JPH0327344U - - Google Patents
Info
- Publication number
- JPH0327344U JPH0327344U JP8762389U JP8762389U JPH0327344U JP H0327344 U JPH0327344 U JP H0327344U JP 8762389 U JP8762389 U JP 8762389U JP 8762389 U JP8762389 U JP 8762389U JP H0327344 U JPH0327344 U JP H0327344U
- Authority
- JP
- Japan
- Prior art keywords
- glass
- detector
- piezoelectric element
- detection surface
- glass breakage
- 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
- 239000011521 glass Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Burglar Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989087623U JP2536246Y2 (ja) | 1989-07-26 | 1989-07-26 | ガラス破壊検知器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989087623U JP2536246Y2 (ja) | 1989-07-26 | 1989-07-26 | ガラス破壊検知器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0327344U true JPH0327344U (en]) | 1991-03-19 |
| JP2536246Y2 JP2536246Y2 (ja) | 1997-05-21 |
Family
ID=31637268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989087623U Expired - Lifetime JP2536246Y2 (ja) | 1989-07-26 | 1989-07-26 | ガラス破壊検知器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536246Y2 (en]) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59183629U (ja) * | 1983-05-25 | 1984-12-06 | 日本セラミツク株式会社 | 振動検出器のハウジングの構造 |
-
1989
- 1989-07-26 JP JP1989087623U patent/JP2536246Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59183629U (ja) * | 1983-05-25 | 1984-12-06 | 日本セラミツク株式会社 | 振動検出器のハウジングの構造 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2536246Y2 (ja) | 1997-05-21 |