CN105388516B - Seismic omnidirectional vector divergence detector - Google Patents
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- CN105388516B CN105388516B CN201510713070.6A CN201510713070A CN105388516B CN 105388516 B CN105388516 B CN 105388516B CN 201510713070 A CN201510713070 A CN 201510713070A CN 105388516 B CN105388516 B CN 105388516B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
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Abstract
The invention discloses an earthquake omnidirectional vector divergence detector, which comprises: the detector comprises four detectors and a supporting structure, wherein the supporting structure is used for supporting the four detectors, so that the bottom surfaces of the four detectors are respectively positioned on one regular triangular surface of a regular tetrahedron, and the intersection point of the working shaft of each detector and the corresponding regular triangular surface is positioned at the center of the regular triangular surface. The invention designs a specific space motion vector detection structure according to a Gaussian divergence formula of a field theory so as to realize the detection of the frequency, the amplitude, the phase and the vibration direction of a seismic wave field, in particular the divergence information of a wave power field, and form a brand-new seismic omnidirectional vector divergence detector technology.
Description
Technical field
The present invention relates to wave detector technical field more particularly to a kind of earthquake omnidirectional vector divergence wave detectors.
Background technology
According to wave theory, fluctuation not only indicates vibration, is also represented by the propagation of vibration.Specifically：1, vibration can be analyzed to
Linearly coupled, rotation vibration；2, wave field divergence drives longitudinal wave, wave field curl to drive shear wave；3, linearly coupled is the common of divergence and curl
Effect had both included longitudinal wave, also included shear wave；4, rotation vibration is only related with curl；5, body curl is complete curl, and curl is not
Complete curl.Therefore, the technology that can only detect linearly coupled is unable to clean separation longitudinal and shear wave.Must be can detect body curl or
The technology of divergence is possible to solve pure shear wave and pure longitudinal wave.
The spatial movement attribute of fluctuation, contains abundant information, can be in wave field separation, signal-to-noise ratio, fidelity, imaging
Precision, media property analysis etc. play an important role.But existing acquisition technique but can only detected amplitude, frequency, phase
Etc. information, the basic function that spatial movement attribute is fluctuated without detection.
The detection of seismic wave at present is to be converted to electric signal (voltage, electric current) or carry out number conversion again by wave vibration
It realizes.The method that mechanical movement is converted into electric signal, nothing more than application electromagnetic detector, capacitor detector, piezoelectric seismometer
With fibre strain wave detector.
Electromagnetic detector and capacitor detector are linearly coupled types, there is operative orientation.Ideal orientation filter effect is cos θ,
Out (t)=A (t) cos θ.A (t) and θ is unknown, and only individual devices can not ask real amplitude A (t) and angle theta.MEMS
Wave detector substantially belongs to capacitive wave detector, also in compliance with above-mentioned rule.
Fibre strain wave detector is attributable to linearly coupled or pressure type, and single device can not determine direction of vibration.So individually
Electromagnetic detector, capacitor detector and fibre strain wave detector, all cannot distinguish between wave field direction of vibration, with less detection wave field
The function of divergence curl.
Piezoelectric seismometer is pressure type, and output is related with surrounding liquid medium pressure, non-directional, cannot distinguish between vibration side
To.Pressure isotropism in liquid environment is equivalent to wave field divergence.But solid-state environment by land, even if placing it in liquid appearance
In device, divergence measurement also cannot achieve.
Three-component geophone can find out wave field direction of vibration θ and amplitude A (t) with three vector composite analysis.This is also
The reason of being called vector wave detector, but the only linearly coupled vector of measurement point, cannot detect oscillatory property, curl and divergence.
In conclusion all kinds of wave detectors in the prior art can not achieve the detection of seismic wave field full information.
Fig. 1 is directional responses schematic diagram of the ideal single wave detector in longitudinal wave field in the related technology, and Fig. 2 is related skill
Directional responses schematic diagram of the ideal list wave detector in shear wave wave field in art, to illustrate the operative orientation of wave detector.Such as
Shown in Fig. 1, Fig. 2, the output of wave detector is realized based on following formula：Out=An=a × bcos θ.Wherein, A indicates wave field letter
Number, vector；N indicates wave detector operative orientation unit vector；Instantaneous amplitudes of a expression wave field A in direction of vibration；B indicates detection
Device sensitivity；θ indicates the angle of the operative orientation and wave field direction of vibration at detector position of wave detector；P is longitudinal wave subscript；s
For shear wave subscript.
