CN105277745B - A kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable - Google Patents

A kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable Download PDF

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Publication number
CN105277745B
CN105277745B CN201510706124.6A CN201510706124A CN105277745B CN 105277745 B CN105277745 B CN 105277745B CN 201510706124 A CN201510706124 A CN 201510706124A CN 105277745 B CN105277745 B CN 105277745B
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CN
China
Prior art keywords
antenna
azimuth axis
axis
house
antenna house
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CN201510706124.6A
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Chinese (zh)
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CN105277745A (en
Inventor
赵鹏辉
何鑫
冯晓宁
吴翔
寇鹏
任涛
孙祥溪
庄明
张春波
孙平月
Original Assignee
北京无线电计量测试研究所
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Priority to CN201510706124.6A priority Critical patent/CN105277745B/en
Publication of CN105277745A publication Critical patent/CN105277745A/en
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Publication of CN105277745B publication Critical patent/CN105277745B/en

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Abstract

The present invention discloses a kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable, including substantially L-shaped azimuth axis of antenna and antenna house azimuth axis and pedestal and industrial personal computer, azimuth axis of antenna and antenna house azimuth axis are spindle rotationally arranged on pedestal, and the rotation axis coincident of the two.Antenna house azimuth axis, azimuth axis of antenna and SMAP are using closed-loop control in the present invention, and especially antenna house azimuth axis shares a Circular gratings with azimuth axis of antenna, angular error problem caused by can eliminating mechanical deformation etc. to the full extent.

