JPH0112217Y2 - - Google Patents
Info
- Publication number
- JPH0112217Y2 JPH0112217Y2 JP1981061597U JP6159781U JPH0112217Y2 JP H0112217 Y2 JPH0112217 Y2 JP H0112217Y2 JP 1981061597 U JP1981061597 U JP 1981061597U JP 6159781 U JP6159781 U JP 6159781U JP H0112217 Y2 JPH0112217 Y2 JP H0112217Y2
- Authority
- JP
- Japan
- Prior art keywords
- crt
- magnets
- axis
- base point
- sweep
- 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.)
- Expired
Links
- 238000010894 electron beam technology Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 101000741289 Homo sapiens Calreticulin-3 Proteins 0.000 description 1
- 101000969621 Homo sapiens Monocarboxylate transporter 12 Proteins 0.000 description 1
- 102100021444 Monocarboxylate transporter 12 Human genes 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
Landscapes
- Radar Systems Or Details Thereof (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
レーダ装置において、掃引線基点とCRTの中
心を一致させる為の掃引線基点の補正装置の改良
に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a sweep line base point correction device for aligning the sweep line base point with the center of a CRT in a radar device.
レーダ装置でCRTに表示される掃引線の掃引
線基点は自船の位置を示している。掃引線基点が
CRTの中心からずれると、CRTと同心円上に設
けられた角度目盛の中心が掃引線基点と一致しな
くなり、物標の角度測定をした場合に、測定誤差
を生じることになる。
The base point of the sweep line displayed on the CRT by the radar device indicates the position of own ship. The sweep line base point is
If it deviates from the center of the CRT, the center of the angle scale provided on a concentric circle with the CRT will no longer match the base point of the sweep line, resulting in a measurement error when measuring the angle of the target.
一般にレーダ装置は地磁気の影響又はその他の
外部磁界によつてCRT２に表示を行なう掃引線
の掃引基点がCRTの中心からずれる。このずれ
は場所により又取付け方法によりその量が変化す
る。 Generally, in a radar device, the sweep reference point of the sweep line displayed on the CRT 2 deviates from the center of the CRT due to the influence of earth's magnetism or other external magnetic fields. The amount of this deviation varies depending on the location and installation method.
この為従来３つの方法が考えられている。 For this purpose, three methods have been considered in the past.
第１はCRTを磁気シールドする方法である。
これはパーマロイ等を使用する都合上高価であ
り、又完全に外部磁気をシールドすることは困難
であつた。 The first method is to magnetically shield the CRT.
This is expensive due to the use of permalloy, etc., and it is difficult to completely shield external magnetism.
第２はCRTのネツクを中心にしてネツクの回
りに被せてＸ、Ｙに配置した掃引線基点補正コイ
ルにそれぞれ電流を流して掃引線基点をCRTの
中心に一致させる方法がある。これは非常に高価
なものになる欠点があつた。 The second method is to align the sweep line base point with the center of the CRT by passing current through sweep line base point correction coils placed in the X and Y directions around the neck of the CRT. This had the disadvantage of being very expensive.
第３はCRTのネツクを中心にしてネツクの回
りに被せて磁石をＸ，Ｙに配置し、それぞれの磁
石を直接手で回転させて掃引線基点をCRTの中
心に合せる方法がある。これは航海中に掃引線基
点がずれた場合、レーダ装置のカバーをあけて操
作しなければいけない不便さがあつた。 The third method is to place magnets around the CRT neck in X and Y positions, and rotate each magnet directly by hand to align the sweep line base point with the center of the CRT. This had the inconvenience of having to open the cover of the radar device to operate it if the sweep line reference point shifted during the voyage.
上記第３の方法を、筐体の外側から操作できる
ようにしたツマミによつて回転するように構成す
れば、例えば、電源電圧の変化または航海地域の
変化による地磁気の影響の変化などによつて生ず
る上記の掃引基点のズレを補正できるようにする
ことが考えられるが、この方法では、こうした磁
石を回転するための歯車機構を、ネツク付近の高
電圧回路などが複雑に配置された部分に設けなく
てはならず、当然、高価なものにならざるを得な
いため、これを軽便安価なもに改良して提供する
ことが望まれているという問題点がある。
If the third method described above is configured to be rotated by a knob that can be operated from the outside of the casing, for example, it can be rotated by a change in the influence of geomagnetism due to a change in power supply voltage or a change in the voyage area. It may be possible to correct the deviation of the sweep reference point that occurs, but this method requires that the gear mechanism for rotating the magnet be installed in a part where high-voltage circuits etc. are complexly arranged near the network. The problem is that it is indispensable and, of course, expensive, so it is desired to improve it and provide it in a light and inexpensive way.