Specifically, as shown in Figure 1, output of the wave detector in longitudinal wave field is realized based on following formula：
Out=ApN=ap×bcosθp；Wherein, ApIndicate longitudinal wave field isochronous surface；apIndicate wave field ApIn wave detector position
The immediate movement amount for the normal direction set；B indicates geophone sensitivity；θpThe operative orientation and wave field for indicating wave detector vibrate
The angle in direction.
As shown in Fig. 2, output of the wave detector in shear wave wave field is realized based on following formula：
Out=AsN=as×bcosθs；Wherein, AsIndicate shear wave wave field isochronous surface；asIndicate wave field AsIn wave detector position
The immediate movement amount in the vibration vector direction set；B indicates geophone sensitivity；θsIndicate that the operative orientation of wave detector shakes with wave field
The angle in dynamic direction.
In Fig. 1, Fig. 2 and above-mentioned formula do not have to include the other performance of electromagnetism electric capacity wave detector, only directionality is retouched
It states.Above-mentioned formula is used only to illustrate single detector, meets the directivity requirement of more vector space structures.
Seismic wave testing process in traditional technology is as follows：
According to wave equation, movement relation of the medium particle in the field of force such as following formula (1)：
Wherein, λ, μ are Lame constants, and ρ is density, and U is motion vector, and t is the time.
Divergence is asked to formula (1), obtains following formula (2)：
Wherein, div is divergence, VpIt is longitudinal wave propagation speed.
Curl is asked to formula (1), obtaining following formula (3) has：
Wherein, rot is curl.W=rot (U), VsIt is shear wave propagation speed.
In the conventional technology, the detection of seismic wave only collectsIn the throwing of vertical wave detector operative orientation
Shadow is notLater just according to the various solution of equation longitudinal waves of formula (2) evolution；It collectsIn horizontal detection
The projection of device operative orientation, later just according to the various solution of equation shear waves of formula (3) evolution.Joined on the basis of these errors
Close solution, joint inversion.Therefore, error is obvious.
It the problem of for not having divergence infomation detection to seismic wave field in the prior art or measuring function, not yet carries at present
Go out effective solution scheme.
Invention content
The present invention provides a kind of earthquake omnidirectional vector divergence wave detectors, at least to solve in the prior art to seismic wave field
Not the problem of not having divergence infomation detection or measuring function.
According to an aspect of the invention, there is provided a kind of earthquake omnidirectional vector divergence wave detector, including：Four inspections
Wave device and support construction, the support construction are used to support four wave detectors so that the bottom surface of four wave detectors point
Wei Yu not be on one of positive tetrahedron equilateral triangle face, the working shaft of each wave detector and corresponding equilateral triangle face
Intersection point is located at the center in the equilateral triangle face.
Preferably, the wave detector be cylinder electromagnetic type wave detector, the bottom surface of each cylinder electromagnetic type wave detector with it is described
The distance of the body geometric center of positive tetrahedron is the non-touching minimum value of each wave detector.
Preferably, the wave detector is flat chip capacitor type wave detector.
Preferably, four space vectors of four wave detectors meet Gauss divergence formula.
Preferably, the relationship of angle theta is out between the amplitude-frequency response of the wave detector, with itself working shaft and wave field normal
(t)=A (t) cos θ, wherein A (t) is response of the wave detector in θ=0 to wave field.
Preferably, a conical tail bone, the extended line warp of the axis of the conical tail bone are connected in the support construction
After crossing a vertex of the positive tetrahedron, the center in one of positive tetrahedron face is passed perpendicularly through.
Preferably, the earthquake omnidirectional vector divergence wave detector further includes：Spherical shell is divided into upper semispherical shell under
Hemispherical shell, four wave detectors and the support construction are placed on inside the spherical shell, the lower half spherical shell
The bottom setting tail bone hole of body, the tail bone pass through the tail bone hole of the lower half spherical shell.