Description

A kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable
Technical field
The present invention relates to a kind of radome electrical property energy measuring devices.It is electrical more particularly, to a kind of high-precision antenna cover It can wide-angle automatic measurement turntable.
Background technology
Radome electrical property can be tested largely by indexs such as the motion mode of antenna house test table, range, precision Influence.Antenna house turntable artificial antenna cover and movement relation of the reception antenna under various operating modes.With military science and technology not Disconnected development requires higher and higher, the fortune of this turntable that can just test being used for radome electrical property for antenna house various aspects of performance Flowing mode, precision, range propose higher requirement.
Antenna house test at present is various with the turntable kind of drive, mainly there is single column and double column forms, the master of both It is that antenna is different from the realization method of antenna house position relationship in test process to want difference.
In single column turntable test process, antenna is to be installed on antenna house turntable rocking arm using SMAP (antenna rotating platform) or bowed It faces upward or screws on certainly, this mode coordinated testing precision stability is good, but transfer measurement needs antenna opposite and antenna house inverts Corresponding angle realizes the position relationship of antenna and antenna house, due to fabricating, assembling and motion control many aspects The accumulation of error, during the test the space pointing accuracy of antenna and antenna house it is difficult to ensure that.
Traditional double column turntables are to meet antenna house to measure that there are two types of forms relative to the wide-angle of antenna, and mode 1 is day Line orientation is absolute construction with antenna house orientation, and when realizing linkage, the big orientation of antenna is fixed with antenna house orientation with pin, point Antenna is generous when dynamic is fixed positioned at pedestal with pin, and this structured testing precision is largely dependent upon machining accuracy and personnel Operation is horizontal, and repeatability is not high when same position different periods measure, the analysis of error difficulty.Wide-angle needs personnel to measure when measuring Midway is adjusted manually into darkroom, since measuring environment radiation is big, be there is harm for personnel health and is extended the testing time. Mode 2 is antenna bearingt to be made of crank arm strut, antenna polarization of antenna, when antenna house wide-angle is tested, in antenna and antenna house When relatively unrotatable, wide-angle test is realized in the overturning of antenna oblique fulcrum bar.But antenna oblique fulcrum bar overturning radius is big, easily and antenna Cover interference, overturns after removing antenna house, installs antenna house after the completion of overturning again there are secondary orientation problem, reversion positioning and by In antenna oblique fulcrum bar overturning bring radio-frequency cable torsion, shake the problems such as, make measurement result more unreliable, influence factor is numerous It is miscellaneous, it is unfavorable for the measurement analysis of radome electrical property energy.More than 3 kinds of test modes be primarily present personnel occupational health hazards, survey Examination process can not continuously, the problems such as test period is long, measurement accuracy is not high, influence factor is numerous and diverse.In order to adapt to various measurement sides The needs of formula need to integrate the various motion modes that radome electrical property can test, and improve measurement accuracy, reduce and tested The personnel of journey intervene, and make that measurement process is continuous, shortens time of measuring.
Invention content
The technical problem to be solved in the present invention is to provide one kind can adjust automatically angle and solve antenna house bore difference There are the radome electrical property energy measuring circurmarotates of interference problem when wide-angle measures.
In order to solve the above technical problems, the present invention uses following technical proposals:
A kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable, including substantially L-shaped azimuth axis of antenna and Antenna house azimuth axis and pedestal and industrial personal computer, the azimuth axis of antenna and antenna house azimuth axis are spindle rotationally arranged in described On pedestal, and the rotation axis coincident of the two;The top of the antenna house azimuth axis is provided with antenna house pitch axis, the antenna The elastic axis of antenna house is provided on cover pitch axis, antenna house spin axis is provided on the elastic axis of antenna house, treats The antenna house of test is arranged on the antenna house spin axis, and the other end that the antenna house azimuth axis is located in the pedestal is set There are Circular gratings, the azimuth axis of antenna driving for driving the azimuth axis of antenna rotation is additionally provided on the antenna house azimuth axis Component;The top of the azimuth axis of antenna is provided with antenna telescopic shaft, and the antenna telescopic shaft is equipped with SMAP, day to be tested Line is arranged on the SMAP, the azimuth axis of antenna be located at the other end in the pedestal be equipped with brake block and with the round light Corresponding first reading head of grid;First clutch corresponding with the brake block and second clutch are equipped in the pedestal, Azimuth axis of antenna is integrated with pedestal locking when the first clutch is closed, the azimuth axis of antenna when second clutch is closed Be integrated with the shaft locking of antenna house orientation, be further fixedly arranged in the pedestal the second reading head corresponding with the Circular gratings and For the antenna house azimuth axis rotary driving part that antenna house azimuth axis is driven to rotate;The industrial personal computer receive the first reading head and The Data Concurrent of second reading head send control signal to be rotated to the antenna house azimuth axis rotary driving part and azimuth axis of antenna Driving part, so as to carry out closed-loop control to the rotation of azimuth axis of antenna and antenna house azimuth axis.
