JPS61172007A - Mirror surface measuring apparatus of parabolic antenna - Google Patents
Mirror surface measuring apparatus of parabolic antennaInfo
- Publication number
- JPS61172007A JPS61172007A JP1254385A JP1254385A JPS61172007A JP S61172007 A JPS61172007 A JP S61172007A JP 1254385 A JP1254385 A JP 1254385A JP 1254385 A JP1254385 A JP 1254385A JP S61172007 A JPS61172007 A JP S61172007A
- Authority
- JP
- Japan
- Prior art keywords
- mirror surface
- gauge
- boat
- antenna
- shaped arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
Abstract
Description
【発明の詳細な説明】
皮呈上色机１分国
本発明は衛生通信の地上局等において使用されるパラボ
ラ形アンテナの湾曲主鏡面の精度を測定する装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for measuring the accuracy of a curved primary mirror surface of a parabolic antenna used in a ground station for satellite communications.
狐米免挟権
衛生通信の地上局等において用いられるパラボラ形アン
テナは、近年準ミリ波と呼ばれる高い周波数を使用され
る傾向にあり、それに伴い、高い鏡面精度を要求される
が、このような高精度パラボラ形アンテナの鏡面精度を
測定する場合、従来、直立ポール形回転ゲージが一般的
であった。これは、被測定アンテナのアンテナ軸上に一
致して回転ポールを設置し、これより舟形アームを張り
出し、アームより被測定アンテナ鏡面に対して差動トラ
ンス等の変位センサーを突き出し、鏡面精度を測定する
ものであるが、変位センサーのゼロ値更正を行うために
、鏡面カーブを数値制御装置（ＮＧ）等により加工した
ゲージ板を含む更正原器が必要となり、装置も大型化し
、コストアップの要因となっていた。In recent years, parabolic antennas used in the ground stations of the Fox-US Immunity Satellite Communications have tended to use high frequencies called sub-millimeter waves, and as a result, high specular precision is required. When measuring the mirror surface accuracy of high-precision parabolic antennas, upright pole-type rotary gauges have conventionally been used. This involves installing a rotating pole on the antenna axis of the antenna under test, protruding a boat-shaped arm from the pole, and protruding a displacement sensor such as a differential transformer from the arm against the mirror surface of the antenna under test to measure the mirror surface accuracy. However, in order to correct the zero value of the displacement sensor, a correction standard including a gauge plate with a mirror surface curve processed by a numerical control device (NG) etc. is required, which increases the size of the device and increases costs. It became.
このような従来の鏡面測定装置を第４図および第５図に
示している。まず、第４図において、ｌは被測定アンテ
ナ鏡面１ａを有するパラボラアンテナ、２はこのアンテ
ナを昇降可能に支持するためのアンテナ支持台であって
、図には１ケ所しか示していないが、パラボラアンテナ
１の円周方向に３ケ所設置されている。４は測定治具３
を設置するための定盤、５はアンテナ１の中心軸線上に
一致して設置される回転ポール、６は回転ポール５から
半径方向に張り出した舟形アーム、７は舟形アーム６に
数個所取り付けた差動トランス等の変位センサである。Such a conventional specular surface measuring device is shown in FIGS. 4 and 5. First, in FIG. 4, l is a parabolic antenna having a mirror surface 1a of the antenna to be measured, and 2 is an antenna support stand for supporting this antenna in a vertically movable manner. Three locations are installed in the circumferential direction of the antenna 1. 4 is measurement jig 3
5 is a rotating pole installed on the central axis of the antenna 1, 6 is a boat-shaped arm extending in the radial direction from the rotating pole 5, and 7 is attached to the boat-shaped arm 6 at several locations. This is a displacement sensor such as a differential transformer.
これらの変位センサ７のゼロ値更正のためには、第５図
に示すように、測定器具３を測定器原器８′ 上に設置
しなければならない。測定器原器８の定盤９上には、差
動トランスのゼロ値更正用の、規準となるアンテナ鏡面
と一致する曲線１０ａを有する仮ゲージ１０が設置され
ている。この板ゲージ１０により各変位センサ７のゼロ
値更正を行い、その後第４図のようにアームを回転させ
ながら被測定アンテナ１の主鏡面１ａを測定していた。In order to correct the zero value of these displacement sensors 7, the measuring instrument 3 must be placed on a measuring instrument prototype 8', as shown in FIG. A temporary gauge 10 having a curve 10a that coincides with the antenna mirror surface serving as a standard is installed on the surface plate 9 of the measuring instrument prototype 8 for zero value correction of the differential transformer. The plate gauge 10 was used to correct the zero value of each displacement sensor 7, and then the main mirror surface 1a of the antenna to be measured 1 was measured while rotating the arm as shown in FIG.
