absorbing materials 9, and holes 91 are reserved in the wave-absorbing materials 9, and the automatic linear compact range feed source switching system comprises: the feed source comprises a frame 1, a bottom plate 2, a support 3, a feed source loudspeaker 8, a linear driving mechanism 4 and a telescopic driving mechanism 5.
The base plate 2 is assembled on the frame 1 in a sliding mode, the sliding direction of the base plate is parallel to the wave absorbing material 9, the plurality of brackets 3 are arranged on the base plate 2 at intervals, the feed source horns 8 are arranged on the brackets 3 through the telescopic driving mechanisms 5, and the frequency range of the feed source horns 8 on different brackets 3 is different; the linear driving mechanism 4 drives the bottom plate 2 to slide so that the feed horn 8 is aligned with the hole 91, and the telescopic driving mechanism 5 is used for driving the feed horn 8 to extend into the hole 91.
The telescopic driving mechanism 5 is specifically an air cylinder, the air cylinder can also be an oil cylinder or a motor-driven screw rod slider structure in other embodiments, the feed source horn 8 is driven by a telescopic rod of the air cylinder or the oil cylinder to achieve the telescopic purpose, and the air cylinder or the oil cylinder has the advantages of convenience in purchase and low cost, and is assembled. The maintenance is simpler, and the control is more convenient simultaneously.
The one end that support 3 was kept away from to flexible actuating mechanism 5 is provided with connecting plate 51, is provided with rotary drive mechanism 7 on the connecting plate 51, and rotary drive mechanism 7 orders about feed loudspeaker 8 rotary motion, and rotary drive mechanism 7 can drive feed loudspeaker 8 rotatory, and then switches feed loudspeaker 8's main polarization direction, the feed polarization adjustment of being convenient for.
Combine fig. 1 and fig. 2 to show, be provided with arc spout 31 and regulation seat 32 on the support 3, the both sides inboard wall of support 3 is located to arc spout 31, the tip of flexible actuating mechanism 5 is installed on adjusting seat 32, the both sides of adjusting seat 32 are provided with the first arch 321 that slides in arc spout 31, first arch 321 is the cylinder shape and sets up two liang of arrangements in the both sides of adjusting and doing, first arch 321 alternates in adjusting seat 32, still be provided with every single move actuating mechanism 6 on the support 3, every single move actuating mechanism 6 orders about a section seat and slides along arc spout 31, in order to drive 8 pitching motion of feed source loudspeaker. Every single move actuating mechanism 6 can drive 8 pitching motion of feed loudspeaker, and then switches the angle of feed loudspeaker 8 towards the plane of reflection, the feed polarization adjustment of being convenient for, first arch 321 has the guide effect with the cooperation of arc spout 31 in addition, ensures the motion stability in every single move accommodation process.
The pitch drive mechanism 6 includes: the device comprises a connecting block 61, a vertical guide rail 62, a vertical screw 63, a vertical slider 64 and a handle 65; vertical guide rail 62 is located on the inside wall of support 3, vertical slider 64 and vertical guide rail 62 sliding assembly, the both ends of vertical lead screw 63 rotate the assembly in the upper and lower end of support 3 inside wall, vertical slider 64 and vertical lead screw 63 screw thread transmission assembly, connecting block 61 fixed connection is on adjusting seat 32, be provided with chute 611 on the connecting block 61, the side of vertical slider 64 is provided with the gliding second in chute 611 and protrudes 641, twist grip 65 rotates in order to drive vertical lead screw 63.
Just, when the reversal at staff's hand twist grip 65, can drive vertical lead screw 63 just, the reversal rotates to drive vertical slider 64 and go up and down along vertical guide rail 62, combine spacing, the guide effect of chute 611 to protruding 641 of second, vertical slider 64 can drive regulation seat 32 and rotate (first protruding 321 slides in arc spout 31 this moment) at the lift in-process, with the purpose that realizes pitch angle regulation, this pitch actuating mechanism 6 stable in structure, adjust convenient operation.
