CN203101290U - Arch-method-based-based reflectivity testing system - Google Patents
Arch-method-based-based reflectivity testing system Download PDFInfo
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- CN203101290U CN203101290U CN 201320061713 CN201320061713U CN203101290U CN 203101290 U CN203101290 U CN 203101290U CN 201320061713 CN201320061713 CN 201320061713 CN 201320061713 U CN201320061713 U CN 201320061713U CN 203101290 U CN203101290 U CN 203101290U
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Abstract
The utility model discloses an arch-method-based-based reflectivity testing system. The arch-method-based-based reflectivity testing system comprises an arch-shaped frame and an antenna, and further comprises a travelling mechanism and an antenna hanger, wherein the antenna hanger comprises a hanger frame, an antenna hanger board and a level fine tuning mechanism, the travelling mechanism is mounted on the arch-shaped frame by engagement of gears and racks and is driven by a stepping motor to move on the arch-shaped frame, the hanger frame is mounted under the travelling mechanism and encloses the arch-shaped frame, the antenna hanger board is rotationally mounted at the bottom of the hanger frame through a suspension arm, the level fine tuning mechanism is telescopically connected between the hanger frame and the antenna hanger board and can move on the antenna hanger board, and the antenna is movably mounted at the bottom of the antenna hanger board through a buckle. The arch-method-based-based reflectivity testing system is simple in structure, convenient to detach and operate, capable of testing the reflectivity of oblique incidence from different angles, capable of accurately controlling the precision of the horn angle, and capable of finely tuning the posture of the horn antenna in two directions, thus shortening testing time is reduced and improving the testing efficiency.
Description
Technical field
The utility model belongs to microwave centimeter wave and millimeter wave technical field of measurement and test, relates in particular to a kind of reflectance test system of absorbing material.
Background technology
Absorbing material is widely used in the civilian and military field, and reflectivity is an important indicator parameter that is used for characterizing the absorbing material absorbing property.Stipulate according to national military standard 2038A-2011, for material development unit, need select for use the moderate arc method of measuring accuracy to constitute reflectance measurement systems, this arc method reflectance test system comprises arc frame, model platform, antenna and travelling carriage thereof, stube cable, background absorbing material, adopt the demarcation of isolating the system that finishes with the frequency response Calibration Method, be connected with vector network analyzer by network interface, the control vector network analyzer is finished calibration and data acquisition process, obtains reflectance test curve and data at last.
According to arc method reflectance test army mark, the reflectance test of the reflectance test of different frequency range and different angles oblique incidence all needs to take ladder and ascends a height and manually change the outfit corresponding broadband horn antenna or move its position, and bothersome effort influences testing efficiency and precision.How on arc frame, be provided with one can move automatically and accurately the arc method reflectance test system of control antenna angle be the problem that we need solve at present.
The utility model content
The purpose of this utility model is to provide a kind of can realize the different angles oblique incidence, the arc method reflectance test system that the incident angle precision is high and can be automatically controlled mobile.
This arc method reflectance test system that the utility model provides, comprise arc frame and antenna, also comprise a walking mechanism and an antenna hanger, described antenna hanger comprises the hanger frame, antenna hanger plate and WidFin mechanism, described travel mechanism is installed on the arc frame and by step motor drive by the rack-and-pinion engagement and moves on arc frame, in described hanger frame is installed in and is wrapped in below the travel mechanism and with arc frame, described antenna hanger plate is by the rotatable hanger frame bottom that is installed in of a suspension arm, telescopic being connected between hanger frame and the antenna hanger plate of described WidFin mechanism also can be moved on antenna hanger plate, and described antenna is movably installed in antenna hanger plate bottom by buckle.
Described WidFin mechanism comprises that rhombus four-bar mechanism, screw mandrel and bottom have the backstay of bulb, on the upper surface of described antenna hanger plate, be provided with an annular groove, the upper end of described rhombus four-bar mechanism is installed in the bottom of hanger frame, described screw mandrel is rotatable to be connected on the horizontal diagonal line of described rhombus four-bar mechanism and to drive this rhombus four-bar mechanism flexible, described backstay is installed in the bottom of rhombus four-bar mechanism, and the bulb of this backstay is movably installed in the annular groove of antenna hanger plate.
Described WidFin mechanism comprises that dextrorotation screw rod, two-way nut and bottom have the derotation screw rod of bulb, on the upper surface of described antenna hanger plate, be provided with an annular groove, the upper end of described dextrorotation screw rod is fixedly mounted on the bottom of hanger frame, described two-way nut is connected between dextrorotation screw rod and the derotation screw rod, and described derotation screw rod is movably installed in the annular groove of antenna hanger plate by the bulb of bottom.