Preferably, the edge of the upper semispherical shell and the lower half spherical shell is respectively arranged with mutually matched prominent
Go out portion, the protruding portion of the upper semispherical shell and the lower half spherical shell is fixed by fixation kit.
Preferably, the signal output line of setting signal string holes on the spherical shell, each wave detector passes through the signal wire
Hole.
Preferably, the joint gap between the upper semispherical shell of the spherical shell and lower half spherical shell, the tail
Vertebral foramen and the signal string holes seal waterproof with silica gel or rubber material.
Preferably, the support construction is positive tetrahedron support construction, and each face of the positive tetrahedron support construction is
Arbitrary surface or plane.
The present invention designs specific spatial motion vectors detection structure according to the Gauss divergence formula of field theory, with realization pair
The detection of the frequency, amplitude, phase, direction of vibration, especially the divergence information in the fluctuation field of force of seismic wave field, forms completely new ground
Shake omnidirectional's vector divergence wave detector technology.
With the technical scheme is that basis, can reach following purpose：
1, on the basis of traditional detector function, divergence, the function of line vector for measuring seismic wave are further added by；
2, according to vector calculus rule, the precision that redundant computation seismic wave vibrates line vector is better than three-component geophone；
3, it is that full vector dissipates and screws body wave detector and lay the foundation structure；
4, the spatial balance advantage not having with traditional detector.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description do not constitute limitation of the invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is directional responses schematic diagram of the ideal single wave detector in longitudinal wave field in the related technology；
Fig. 2 is directional responses schematic diagram of the ideal single wave detector in shear wave wave field in the related technology；
Fig. 3 is the structural schematic diagram of earthquake omnidirectional vector divergence wave detector according to the ... of the embodiment of the present invention；
Fig. 4 is the work schematic vector diagram of earthquake omnidirectional vector divergence wave detector according to the ... of the embodiment of the present invention；
Fig. 5 is according to the ... of the embodiment of the present invention to integrate equivalent Gauss Divergence Structure schematic diagram entirely；
Fig. 6 is Stokes integral positive rotation equivalent structure schematic diagram according to the ... of the embodiment of the present invention；
Fig. 7 is earthquake omnidirectional vector divergence wave detector actual measurement output schematic diagram according to the ... of the embodiment of the present invention；
Fig. 8 is the spherical shell appearance diagram of earthquake omnidirectional vector divergence wave detector according to the ... of the embodiment of the present invention；
Fig. 9 is the appearance diagram of earthquake omnidirectional vector divergence wave detector according to the ... of the embodiment of the present invention.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
The present invention proposes a kind of earthquake omnidirectional vector divergence wave detector, is each on space structure to equal isoequilibrium
, this is the structural advantage that wave detector does not have in the prior art, and seismic wave field divergence can be realized using this structural advantage
The accurate detection of information.The concrete structure of earthquake omnidirectional vector divergence wave detector is introduced below.
An embodiment of the present invention provides a kind of earthquake omnidirectional vector divergence wave detectors, and Fig. 3 is according to the ... of the embodiment of the present invention
The structural schematic diagram of earthquake omnidirectional vector divergence wave detector, as shown in figure 3, the earthquake omnidirectional vector divergence wave detector includes：Four
A wave detector and support construction, the support construction are used to support aforementioned four wave detector so that the bottom surface difference of four wave detectors
On one of positive tetrahedron equilateral triangle face, the friendship of the working shaft of each wave detector and corresponding equilateral triangle face
Center of the point positioned at the equilateral triangle face.
It should be noted that above-mentioned working shaft is imaginary axis, to illustrate position relationship.In practical applications, wave detector
Working shaft be not necessarily located at the centre position (i.e. central shaft) of wave detector.Above-mentioned positive tetrahedron is not entity structure,
But Virtual space structure, it is intended to describe the position relationship between four wave detectors.
The present invention designs specific spatial motion vectors detection structure according to the Gauss divergence formula of field theory, with realization pair
The detection of the frequency, amplitude, phase, direction of vibration, especially the divergence information in the fluctuation field of force of seismic wave field, forms completely new ground
Shake omnidirectional's vector divergence wave detector technology.
