JPS6321959B2 - - Google Patents
Info
- Publication number
- JPS6321959B2 JPS6321959B2 JP55159311A JP15931180A JPS6321959B2 JP S6321959 B2 JPS6321959 B2 JP S6321959B2 JP 55159311 A JP55159311 A JP 55159311A JP 15931180 A JP15931180 A JP 15931180A JP S6321959 B2 JPS6321959 B2 JP S6321959B2
- Authority
- JP
- Japan
- Prior art keywords
- alarm
- transistor
- power supply
- transformer
- vibration
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Burglar Alarm Systems (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55159311A JPS5783892A (en) | 1980-11-12 | 1980-11-12 | Infinitesimal vibration detecting alarm unit |
US06/317,800 US4470040A (en) | 1980-11-12 | 1981-11-04 | Microvibration detector using a single piezoelectric element as both sensor and alarm generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55159311A JPS5783892A (en) | 1980-11-12 | 1980-11-12 | Infinitesimal vibration detecting alarm unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5783892A JPS5783892A (en) | 1982-05-25 |
JPS6321959B2 true JPS6321959B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-05-10 |
Family
ID=15691020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55159311A Granted JPS5783892A (en) | 1980-11-12 | 1980-11-12 | Infinitesimal vibration detecting alarm unit |
Country Status (2)
Country | Link |
---|---|
US (1) | US4470040A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
JP (1) | JPS5783892A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0218341A1 (en) * | 1985-08-22 | 1987-04-15 | Philip Young | Alarm for a blind |
FR2615163B1 (fr) * | 1987-05-15 | 1989-08-18 | Henri Bovy | Dispositif de controle de plongee, notamment pour plongeur autonome |
JPH07108657B2 (ja) * | 1987-05-16 | 1995-11-22 | 日本エ−ビ−エス株式会社 | アンチスキッド装置用液圧制御装置 |
US4929925A (en) * | 1988-02-24 | 1990-05-29 | Bodine David B | Alarm system |
US4974850A (en) * | 1989-06-21 | 1990-12-04 | Greg Hyman | Vibration triggered game device |
US5051725A (en) * | 1990-06-18 | 1991-09-24 | Soa Systems, Inc. | Security container |
US5243327A (en) * | 1992-03-25 | 1993-09-07 | K-Ii Enterprises Div. Of Wrtb, Inc. | Audible alarm for motion detection using dual mode transducer |
US5726617A (en) * | 1995-07-31 | 1998-03-10 | General Electric Company | Electrical transformer with reduced core noise |
US6138516A (en) * | 1997-12-17 | 2000-10-31 | Weld Star Technology, Inc. | Low-power shock detector and detection method |
EP2336731A1 (en) * | 2009-12-13 | 2011-06-22 | Fergus Jordan | Water waste detection in water distribution system with piezoelectric device |
ITMI20121414A1 (it) | 2012-08-08 | 2014-02-09 | Hst Italia | Sistema di allarme con oggetti operanti sia come sensori sia come attuatori |
CN104296860B (zh) * | 2014-10-28 | 2017-04-19 | 江苏天瑞变压器有限公司 | 一种变压器辅助装置 |
US20170059234A1 (en) * | 2015-08-29 | 2017-03-02 | Danby Products Limited | Appliance improvements |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2524579A (en) * | 1946-11-09 | 1950-10-03 | Taylor Maurice Kenyon | Detection of phenomena capable of setting up vibration |
US3665259A (en) * | 1970-08-19 | 1972-05-23 | Harrison D Brailsford | Vibration transducer for burglar alarms and the like |
US3670301A (en) * | 1971-03-15 | 1972-06-13 | Pete Pakulak | Vehicle anti-theft device |
US3750127A (en) * | 1971-10-28 | 1973-07-31 | Gen Dynamics Corp | Method and means for sensing strain with a piezoelectric strain sensing element |
US3863250A (en) * | 1973-01-30 | 1975-01-28 | Jr Arthur Mccluskey | Glass breakage detector |
US4170769A (en) * | 1978-09-06 | 1979-10-09 | Gte Sylvania Incorporated | Audio-detector alarm |
-
1980
- 1980-11-12 JP JP55159311A patent/JPS5783892A/ja active Granted
-
1981
- 1981-11-04 US US06/317,800 patent/US4470040A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPS5783892A (en) | 1982-05-25 |
US4470040A (en) | 1984-09-04 |