External diameter symmetria bilateralis at described arc frame is equipped with arc-shaped rack, is symmetrically installed with three groups of gears in the two bottom sides of travel mechanism, and this travel mechanism is installed on the arc frame by the rack-and-pinion engagement.
Described antenna hanger also comprises two positioning baffles, registration arm and is installed in the permanent magnet of each positioning baffle bottom, the hanger frame bottom that is installed in the suspension arm both sides of the mutual symmetry at an angle of 90 of described each positioning baffle, described registration arm is installed on the suspension arm and by the location of the permanent magnet adhesive on the positioning baffle, this registration arm is controlled described antenna hanger plate and rotated between two positioning baffles.
On two side external surfaces of described arc frame, be pasted with some double-colored plates of arc that have numerical control angle index sign, with this arc frame on the numerical control angle index identify that symmetry has one group of view window on corresponding hanger frame two side frame bodies.
On described stepper motor, be provided with brake.
Compared with prior art, the utlity model has following advantage:
1, by on arc frame, be provided with one can electronic control travel mechanism, both can shorten the test duration, again accurate control antenna angle precision;
2, by rotatablely moving between hanger frame and the antenna hanger plate, and the fine setting effect of WidFin mechanism, the reflectance test that can carry out the different angles oblique incidence, realize two utmost points of electromagnetic horn to fine setting;
3, the movable connection method by buckle is with the antenna hanger plate bottom that fixes up an aerial wire, and the electromagnetic horn that can conveniently change the outfit improves testing efficiency;
The utility model is simple in structure, and loading and unloading and operation are all very convenient, can be used for on-the-spot test.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the local structural representation that amplifies in A-A place among Fig. 1.
Fig. 3 be Fig. 2 K to structural representation.
Fig. 4 is WidFin mechanism another structural representation in Fig. 2.
Embodiment
From Fig. 1 to Fig. 3 as can be seen, this arc method reflectance test system that the utility model provides, comprise vector network analyzer, program-controlled computer, arc frame 1, travel mechanism 2, the antenna hanger, antenna 3, background absorbing material and test platform, wherein the antenna hanger comprises hanger frame 4, antenna hanger plate 5, WidFin mechanism 6, two positioning baffles 7, registration arm 8 and the permanent magnet 9 that is installed in each positioning baffle 7 bottom, antenna 3 comprises emitting antenna and receiving antenna, and WidFin mechanism 6 comprises rhombus four-bar mechanism 61, screw mandrel 62 and bottom have the backstay 63 of bulb.
External diameter symmetria bilateralis at arc frame 1 is equipped with arc-shaped rack, two bottom sides in travel mechanism 2 is symmetrically installed with three groups of gears 21, travel mechanism 2 is installed on the arc frame 1 and by the step motor drive that has brake by the rack-and-pinion engagement and moves on arc frame 1, in hanger frame 4 is installed in travel mechanism 2 belows and arc frame 1 is wrapped in, on two side external surfaces of arc frame 1, be pasted with 12 20 millimeters thick, external diameter 5100, the double-colored plate of the arc of the semicircle that internal diameter is 4900 millimeters, on the double-colored plate of each arc, be provided with continuous numerical control angle index sign, the scale precision is 1 °, with this arc frame 1 on the numerical control angle index identify that symmetry has one group of view window 41 on 4 liang of side frame bodies of corresponding hanger frame, antenna hanger plate 5 is installed in hanger frame 4 bottoms by a suspension arm 51, this antenna hanger plate 5 and suspension arm 51 can horizontally rotate around the mounting points between suspension arm 51 and the hanger frame 4, on the upper surface of antenna hanger plate 5, be provided with an annular groove 52, the upper end of rhombus four-bar mechanism 61 is installed in the bottom of hanger frame 4, screw mandrel 62 is rotatable to be connected on the horizontal diagonal line of described rhombus four-bar mechanism 61 and to drive this rhombus four-bar mechanism 61 flexible, backstay 63 is installed in the bottom of rhombus four-bar mechanism 61, the bulb of this backstay 63 is movably installed in the annular groove 52 of antenna hanger plate 5, each positioning baffle 7 is installed in hanger frame 4 bottoms, each positioning baffle 7 equate with horizontal range between the suspension arm 51 and the horizontal line of each positioning baffle 7 and antenna hanger plate 5 mutually at an angle of 90, registration arm 8 is installed on the suspension arm 51 and by 9 adhesives of the permanent magnet on the positioning baffle 7 and locatees, these registration arm 8 control antenna hanger plates 5 rotate between two positioning baffles 7, and antenna 3 is movably installed in antenna hanger plate 5 bottoms by buckle.