The support construction of earthquake omnidirectional vector divergence wave detector can be based on Demand Design into arbitrary shape, and the present invention is to this
It does not limit, as long as can guarantee space vector form.Preferably, positive tetrahedron shape, positive tetrahedron branch be can be designed as
The size of support structure is generally higher than above-mentioned virtual positive tetrahedron.Preferably, each face of positive tetrahedron support construction can change
Become arbitrary surface, to meet different demands.The material of support construction is not limited to solid-state, the rigidity of support construction and measurement
As a result related, therefore demand can be based on and select different materials.
Wave detector in the present embodiment at least can be cylinder electromagnetic type wave detector, need to meet：Each cylinder electromagnetic type inspection
The bottom surface of wave device is the non-touching minimum value of each wave detector at a distance from the body geometric center of positive tetrahedron；It can also be flat
Chip capacitor type wave detector.It is of course also possible to be other kinds of wave detector, as long as can be in earthquake omnidirectional vector divergence wave detector
Middle normal work, the present invention are without limitation.
Fig. 4 is the work schematic vector diagram of earthquake omnidirectional vector divergence wave detector according to the ... of the embodiment of the present invention, in Fig. 4
Arrow on each face indicates work vector.
Fig. 5 be it is according to the ... of the embodiment of the present invention integrate equivalent Gauss Divergence Structure schematic diagram entirely, Fig. 6 is according to of the invention real
The Stokes integral positive rotation equivalent structure schematic diagram for applying example, according to Fig. 5 and vector correlation shown in fig. 6：
According to divergence Gauss theorem：The earthquake omnidirectional vector that the embodiment of the present invention can be obtained dissipates
Spend the divergence formula of wave detector：
According to curl Stokes formula：The dextrorotation of the present embodiment can be obtained
Spend formula：And derotation degree formula：
Wherein, A is wave field function, and l is receiver response vector, and i is the interior road serial number of wave detector,For
Collected i-th inside track data, integrates above-mentioned on equivalent Gauss Divergence Structure entirely：It is first group, i=1-4,For
Second group, i=5-8.Div is divergence, and rot is curl, and V is volume, and dv is volume differential, and S is area, and dS is area differentiation, m
For the number of the positive faces m body；niFor the receiver response vector on the i-th face normal.Formula is accumulated according to trigonometric sum differenceization, it is specific at this
In structure,
It should be noted that earthquake omnidirectional vector divergence wave detector provided by the invention is four based on virtual positive tetrahedron
The four of root axis (the star-like axis of solid that i.e. line of centres in the body center of positive tetrahedron and four positive triangle faces is constituted) formation divide equally
Solid space balanced structure.A high sensitivity is co-axially mounted with axis respectively at the center in each equilateral triangle face of positive tetrahedron
The full dip-angle detector of broadband, the relationship of angle theta is out (t)=A between amplitude-frequency response and itself working shaft and wave field normal
(t) cos θ, wherein A (t) is response of the wave detector in θ=0 to wave field.
Earthquake omnidirectional vector divergence wave detector includes four wave detectors, and Fig. 7 is that earthquake according to the ... of the embodiment of the present invention is complete
Output schematic diagram is surveyed to vector divergence wave detector, as shown in fig. 7, to share four track datas defeated for earthquake omnidirectional vector divergence wave detector
Go out.The full integral of four track datas is exactly the pure divergence response to seismic wave field, i.e., divergence theorem of Gauss is as a result, its divergence value meets
Mathematical physics rule (is linear relationship with the framework material k-factor and the earth k-factor ratio for making wave detector, and and buries
It sets that environment is closely related, such as meets the rule etc. that free boundary divergence is zero).Earthquake omnidirectional vector divergence wave detector always shakes
Moving-wire vector can be calculated by redundant vectors and be found out, and be equal to the calculated vibration line vector of traditional three-component geophone.Earthquake
The frequency characteristic of omnidirectional's vector divergence wave detector is determined by used unit component performance.According to the height and geometry of positive tetrahedron
The proportionate relationship at center is just that the other three direction vector is multiplied by -1, the calculation of response of each vector in wave field with direction vector 1
Art and, be equivalent to double sensitivity list wave detector.The initial data and divergence of earthquake omnidirectional vector divergence wave detector can be used as complete
Play the input data of equation, full vector treatment technology, full vector interpretation technique, full vector lithology fluid technique.
