CN2125834U - High sensitivity earthquake warner - Google Patents
High sensitivity earthquake warner Download PDFInfo
- Publication number
- CN2125834U CN2125834U CN 92222794 CN92222794U CN2125834U CN 2125834 U CN2125834 U CN 2125834U CN 92222794 CN92222794 CN 92222794 CN 92222794 U CN92222794 U CN 92222794U CN 2125834 U CN2125834 U CN 2125834U
- Authority
- CN
- China
- Prior art keywords
- alarm
- earthquake
- highly sensitive
- starting switch
- sensitivity
- 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
- 230000035945 sensitivity Effects 0.000 title claims abstract description 9
- 230000006698 induction Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims 2
- 239000000428 dust Substances 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a high sensitivity and non-contact earthquake alarm, which is mainly composed of a power source, a power amplifier, a music integrated package, and a special non-contact switch. The oxidation and dust don't affect the reliability of the alarm; the sensitivity and the reflection earthquake scale can be realized by adjusting an adjustable resistor. The utility model has the advantages of simple structure, low cost. The alarm is an ideal household simple earthquake alarm.
Description
The utility model relates to signaling device, a kind of novel highly sensitive contactless earthquake Alarm.
The simple and easy earthquake alarming device of existing family expenses all is to adopt Mechanical Contact (contact is arranged) formula to report to the police.It is made up of pendulum lead and becket, in case vibrations are arranged, the pendulum lead contacts with becket, connects circuit warning device is reported to the police.There is certain shortcoming in it: the one, can only accept secondary wave (S ripple), and reactionless to compressional wave (P ripple); The 2nd, sensitivity is not high, has only when shear wave reaches certain amplitude of vibration, can start warning, and the contact is in open-circuit condition for a long time, and oxidation easily, control of dust influence its reliability.
The purpose of this utility model provides a kind of highly sensitive contactless earthquake Alarm, enables to receive big shake faint shear wave and compressional wave before, also can receive big ground magnetic wave, and give the alarm timely and accurately.
Highly sensitive contactless earthquake Alarm mainly is made up of power supply, power amplifier, music-integrating block and noncontacting switch.
The noncontacting switch of above-mentioned alarm is made of permanent magnet pendulum, coil, amplifier.Make the magnet pendulum up and down or side-to-side vibrations when earthquake, coil produces induction current, and this electric current makes the triode conducting, thereby starts music-integrating block, by power amplification, makes loudspeaker send chimes of doom.Its sensitivity can realize by adjusting potentiometer.
Accompanying drawing 1 is an embodiment of the present utility model.
Above coil L, potentiometer W can be used for adjusting its sensitivity and the earthquake magnitude that can reflect to the pendulum of cylinder-shaped magnet shown in figure D by spring suspension, and its two ends meet positive source and triode BG respectively
2Base stage, can be used as the switch that starts alarm with top.C
1, C
2Be anti-wave interference, report to the police in order to avoid produce false triggering.The input termination BG of music-integrating block
2Emitter, output termination triode BG
1Base stage, signal drives loudspeaker through power amplification and sounds.
When magnet pendulum D swung owing to earthquake, the induction current that coil produces made triode BG
2C, the E utmost point between conducting, thereby excite music integrated block IC work, by power amplification, make loudspeaker send warning.
The utility model can receive slight laterally with vertically the shaking in the face of land, and send chimes of doom through evidence.Owing to adopted noncontacting switch, avoided oxidation, dust influence, so its device sensitivity, reliability height to its reliability.This device circuit is simple in structure, cost is low, be convenient to popularize, practical, be the simple and easy earthquake Alarms of a kind of comparatively ideal family expenses.
Claims (3)
1, a kind of highly sensitive contactless earthquake Alarm, it is characterized in that: be made up of power supply, amplifier, music-integrating block and starting switch, the vibrations on the face of land make switch connection, start music-integrating block, and signal sends chimes of doom through amplifying the driving loudspeaker.
2, highly sensitive contactless earthquake Alarm according to claim 1, it is characterized in that: starting switch is by triode BG
2, magnet pendulum D, inductive coil L and adjustable resistance W form jointly, magnet pendulum D is suspended on directly over the L, it is the vibrations by magnet pendulum D, makes inductive coil L produce induction current, thereby makes triode BG
2Conducting starts alarm equipment alarm.
3, the starting switch of highly sensitive contactless earthquake Alarm according to claim 2 is characterized in that: the termination power of resistance W, another termination BG
2Base stage, can regulate the resistance size determine its sensitivity and reflect the size of earthquake magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92222794 CN2125834U (en) | 1992-05-21 | 1992-05-21 | High sensitivity earthquake warner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92222794 CN2125834U (en) | 1992-05-21 | 1992-05-21 | High sensitivity earthquake warner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2125834U true CN2125834U (en) | 1992-12-23 |
Family
ID=4965653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92222794 Pending CN2125834U (en) | 1992-05-21 | 1992-05-21 | High sensitivity earthquake warner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2125834U (en) |
-
1992
- 1992-05-21 CN CN 92222794 patent/CN2125834U/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |