JPH0658969A - Three-dimensional jamming measuring apparatus - Google Patents
Three-dimensional jamming measuring apparatusInfo
- Publication number
- JPH0658969A JPH0658969A JP21388292A JP21388292A JPH0658969A JP H0658969 A JPH0658969 A JP H0658969A JP 21388292 A JP21388292 A JP 21388292A JP 21388292 A JP21388292 A JP 21388292A JP H0658969 A JPH0658969 A JP H0658969A
- Authority
- JP
- Japan
- Prior art keywords
- wiring board
- printed wiring
- dimensional
- magnetic field
- noise
- 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.)
- Pending
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、不要輻射の多い電子部
品が実装されたプリント配線板のノイズ発生源を測定す
るために用いられる電磁妨害測定装置(electromagneti
c interference:以下、EMI測定装置と記す)に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic interference measuring device (electromagneti) used for measuring a noise source of a printed wiring board on which electronic components with a lot of unwanted radiation are mounted.
c interference: hereinafter referred to as an EMI measuring device).
【0002】[0002]
【従来の技術】図3は、従来のEMI妨害測定装置の斜
視図である。従来のEMI妨害測定装置は、プリント配
線板3を垂直方向のみのコイル巻線10を有する構造と
なっている妨害測定用アンテナ3にセットし、以下図面
を参照しながら、従来のEMI妨害測定装置の一例につ
いて説明する。2. Description of the Related Art FIG. 3 is a perspective view of a conventional EMI interference measuring device. In the conventional EMI disturbance measuring apparatus, the printed wiring board 3 is set in the disturbance measuring antenna 3 having a structure having a coil winding 10 only in the vertical direction, and the conventional EMI disturbance measuring apparatus will be described below with reference to the drawings. An example will be described.
【0003】図3に示すように、9は妨害測定用アンテ
ナである。10は垂直コイルである2は妨害測定器であ
る。垂直コイル10は、妨害測定用アンテナの内部のプ
リント配線板上の各層に設けられたパタ−ンをスル−ホ
−ルにより電気的導通を確保することにより形成され
る。垂直コイル10により不要輻射の多い電子部品が実
装されたプリント配線板の磁界を検知することが可能と
なる。妨害測定用アンテナ9を妨害測定器2に接続する
ことによって、ノイズを測定することが可能となる。こ
れより、妨害測定用アンテナ9の範囲内のサイズのプリ
ント配線板であれば、X−Y方向の平面的な電磁妨害測
定が可能となる。As shown in FIG. 3, 9 is an interference measuring antenna. Reference numeral 10 is a vertical coil, and 2 is an interference measuring instrument. The vertical coil 10 is formed by ensuring electrical conduction by a through hole of a pattern provided in each layer on the printed wiring board inside the interference measuring antenna. The vertical coil 10 makes it possible to detect the magnetic field of a printed wiring board on which electronic components with a large amount of unwanted radiation are mounted. The noise can be measured by connecting the interference measuring antenna 9 to the interference measuring device 2. As a result, if the printed wiring board has a size within the range of the interference measurement antenna 9, it is possible to perform planar electromagnetic interference measurement in the XY directions.
【0004】[0004]
【発明が解決しようとする課題】しかしながら上記の従
来の構成では、不要輻射の多い電子部品が実装されたプ
リント配線板のノイズ発生源を測定する際、プリント配
線板に対してX−Y方向の平面的な不要輻射によるノイ
ズしか測定できないという問題点を有していた。However, in the above-mentioned conventional configuration, when measuring the noise source of the printed wiring board on which the electronic components with a large amount of unwanted radiation are mounted, the noise source in the XY direction is measured with respect to the printed wiring board. There is a problem in that only noise due to planar unwanted radiation can be measured.
【0005】本発明は上記従来の問題点を解決するもの
で、不要輻射の多い電子部品が実装されたプリント配線
板に対してX−Y平面のみならず、裏、表両方含めたZ
方向すなわち3次元のノイズを測定することができるE
MI測定装置を提供するものである。The present invention solves the above-mentioned problems of the prior art. For a printed wiring board on which electronic components with a large amount of unwanted radiation are mounted, not only the XY plane but also the Z including both the front and the back.
E that can measure directional or three-dimensional noise
An MI measuring device is provided.
【0006】[0006]
【課題を解決するための手段】この目的を達成するため
に本発明のEMI測定装置は、3次元のX−Y−Zテ−
ブルにプリント配線板を位置がずれないようにセットし
て、不要輻射の磁界の強度分布を測定する構成を有して
いる。表側を測定したデ−タをメモリに格納し次に裏側
を測定する。これにより、不要輻射の多い電子部品が実
装されたプリント配線板のノイズ発生源を裏、表二回に
分けて測定することにより、3次元分布を測定すること
が可能となる。In order to achieve this object, the EMI measuring device of the present invention uses a three-dimensional XYZ table.
The printed wiring board is set so that its position does not shift, and the intensity distribution of the magnetic field of unwanted radiation is measured. The data measured on the front side is stored in the memory, and then the back side is measured. This makes it possible to measure the three-dimensional distribution by measuring the noise generation source of the printed wiring board on which the electronic component with a large amount of unwanted radiation is mounted, separately on the back and front.
【0007】[0007]
【作用】本発明によるEMI妨害測定装置は、以下の効
果がある。不要輻射の多い電子部品が実装されたプリン
ト配線板のノイズ発生源を測定する際、プリント配線板
に対してX−Y平面に加えて、裏表までを含めたZ方向
の不要輻射によるノイズも測定ことができる。これによ
り従来あまり問題とされていなかったプリント配線板に
対して、プリント配線板周辺の3次元的な不要輻射によ
るノイズの電気回路に及ぼす影響を検討することがで
き、妨害対策の効率化を図ることができる。The EMI interference measuring device according to the present invention has the following effects. When measuring the noise source of a printed wiring board on which electronic components with a lot of unwanted radiation are mounted, measure the noise due to unwanted radiation in the Z direction including the front and back sides in addition to the XY plane for the printed wiring board. be able to. As a result, it is possible to study the effect of noise due to three-dimensional unwanted radiation around the printed wiring board on the electric circuit, which has not been a problem in the past, and to improve the efficiency of interference countermeasures. be able to.
【0008】[0008]
【実施例】以下に、本発明の実施例について、図面を参
照にしながら説明する。Embodiments of the present invention will be described below with reference to the drawings.
【0009】図1は、X−Y−Z駆動テ−ブル(4〜
6)の上に、不要輻射の多い電子部品が実装されたプリ
ント配線板3の位置決め用の穴7にX駆動テ−ブル4に
設けられたパイロットピン8を挿入してプリント配線板
3の位置がずれなうように載せて、プリント配線板3の
上方から近磁界プロ−ブ1でノイズを測定している装置
全体のシステムを表したものである。FIG. 1 shows an XYZ drive table (4 to 4).
The position of the printed wiring board 3 is obtained by inserting the pilot pin 8 provided on the X drive table 4 into the positioning hole 7 of the printed wiring board 3 on which electronic components with a lot of unwanted radiation are mounted. 1 shows the system of the entire apparatus in which the noise is measured from above the printed wiring board 3 by the near magnetic field probe 1 so that the noise is not displaced.
【0010】近磁界プロ−ブ1は妨害測定器2と接続さ
れていて、ノイズを測定できるようになっている。X−
Y−Z駆動テ−ブルは、Z方向駆動テ−ブル6の上にY
方向駆動テ−ブル5を載せて、さらにその上にX方向駆
動テ−ブル4を載せた構造となっている。原点位置にセ
ットした状態で、X−Y−Z駆動テ−ブル(4〜6)の
上に、不要輻射の多い電子部品が実装されたプリント配
線板3を載せて、プリント配線板3の上方から近磁界プ
ロ−ブ1でノイズを測定する。X−Y−Z駆動テ−ブル
(4〜6)をX方向、Y方向、Z方向に動かすことによ
って、プリント配線板3から発生する不要輻射によるノ
イズの3次元的分布を測定することが可能となる。The near magnetic field probe 1 is connected to the disturbance measuring device 2 so that noise can be measured. X-
The Y-Z drive table is placed on the Z-direction drive table 6 in the Y direction.