Front is described in detail the concrete structure of earthquake omnidirectional vector divergence wave detector, is actually using
Cheng Zhong is placed for convenience, and a conical tail bone, the conical are connected in the support construction of earthquake omnidirectional vector divergence wave detector
The extended line of the axis of tail bone passes perpendicularly through behind a vertex of positive tetrahedron in one of positive tetrahedron face
The heart.During normal use, which is inserted into ground downwards, consequently facilitating fixed.
Spherical shell can also be arranged in earthquake omnidirectional vector divergence wave detector, be divided into upper semispherical shell and lower half spherical shell
Body, four wave detectors and support construction are placed on inside spherical shell, the bottom setting tail bone hole of lower half spherical shell, above-mentioned tail
Vertebra passes through the tail bone hole of lower half spherical shell.Fig. 8 is the ball of earthquake omnidirectional vector divergence wave detector according to the ... of the embodiment of the present invention
Shape shell appearance diagram, as shown in figure 8, the spherical shell of earthquake omnidirectional vector divergence wave detector is divided into upper semispherical shell 10
With lower half spherical shell 11, the conical tail bone 20 connected in the support construction of earthquake omnidirectional vector divergence wave detector passes through lower half
The tail bone hole 21 of the bottom setting of spherical shell 11.By the preferred embodiment, wave detector can be protected, consolidates earthquake omnidirectional
Vector divergence wave detector.
It is placed on spherical shape in order to which four wave detectors by the support construction of earthquake omnidirectional vector divergence wave detector and thereon are firm
In shell, the shape of support construction can be designed as fitting easily into the shape of spherical shell.Fig. 9 is according to embodiments of the present invention
Earthquake omnidirectional vector divergence wave detector appearance diagram, as shown in figure 9, by each of the support construction of positive tetrahedron shape
Vertex reams one piece, in order to be placed in spherical shell, it is ensured that earthquake omnidirectional vector divergence wave detector gathered data it is accurate
Property.
In view of the fixation problem of upper semispherical shell and lower half spherical shell, a kind of preferred implementation is present embodiments provided
Mode, i.e.,：Mutually matched protruding portion, upper semispherical shell is respectively set in the edge of upper semispherical shell and lower half spherical shell
It is fixed by fixation kit with the protruding portion of lower half spherical shell.For example, being fixed by way of screw and screw hole.To protect
Demonstrate,prove stability of the earthquake omnidirectional vector divergence wave detector in actual mechanical process.
For the signal output line of earthquake omnidirectional vector divergence wave detector, can on spherical shell setting signal string holes,
So that the signal output line of wave detector is passed through the signal string holes, consequently facilitating signal output line is output to outside shell, effectively obtains
Data.
It, can be in the upper half spherical shell of spherical shell in order to avoid the vector divergence wave detector water inlet of earthquake omnidirectional influences to use
Joint gap, tail bone hole between body and lower half spherical shell and signal string holes, seal waterproof, for example, silica gel can be selected
Or rubber material is sealed, to improve the leakproofness of earthquake omnidirectional vector divergence wave detector.
The present invention realizes the entity structure of divergence theorem of Gauss, forms the seismic survey space structure of divergence measurement.
It present invention can be suitably applied to the application scenarios such as land artificial earthquake exploration, natural subsoil and foundation.It is sweared using the earthquake omnidirectional of the present invention
Measure divergence wave detector can detect seismic wave divergence, and can find out wave field direction of vibration and real amplitude, can obtain it is richer
Rich seismic wave divergence information.
The divergence feature of earthquake omnidirectional vector divergence wave detector is positioned over earth's surface freedom for the wave detector of rigidity supporting structure
Feature when surface.When wave detector is positioned over underground or media interior, these features will be supported by placement environment, wave detector
Structural material and its with extraneous contact relation and determine.It can be designed with the variation of concrete application purpose.The present invention is not done in detail
It describes in detail bright.
Seismic wave detection is carried out using earthquake omnidirectional vector divergence wave detector, is a kind of seismic wave detection side of brand new ideas
Method can develop the earthquake-capturing of brand new ideas, processing, means of interpretation, form completely new seismic exploration technique series.Not only
Be improve signal-to-noise ratio, sensitivity, fidelity new technology.To the technology further research and application, it will there is more technologies
The discovery of feature is the technical field of a completely new invention, discovery, development.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Describe in detail it is bright, it should be understood that the above is only a specific embodiment of the present invention, the guarantor being not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection domain of invention.
