CN202159145U

CN202159145U - Pre-earthquake alarming device

Info

Publication number: CN202159145U
Application number: CN2011202154538U
Authority: CN
Inventors: 江西林
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-23
Filing date: 2011-06-23
Publication date: 2012-03-07
Anticipated expiration: 2021-06-23

Abstract

The utility model relates to a pre-earthquake alarming device, which comprises a geomagnetic variation induction receiver. The geomagnetic variation induction receiver comprises a first shell, an angle rotary disc arranged in the shell, a magnetic pole induction indicator fixed on the angle rotary disc through a rotating shaft and a first goniometer connected with the rotating shaft. The pre-earthquake alarming device is designed on the basis that movement of crustal plates can cause variation of the geomagnetic field and the gravitational field, can timely detect the variation of the geomagnetic field and the gravitational field in a short time, has good synchronism and sensitivity, and is small in number of constituting components, simple in constituting structure, low in cost and east to achieve and popularize.

Description

Alarm before a kind of earthquake shake

Technical field

The utility model belongs to earthquake disaster prevention control measurement technical field, is specifically related to the preceding alarm of a kind of earthquake shake.

Background technology

The harm of earthquake is the huge challenge of face of mankind; Especially in the recent period the 5.12 Wenchuan violent earthquakes of China and the unprecedented disaster that special violent earthquake caused of northeastern Japan let the mankind have a terror especially; And who is difficult to expect not know when and where also can take place at any time which type of earthquake from now on; Therefore forecast alarm method and the instrument and equipment studied before earthquake takes place are the human task of top priority, are very important.

Earthquake is that the crustal plate motion causes; The overwhelming majority underground to tens of kilometers of shallow top layer number kilometer that the earthquake of disaster generally occurs in the earth's crust that work the mischief; It has very strong destructiveness, in order to prevent and to avoid or reduce the destructiveness that this disaster causes as far as possible, for before the earthquake shake or the detection at initial stage very necessary; Can carry out the work of evacuating hedging in advance prepares; For this reason, people have done a large amount of observations and research, the abnormal behaviour of zoologizeing is arranged, have the research terrestrial magnetic field variation, the research seismic event is arranged, research space particle or the like is arranged.But these researchs only are the reports of shake back earthquake strength and source location for the warning of earthquake, can only be to mend the fold after the sheep is lost, and possibly before earthquake takes place, forecast warning hardly, do not play the effect of early warning before shaking.

The utility model content

The utility model purpose provides alarm before a kind of earthquake shake, is able to before earthquake takes place, people played the purpose of early warning, thereby avoids or reduce earthquake disaster.

For reaching above-mentioned purpose; The utility model provides a kind of earthquake shake preceding alarm; Comprise GEOMAGNETIC CHANGE induction receiving instrument; Its special character is that GEOMAGNETIC CHANGE induction receiving instrument comprises first housing, is arranged on the interior angle scale of this first housing, is fixed on magnetic pole induction pointer on this angle scale and first angular instrument that connects with this rotating shaft through rotating shaft.

Above-mentioned its also comprises VARIATION OF GRAVITY FIELD induction receiving instrument; The gravity pendulum that this VARIATION OF GRAVITY FIELD induction receiving instrument comprises second housing, is arranged on the universal joint in second housing and is arranged on this universal joint below; All be connected with one second angular instrument on each node of this universal joint; This gravity pendulum comprises fork and pendulum, and pendulum is connected with universal joint through this fork; GEOMAGNETIC CHANGE induction receiving instrument is arranged in the pendulum.

Above-mentioned first angular instrument or second angular instrument all are photogoniometers.

The utility model has the advantages that: alarm before the earthquake shake that the utility model provides; Based on athletic meeting causes that the variation of terrestrial magnetic field and gravity field designs to crustal plate, can detect the interior variation of short time of terrestrial magnetic field and gravity field in real time, have good synchronism and sensitivity; And its component parts is few; Form simple in structurely, with low cost, be easy to realize and widely apply.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is described further:

Fig. 1 is the structural representation of GEOMAGNETIC CHANGE induction receiving instrument;

Fig. 2 is that magnetic pole induction pointer produced the angle of slip synoptic diagram after GEOMAGNETIC CHANGE induction receiving instrument detected GEOMAGNETIC CHANGE;

Fig. 3 is the structural representation of VARIATION OF GRAVITY FIELD induction receiving instrument;

Fig. 4 is the synoptic diagram that the universal joint of VARIATION OF GRAVITY FIELD induction receiving instrument after the earth movement is subjected to displacement the angle;

Fig. 5 is that alarm is used synoptic diagram before the earthquake shake;

Fig. 6 is an alarm arranged in arrays synoptic diagram before the earthquake shake.