Preferably, it is provided with to measure the grid ruler of its rotation angle and third reading head, the industry control on the SMAP Machine receives the data of third reading head and sends control signal to SMAP driving parts, realizes the closed-loop control to the SMAP.
Preferably, null pick-up is equipped on the antenna house azimuth axis, azimuth axis of antenna and SMAP, the zero-bit passes Sensor is connect with industrial personal computer.
Preferably, the antenna side for limiting the azimuth axis of antenna rotational angle is provided on the antenna house azimuth axis Position axis electric limiting switch and azimuth axis of antenna mechanical limit switch.
Preferably, the antenna house azimuth axis for limiting the antenna house azimuth axis rotational angle is provided in the pedestal Electric limiting switch and antenna house azimuth axis mechanical limit switch.
Preferably, the vernier caliper for indicating stroke is provided on the antenna telescopic shaft.
Beneficial effects of the present invention are as follows:
The present invention solves antenna house bore difference, interference problem when wide-angle measures.Using the day mentioned in invention Irdome electrical property wide-angle automatic measuring equipment, since its antenna house azimuth axis, azimuth axis of antenna and SMAP use closed loop control System, especially antenna house azimuth axis share a Circular gratings with azimuth axis of antenna, can eliminate mechanical deformation etc. to the full extent and cause Angular error problem.Simultaneously by the present invention, the place that different aperture antenna covers measure can also be solved the problems, such as, and avoid day The problem of irdome series is more, and size difference is big, and single darkroom measuring environment can not be taken into account, are adapted to more using the equipment More antenna houses and antenna measurement, reduces the consumption of resource.
Description of the drawings
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the structure diagram of the present invention.
Fig. 2 shows the sectional views of the present invention.
Fig. 3 shows the structure diagram of the antenna house azimuth axis of the present invention.
Fig. 4 shows the partial schematic diagram on the antenna house azimuth axis of the present invention.
Fig. 5 shows the structure diagram of the azimuth axis of antenna of the present invention.
Fig. 6 shows the partial schematic diagram on the azimuth axis of antenna of the present invention.
Fig. 7 shows the structure diagram of the pedestal of the present invention.
Fig. 8 shows the partial schematic diagram of the pedestal of the present invention.
Fig. 9 shows the test position schematic diagram of the present invention.
Figure 10 shows antenna house azimuth axis slewing area schematic diagram when the azimuth axis of antenna of the present invention is fixed.
Figure 11 shows antenna house azimuth axis rotation model when the azimuth axis of antenna of the present invention is rotated relative to antenna house azimuth axis Enclose schematic diagram.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings It is bright.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that institute is specific below The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
As depicted in figs. 1 and 2, a kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable, including antenna house side Position axis 1, azimuth axis of antenna 2, pedestal 3 and industrial personal computer, antenna house azimuth axis 1 and azimuth axis of antenna 2 are substantially L-shaped, and the two can turn It sets dynamicly on the base 3, the rotation axis coincident of antenna house azimuth axis 1 and azimuth axis of antenna 2, therefore the two is located at pedestal 3 Interior part is the structure of suit, and antenna house azimuth axis 1 is located at outside, and azimuth axis of antenna 2 is located inside.
As shown in Figure 3 and Figure 4, the top of antenna house azimuth axis 1 is equipped with antenna house pitch axis 11, on antenna house pitch axis 11 Equipped with the elastic axis 12 of antenna house, the elastic axis 12 of antenna house is equipped with antenna house spin axis 13.Antenna house pitch axis 11 With the null pick-up that is connect with industrial personal computer is equipped on antenna house spin axis 13.Antenna side is additionally provided on antenna house azimuth axis 1 Position axis driving part 14, azimuth axis of antenna electric limiting switch 15, azimuth axis of antenna mechanical limit switch 16 and azimuth axis of antenna Null pick-up 17.The bottom end that antenna house azimuth axis 1 is located in pedestal 4 is equipped with Circular gratings 18 and second clutch 19.Antenna Azimuth axis electric limiting switch 15 and azimuth axis of antenna null pick-up 17 transmit position signal to industrial personal computer.
