CN105425827A - Auxiliary positioning device and method for adjustable radar feed source - Google Patents
Auxiliary positioning device and method for adjustable radar feed source Download PDFInfo
- Publication number
- CN105425827A CN105425827A CN201510747372.5A CN201510747372A CN105425827A CN 105425827 A CN105425827 A CN 105425827A CN 201510747372 A CN201510747372 A CN 201510747372A CN 105425827 A CN105425827 A CN 105425827A
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- feed
- rotating shaft
- holder
- feed source
- guide rail
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses an auxiliary positioning device and method for an adjustable radar feed source, and the device comprises an installation substrate, three guide rails with translational freedom degrees, and two rotating shafts with rotational freedom degrees. The installation substrate serves as a base, and the guide rails are mutually orthogonal in postures, thereby forming three translational freedom degrees. The housing of the lateral rotating shaft is installed on a sliding block on the guide rail at a tail stage, and the longitudinal rotating shaft is disposed on a step shaft on the lateral rotating shaft, and is perpendicular to the lateral rotating shaft, so as to form two orthogonal rotational freedom degrees. A fixed seat located at the tail end of the device can be directly used for target sphere measurement of a laser tracker or the electrical performance testing of a feed source through a feed source adapter board. When the device is used for measuring and adjusting the position of the feed source, the adjustment amounts of the plurality of freedom degrees can be directly read. The device can provide accurate data of the position of the feed source, and improves the efficiency of the positioning of the feed source.
Description
Technical field
The present invention is in radar antenna system assembling and setting process, when measurement is positioned to antenna feed, and the adjustable auxiliary locator of use.
Background technology
Before the assembling post debugging of radar antenna system, need to carry out pre-determined bit to feed location, because antenna system configuration is complicated, the direct adjustment that phase center between feed and reflecting surface and focus relative position are measured usually.Reliable, the efficient method of current one utilizes laser tracker to carry out high-precision position measurement, and constantly provide the error between feed actual coordinate and design coordinate, until be adjusted in error allowed band by feed.Its adjustment process mainly adopts the mode of increase and decrease pad to regulate the position of stent ends feed on the basis of manufactured feed source bracket, this mode has several shortcoming: one is the precise relation that cannot quantize to increase and decrease pad and feed location, needs make repeated attempts, and efficiency is lower; Two is to obtain the position of feed installed surface in design coordinate system, once after feed or backing positions change, is easy to cause early stage test result to cancel.
Summary of the invention
The object of this invention is to provide a kind of adjustable measurement auxiliary locator for radar feed, in the middle of the process measuring and adjust feed location, the adjustment amount of multiple spatial degrees of freedom can be carried out record.
The technical solution used in the present invention achieves a kind of adjustable radar feed auxiliary locator:
Include mounting base, the longitudinal rail of three translation freedoms, cross slide way, vertical guide rail, the angle of pitch rotating shaft of two rotational freedoms, position angle rotating shaft and holder, feed card extender totally seven critical pieces measured for laser tracker target ball.Mounting base bottom surface is distributed with several through hole, is convenient to adopt screw to be fastened on antenna holder.In addition, mounting base bottom surface machined a locating slot, and the positioning boss on size and antenna holder has matching relationship, thus realizes the fastening of this device and location.Longitudinally, laterally, vertical guide rail is made up of three guide rail slide block external members with damping confining force and graduation indication respectively.The track of longitudinal rail is fixed on mounting base, and the track installation of vertical guide rail is on the slide block of longitudinal rail, and the track installation of cross slide way is on the slide block of vertical guide rail.According to the feature of stock size radar antenna manufacture assembling, the displacement of feed on three degree of freedom direction is generally centimetre-sized, so guide rail can not cause because of long reducing rigidity.The angle of pitch, position angle rotating shaft are formed primarily of Step Shaft, rolling bearing, shell, rotation code-disc.Angle of pitch rotating shaft shell is fixed on the slide block of cross slide way, and position angle rotating shaft shell is fixed on angle of pitch rotating shaft Step Shaft end.The usual angle of pitch and azimuth angle error, all within 10 °, therefore rotate code-disc and only get ± 10 ° of ranges.Holder is fixed on position angle rotating shaft Step Shaft end, and holder outside surface is a plane and two target ball pilot holes, and pilot hole is processed into bellmouth, and the requirement on machining accuracy of this bellmouth is very high, can obtain enough positioning precisioies when target ball is located with it.Magnet is furnished with, for holding target ball at the back side of bellmouth.One of them pilot hole simulation feed phase centre location, another pilot hole is used for auxiliary positioning, provides the coordinate key element setting up feed local coordinate system.Feed card extender is mainly used in Feed Horn and holder docking to fix, and the joint face of holder and feed card extender is furnished with pilot hole to ensure positional precision.
Accompanying drawing explanation
Fig. 1 is the structural representation of laser tracker target ball measuring state of the present invention.