Description of reference numerals: 1-first housing; The 2-angle scale; The 3-rotating shaft; 4-magnetic pole induction pointer; 5-first angular instrument; The 6-universal joint; 7-second housing; The 8-gravity pendulum; The 9-fork; The 10-pendulum; Alarm before the 11-earthquake shake; 12-ground; The 13-power supply; The 14-signal amplification processor; The 15-central processing unit.

Embodiment

The structure principle of present embodiment is based on: the terrestrial magnetic field in any on earth position, any place has only a direction forever; The two poles of the earth of pointing to the earth exactly are North and South direction: the take up an official post gravity field in what position, any place of the same earth has only a direction to point to the earth's core exactly, and these 2 is eternal at any time.No matter the huge relatively earth of all earthquake intensity sizes that is taken place in the world all is the minimum earth movement of a part; At first be the earth's crust generation friction speed of part on the earth and the motion of intensity before earthquake takes place, soon earthquake will take place when the motion of the Where topical earth's crust reaches critical point.The friction speed of the local earth's crust and the motion of intensity have a time course before arriving the critical point that the spot shakes, and this process or length or weak point reflect the speed of earth movement speed, the indirect power that reflects local earthquake.This time course is extremely important, and the information such as speed of only forecasting earth movement timely in this time period just can be forecast before earthquake takes place.The outstanding feature of the different motion of the local earth's crust is exactly to cause the magnetic field of the relative earth integral body with gravity field in magnetic field and the variation of gravity field partly.Before the shake forecast alarm (system) be exactly before taking place according to earthquake earth movement change the signal that causes changes of magnetic field and ground potential field partly to change or the like and change, induction receives variable signal and also handles and forecast timely and report to the police before the critical point that earthquake takes place.Therefore the forecast alarm mainly contains following a few part composition before the shake:

In order to detect the variation in the preceding magnetic field of the earth of earthquake; The present embodiment spy provides GEOMAGNETIC CHANGE as shown in Figure 1 induction receiving instrument, and it comprises first housing 1, be arranged on angle scale 2 in first housing 1, alarm 11, ground 12, power supply 13, signal amplification processor 14, central processing unit 15 before rotating shaft 3, magnetic pole induction pointer 4, first angular instrument 5, universal joint 6, second housing 7, gravity pendulum 8, fork 9, pendulum 10, the earthquake shake.

Angle scale 2 (compass) in first housing 1, the magnetic pole induction pointer 4 (permanent magnet pointer) that is fixed on this angle scale 2 (compass) through rotating shaft 3 reach photoelectricity first angular instrument 5 that connects with this rotating shaft 3.Thus; When the terrestrial magnetic field changes; Also be that motion has taken place crustal plate, will drive first housing, 1 motion of GEOMAGNETIC CHANGE induction receiving instrument, first housing 1 will produce the displacement (as shown in Figure 2) with respect to magnetic pole induction pointer (permanent magnet pointer) 4; Because angle scale (compass) the 2nd is fixed on first housing 1; Then magnetic pole induction pointer (permanent magnet pointer) 4 will produce an angle of slip (shown in Figure 2) on angle scale (compass) 2, through the size of photoelectricity first angular instrument, 5 these angle of slip of measurement and angular velocity, just can reflect the severe of earth movement.

Magnetic induction synoptic diagram when being earth's crust stationary state wherein shown in Figure 1; The state of earth movement does not promptly take place yet; Or the state of earthquake can not take place; Magnetic pole induction pointer (permanent magnet pointer) 4 is consistent with the direction of terrestrial magnetic field, and the angle on the compass is zero or the beginning angle is certain constant value (M=0).

Promptly will the spot during shake; As shown in Figure 2, the motion of the earth's crust drives first housing, 1 motion of instrument, because permanent magnet has gyroscopic inertia (the n-s utmost point of permanent magnet is consistent with the n-s utmost point of the earth all the time); The motion of instrument first housing 1 just with the relative displacement of magnetic pole induction pointer (permanent magnet pointer) 4 generations; Angle on the angle scale (compass) 2 will be worth (M>0) for certain, and the size of this angle and angular velocity just can reflect the severe of earth movement, also just reflect the intensity of earthquake.The measurement of angle value and magnitude of angular velocity is measured by photoelectricity first angular instrument 5.