Claims (11)
1. a kind of earthquake omnidirectional vector divergence wave detector, which is characterized in that including：Four wave detectors and support construction, the branch
Support structure is used to support four wave detectors so that the bottom surface of four wave detectors is located at a positive tetrahedron wherein
On one equilateral triangle face, the working shaft of each wave detector is located at the equilateral triangle face with the intersection point in corresponding equilateral triangle face
Center, and the extended line of working shaft of four wave detectors intersects with the body center of positive tetrahedron, constitutes working shaft and is directed toward
Divide the three-dimensional vector structure of three dimensions.
2. earthquake omnidirectional vector divergence wave detector according to claim 1, which is characterized in that the wave detector is cylinder electricity
Magnetic-type wave detector, the bottom surface of each cylinder electromagnetic type wave detector are each inspection at a distance from the body geometric center of the positive tetrahedron
The non-touching minimum value of wave device.
3. earthquake omnidirectional vector divergence wave detector according to claim 1, which is characterized in that the wave detector is flat electricity
Appearance type wave detector.
4. earthquake omnidirectional vector divergence wave detector according to claim 1, which is characterized in that the four of four wave detectors
A space vector meets Gauss divergence formula.
5. earthquake omnidirectional vector divergence wave detector according to claim 1, which is characterized in that the amplitude of the wave detector is rung
It answers, it is the wave detector that the relationship of angle theta, which is out (t)=A (t) cos θ, wherein A (t), between itself working shaft and wave field normal
Response in θ=0 to wave field.
6. earthquake omnidirectional vector divergence wave detector according to claim 1, which is characterized in that connected in the support construction
The extended line of one conical tail bone, the axis of the conical tail bone is vertically worn behind a vertex of the positive tetrahedron
Cross the center in one of positive tetrahedron face.
7. earthquake omnidirectional vector divergence wave detector according to claim 6, which is characterized in that earthquake omnidirectional vector dissipates
Spending wave detector further includes：Spherical shell is divided into upper semispherical shell and lower half spherical shell, four wave detectors and the branch
Support structure is placed on inside the spherical shell, and the bottom setting tail bone hole of the lower half spherical shell, the tail bone passes through institute
State the tail bone hole of lower half spherical shell.
8. earthquake omnidirectional vector divergence wave detector according to claim 7, which is characterized in that the upper semispherical shell and
The edge of the lower half spherical shell is respectively arranged with mutually matched protruding portion, the upper semispherical shell and the lower semisphere
The protruding portion of shape shell is fixed by fixation kit.
9. earthquake omnidirectional vector divergence wave detector according to claim 7, which is characterized in that be arranged on the spherical shell
The signal output line of signal string holes, each wave detector passes through the signal string holes.
10. earthquake omnidirectional vector divergence wave detector according to claim 9, which is characterized in that the spherical shell it is upper
Joint gap, the tail bone hole between hemispherical shell and lower half spherical shell and the signal string holes, with silica gel or rubber
Glue material seals waterproof.
11. earthquake omnidirectional vector divergence wave detector according to claim 1, which is characterized in that the support construction is just
Each face of four sides support structure, the positive tetrahedron support construction is arbitrary surface or plane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713070.6A CN105388516B (en) | 2015-10-28 | 2015-10-28 | Seismic omnidirectional vector divergence detector |
| PCT/CN2016/099824 WO2017071437A1 (en) | 2015-10-28 | 2016-09-23 | Omni-directional vector divergence seismic wave detector |
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| CN201510713070.6A CN105388516B (en) | 2015-10-28 | 2015-10-28 | Seismic omnidirectional vector divergence detector |
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| CN105388516B true CN105388516B (en) | 2018-09-04 |
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| CN116592987B (en) * | 2023-07-17 | 2023-09-26 | 中国特种设备检测研究院 | In-plane omnidirectional wave field vector detection method and device |
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| GB2419410B (en) * | 2004-10-20 | 2008-05-21 | Vetco Gray Controls Ltd | Sensor configuration |
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