Fig. 2 is the structural representation of feed electric performance test state of the present invention.
Number in the figure title: 1, mounting base, 2, longitudinal rail, 3, cross slide way, 4, vertical guide rail, 5, angle of pitch rotating shaft, 6, position angle rotating shaft, 7, holder, 8, pilot hole, 9, auxiliary positioning hole, 10, target ball, 11, feed card extender, 12, feed.
Embodiment
A kind of adjustable radar feed auxiliary locator and method are the present invention relates to.Concrete implementation step is as follows:
Step one: when utilizing this measurement device auxiliary positioning, first mounting base 1 is arranged on the corresponding installed surface of antenna system, more each guide rail 2,3,4 and rotating shaft 5,6 position are adjusted to mid point.
Step 2: utilize laser tracker to start to set up the benchmark of antenna system, and import theory three-dimensional model, then known reflecting surface focus and feed phase center theoretical position separately.Wherein, because the measurement adjustment of reflecting surface is carried out prior to feed phase center, so the coordinate of reflecting surface focus will be determined with the physical location after adjustment.
Step 3: when needs carry out locations of structures measure time, on the pilot hole 8 laser tracker target ball 10 being placed on simulation feed phase center and auxiliary positioning hole 9, set up the local coordinate system of simulation feed.Constantly utilize the position of laser tracker to target ball 10 to sample, gained measuring position and theoretical position are compared, and can draw the adjustment amount of each freedom of motion.Repeatedly adjustment is until the site error of target ball 10 (namely simulating feed phase center) meets positioning requirements, and the position scale of parts 2,3,4,5,6 in pen recorder, can obtain the home position parameter of follow-up telecommunication testing and debugging.When needs carry out electric performance test, after feed card extender 11 is connected feed 12, use dog screw to be arranged on holder 7, can test feed.In test process, only enterprising line position fine setting need can obtain the optimum position adjustment amount of feed on the basis of above-mentioned steps.So far, all scale readings on pen recorder also convert, and can obtain the critical size parameter of the feed source bracket needing to manufacture.
In addition, according to the radar of different model, only need the mounting base changing adaptive corresponding locating slot, this device itself has certain universality.
Claims (6)
1. an adjustable radar feed auxiliary locator, it is characterized in that: comprise mounting base (1), the longitudinal rail (2) of three translation freedoms, cross slide way (3), vertical guide rail (4), the angle of pitch rotating shaft (5) of two rotational freedoms, position angle rotating shaft (6), a holder (7);
Wherein longitudinal rail (2), cross slide way (3), vertical guide rail (4) are made up of three guide rail slide block external members with damping confining force and graduation indication respectively; The track of longitudinal rail (2) is fixed on mounting base (1), the track installation of vertical guide rail (4) is on the slide block of longitudinal rail (2), and the track installation of cross slide way (3) is on the slide block of vertical guide rail (4);
Wherein angle of pitch rotating shaft (5), position angle rotating shaft (6) are made up of Step Shaft, rolling bearing, shell, rotation code-disc; Angle of pitch rotating shaft (5) shell is fixed on the slide block of cross slide way (3), and position angle rotating shaft (6) shell is fixed on angle of pitch rotating shaft (5) Step Shaft end;
Holder (7) is fixed on position angle rotating shaft (6) Step Shaft end;
Each parts are equipped with graduation indication and have damping confining force.
2. adjustable radar feed according to claim 1 measures auxiliary locator, it is characterized in that:
Described holder (7) outside surface is a plane and two laser tracker target ball pilot holes, and pilot hole is processed into when bellmouth is located for laser tracker target ball (10) and obtains enough positioning precisioies; Magnet is furnished with, for holding laser tracker target ball (10) at the back side of bellmouth; One of them pilot hole simulation feed phase centre location, another pilot hole is used for auxiliary positioning, provides the coordinate key element setting up feed local coordinate system.
3. the adjustable radar feed of one according to claim 1 measures auxiliary locator, it is characterized in that: described feed card extender (11) is mainly used in Feed Horn and holder (7) to be fixed, after feed card extender (11) connects feed (12), use dog screw to be arranged on holder (7), follow-up test can be carried out to feed; The joint face of holder (7) and feed card extender (11) is furnished with pilot hole to ensure positional precision.