Program-controlled computer is communicated with by a LAN (Local Area Network) LAN with vector network analyzer, between vector network analyzer and the emitting antenna, all connect by radio-frequency cable or waveguide between vector network analyzer and the receiving antenna, the background absorbing material is positioned at the test platform below.
When test, only need testing sample or standard component are positioned over above the test platform, select electromagnetic horn earlier according to the frequency range that will test, then it is snapped fitted on antenna hanger plate 5 bottoms, measure electromagnetic horn two narrow limit levelnesss with surveyor's staff again, and regulate the contraction state of rhombus four-bar mechanisms 61 by rotary screw 62, make 5 one-tenth horizontalitys of antenna hanger plate, simultaneously, regulate the beam axis of electromagnetic horn, make it point to measured material plate center, treat that antenna installs after, be connected with vector network analyzer by radio-frequency cable or waveguide, adopt the reflectivity of the method test absorbing material among the national military standard 2038A-2011.
WidFin of the present utility model mechanism 6 also can adopt structure as shown in Figure 4, it comprises that dextrorotation screw rod 64, two-way nut 65 and bottom have the derotation screw rod 66 of bulb, the upper end of dextrorotation screw rod 64 is installed in the bottom of hanger frame 4 by bolt, two-way nut 65 is connected between dextrorotation screw rod 64 and the derotation screw rod 66, and derotation screw rod 66 is movably installed in the annular groove 52 of antenna hanger plate 5 by the bulb of bottom.
When test, only need testing sample or standard component are positioned over above the test platform, select electromagnetic horn earlier according to the frequency range that will test, then it is snapped fitted on antenna hanger plate 5 bottoms, measure electromagnetic horn two narrow limit levelnesss with surveyor's staff again, and by rotating the contraction state of two-way nut 65 adjusting dextrorotation screw rods 64 and derotation screw rod 66, make 5 one-tenth horizontalitys of antenna hanger plate, simultaneously, regulate the beam axis of electromagnetic horn, make it point to measured material plate center, treat that antenna installs after, be connected with vector network analyzer by radio-frequency cable or waveguide, adopt the reflectivity of the method test absorbing material among the national military standard 2038A-2011.
Claims (7)
1. arc method reflectance test system, comprise arc frame (1) and antenna (3), it is characterized in that: also comprise a walking mechanism (2) and an antenna hanger, described antenna hanger comprises hanger frame (4), antenna hanger plate (5) and WidFin mechanism (6), described travel mechanism (2) is installed in arc frame (1) by the rack-and-pinion engagement and goes up and upward moved at arc frame (1) by step motor drive, in described hanger frame (4) is installed in and is wrapped in below the travel mechanism (2) and with arc frame (1), described antenna hanger plate (5) is by rotatable hanger frame (4) bottom that is installed in of a suspension arm (51), telescopic being connected between hanger frame (4) and the antenna hanger plate (5) of described WidFin mechanism (6) also can upward be moved at antenna hanger plate (5), and described antenna (3) is movably installed in antenna hanger plate (5) bottom by buckle.
2. arc method reflectance test according to claim 1 system, it is characterized in that: described WidFin mechanism (6) comprises rhombus four-bar mechanism (61), screw mandrel (62) and bottom have the backstay (63) of bulb, on the upper surface of described antenna hanger plate (5), be provided with an annular groove (52), the upper end of described rhombus four-bar mechanism (61) is installed in the bottom of hanger frame (4), described screw mandrel (62) is rotatable to be connected on the horizontal diagonal line of described rhombus four-bar mechanism (61) and to drive this rhombus four-bar mechanism (61) flexible, described backstay (63) is installed in the bottom of rhombus four-bar mechanism (61), and the bulb of this backstay (63) is movably installed in the annular groove (52) of antenna hanger plate (5).
3. arc method reflectance test according to claim 1 system, it is characterized in that: described WidFin mechanism (6) comprises dextrorotation screw rod (64), two-way nut (65) and bottom have the derotation screw rod (66) of bulb, on the upper surface of described antenna hanger plate (5), be provided with an annular groove (52), the upper end of described dextrorotation screw rod (64) is fixedly mounted on the bottom of hanger frame (4), described two-way nut (65) is connected between dextrorotation screw rod (64) and the derotation screw rod (66), and described derotation screw rod (66) is movably installed in the annular groove (52) of antenna hanger plate (5) by the bulb of bottom.