As shown in Figure 2, Figure 5 and Figure 6, the top of azimuth axis of antenna 2 is equipped with antenna telescopic shaft 21, is set on antenna telescopic shaft 21 There is a SMAP22, be equipped with gear 23 on azimuth axis of antenna 2 with 14 corresponding position of azimuth axis of antenna driving part, azimuth axis of antenna drives 14 drive gear 23 of dynamic component rotates, so as to which azimuth axis of antenna 2 be driven to rotate, meeting and azimuth axis of antenna in 23 rotary course of gear Electric limiting switch 15 and azimuth axis of antenna mechanical limit switch 16 contact, so as to limit the rotation angle of azimuth axis of antenna 2. The bottom end that azimuth axis of antenna 2 is located in pedestal 3 is equipped with 24 and first reading head 25 of brake block, and the first reading head 25 reads Circular gratings 18, and data are transmitted to industrial personal computer, increase so as to accurately read azimuth axis of antenna 2 relative to the rotational angle of antenna house azimuth axis 1 Amount, industrial personal computer transmit control signal to azimuth axis of antenna driving part 14, so as to form closed-loop control to azimuth axis of antenna 2.Such as Shown in Fig. 6, antenna telescopic shaft 21 is gear & rack structure, which is provided with locking nut 26 and mark for fixing stroke and stretches The vernier caliper 27 of contracting amount.SMAP22 is equipped with grid ruler 28 and third reading head 29, and third reading head 29 transmits number to industrial personal computer According to, so as to accurately read the rotation angle of SMAP22, industrial personal computer sends control signal to the rotary driving part of SMAP22, so as to Closed-loop control is formed to SMAP22.Null pick-up, electric limiting switch and mechanical limit switch are additionally provided on SMAP22.
As shown in Fig. 2, Fig. 7 and Fig. 8, it is equipped with and 24 corresponding first clutch 31 of brake block, the first clutch in pedestal 3 It is that azimuth axis of antenna 2 is integrated with the locking of pedestal 3 when first clutch 31 is closed that device 31, which clamps brake block 24, second clutch 19 It is that azimuth axis of antenna 2 is integrated with the locking of antenna house azimuth axis 1 when second clutch 19 is closed to clamp brake block 24.In pedestal 3 It is further fixedly arranged on 18 corresponding second reading head 32 of Circular gratings and the antenna house side for antenna house azimuth axis 1 to be driven to rotate Position axis rotary driving part 33.Second reading head 32 reads Circular gratings 18 and transmits data to industrial personal computer, so as to accurately read day The rotation angle of irdome azimuth axis 1, industrial personal computer sends control signal to antenna house azimuth axis rotary driving part 33, so as to day Irdome azimuth axis 1 forms closed-loop control.For one by motor-driven worm screw, worm screw drives antenna house azimuth axis rotary driving part 33 The turbine of dynamic antenna house azimuth axis bottom end setting, so as to which antenna house azimuth axis 1 be driven to rotate.Antenna house side is additionally provided in pedestal 3 Position axis electric limiting switch, antenna house azimuth axis mechanical limit switch and antenna house azimuth axis null pick-up.
As shown in figure 9, turntable uses preceding adapted calibration, antenna house azimuth axis 1, azimuth axis of antenna 2, SMAP22 are directed to Zero-bit.The zero-bit and finger of angular deviation, wherein antenna house azimuth axis 1 of each axis null pick-up of industrial personal computer processing with being directed toward zero-bit It is overlapped to zero-bit, the zero-bit of azimuth axis of antenna 2 is the zero-bit relative to antenna house azimuth axis 1, and SMAP zero-bits are relative to antenna The zero-bit of azimuth axis.Turntable after the power is turned on open by the first clutch 31, the second clutch 19, and then azimuth axis of antenna 2, SMAP22 are sought simultaneously Zero, after azimuth axis of antenna 2 seeks zero second clutch 19 be closed, the locking of azimuth axis of antenna 2 and antenna house azimuth axis 1 is integrally formed, so Irdome azimuth axis 1 will drive azimuth axis of antenna 2 act completion antenna house azimuth axis 1 together to seek zero the day after tomorrow, remaining each axis seeks zero (antenna Cover pitch axis, antenna house spin axis), it seeks zero completion and has test condition.
As shown in Figure 10, the azimuth axis of antenna 2 being set on antenna house azimuth axis 1 can be done relative to antenna house azimuth axis 1 Continuous rotation in the range of ± A (2A), and can be integrally formed with the locking of pedestal 3 or be locked with antenna house azimuth axis 1 at an arbitrary position It is integrally formed.
As shown in figure 11, wide-angle measure when, first complete seek zero, after seeking zero first clutch 31, the second clutch 19 open It opens, azimuth axis of antenna 2 is first around O point rotation angles A (angle A is determined by measurement range, is the 1/4 of actual measurement range), day Line azimuth axis 2, which is rotated in place, to be postponed the first clutch 31 and is closed, and azimuth axis of antenna 2 is integrally formed with the fixation of pedestal 3 at this time, then Remains stationary after SMAP22 rotation angles A, the rotation of antenna house azimuth axis 1 to+2A angles are then continuous to measure to zero-bit.
Above procedure causes 1 script measurement angle of antenna house azimuth axis to be extended to 4A ranges from 2A ranges.
The turntable can not only realize that wide-angle measures, and due to being provided with two groups of arrangement of clutch, can cause azimuth axis of antenna 2 The second clutch 19 is closed during any position in the range of relative to antenna house azimuth axis 2A so that antenna house azimuth axis 1 and antenna The fixation of azimuth axis 2 is integrally formed, and can meet the coordinated testing of antenna house and antenna at this time, due to being provided with antenna house telescopic shaft With antenna telescopic shaft, SMAP azimuth axis and antenna house pitch axis, antenna house spin axis be adapted to nearly all antenna house with The measurement relationship of antenna.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair The restriction of embodiments of the present invention for those of ordinary skill in the art, may be used also on the basis of the above description To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is every to belong to this hair The obvious changes or variations that bright technical solution is extended out are still in the row of protection scope of the present invention.