Simultaneously in order to detect the variation of the gravity field that earth movement produces; Present embodiment provides VARIATION OF GRAVITY FIELD induction receiving instrument as shown in Figure 3; This VARIATION OF GRAVITY FIELD induction receiving instrument comprises second housing 7, be arranged on the universal joint 6 in second housing 7 and be arranged on the gravity pendulum 8 of these universal joint 6 belows; All be connected with a photogoniometer on each node of this universal joint 6, this gravity pendulum 8 comprises fork 9 and pendulum 10, and pendulum 10 is connected with universal joint 6 through this fork 9; GEOMAGNETIC CHANGE induction receiving instrument is arranged in the pendulum 10; Can increase the weight of pendulum 10; And can save the space, make that the volume of whole earthquake early-warning apparatus is less, the more important thing is under the effect of gravity; Can remain changes of magnetic field induction receiving instrument and under any circumstance keep horizontality, this is very necessary condition.

The principle of work of this VARIATION OF GRAVITY FIELD induction receiving instrument is: when the earth's crust moves, just can drive 7 motions of second housing; And the gravity tester of gravity pendulum 8 is to being to point to the earth's core all the time, and when second housing 7 moved with the earth's crust, universal joint 6 just can move with respect to second housing 7 under the effect of gravity pendulum 8; At this moment; The angular instrument that is connected on each node of universal joint 6 becomes angle a (as shown in Figure 4) and the angular velocity of measuring each node, so just can reflect the moving situation of the earth's crust, and then whether definite locality is about to take place earthquake; Reach the effect of the preceding early warning of shake, reduce casualties and property loss to greatest extent.

Fig. 5 and independent application and the arrayed applications synoptic diagram that is respectively the preceding alarm 11 of earthquake shake shown in Figure 6; Use separately or arrayed applications no matter be; Alarm 11 all will be installed in underground some rice as shown in Figure 5 before the earthquake shake; And the required energy of alarm 11 and signal processing system all are arranged on and get final product on the ground 12 before the earthquake shake; All be arranged on the Ground Control chamber like power supply 13, signal amplification processor 14 and central processing unit 15 etc., only need to get final product through alarm 11 contacts before data line or power lead 15 and the earthquake shake.

When the earthquake pre-warning appearance is formed arrayed applications; As the case may be; Geologic structure according to country is total is installed the earthquake pre-warning appearance on the different geological plate; Again with each independently the data that collect of earthquake pre-warning appearance amplify, handle and receive, and be sent to central processing unit and can shake preceding early warning.

Fig. 6 is that the system works synoptic diagram is the arrayed applications synoptic diagram of alarm 11 before the earthquake shake; This system forms huge network system by the preceding alarm 11 of several independent earthquake shakes; Independently the installation site of alarm 11 is to confirm according to specific circumstances before the earthquake shake; Can on different ground 12, install according to the total geologic structure of country; Also can be in the area of population agglomeration, the installation from all directions of the critical facility (Three Gorges Dam, nuclear facilities or the like) of each city, country; Amplify the information of the earth movement of each locality that independently alarm 11 is gathered before the earthquake shake, handle, receive and be sent to central processing system and handle, confirm the position of earthquake and the intensity of earthquake according to the result of central processing system, the forecast before can shaking is reported to the police; Can let government before earthquake takes place, formulate emergency measure and scheme, reduce the loss of casualties and property to greatest extent.

Claims

1. alarm before an earthquake is shaken; Comprise GEOMAGNETIC CHANGE induction receiving instrument, it is characterized in that: said GEOMAGNETIC CHANGE induction receiving instrument comprises first housing, is arranged on the interior angle scale of this first housing, is fixed on magnetic pole induction pointer on this angle scale and first angular instrument that connects with this rotating shaft through rotating shaft.

2. alarm before a kind of earthquake shake as claimed in claim 1; It is characterized in that: it also comprises VARIATION OF GRAVITY FIELD induction receiving instrument; The gravity pendulum that this VARIATION OF GRAVITY FIELD induction receiving instrument comprises second housing, is arranged on the universal joint in second housing and is arranged on this universal joint below; All be connected with one second angular instrument on each node of this universal joint, this gravity pendulum comprises fork and pendulum, and said pendulum is connected with said universal joint through this fork; Said GEOMAGNETIC CHANGE induction receiving instrument is arranged in the said pendulum.

3. alarm before a kind of earthquake shake as claimed in claim 2, it is characterized in that: said first angular instrument or second angular instrument all are photogoniometers.