JPS5670427A - Seismosensor - Google Patents
SeismosensorInfo
- Publication number
- JPS5670427A JPS5670427A JP14796979A JP14796979A JPS5670427A JP S5670427 A JPS5670427 A JP S5670427A JP 14796979 A JP14796979 A JP 14796979A JP 14796979 A JP14796979 A JP 14796979A JP S5670427 A JPS5670427 A JP S5670427A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- outer tube
- piezoelectric substance
- section
- stress
- 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
Abstract
PURPOSE: To facilitate the setting of the device on an apparatus by a method wherein a pressure-sensitive element having a cross section whose inside follows a circle is provided around the lateral surface of a weight having a circular cross section and thereby the universal, practical and sensitive detection of seismic waves from an optional direction is made possible.
CONSTITUTION: The weight 4 having a circular cross section is contained by disc- shaped outer cover 1 and outer bottom 2 and a cylindrical outer tube 3. Between the weight 4 and the outer tube 3 is provided the pressure-sensitive element having electrodes on both surfaces thereof such as, for instance, a piezoelectric substance. Receiving the side waves of vibrations from an optional direction, the outer tube 3 and the weight 4 vibrate in that direction and the weight 4 gives a stress to the piezoelectric substance every time when it vibrates. The electric charge generated in the electrode of the piezoelectric substance 6 corresponding to the magnitude of this stress is transferred to a processing circuit and processed there as a signal, thereby sensing the vibration.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14796979A JPS5670427A (en) | 1979-11-15 | 1979-11-15 | Seismosensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14796979A JPS5670427A (en) | 1979-11-15 | 1979-11-15 | Seismosensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5670427A true JPS5670427A (en) | 1981-06-12 |
Family
ID=15442187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14796979A Pending JPS5670427A (en) | 1979-11-15 | 1979-11-15 | Seismosensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5670427A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0862049A2 (en) * | 1997-02-28 | 1998-09-02 | Kriwan Industrie-Elektronik Gmbh | Vibration sensor |
-
1979
- 1979-11-15 JP JP14796979A patent/JPS5670427A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0862049A2 (en) * | 1997-02-28 | 1998-09-02 | Kriwan Industrie-Elektronik Gmbh | Vibration sensor |
EP0862049A3 (en) * | 1997-02-28 | 2001-12-12 | Kriwan Industrie-Elektronik Gmbh | Vibration sensor |
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