JPH0416351U - - Google Patents
Info
- Publication number
- JPH0416351U JPH0416351U JP5610790U JP5610790U JPH0416351U JP H0416351 U JPH0416351 U JP H0416351U JP 5610790 U JP5610790 U JP 5610790U JP 5610790 U JP5610790 U JP 5610790U JP H0416351 U JPH0416351 U JP H0416351U
- Authority
- JP
- Japan
- Prior art keywords
- printed wiring
- pattern
- wiring board
- detection
- board
- 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
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図及び第２図は本考案実施例を示す。第１
図は、検出機能図、第２図は、ＰＷＢの不良品を
示す部分拡大平面図である。
１……ＰＷＢ、２……検出パターン、３……配
線パターン、Ｓ……スイツチング回路、Ｐ……プ
ロテクター。
1 and 2 show an embodiment of the present invention. 1st
The figure is a detection function diagram, and FIG. 2 is a partially enlarged plan view showing a defective PWB. 1...PWB, 2...Detection pattern, 3...Wiring pattern, S...Switching circuit, P...Protector.
Claims (1)
ント配線基板において、該プリント配線基板上に
おける特定配線パターンの付近、或は該プリント
配線基板上の周縁部に、一点を開離した閉鎖状態
に近い環状の検出パターンを設け、該検出パター
ンの前記開離部両端から微弱電流を通じるように
し、これを監視回路により監視することにより、
基板の割れを検知するようにしたことを特徴とす
るプリント配線基板の割れ検出構造。 In printed wiring boards used as electronic circuits in various electrical devices, detection of an annular shape that is close to a closed state with one point open near a specific wiring pattern on the printed wiring board or at the periphery of the printed wiring board. By providing a pattern, passing a weak current from both ends of the open part of the detection pattern, and monitoring this with a monitoring circuit,
A crack detection structure for a printed wiring board, characterized by detecting cracks in the board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5610790U JPH0416351U (en) | 1990-05-29 | 1990-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5610790U JPH0416351U (en) | 1990-05-29 | 1990-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0416351U true JPH0416351U (en) | 1992-02-10 |
Family
ID=31579642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5610790U Pending JPH0416351U (en) | 1990-05-29 | 1990-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416351U (en) |
-
1990
- 1990-05-29 JP JP5610790U patent/JPH0416351U/ja active Pending
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