The directional drive table 5 is placed, and the X-direction drive table 4 is placed on the directional drive table 5. With the printed wiring board 3 on which electronic components with a lot of unwanted radiation are mounted is placed on the XYZ drive table (4 to 6) in a state where the printed wiring board 3 is set at the origin position and above the printed wiring board 3. To measure the noise with the near magnetic field probe 1. By moving the XYZ drive table (4-6) in the X, Y, and Z directions, it is possible to measure the three-dimensional distribution of noise due to unnecessary radiation generated from the printed wiring board 3. Becomes
【0011】[0011]
【発明の効果】以上のように本発明によるEMI測定装
置は、プリント配線板に対してX−Y平面に加えて、裏
表を含めたZ方向の3次元的な不要輻射によるノイズも
測定ことができるので、不要輻射によるノイズが、電気
回路に及ぼす影響を効率的に発見することができ、更に
製品の信頼性向上とノイズ測定時間の短縮を実現できる
ものである。As described above, the EMI measuring apparatus according to the present invention can measure noise due to three-dimensional unwanted radiation in the Z direction including the front and back sides in addition to the XY plane for the printed wiring board. Therefore, it is possible to efficiently find the influence of noise due to unnecessary radiation on the electric circuit, and further improve the reliability of the product and shorten the noise measurement time.
【図1】本発明の実施例1におけるEMI測定装置の斜
視図FIG. 1 is a perspective view of an EMI measuring device according to a first embodiment of the present invention.
【図2】従来のEMI測定装置の斜視図FIG. 2 is a perspective view of a conventional EMI measuring device.
1 近磁界プロ−ブ 2 妨害測定器 3 プリント配線板 4 X方向駆動テ−ブル 5 Y方向駆動テ−ブル 6 Z方向駆動テ−ブル 7 プリント配線板の位置決め用穴 8 パイロットピン 1 Near magnetic field probe 2 Interference measuring device 3 Printed wiring board 4 X-direction drive table 5 Y-direction drive table 6 Z-direction drive table 7 Positioning hole for printed wiring board 8 Pilot pin
Claims (1)
ら発生する不要輻射の磁界を3次元的に検知するため、
3次元のX−Y−Zテ−ブルにプリント配線板をセット
して、プリント配線板の上方から近磁界プロ−ブにより
不要輻射の磁界の強度分布を測定し、そのデ−タを計測
器の中でメモリに格納し、次にプリント配線板を反転さ
せて同様の測定を行い、メモリの内容を呼び出すことに
よって、裏表の不要輻射の磁界の強度分布を測定するこ
とが可能な電磁妨害測定装置。1. A magnetic field of unnecessary radiation generated from a printed wiring board on which electronic components are mounted is three-dimensionally detected,
The printed wiring board is set on the three-dimensional XYZ table, the intensity distribution of the magnetic field of unnecessary radiation is measured from above the printed wiring board by the near magnetic field probe, and the data is measured. Electromagnetic interference measurement in which the intensity distribution of the magnetic field of the unwanted radiation on the front and back sides can be measured by storing it in a memory in the memory, then reversing the printed wiring board to perform the same measurement and recalling the contents of the memory apparatus.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21388292A JPH0658969A (en) | 1992-08-11 | 1992-08-11 | Three-dimensional jamming measuring apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21388292A JPH0658969A (en) | 1992-08-11 | 1992-08-11 | Three-dimensional jamming measuring apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0658969A true JPH0658969A (en) | 1994-03-04 |
Family
ID=16646585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21388292A Pending JPH0658969A (en) | 1992-08-11 | 1992-08-11 | Three-dimensional jamming measuring apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0658969A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6147482A (en) * | 1997-06-26 | 2000-11-14 | Fuji Xerox Co., Ltd. | Method for and apparatus of detecting and displaying radiated noise |
US6184693B1 (en) | 1997-12-04 | 2001-02-06 | Kyodo Kumiai Joint-Labo Sendai | Electromagnetic noise measurement apparatus |
US6901656B2 (en) * | 2000-10-27 | 2005-06-07 | Mirae Corporation | Position control apparatus of feeder stage in surface mount device |
JP2015227844A (en) * | 2014-06-02 | 2015-12-17 | 日本電信電話株式会社 | Noise measurement device and noise measurement method |
-
1992
- 1992-08-11 JP JP21388292A patent/JPH0658969A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6147482A (en) * | 1997-06-26 | 2000-11-14 | Fuji Xerox Co., Ltd. | Method for and apparatus of detecting and displaying radiated noise |
US6184693B1 (en) | 1997-12-04 | 2001-02-06 | Kyodo Kumiai Joint-Labo Sendai | Electromagnetic noise measurement apparatus |
US6901656B2 (en) * | 2000-10-27 | 2005-06-07 | Mirae Corporation | Position control apparatus of feeder stage in surface mount device |
JP2015227844A (en) * | 2014-06-02 | 2015-12-17 | 日本電信電話株式会社 | Noise measurement device and noise measurement method |
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