4. an adjustable radar feed assisted location method, is characterized in that:
Step one: be arranged on the corresponding installed surface of antenna system by mounting base (1), is adjusted to mid point by longitudinal rail (2), cross slide way (3), vertical guide rail (4) and angle of pitch rotating shaft (5), position angle rotating shaft (6) position;
Step 2: utilize laser tracker to start to set up the benchmark of antenna system, and import theory three-dimensional model, then known reflecting surface focus and feed phase center theoretical position separately; The coordinate of reflecting surface focus is determined with the physical location after adjustment;
Step 3: when needs carry out locations of structures measurement, device according to claim 1,2, on the pilot hole (8) laser tracker target ball (10) being placed on simulation feed phase center and auxiliary positioning hole (9), set up the local coordinate system of simulating feed; Constantly utilize the position of laser tracker to target ball (10) to sample, gained measuring position and theoretical position are compared, and can draw the adjustment amount of each degree of freedom; Repeatedly adjustment is until target ball (10), namely the site error simulating feed phase center meets positioning requirements, the position scale of parts (2), (3), (4), (5), (6) in pen recorder, can obtain the home position parameter of follow-up telecommunication testing and debugging; When needs carry out electric performance test, the device according to claim 1,3, after feed card extender (11) connects feed (12), uses dog screw to be arranged on holder (7), can test feed.
5. one according to claim 4 adjustable radar feed assisted location method, is characterized in that: all scale readings on pen recorder also convert, and can obtain the critical size parameter of the feed source bracket needing to manufacture.
6. the adjustable radar feed of the one according to claim 4 or 5 assisted location method, is characterized in that: according to the radar of different model, only needs the mounting base changing adaptive corresponding locating slot.
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108152794A (en) * | 2017-12-22 | 2018-06-12 | 安徽仁信安防电子工程有限公司 | A kind of marine exploration marine radar direction adjusting apparatus and displacement method |
CN109839632A (en) * | 2017-11-29 | 2019-06-04 | 中国气象局气象探测中心 | A kind of localization method and device of radar antenna feed |
CN111175711A (en) * | 2020-01-08 | 2020-05-19 | 中国船舶重工集团公司第七二四研究所 | Combined radar feed source adjusting device |
CN112068093A (en) * | 2020-09-10 | 2020-12-11 | 上海航天电子通讯设备研究所 | Multi-degree-of-freedom automatic adjustment testing device for antenna feeder subsystem |
CN114295051A (en) * | 2021-12-29 | 2022-04-08 | 中国科学院近代物理研究所 | Automatic positioning device and method for harmonic coil magnetic field measurement |
CN115015880A (en) * | 2022-05-30 | 2022-09-06 | 中国科学院合肥物质科学研究院 | Quick adjustable structure suitable for automatic adjustable speculum standard target ball of gesture |
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JPH1082851A (en) * | 1996-09-06 | 1998-03-31 | Nissan Motor Co Ltd | Laser distance measuring device |
CN1721142A (en) * | 2004-07-15 | 2006-01-18 | 中国科学院自动化研究所 | A kind of stereoscopic vision monitoring device with five degrees of freedom |
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CN102841265A (en) * | 2012-09-04 | 2012-12-26 | 成都锦江电子系统工程有限公司 | Three-dimensional high-precision fully-automatic ultra-high frequency band radar antenna near-field testing system |
CN203658497U (en) * | 2013-12-20 | 2014-06-18 | 南京恩瑞特实业有限公司 | Secondary radar column feed test board |
CN104409825A (en) * | 2014-12-01 | 2015-03-11 | 中国科学院新疆天文台 | Focusing method for feed source of radio telescope receiver |
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Patent Citations (7)
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JPH1082851A (en) * | 1996-09-06 | 1998-03-31 | Nissan Motor Co Ltd | Laser distance measuring device |
CN1721142A (en) * | 2004-07-15 | 2006-01-18 | 中国科学院自动化研究所 | A kind of stereoscopic vision monitoring device with five degrees of freedom |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109839632A (en) * | 2017-11-29 | 2019-06-04 | 中国气象局气象探测中心 | A kind of localization method and device of radar antenna feed |
CN108152794A (en) * | 2017-12-22 | 2018-06-12 | 安徽仁信安防电子工程有限公司 | A kind of marine exploration marine radar direction adjusting apparatus and displacement method |
CN111175711A (en) * | 2020-01-08 | 2020-05-19 | 中国船舶重工集团公司第七二四研究所 | Combined radar feed source adjusting device |
CN111175711B (en) * | 2020-01-08 | 2024-01-05 | 中国船舶集团有限公司第七二四研究所 | Combined radar feed source adjusting device |
CN112068093A (en) * | 2020-09-10 | 2020-12-11 | 上海航天电子通讯设备研究所 | Multi-degree-of-freedom automatic adjustment testing device for antenna feeder subsystem |
CN112068093B (en) * | 2020-09-10 | 2023-10-27 | 上海航天电子通讯设备研究所 | Multi-degree-of-freedom automatic adjustment testing device for antenna feeder subsystem |
CN114295051A (en) * | 2021-12-29 | 2022-04-08 | 中国科学院近代物理研究所 | Automatic positioning device and method for harmonic coil magnetic field measurement |
CN115015880A (en) * | 2022-05-30 | 2022-09-06 | 中国科学院合肥物质科学研究院 | Quick adjustable structure suitable for automatic adjustable speculum standard target ball of gesture |
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