本考案は、上記の磁石を、CRTのネツクのＸ
軸上とＹ軸上とのネツクから離れた位置に配置
し、この各磁石を筐体の外側から操作できるツマ
ミによりフレキシブルシヤフトを介して回転する
構造を設けることによつて、上記の問題点を解決
し得るようにしたものである。
The present invention uses the above magnet as a CRT network.
The above problem can be solved by arranging the magnets at a position away from the connection between the axis and the Y axis, and by providing a structure in which each magnet is rotated via a flexible shaft by a knob that can be operated from the outside of the housing. It was designed to be solvable.
以下図面を用いて本考案を詳細に説明する。 The present invention will be explained in detail below using the drawings.
第１図は本考案の組立図であり、１はレーダ装
置の筐体であり２のCRTを５の仕切り板とで固
定している。４は掃引線を偏向させる為の偏向コ
イル、６はCRTネツク３のＸ軸上、また、７は
CRTネツク３のＹ軸上のCRTネツク３から離れ
た位置に配置した磁石であり、図のように、
CRT２のネツク３に対して独立して離れた箇所
に、それぞれ別個に位置づけて配置してある。外
部から操作しうる１０，１１のツマミを手で回す
ことにより、８，９のフレキシブルシヤフトを介
して６，７の磁石はそれぞれXZ面上、YZ面上を
回転させることができるように連絡してある。
６，７の磁石を回転させると、３のCRTネツク
内の電子ビームはフレミング左手の法則により偏
向され、掃引線基点を動かすことができる。１２
は１０，１１のツマミを固定する固定板である。 FIG. 1 is an assembly diagram of the present invention, in which 1 is a casing of a radar device, and a CRT 2 is fixed with a partition plate 5. 4 is a deflection coil for deflecting the sweep line, 6 is on the X axis of CRT network 3, and 7 is a deflection coil for deflecting the sweep line.
This is a magnet placed on the Y-axis of CRT network 3 at a position away from CRT network 3, as shown in the figure.
They are located independently and separately from the network 3 of the CRT 2. By manually turning knobs 10 and 11, which can be operated from the outside, magnets 6 and 7 are connected via flexible shafts 8 and 9 so that they can be rotated on the XZ plane and the YZ plane, respectively. There is.
When the magnets 6 and 7 are rotated, the electron beam in the CRT network 3 is deflected according to Fleming's left-hand rule, and the base point of the sweep line can be moved. 12
is a fixing plate that fixes knobs 10 and 11.
第２図はCRTの背面から５の仕切り板を見た
背面図である。第２図に示したように３のCRT
ネツクの中心を通りＸ軸上、Ｙ軸上に６，７の磁
石が設置出来るように、５の仕切り板に固定され
た１３，１４のフレキシブルシヤフト固定金具に
８，９のフレキシブルシヤフトを１５，１６のＥ
リングで固定し、１７，１８のビスで６，７の磁
石を８，９のフレキシブルシヤフトに固定する。 Figure 2 is a rear view of the partition plate 5 seen from the back of the CRT. 3 CRT as shown in Figure 2
The flexible shafts 8 and 9 are attached to the flexible shaft fixing brackets 13 and 14 fixed to the partition plate 5 so that the magnets 6 and 7 can be installed on the X-axis and Y-axis through the center of the net. 16 E
Fix it with a ring, and fix the magnets 6 and 7 to the flexible shafts 8 and 9 with screws 17 and 18.
従つて１０，１１のツマミが回転すると、８，
９のフレキシブルシヤフトが回転し６，７の磁石
はXZ面内、YZ面内で回転する。 Therefore, when the knobs 10 and 11 are rotated, 8,
The flexible shaft 9 rotates, and the magnets 6 and 7 rotate in the XZ plane and the YZ plane.
第３図は本考案の動作原理を示すもので、Ｚ−
Ｚで示すＺ軸はCRTネツク３の軸方向、つまり、
電子ビームの無偏向時の軸方向であり、また、Ｘ
−Ｘで示すＸ軸とＹ−Ｙで示すＹ軸とはそれぞれ
Ｚ軸に対して交叉する軸方向である。６，７の磁
石が第３図に示したような位置にある場合３の
CRTネツクには６の磁石の磁界−Hxと７の磁石
の磁界HYの合成磁界Ｈが加わり、フレミング左
手の法則によりCRTのビームが偏向する。尚６，
７の磁石がXZ面内、YZ面内で回転するとＸ軸方
向の磁界Hxは−HXから＋HXまでの値をとり、
同様にＹ軸方向の磁界Hyは−HYから＋HYまで値
が変化する。従つて合成磁界Ｈは回転するととも
に値も変化する。このことはCRT上の掃引基点
が１０，１１のツマミで移動出来ることになり、
地磁気等の外部磁界によつて生じる掃引基点のず
れの量を補正し、CRTの中心に掃引基点を一致
させる事ができる。 Figure 3 shows the operating principle of the present invention.
The Z axis indicated by Z is the axial direction of CRT network 3, that is,
This is the axial direction of the electron beam when it is not deflected, and
The X-axis indicated by -X and the Y-axis indicated by Y-Y are axial directions that intersect with the Z-axis. When magnets 6 and 7 are in the position shown in Figure 3,
A composite magnetic field H of the magnetic field -Hx of magnet No. 6 and magnetic field H Y of magnet No. 7 is applied to the CRT network, and the CRT beam is deflected according to Fleming's left-hand rule. Sho 6,
When magnet 7 rotates in the XZ plane and YZ plane, the magnetic field Hx in the X-axis direction takes a value from -H X to +H X ,
Similarly, the value of the magnetic field Hy in the Y-axis direction changes from -H Y to +H Y. Therefore, the value of the composite magnetic field H changes as it rotates. This means that the sweep base point on the CRT can be moved using knobs 10 and 11.
It is possible to correct the amount of shift in the sweep base point caused by external magnetic fields such as earth's magnetism, and align the sweep base point with the center of the CRT.
このように本考案によれば、外部から操作しう
る１０，１１のツマミを回転することにより、
８，９のフレキシブルシヤフトに固定された６，
７の磁石が３のCRTネツクのXZ面内、YZ面内
で回転し、CRT２に表示を行なう掃引線の掃引
基点をCRTの中心に一致することが容易にでき
るとともに、各磁石６，７がCRT２のネツク３
に対して独立して離れた箇所に、それぞれ別個に
位置づけて配置してあるため、偏向コイル４およ
びCRTネツクの端末側にあるヒーター用・電子
銃用の電極端子などのような高電圧のかかる場所
に配置する必要がなくなり、操作も構造も高電圧
に対する絶縁を考慮せずに配置しても安全を確保
できるので、構造を安価にすることができるなど
の特長がある。
In this way, according to the present invention, by rotating the knobs 10 and 11 that can be operated from the outside,
6, fixed to the flexible shaft of 8,9.
The magnet 7 rotates in the XZ plane and YZ plane of the CRT network 3, making it easy to match the sweep base point of the sweep line displayed on the CRT 2 with the center of the CRT. CRT2 network 3
Because they are located independently and separately from each other, high voltage is applied to the deflection coil 4 and electrode terminals for heaters and electron guns on the terminal side of the CRT network. There is no need to place the device in a specific location, and safety can be ensured even when the device is placed without considering high-voltage insulation in terms of operation and structure, so the structure can be made inexpensive.
第１図は本考案の組立斜視図、第２図は背面
図、第３図は動作原理を示す。
１……筐体、２……CRT、３……CRTネツ
ク、４……偏向コイル、５……仕切り板、６……
磁石、７……磁石、８……フレキシブルシヤフ
ト、９……フレキシブルシヤフト、１０……ツマ
ミ、１１……ツマミ、１２……固定板、１３……
フレキシブルシヤフト固定金具、１４……フレキ
シブルシヤフト固定金具、１５……Ｅリング、１
６……Ｅリング、１７……ビス、１８……ビス。
Fig. 1 is an assembled perspective view of the present invention, Fig. 2 is a rear view, and Fig. 3 shows the principle of operation. 1... Housing, 2... CRT, 3... CRT network, 4... Deflection coil, 5... Partition plate, 6...