発明が解決しようとする問題点
前述のような従来のアンテナ鏡面測定装置によれば、ゲ
ージ１０を含む更正原器８を必要とし、装置が大型化し
、コストアンプの要因となるだけではなく、パラボラ形
アンテナを設置した現在での測定作業がきわめて困難で
ある。そこで、本発明では、装置の小型化、コストダウ
ンを図ると共に、現地での測定作業を簡単に行なうこと
のできるパラボラ形アンテナ鏡面測定装置を提供するこ
とにある。Problems to be Solved by the Invention According to the conventional antenna mirror surface measuring device as described above, the calibration standard 8 including the gauge 10 is required, which not only increases the size of the device and increases the cost, but also increases the parabolic surface measurement device. Measurement work is extremely difficult with the current installation of shaped antennas. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a parabolic antenna mirror surface measuring device that can be miniaturized and cost-reduced, and can easily perform on-site measurement work.
問題点を解ンするための手段
本発明によれば、パラボラ形アンテナの湾曲主鏡面の中
心軸線を中心として回転可能に設置しうる回転ポールに
舟形アームを半径方向に張り出させ、該舟形アームに取
り付けた変位センサにより前記鏡面の精度を測定する装
置において、前記舟形アームに正規の鏡面の半径方向曲
線より一定寸法だけオフセットした辺を有する半径方向
の規準ゲージを組み付け、該規準ゲージの前記辺にアダ
プタ部材を宛てがうことにより前記変位センサの接触子
のゼロ値更正を行なえるようになしたパラボラ形アンテ
ナの鏡面測定装置が提供される。Means for Solving the Problems According to the present invention, a boat-shaped arm is extended in the radial direction from a rotating pole that can be installed rotatably about the central axis of a curved primary mirror surface of a parabolic antenna. In the apparatus for measuring the accuracy of the mirror surface using a displacement sensor attached to the boat, a radial reference gauge having a side offset by a certain dimension from the radial curve of the regular mirror surface is attached to the boat-shaped arm, and the side of the reference gauge is attached to the boat-shaped arm. A mirror surface measuring device for a parabolic antenna is provided, which allows zero value correction of the contactor of the displacement sensor by attaching an adapter member to the mirror surface of the parabolic antenna.
ｄ舛
第１図〜第３図を参照して本発明の実施例について説明
する。Embodiments of the present invention will be described with reference to FIGS. 1 to 3.
被測定アンテナ面である放物面などの湾曲主鏡面１ａを
有するパラボラ形アンテナ１は、昇降可能な支持手段２
によって定盤１１上の所定位置に設置される。支持手段
２は図には１個しか示していないが、アンテナｌの円周
方向に３ケ所設置されている。A parabolic antenna 1 having a curved main mirror surface 1a such as a paraboloid, which is the antenna surface to be measured, is supported by a support means 2 that can be raised and lowered.
is installed at a predetermined position on the surface plate 11. Although only one supporting means 2 is shown in the figure, three supporting means 2 are installed in the circumferential direction of the antenna l.
簡易精度測定治具２０は、その回転ポール２１が被測定
パラボラアンテナ１の鏡面１ａの中心線１ｂに一致する
ように支持部２２を介して定盤１１上に設置される。回
転ポール２１は支持部２２に回転可能に支承されている
と共に、図示しない回転手段により回転されるようにな
っている。回転ポール２１には半径方向に舟形のアーム
２３が張り出している。この舟形アーム２３は回転ポー
ル２１から半径方向にまっすぐ張り出した直進アーム部
分２３ａと、アンテナ鏡面に沿って延びる舟形アーム部
分２３ｂと、これらの両者を結合する補強部材２３Ｃと
で構成されている。The simple precision measuring jig 20 is installed on the surface plate 11 via the support part 22 so that its rotating pole 21 coincides with the center line 1b of the mirror surface 1a of the parabolic antenna 1 to be measured. The rotating pole 21 is rotatably supported by a support portion 22 and is rotated by a rotating means (not shown). A boat-shaped arm 23 projects from the rotating pole 21 in the radial direction. This boat-shaped arm 23 is composed of a rectilinear arm portion 23a extending straight from the rotating pole 21 in the radial direction, a boat-shaped arm portion 23b extending along the antenna mirror surface, and a reinforcing member 23C that connects both.
舟形アーム２３ （２３ｂ）には、正規のアンテナ鏡面
の半径方向の曲線と一致する曲線（辺）２４ａを有する
規準ゲージ２４が、この辺２４ａが前記正規のアンテナ
鏡面より一定寸法（１）だけ上方へオフセットするよう
に、取り付けられる。The boat-shaped arm 23 (23b) has a reference gauge 24 having a curve (side) 24a that matches the radial curve of the regular antenna mirror surface, and this side 24a is located above the regular antenna mirror surface by a certain dimension (1). Mounted in an offset manner.