4. arc method reflectance test according to claim 1 system, it is characterized in that: the external diameter symmetria bilateralis at described arc frame (1) is equipped with arc-shaped rack, two bottom sides in travel mechanism (2) is symmetrically installed with three groups of gears (21), and this travel mechanism (2) is installed on the arc frame (1) by the rack-and-pinion engagement.
5. according to claim 2 or 3 described arc method reflectance test systems, it is characterized in that: described antenna hanger also comprises two positioning baffles (7), registration arm (8) and be installed in the permanent magnet (9) of each positioning baffle (7) bottom, hanger frame (4) bottom that is installed in suspension arm (51) both sides of the mutual symmetry at an angle of 90 of described each positioning baffle (7), described registration arm (8) is installed in suspension arm (51) and goes up and located by permanent magnet (9) adhesive on the positioning baffle (7), and this registration arm (8) described antenna hanger plate of control (5) rotates between two positioning baffles (7).
6. according to claim 2 or 3 described arc method reflectance test systems, it is characterized in that: on two side external surfaces of described arc frame (1), be pasted with some double-colored plates of arc that have numerical control angle index sign, identify that symmetry has one group of view window (41) on corresponding hanger frame (4) two side frame bodies going up the numerical control angle index with this arc frame (1).
7. according to claim 2 or 3 described arc method reflectance test systems, it is characterized in that: on described stepper motor, be provided with brake.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320061713 CN203101290U (en) | 2013-02-04 | 2013-02-04 | Arch-method-based-based reflectivity testing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320061713 CN203101290U (en) | 2013-02-04 | 2013-02-04 | Arch-method-based-based reflectivity testing system |
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| CN203101290U true CN203101290U (en) | 2013-07-31 |
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| CN 201320061713 Expired - Fee Related CN203101290U (en) | 2013-02-04 | 2013-02-04 | Arch-method-based-based reflectivity testing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592317A (en) * | 2013-11-07 | 2014-02-19 | 中国电子科技集团公司第四十一研究所 | Calibrating ball based wave-absorbing material reflectivity testing method |
| CN106706668A (en) * | 2015-11-13 | 2017-05-24 | 成都飞机工业（集团）有限责任公司 | Method for long-term tracking and detecting of reflectivity performance of microwave absorbing coating |
| CN108896709A (en) * | 2018-06-13 | 2018-11-27 | 中国航发北京航空材料研究院 | A kind of electromagnetism inclination angle test device and its test method |
| CN109239015A (en) * | 2018-10-19 | 2019-01-18 | 北京环境特性研究所 | A kind of terahertz wave band reflection underwire support |
| CN110887848A (en) * | 2019-11-25 | 2020-03-17 | 中国人民解放军国防科技大学 | Method for testing reflectivity of wave-absorbing material plate with deformability |
-
2013
- 2013-02-04 CN CN 201320061713 patent/CN203101290U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592317A (en) * | 2013-11-07 | 2014-02-19 | 中国电子科技集团公司第四十一研究所 | Calibrating ball based wave-absorbing material reflectivity testing method |
| CN103592317B (en) * | 2013-11-07 | 2016-04-27 | 中国电子科技集团公司第四十一研究所 | A kind of reflection index of wave suction material method of testing based on calibrated sphere |
| CN106706668A (en) * | 2015-11-13 | 2017-05-24 | 成都飞机工业（集团）有限责任公司 | Method for long-term tracking and detecting of reflectivity performance of microwave absorbing coating |
| CN108896709A (en) * | 2018-06-13 | 2018-11-27 | 中国航发北京航空材料研究院 | A kind of electromagnetism inclination angle test device and its test method |
| CN109239015A (en) * | 2018-10-19 | 2019-01-18 | 北京环境特性研究所 | A kind of terahertz wave band reflection underwire support |
| CN109239015B (en) * | 2018-10-19 | 2024-02-06 | 北京环境特性研究所 | Terahertz wave band reflection bow-shaped frame device |
| CN110887848A (en) * | 2019-11-25 | 2020-03-17 | 中国人民解放军国防科技大学 | Method for testing reflectivity of wave-absorbing material plate with deformability |
| CN110887848B (en) * | 2019-11-25 | 2022-04-01 | 中国人民解放军国防科技大学 | Method for testing reflectivity of wave-absorbing material plate with deformability |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20180204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |