JPS6392245U - - Google Patents
Info
- Publication number
- JPS6392245U JPS6392245U JP18718586U JP18718586U JPS6392245U JP S6392245 U JPS6392245 U JP S6392245U JP 18718586 U JP18718586 U JP 18718586U JP 18718586 U JP18718586 U JP 18718586U JP S6392245 U JPS6392245 U JP S6392245U
- Authority
- JP
- Japan
- Prior art keywords
- dirt
- section
- printed wiring
- wiring boards
- optical fiber
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Description
第１，２図は本考案の一実施例としての汚れ検
出装置を示すもので、第１図はその全体構成図、
第２図はその汚れ検出部、光フアイバ、発光部お
よび受光部を共に示す模式図である。
１……ラツク、１Ａ……プリント配線板、２…
…光フアイバセンサ本体部、２Ａ……発光部、２
Ｂ……受光部、３……パルス発生回路、４……汚
れ判定手段を構成するパルス検出回路、４ａ……
リレー、５，６……光フアイバ、７……汚れ検出
部としての９０°ミラーアタツチメント、７Ａ…
…アタツチメント本体、７Ａ―１，７Ａ―２……
傾斜鏡面部、８……ギヤツプ、９……フアン、１
０……警報器。
Figures 1 and 2 show a dirt detection device as an embodiment of the present invention, and Figure 1 is its overall configuration diagram;
FIG. 2 is a schematic diagram showing the dirt detection section, optical fiber, light emitting section, and light receiving section. 1...Rack, 1A...Printed wiring board, 2...
...Optical fiber sensor main body, 2A... Light emitting part, 2
B... Light receiving section, 3... Pulse generation circuit, 4... Pulse detection circuit constituting dirt determination means, 4a...
Relay, 5, 6... Optical fiber, 7... 90° mirror attachment as dirt detection section, 7A...
...Attachment body, 7A-1, 7A-2...
Inclined mirror surface part, 8...Gap, 9...Fan, 1
0...Alarm.
Claims (1)
に、汚れ検出部をそなえ、同汚れ検出部が上記プ
リント配線板間の空間に開口するキヤツプを有し
、且つ、同ギヤツプを横切る方向に光を照射すべ
く上記汚れ検出部に光フアイバが接続されるとと
もに、上記ギヤツプを横切つてきた光を光フアイ
バを介して受ける受光部が設けられて、同受光部
からの出力に基づいて汚れを判定する汚れ判定手
段が設けられたことを特徴とする、汚れ検出装置
。 A dirt detection section is provided between the printed wiring boards disposed at intervals, and the dirt detection section has a cap that opens into the space between the printed wiring boards, and the dirt detection section has a cap that opens into the space between the printed wiring boards, and that transmits light in a direction across the gap. An optical fiber is connected to the dirt detecting section to irradiate the dirt, and a light receiving section is provided to receive the light passing through the gap via the optical fiber, and detects dirt based on the output from the light receiving section. A dirt detection device, characterized in that it is provided with dirt determination means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18718586U JPS6392245U (en) | 1986-12-04 | 1986-12-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18718586U JPS6392245U (en) | 1986-12-04 | 1986-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6392245U true JPS6392245U (en) | 1988-06-15 |
Family
ID=31137429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18718586U Pending JPS6392245U (en) | 1986-12-04 | 1986-12-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6392245U (en) |
-
1986
- 1986-12-04 JP JP18718586U patent/JPS6392245U/ja active Pending