また、この規準ゲージ２４には、第１図および第３図に
示すように、差動トランス取付用ブロック２６を介して
差動トランス２７のような変位センサが半径方向の数ケ
所の位置で取り付けられている。差動トランス２７の接
触子２７ａ （第３図）はパラボラアンテナ１の被測定
鏡面１ａに向ってで下方に延びている。Further, as shown in FIGS. 1 and 3, displacement sensors such as differential transformers 27 are attached to the reference gauge 24 at several positions in the radial direction via differential transformer mounting blocks 26. It is being A contact 27a (FIG. 3) of the differential transformer 27 extends downward toward the mirror surface 1a of the parabolic antenna 1 to be measured.
なお、規準ゲージ２４の辺２４ａが正規のアンテナ鏡面
に対して法線方向に一定間隔（１）を有するように設定
されている場合は、差動トランス２゛７の接触子２７ａ
（第３図）をアンテナの被測定鏡面ｌａに対して法線
方向に延ばすようにするのが望ましい。Note that when the side 24a of the reference gauge 24 is set to have a constant interval (1) in the normal direction to the regular antenna mirror surface, the contact 27a of the differential transformer 2'7
(FIG. 3) is preferably extended in the normal direction to the mirror surface la of the antenna to be measured.
差動トランス２７のゼロ値更正をするときは、第３図に
示すような簡単なアダプタ２８を差動トランス２７に対
応した位置にて位置決め用ノックピン２９を用いて規準
板ゲージ２４に組み付ける。When zeroing the differential transformer 27, a simple adapter 28 as shown in FIG. 3 is assembled to the reference plate gauge 24 at a position corresponding to the differential transformer 27 using a positioning knock pin 29.
このアダプタ２８は、規準板ゲージ２４の規準辺２４ａ
に当接する面２８ａを有すると共に、この面２８ａから
前記一定寸法（間隔）ｔだけ離れた面２８ｂを有し、差
動トランス２７の接触子２７ａの先端がこの面２８ｂに
接触する位置をゼロ値として更正するのである。This adapter 28 is connected to the reference side 24a of the reference plate gauge 24.
It has a surface 28a that comes into contact with this surface 28a, and a surface 28b that is spaced from this surface 28a by the predetermined distance (distance) t, and the position where the tip of the contactor 27a of the differential transformer 27 contacts this surface 28b is set to a zero value. It will be revised as follows.
被測定アンテナ鏡面１ａを測定する際は、アダプタ２８
を取外し、回転ポール２１および舟形アーム２３を適宜
回転させながら、差動トランス変位センサ２７によりそ
の鏡面１ａの精度を測定する。When measuring the mirror surface 1a of the antenna to be measured, use the adapter 28.
The differential transformer displacement sensor 27 measures the accuracy of the mirror surface 1a while rotating the rotary pole 21 and the boat-shaped arm 23 appropriately.
なお、この測定治具２０を、パラボラ形アンテナの設置
された現地まで運び、所定位置にセットして、現地にて
鏡面精度の測定をすることも可能である。また、第２図
に示すようなパラボラアンテナ１の組立前において、ア
ンテナ１を構成する１枚の扇形部片ＩＣごとに鏡面精度
を測定することも可能である。また、異なった曲面をを
するパラボラ形アンテナの鏡面精度の測定にあたっては
、規準板ゲージ２４およびアダプタ２８を取り替えるだ
けでよい。Note that it is also possible to carry this measurement jig 20 to the site where the parabolic antenna is installed, set it at a predetermined position, and measure the mirror surface accuracy at the site. Furthermore, before assembling the parabolic antenna 1 as shown in FIG. 2, it is also possible to measure the mirror surface accuracy of each fan-shaped piece IC constituting the antenna 1. Furthermore, when measuring the mirror surface accuracy of parabolic antennas having different curved surfaces, it is sufficient to simply replace the reference plate gauge 24 and the adapter 28.
発遭Ｉバ丸果
本発明によれば、従来のような更正原器を必要としない
ので、測定装置が小形化され、コストダウンが図られ、
差動トランス等の変位センサのゼロ値更正が簡単であり
、測定調整作業が簡単となり、測定作業の信頼性が向上
すると共に、パラボラ形アンテナの設置された現地での
測定作業も簡単に行なえるようになる。INDUSTRIAL APPLICABILITY According to the present invention, there is no need for a correction standard as in the past, so the measuring device can be downsized and costs can be reduced.
It is easy to zero-calibrate displacement sensors such as differential transformers, simplifying measurement adjustment work, improving the reliability of measurement work, and making it easy to perform measurement work on-site where parabolic antennas are installed. It becomes like this.
