JPH04337475A - Method for measuring shielding performance of electromagnetic shield room - Google Patents
Method for measuring shielding performance of electromagnetic shield roomInfo
- Publication number
- JPH04337475A JPH04337475A JP13828291A JP13828291A JPH04337475A JP H04337475 A JPH04337475 A JP H04337475A JP 13828291 A JP13828291 A JP 13828291A JP 13828291 A JP13828291 A JP 13828291A JP H04337475 A JPH04337475 A JP H04337475A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic
- shield room
- antenna
- measuring device
- electromagnetic shield
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、電磁シールドルーム等
の電磁波の遮断性能を調べるために用いられる電磁シー
ルドルームの遮断性能の測定方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the shielding performance of an electromagnetic shield room, which is used to examine the shielding performance of an electromagnetic shield room.
【０００２】0002
【従来の技術】従来、電磁シールドルームは、現地で確
実に組立られれば設計値通りの性能を有するが、電磁シ
ールドルームを構成する外壁と成るパネルの接合、ドア
の取付け等の接合が適切に行なわれていないと、その接
合不良部分から電磁波が電磁シールドルーム内へ漏洩し
電磁波の遮断性能を低下させる。そこで、従来、電磁シ
ールドルームを現地で組立た後、電磁シールドルームの
性能を確認するために、専用の電磁波測定器を使用して
調べていた。[Prior Art] Conventionally, electromagnetic shielded rooms have the performance as designed if they are reliably assembled on-site, but if the panels that make up the outer walls of the electromagnetic shielded room are joined properly, and the doors are installed, etc. If this is not done, electromagnetic waves will leak into the electromagnetic shield room from the defective joint, reducing the electromagnetic wave blocking performance. Therefore, conventionally, after assembling an electromagnetic shield room on-site, a special electromagnetic wave measuring instrument was used to check the performance of the electromagnetic shield room.
【０００３】0003
【発明が解決しようとする課題】しかし、電磁シールド
ルームの電磁波の遮断性能を確認するために用いる専用
の電磁波測定器は高価であると共に、専用の電磁波測定
器を用いた測定作業は煩雑で、作業方法を修得するにも
かなりの時間を要した。[Problem to be solved by the invention] However, the dedicated electromagnetic wave measuring device used to check the electromagnetic wave blocking performance of an electromagnetic shield room is expensive, and the measurement work using the dedicated electromagnetic wave measuring device is complicated. It took a considerable amount of time to learn how to work.
【０００４】本発明は、上記事情に鑑み、電磁シールド
ルームの組立精度を確認する費用を安価にし、作業方法
の修得が容易である電磁シールドルームの遮断性能の測
定方法を提供することを目的とする。[0004] In view of the above circumstances, an object of the present invention is to provide a method for measuring the interrupting performance of an electromagnetic shielding room, which reduces the cost of confirming the assembly accuracy of an electromagnetic shielding room, and which makes it easy to learn the working method. do.
【０００５】[0005]
【課題を解決するための手段】即ち、本発明は、空中線
（１１）を有し、前記空中線（１１）に、該空中線（１
１）が受信した電波を検波増幅し得る受信手段（１５）
を接続して設け、前記受信手段（１５）に、該受信手段
（１５）が増幅した電波の強度を表示し得る計測手段（
１６、１７）を設けて構成した電磁波測定装置（１０）
を用い、電磁シールドルーム（１）の内外で放送局（３
０）から送信される放送電波（３１）を前記電磁波測定
装置（１０）により測定し、前記測定した値を設計基準
値と比較して前記電磁シールドルーム（１）のシールド
性能を測定するようにして構成される。[Means for Solving the Problems] That is, the present invention has an antenna (11), and the antenna (11) is connected to the antenna (11).
Receiving means (15) capable of detecting and amplifying the radio waves received by 1)
is connected to the receiving means (15), and a measuring means (15) capable of displaying the intensity of the radio waves amplified by the receiving means (15).
Electromagnetic wave measuring device (10) configured by providing 16, 17)
broadcasting station (3) inside and outside the electromagnetic shield room (1).
0) is measured by the electromagnetic wave measurement device (10), and the measured value is compared with a design standard value to measure the shielding performance of the electromagnetic shield room (1). It consists of
【０００６】なお、括弧内の番号等は、図面における対
応する要素を示す便宜的なものであり、従って、本記述
は図面上の記載に限定拘束されるものではない。以下の
「作用」の欄についても同様である。[0006] The numbers in parentheses are for convenience to indicate corresponding elements in the drawings, and therefore, the present description is not limited to the descriptions in the drawings. The same applies to the "effect" column below.
【０００７】[0007]
【作用】上記した構成により、本発明は、送信される電
波として放送局（３０）の放送電波（３１）が使用でき
るように作用する。また、電磁波測定装置（１０）が、
取り扱い易いように作用する。[Operation] With the above-described configuration, the present invention operates so that the broadcast radio wave (31) of the broadcasting station (30) can be used as the radio wave to be transmitted. Further, the electromagnetic wave measuring device (10)
It works to make it easier to handle.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面に基づき説明す
る。図１は、本発明による電磁シールドルームの遮断性
能の測定方法を示す図、図２は、本発明による電磁波測
定装置を示す図である。Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. FIG. 1 is a diagram showing a method for measuring the shielding performance of an electromagnetic shield room according to the present invention, and FIG. 2 is a diagram showing an electromagnetic wave measuring device according to the present invention.
【０００９】本発明に用いられる電磁波測定装置１０は
、図２に示すように、棒状のアンテナ１１を有しており
、アンテナ１１の先端には、特定方向のラジオの電波を
受信し得るコイルから成るコイル１３が設けられている
。アンテナ１１の後方（図中下方）には、アンテナ１１
の頭部１１ａを受信方向とするように受信方向以外から
電波がアンテナ１１に入力することを防ぐ形で角形のお
わん状のカバーガード１２が設けられている。また、ア
ンテナ１１には、受信した電波のうち特定の電波を検波
増幅する電波受信部１５が接続して設けられており、電
波受信部１５には、該増幅された電波を電流値として測
定し表示部１７に表示し得る感度計測部１６が接続して
設けられている。即ち、電波受信部１５は、ラジオ等の
汎用部品から成り、感度計測部１６は、電流計等の汎用
部品から成る。ところで、本装置１０を用いて測定を行
なう対象は、図１に示すような電磁シールドルーム１で
あり、電磁シールドルーム１は、複数のパネル２及びド
ア３を組合せた直方体状の部屋から成る。パネル２は、
電磁波を遮断する性能を有する四角い板状の部材から成
り、接合部２ａを介してパネル２同志を接合し組立られ
ている。ドア３は、電磁波を遮断する性能を有する四角
い板状の部材から成り、取付け部３ａを介してパネル２
に取付けられている。また、ドア３には、ドアノブ４が
ドア３を開閉し得る形で設けられている。The electromagnetic wave measuring device 10 used in the present invention has a rod-shaped antenna 11, as shown in FIG. A coil 13 is provided. Behind the antenna 11 (lower in the figure), the antenna 11
A rectangular bowl-shaped cover guard 12 is provided to prevent radio waves from being input to the antenna 11 from directions other than the receiving direction so that the head 11a of the antenna is in the receiving direction. Further, the antenna 11 is connected with a radio wave receiving section 15 that detects and amplifies specific radio waves among the received radio waves, and the radio wave receiving section 15 measures the amplified radio waves as a current value. A sensitivity measuring section 16 that can be displayed on a display section 17 is connected and provided. That is, the radio wave receiving section 15 is made of a general-purpose component such as a radio, and the sensitivity measuring section 16 is made of a general-purpose component such as an ammeter. By the way, the object to be measured using the present device 10 is an electromagnetically shielded room 1 as shown in FIG. Panel 2 is
It is made of a square plate-like member that has the ability to block electromagnetic waves, and is assembled by joining panels 2 together via joints 2a. The door 3 is made of a square plate-like member that has the ability to block electromagnetic waves, and is attached to the panel 2 through the mounting part 3a.
installed on. Further, the door 3 is provided with a doorknob 4 that can open and close the door 3.
【００１０】本発明は、以上のような構成を有するので
、図１に示すように、電磁波測定装置１０は、図中左方
に位置するラジオ局３０から送信された特定の電波であ
るラジオ電波３１を電磁波測定装置１０のアンテナ１１
で受信し、該受信した電波の強度を感度計測部１６及び
表示部１７により電流値に換算した形で知ることができ
る。ここで、ラジオ局３０から充分離れた地点に位置す
る電磁シールドルーム１の周辺におけるラジオ電波３１
の強度は均一であると考えられる。そこで、電磁シール
ドルーム１の外におけるラジオ電波３１の強度を電磁波
測定装置１０（図中２点鎖線で示す）で測定し、該測定
した値を基準値とする。そして、同様に、電磁シールド
ルーム１内でラジオ電波３１の強度を電磁波測定装置１
０で測定する。例えば、パネル２とドア３の取付け部３
ａに電磁波測定装置１０（図中実線で示す）のアンテナ
頭部１０ａを向けて（図中破線矢印で示す）取付け部３
ａから漏洩する電波を測定する。従って、接合部２ａ、
取付け部３ａ等から漏洩する電波を測定し、前記基準値
と比較することにより、パネル２の組立、ドア３の取付
けが良好に行なわれているかを調べることができる。即
ち、該電磁波測定装置１０を用いて確実に組立られた電
磁シールドルーム１の内外の電波感度の比を事前に調べ
ておき、設計基準値とし、現地での電磁シールドルーム
１組立後の測定結果と前記設計基準値とを比較して、組
立方の良否を判断することにより、電磁シールドルーム
１の現地組立を完全なものにすることができる。
また、構成部品は汎用部品が使用でき構成部品数が少な
いので、電磁波測定装置１０を安価に製作することがで
きる。[0010] Since the present invention has the above-described configuration, as shown in FIG. 31 is the antenna 11 of the electromagnetic wave measuring device 10
The intensity of the received radio wave can be determined by converting it into a current value using the sensitivity measuring section 16 and the display section 17. Here, radio waves 31 in the vicinity of the electromagnetic shield room 1 located at a sufficiently distant point from the radio station 30
The intensity is considered to be uniform. Therefore, the intensity of the radio waves 31 outside the electromagnetic shield room 1 is measured by an electromagnetic wave measuring device 10 (indicated by a two-dot chain line in the figure), and the measured value is taken as a reference value. Similarly, the electromagnetic wave measurement device 1 measures the intensity of the radio waves 31 in the electromagnetic shield room 1.
Measure at 0. For example, the mounting part 3 of panel 2 and door 3
With the antenna head 10a of the electromagnetic wave measuring device 10 (indicated by the solid line in the figure) directed toward a (indicated by the broken line arrow in the figure), attach the mounting part 3
Measure the radio waves leaking from a. Therefore, the joint 2a,
By measuring the radio waves leaking from the attachment portion 3a etc. and comparing it with the reference value, it is possible to check whether the panel 2 is properly assembled and the door 3 is properly attached. That is, the ratio of the radio sensitivity inside and outside of the electromagnetic shield room 1 that has been reliably assembled using the electromagnetic wave measuring device 10 is investigated in advance, and this is taken as the design standard value, and the measurement results after the electromagnetic shield room 1 is assembled on-site are determined. The on-site assembly of the electromagnetic shielding room 1 can be completed by comparing the above design reference values and determining the quality of the assembly method. Moreover, since general-purpose parts can be used for the components and the number of components is small, the electromagnetic wave measuring device 10 can be manufactured at low cost.
【００１１】[0011]
【発明の効果】以上説明したように、本発明は、アンテ
ナ１１等の空中線を有し、前記空中線に、該空中線が受
信した電波を検波増幅し得る電波受信部１５等の受信手
段を接続して設け、前記受信手段に、該受信手段が増幅
した電波の強度を表示し得る感度計測部１６、表示部１
７等の計測手段を設けて構成した電磁波測定装置１０を
用い、電磁シールドルーム１の内外でラジオ局３０等の
放送局から送信されるラジオ電波３１等の放送電波を前
記電磁波測定装置１０により測定し、前記測定した値を
設計基準値と比較して前記電磁シールドルーム１のシー
ルド性能を測定するようにして構成したので、送信され
る電波として放送局の放送電波を用い、安価な電磁波測
定装置を用いたので、電磁シールドルームの組立精度を
確認する費用を安価にすることができる。また、電磁波
測定装置の取り扱いが容易なので、作業方法の修得が容
易である。As explained above, the present invention has an antenna such as an antenna 11, and a receiving means such as a radio wave receiving unit 15 that can detect and amplify radio waves received by the antenna is connected to the antenna. a sensitivity measuring section 16 and a display section 1, which are provided on the receiving means and capable of displaying the intensity of the radio waves amplified by the receiving means;
Using the electromagnetic wave measuring device 10 configured with measuring means such as No. However, since the shielding performance of the electromagnetic shield room 1 is measured by comparing the measured value with the design standard value, the electromagnetic wave measuring device is an inexpensive electromagnetic wave measuring device that uses the broadcast radio waves of the broadcasting station as the radio waves to be transmitted. Since this method is used, it is possible to reduce the cost of confirming the assembly accuracy of the electromagnetic shield room. In addition, since the electromagnetic wave measuring device is easy to handle, it is easy to learn how to operate it.
【図１】図１は、本発明による電磁シールドルームの遮
断性能の測定方法を示す図である。FIG. 1 is a diagram showing a method for measuring the interrupting performance of an electromagnetic shielding room according to the present invention.
【図２】図２は、本発明による電磁波測定装置を示す図
である。FIG. 2 is a diagram showing an electromagnetic wave measuring device according to the present invention.
１……電磁シールドルーム １０……電磁波測定装置 １１……空中線（アンテナ） １５……受信手段（電波受信部） １６……計測手段（感度計測部） １７……計測手段（表示部） ３０……放送局（ラジオ局） ３１……放送電波（ラジオ電波） 1... Electromagnetic shield room 10... Electromagnetic wave measuring device 11...Aerial (antenna) 15... Receiving means (radio wave receiving section) 16...Measuring means (sensitivity measuring section) 17...Measuring means (display section) 30...Broadcasting station (radio station) 31...Broadcast waves (radio waves)
Claims (1)
線が受信した電波を検波増幅し得る受信手段を接続して
設け、前記受信手段に、該受信手段が増幅した電波の強
度を表示し得る計測手段を設けて構成した電磁波測定装
置を用い、電磁シールドルームの内外で放送局から送信
される放送電波を前記電磁波測定装置により測定し、前
記測定した値を設計基準値と比較して前記電磁シールド
ルームのシールド性能を測定するようにして構成した電
磁シールドルームの遮断性能の測定方法。1. An antenna, comprising a receiving means connected to the antenna and capable of detecting and amplifying radio waves received by the antenna, and displaying on the receiving means the intensity of the radio waves amplified by the receiving means. Using an electromagnetic wave measuring device configured with a measuring means to obtain the results, the electromagnetic wave measuring device measures broadcast radio waves transmitted from a broadcasting station inside and outside the electromagnetic shield room, and compares the measured value with the design reference value to determine the A method for measuring the interrupting performance of an electromagnetic shielded room configured to measure the shielding performance of an electromagnetic shielded room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13828291A JPH0769370B2 (en) | 1991-05-14 | 1991-05-14 | Measuring method of breaking performance of electromagnetically shielded room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13828291A JPH0769370B2 (en) | 1991-05-14 | 1991-05-14 | Measuring method of breaking performance of electromagnetically shielded room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04337475A true JPH04337475A (en) | 1992-11-25 |
| JPH0769370B2 JPH0769370B2 (en) | 1995-07-31 |
Family
ID=15218262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13828291A Expired - Lifetime JPH0769370B2 (en) | 1991-05-14 | 1991-05-14 | Measuring method of breaking performance of electromagnetically shielded room |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0769370B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019083621A (en) * | 2017-10-30 | 2019-05-30 | 京セラ株式会社 | Measurement method, measurement program, and measurement device |
| JP2023007899A (en) * | 2021-07-02 | 2023-01-19 | アンリツ株式会社 | Radio wave black box, and test device using the radio wave black box |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330658B (en) * | 2014-10-14 | 2017-07-07 | 华北电力大学 | A kind of apparatus and method of the test material shield effectiveness under LCF |
-
1991
- 1991-05-14 JP JP13828291A patent/JPH0769370B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019083621A (en) * | 2017-10-30 | 2019-05-30 | 京セラ株式会社 | Measurement method, measurement program, and measurement device |
| US11644495B2 (en) | 2017-10-30 | 2023-05-09 | Kyocera Corporation | Measurement method, non-transitory computer-readable medium and measurement apparatus for determining whether a radio wave receiving apparatus can operate at an installable position |
| JP2023007899A (en) * | 2021-07-02 | 2023-01-19 | アンリツ株式会社 | Radio wave black box, and test device using the radio wave black box |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0769370B2 (en) | 1995-07-31 |
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