Magnet, 7... Magnet, 8... Flexible shaft, 9... Flexible shaft, 10... Knob, 11... Knob, 12... Fixed plate, 13...
Flexible shaft fixing metal fitting, 14...Flexible shaft fixing metal fitting, 15...E ring, 1
6...E ring, 17...screw, 18...screw.
Claims (1)
できるようにした２つの磁石を設けることによ
り、前記電子ビームによる掃引線の掃引基点を補
正し得るようにした掃引線基点の補正装置におい
て、 ａ 前記電子ビームの軸方向をＺ軸として、この
Ｚ軸とそれぞれ交叉するＸ軸方向とＹ軸方向と
であつて、前記CRTのネツクに対して独立し
て離れた箇所に、前記磁石をそれぞれ別個に位
置づけて配置する補正用磁石配置手段と、 ｂ 前記磁石のそれぞれを回転するための各ツマ
ミを筐体の外側に設け、この各ツマミと前記磁
石のそれぞれとをフレキシブルシヤフトで連結
する回転連結手段と を具備することを特徴とする補正装置。[Claims for Utility Model Registration] A sweep line base point that can correct the sweep base point of the sweep line caused by the electron beam by providing two magnets that can change the magnetic field applied to the electron beam of the CRT. In the correction device, a. With the axial direction of the electron beam as the Z-axis, the X-axis direction and the Y-axis direction intersect with the Z-axis, respectively, and at locations independently and distant from the neck of the CRT. , correction magnet arrangement means for positioning and arranging each of the magnets separately; b. knobs for rotating each of the magnets are provided on the outside of the casing, and each of the knobs and each of the magnets is connected to a flexible shaft; A correction device characterized by comprising: rotational coupling means for coupling with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981061597U JPH0112217Y2 (en) | 1981-04-30 | 1981-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981061597U JPH0112217Y2 (en) | 1981-04-30 | 1981-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57175072U JPS57175072U (en) | 1982-11-05 |
| JPH0112217Y2 true JPH0112217Y2 (en) | 1989-04-10 |
Family
ID=29857833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981061597U Expired JPH0112217Y2 (en) | 1981-04-30 | 1981-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0112217Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4931503U (en) * | 1972-06-19 | 1974-03-19 |
-
1981
- 1981-04-30 JP JP1981061597U patent/JPH0112217Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4931503U (en) * | 1972-06-19 | 1974-03-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57175072U (en) | 1982-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4016827A (en) | Magnetically coupled indicator means for control setting | |
| US4646007A (en) | Tachometer indicator with uncompensated magnetic return to zero | |
| JPH0112217Y2 (en) | ||
| US5004976A (en) | Wye winding radial air-core gauge system | |
| US2403091A (en) | Compass control system | |
| US2456171A (en) | Electrical measuring instrument | |
| US5038099A (en) | Radial air-core gauge | |
| US2651010A (en) | Harmonic error compensator | |
| US3995214A (en) | Movable magnet meter having rotation compensating means | |
| US3010067A (en) | Dual electrical instrument | |
| US2440535A (en) | Double concentric air gap perma | |
| US2570826A (en) | Error compensator | |
| JPH0328382Y2 (en) | ||
| US4208628A (en) | Measuring mechanism having a positive locking arrangment for wide-angle moving coil systems and method for its assembly | |
| US2399885A (en) | Compass system | |
| US2703400A (en) | Compensated plan position indicator | |
| JPH076606Y2 (en) | Deflection yoke device | |
| JP2534526Y2 (en) | Eccentric cross coil meter | |
| JPS5816703B2 (en) | Moving magnet type instrument | |
| JPS6217714Y2 (en) | ||
| JPS5854706Y2 (en) | electric meter | |
| USRE21156E (en) | oakley | |
| US2912864A (en) | Directional gyro having an improved torquing device for compensating for error due to the earth's rotation | |
| JPH0216288Y2 (en) | ||
| JPH0714904Y2 (en) | Instrument movement |