第１図は本発明のパラボラ形アンテナの鏡面測定装置の
第２図線！−Ｉにおける拡大側面断面図、第２図は測定
装置を含むパラボラ形アンテナの平面図、第３図は第１
図の線ｍ−ｍにおける拡大断面図、第４図および第５図
は従来のパラボラ形アンテナ鏡面測定装置の側面断面図
である。
１・・・パラボラ形アンテナ、
１ａ・・・アンテナ鏡面、
１ｂ・・・中心軸線、
２０・・・測定治具（装置）、
２１・・・回転ポール、
２３・・・舟形アーム、
２４・・・規準ゲージ、
２７・・・変位センサ（差動トランス）、２８・・・ア
ダプタ部材。Figure 1 is the second diagram of the parabolic antenna mirror surface measuring device of the present invention! -I is an enlarged side cross-sectional view, FIG. 2 is a plan view of the parabolic antenna including the measuring device, and FIG.
The enlarged sectional view taken along the line m--m in the figure, and FIGS. 4 and 5 are side sectional views of a conventional parabolic antenna mirror surface measuring device. DESCRIPTION OF SYMBOLS 1... Parabolic antenna, 1a... Antenna mirror surface, 1b... Central axis line, 20... Measuring jig (device), 21... Rotating pole, 23... Boat-shaped arm, 24... - Reference gauge, 27... Displacement sensor (differential transformer), 28... Adapter member.
Claims (1)
中心軸線（１ｂ）を中心として回転可能に設置しうる回
転ポール（２１）に舟形アーム（２３）を半径方向に張
り出させ、該舟形アームに取り付けた変位センサ（２７
）により前記鏡面の精度を測定する装置において、前記
舟形アーム（２３）に正規の鏡面の半径方向曲線により
一定寸法（ｔ）だけオフセットした辺（２４ａ）を有す
る半径方向の規準ゲージ（２４）を組み付け、該規準ゲ
ージの前記辺にアダプタ部材（２８）を宛てがうことに
より前記変位センサ（２７）の接触子（２７ａ）のゼロ
値更正を行なえるようになしたパラボラ形アンテナの鏡
面測定装置。1. A boat-shaped arm (23) is extended in the radial direction from a rotating pole (21) that can be installed rotatably around the central axis (1b) of the curved primary mirror surface (1a) of the parabolic antenna (1). Displacement sensor (27) attached to the boat-shaped arm
), the boat-shaped arm (23) is provided with a radial reference gauge (24) having a side (24a) offset by a certain dimension (t) from the radial curve of the regular mirror surface. A mirror surface measuring device for a parabolic antenna, in which the zero value of the contact (27a) of the displacement sensor (27) can be corrected by assembling and attaching an adapter member (28) to the side of the reference gauge. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1254385A JPS61172007A (en) | 1985-01-28 | 1985-01-28 | Mirror surface measuring apparatus of parabolic antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1254385A JPS61172007A (en) | 1985-01-28 | 1985-01-28 | Mirror surface measuring apparatus of parabolic antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61172007A true JPS61172007A (en) | 1986-08-02 |
| JPH045327B2 JPH045327B2 (en) | 1992-01-31 |
Family
ID=11808248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1254385A Granted JPS61172007A (en) | 1985-01-28 | 1985-01-28 | Mirror surface measuring apparatus of parabolic antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61172007A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059547A (en) * | 2010-10-18 | 2011-05-18 | 安徽博微长安电子有限公司 | Installing and regulating method and device of parabolic antenna sample plate |
| CN103363858A (en) * | 2013-07-19 | 2013-10-23 | 哈尔滨工业大学 | Large-diameter inflation warp-direction rib antenna detecting device |
| CN103776345A (en) * | 2013-09-06 | 2014-05-07 | 贵州振华天通设备有限公司 | Method and device for detecting sample plate of antenna primary side precision |
| CN112697092A (en) * | 2021-01-28 | 2021-04-23 | 哈尔滨工业大学 | Detection device and detection method for precision of inner profile of curved surface member |
-
1985
- 1985-01-28 JP JP1254385A patent/JPS61172007A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059547A (en) * | 2010-10-18 | 2011-05-18 | 安徽博微长安电子有限公司 | Installing and regulating method and device of parabolic antenna sample plate |
| CN103363858A (en) * | 2013-07-19 | 2013-10-23 | 哈尔滨工业大学 | Large-diameter inflation warp-direction rib antenna detecting device |
| CN103776345A (en) * | 2013-09-06 | 2014-05-07 | 贵州振华天通设备有限公司 | Method and device for detecting sample plate of antenna primary side precision |
| CN112697092A (en) * | 2021-01-28 | 2021-04-23 | 哈尔滨工业大学 | Detection device and detection method for precision of inner profile of curved surface member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH045327B2 (en) | 1992-01-31 |
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