As shown in fig. 1 and 3, the linear drive mechanism 4 includes: a horizontal guide rail 41, a horizontal screw rod 42, a horizontal sliding block 43 and a stepping motor 44; the horizontal guide rails 41 are arranged in two and are parallelly installed on the rack 1, the bottom plate 2 is assembled with the horizontal guide rails 41 in a sliding mode, two ends of the horizontal screw rod 42 are rotatably assembled on the rack 1, the horizontal screw rod 42 is located between the two horizontal guide rails 41 and is parallel to the horizontal guide rails 41, the horizontal sliding block 43 is assembled with the horizontal screw rod 42 in a threaded transmission mode, the horizontal sliding block 43 is fixedly assembled with the bottom plate 2, the stepping motor 44 is installed on the rack 1, and the output shaft of the stepping motor drives the horizontal screw rod 42 to rotate.
When the output shaft of the stepping motor 44 rotates forwards and backwards, the stepping motor can drive the horizontal screw rod 42 to rotate forwards and backwards, so that the horizontal sliding block 43 and the bottom plate 2 are driven to reciprocate along the horizontal guide rail 41, the bottom plate 2 slides more stably, the linear driving mechanism 4 is stable in structure, and the adjustment operation is convenient.
The implementation principle of the embodiment is as follows: a plurality of feed source horns 8 with different frequency range ranges are integrally installed on the same bottom plate 2, the bottom plate 2 is driven by the linear driving mechanism 4 to drive the feed source horns 8 to move so as to adjust the positions of the feed source horns 8 relative to the holes 91, and the wave-absorbing material 9 can shield signal interference of other feed source horns 8 (the feed source horns 8 which do not correspond to the holes 91) and indirectly improve the test accuracy; need with when trading feed loudspeaker 8, start flexible actuating mechanism 5, drive original feed loudspeaker 8 and withdraw from absorbing material 9's hole 91, restart sharp actuating mechanism 4, order about bottom plate 2 and drive all supports 3 and slide, aim at absorbing material 9's hole 91 until new feed loudspeaker 8, then stop sharp actuating mechanism 4, restart flexible actuating mechanism 5 at last, drive new feed loudspeaker 8 and stretch into absorbing material 9's hole 91, this system can change the feed by automation, need not the various complicated operations of manual execution, change efficiency is higher, indirectly promoted efficiency of software testing.
Example two:
referring to fig. 1 and 4, a feed source switching method disclosed in the present invention is characterized in that, based on the linear compact range feed source automatic switching system described in the first embodiment, the feed source switching method includes: s1, starting a telescopic driving mechanism 5 to drive an original feed source horn 8 to retract from a hole 91 of a wave-absorbing material 9; s2, starting the linear driving mechanism 4 to drive the bottom plate 2 to drive all the supports 3 to slide until a new feed source horn 8 is aligned to the hole 91 of the wave-absorbing material 9, and then stopping the linear driving mechanism 4; and S3, starting the telescopic driving mechanism 5 again to drive the new feed source horn 8 to extend into the hole 91 of the wave-absorbing material 9.
On the basis that the linear compact range feed source automatic switching system has the advantages, excessive manual operation is not needed, the feed source can be automatically replaced through the method, and the testing efficiency is indirectly higher.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (5)
1. The utility model provides a linear type compact range feed source automatic switching system, is located one side of a row of absorbing material (9) and arranges, absorbing material (9) reserve has hole (91), its characterized in that includes: the feed source device comprises a rack (1), a bottom plate (2), a support (3), a feed source horn (8) and a linear driving mechanism (4);
the bottom plate (2) is assembled on the rack (1) in a sliding mode, the sliding direction of the bottom plate is parallel to the wave-absorbing material (9), the plurality of brackets (3) are arranged on the bottom plate (2) at intervals, and the frequency range of the feed source horn (8) on different brackets (3) is different;
the linear driving mechanism (4) drives the bottom plate (2) to slide so as to align the feed source horn (8) with the hole (91);
further comprising: flexible actuating mechanism (5), feed loudspeaker (8) pass through flexible actuating mechanism (5) install in on support (3), flexible actuating mechanism (5) are used for ordering about feed loudspeaker (8) stretch into in hole (91), flexible actuating mechanism (5) specifically are cylinder or hydro-cylinder, feed loudspeaker (8) are driven in order to realize flexible purpose by the telescopic link of cylinder or hydro-cylinder, flexible actuating mechanism (5) are kept away from the one end of support (3) is provided with connecting plate (51), be provided with rotary drive mechanism (7) on connecting plate (51), rotary drive mechanism (7) order about feed loudspeaker (8) rotary motion, rotary drive mechanism (7) specifically are servo motor, feed loudspeaker (8) install in on servo motor's the output shaft.