Claims (6)

1. a kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable, it is characterised in that:Including substantially L-shaped antenna Azimuth axis and antenna house azimuth axis and pedestal and industrial personal computer, the azimuth axis of antenna and antenna house azimuth axis are rotatably set It puts on the pedestal, and the rotation axis coincident of the two;
The top of the antenna house azimuth axis is provided with antenna house pitch axis, before being provided with antenna house on the antenna house pitch axis Telescopic shaft afterwards is provided with antenna house spin axis on the elastic axis of antenna house, and antenna house to be tested is arranged on the day On irdome spin axis, the other end that the antenna house azimuth axis is located in the pedestal is equipped with Circular gratings, the antenna house orientation The azimuth axis of antenna driving part for driving the azimuth axis of antenna rotation is additionally provided on axis;
The top of the azimuth axis of antenna is provided with antenna telescopic shaft, and the antenna telescopic shaft is equipped with antenna rotating platform, to be tested Antenna be arranged on the antenna rotating platform, the azimuth axis of antenna be located at the other end in the pedestal be equipped with brake block and with Corresponding first reading head of the Circular gratings;
First clutch corresponding with the brake block and second clutch are equipped in the pedestal, the first clutch closes Azimuth axis of antenna is integrated with pedestal locking during conjunction, and azimuth axis of antenna is locked with antenna house azimuth axis when the second clutch is closed It is tightly integrated, the second reading head corresponding with the Circular gratings is further fixedly arranged in the pedestal and for driving antenna house side The antenna house azimuth axis rotary driving part of position axis rotation;
The industrial personal computer receives the first reading head and the Data Concurrent of the second reading head send control signal to the antenna house orientation Axis rotary driving part and azimuth axis of antenna rotary driving part, so as to be rotated into azimuth axis of antenna and antenna house azimuth axis Row closed-loop control.
2. a kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable according to claim 1, it is characterised in that: It is provided on the antenna rotating platform for measuring the grid ruler of its rotation angle and third reading head, the industrial personal computer receives third and reads The data of several simultaneously send control signal to antenna rotating platform driving part, realize the closed-loop control to the antenna rotating platform.
3. a kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable according to claim 1, it is characterised in that: Null pick-up, the null pick-up and industry control are equipped on the antenna house azimuth axis, azimuth axis of antenna and antenna rotating platform Machine connects.
4. a kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable according to claim 1, it is characterised in that: It is provided on the antenna house azimuth axis and is opened for limiting the azimuth axis of antenna electric limiting of the azimuth axis of antenna rotational angle It closes and azimuth axis of antenna mechanical limit switch.
5. a kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable according to claim 1, it is characterised in that: Be provided in the pedestal for limit the antenna house azimuth axis rotational angle antenna house azimuth axis electric limiting switch and Antenna house azimuth axis mechanical limit switch.
6. a kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable according to claim 1, it is characterised in that: The vernier caliper for indicating stroke is provided on the antenna telescopic shaft.
CN201510706124.6A 2015-10-27 2015-10-27 A kind of high-precision antenna cover electrical property wide-angle automatic measurement turntable CN105277745B (en)

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Publication number Priority date Publication date Assignee Title
CN109494483A (en) * 2018-07-13 2019-03-19 中国航空工业集团公司济南特种结构研究所 A kind of telecentricity imaginary axis angle adjustment mechanism

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CN109270300B (en) * 2017-07-18 2020-12-29 中国航空工业集团公司济南特种结构研究所 Antenna house test revolving stage
CN109270363A (en) * 2017-07-18 2019-01-25 中国航空工业集团公司济南特种结构研究所 A kind of belly antenna cover electric performance test method
CN107765079A (en) * 2017-09-28 2018-03-06 国营芜湖机械厂 A kind of radome power transmission efficiency detecting tool
CN109490583A (en) * 2018-07-13 2019-03-19 中国航空工业集团公司济南特种结构研究所 A kind of antenna house test automatic positioning switching device
CN109489593B (en) * 2018-07-13 2020-10-20 中国航空工业集团公司济南特种结构研究所 Multi-degree-of-freedom IPD (inter-digital phase delay) testing system
CN110456187A (en) * 2019-07-22 2019-11-15 中国航空工业集团公司济南特种结构研究所 A kind of Large Radar Antenna cover electric performance test Multi-angle regulating device

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