2. The linear compact range feed automatic switching system according to claim 1, characterized in that said linear drive mechanism (4) comprises: the device comprises a horizontal guide rail (41), a horizontal screw rod (42), a horizontal sliding block (43) and a stepping motor (44);
horizontal guide rail (41) be equipped with two and parallel mounting in on frame (1), bottom plate (2) with horizontal guide rail (41) sliding assembly, the both ends of horizontal lead screw (42) rotate the assembly in on frame (1), horizontal lead screw (42) are located two between horizontal guide rail (41) and with horizontal guide rail (41) are parallel, horizontal slider (43) with horizontal lead screw (42) screw transmission assembly, horizontal slider (43) with bottom plate (2) fixed assembly, step motor (44) install in on frame (1) and its output shaft drives horizontal lead screw (42) rotate.
3. The linear compact range feed source automatic switching system according to claim 1, wherein an arc-shaped chute (31) and an adjusting seat (32) are arranged on the support (3), the end portion of the telescopic driving mechanism (5) is installed on the adjusting seat (32), first protrusions (321) which slide in the arc-shaped chute (31) are arranged on two sides of the adjusting seat (32), a pitching driving mechanism (6) is further arranged on the support (3), and the pitching driving mechanism (6) drives the joint seat to slide along the arc-shaped chute (31) so as to drive the pitching motion of the feed source horn (8).
4. The linear compact range feed automatic switching system according to claim 3, characterized in that said pitch drive mechanism (6) comprises: the device comprises a connecting block (61), a vertical guide rail (62), a vertical screw rod (63), a vertical sliding block (64) and a handle (65);
vertical guide rail (62) are located on the inside wall of support (3), vertical slider (64) with vertical guide rail (62) sliding assembly, the both ends of vertical lead screw (63) are rotated and are assembled in the upper and lower end of support (3) inside wall, vertical slider (64) with vertical lead screw (63) screw transmission assembly, connecting block (61) fixed connection in adjust on seat (32), be provided with chute (611) on connecting block (61), the side of vertical slider (64) is provided with gliding second arch (641) in chute (611), rotates handle (65) is in order to drive vertical lead screw (63) rotate.
5. A feed source switching method, based on the linear compact range feed source automatic switching system of any one of claims 1 to 4, the feed source switching method comprising:
s1, starting a telescopic driving mechanism (5) to drive an original feed source horn (8) to retract from a hole (91) of a wave-absorbing material (9);
s2, starting the linear driving mechanism (4), driving the bottom plate (2) to drive all the supports (3) to slide until a new feed source horn (8) is aligned to a hole (91) of the wave-absorbing material (9), and then stopping the linear driving mechanism (4);
and S3, starting the telescopic driving mechanism (5) again to drive a new feed source horn (8) to extend into the hole (91) of the wave-absorbing material (9).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253922.6A CN110133327B (en) | 2019-03-30 | 2019-03-30 | Linear compact range feed source automatic switching system and feed source switching method |
| PCT/CN2019/091897 WO2020199369A1 (en) | 2019-03-30 | 2019-06-19 | Linear compact feed automatic switching system and feed switching method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910253922.6A CN110133327B (en) | 2019-03-30 | 2019-03-30 | Linear compact range feed source automatic switching system and feed source switching method |
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| CN110133327A CN110133327A (en) | 2019-08-16 |
| CN110133327B true CN110133327B (en) | 2021-03-26 |
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| CN112540238B (en) * | 2020-12-18 | 2022-03-25 | 北京航空航天大学 | Multi-frequency shared high-efficiency compact range feed source system |
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| CN110133327A (en) | 2019-08-16 |
| WO2020199369A1 (en) | 2020-10-08 |
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