CN109471189A - A kind of nonlinear measurement platform of gravity gradient - Google Patents
A kind of nonlinear measurement platform of gravity gradient Download PDFInfo
- Publication number
- CN109471189A CN109471189A CN201811247164.9A CN201811247164A CN109471189A CN 109471189 A CN109471189 A CN 109471189A CN 201811247164 A CN201811247164 A CN 201811247164A CN 109471189 A CN109471189 A CN 109471189A
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- support column
- trident
- support plate
- gravity gradient
- connector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V7/00—Measuring gravitational fields or waves; Gravimetric prospecting or detecting
Abstract
The invention discloses a kind of nonlinear measurement platform of gravity gradient, including upper support column, the quantity of upper support column is three, and the internal whorl of upper support column is connected with lower support column.The present invention passes through setting upper support column, lower support column, second support column connector, second trident support plate, first support column connector, first trident support plate, third support column connector and third trident support plate are used cooperatively, keep the nonlinear measurement platform of gravity gradient convenient for disassembly and assembly, stable structure, it is easy to learn, carrying convenience, measuring table can be by obtaining the gravity numerical value of different level position and multiple height using mechanical device simultaneously, multiple height substantially envisage the nonlinear change of gravimetric data, the result of gravity gradient is calculated by least square fitting, the gravity gradient data that gradiometry platform obtains has higher resolution ratio for the variable density of underground, the distributed intelligence of geologic body can be described more accurately.
Description
Technical field
The present invention relates to gradiometry technical field, the nonlinear measurement platform of specially a kind of gravity gradient.
Background technique
Earth gravitational field reflects interior material composition and distributed intelligence, can be with by precise measurement earth gravitational field
Inverting estimates the distribution and variation of substance, and therefore, High-Precision Gravimeter Survey is in Basic quota, regional gravity survey, big
Ground measurement, oil gas field and the fields such as Exploration of solid mineral resources and Gravity-aided navigation are with important application prospects, the earth
Gravity field measurement can be divided into gravity measurement and gradiometry, realize that gravimetric instrument is known as gravimeter, be measurement ground
Ball acceleration of gravity realizes that gradiometry is known as gravity gradiometer, is variation of the measurement terrestrial gravitation acceleration with space,
That is gravity gradient, since gravity gradient is the space differentiation of earth gravitational field, reflection gravity along space different directions change rate,
Therefore compared with gravimeter measurement, on the one hand, gradiometry is able to reflect the details of field source body, has higher resolution
Rate；On the other hand, gravity gradiometer generallys use difference measurement mode, not by the carrier under movement environment for being unfavorable for gravimeter
Acceleration influences, and for the gravity measuring system of ground, is based on the weight on moving base carrier (such as aircraft, motorboat, naval vessel)
Force gradient measurement has many advantages, such as that economical, efficient, depth of exploration is big.
In gravimetric prospecting field, gradiometry data are important data, but there are no maturations in China now
The instrument and equipment of gradiometry is directly carried out, therefore gravity is obtained using the gravity measurement of different location, different height
Gradient data obtains gravity horizontal and vertical gradient by the measurement of multiposition and more height using high-precision relative gravity instrument
Data.
Current existing gradiometry device contributes to vertical gradient of gravity measurement, can not carry out gravity horizontal
Gradiometry, and gravity disposition gradiometry is usually carried out only with two different heights, and vertical gradient of gravity is non-linear
Data, error calculated are big；Measurement process is often non-simultaneous measurement, and the ambient noise of measurement result is larger, to obtain more
Gradiometry platform for the gravity gradient numerical value of accurate different directions, this invention fully considers the non-of data variation
Linear design, measurement obtain the gradiometry platform of multiple height and multilevel position.
Summary of the invention
The purpose of the present invention is to provide a kind of nonlinear measurement platforms of gravity gradient, have the non-linear of gravity gradient
Measuring table can measure multi-direction gravity gradient simultaneously and carry out non-linear vertical gradient of gravity measurement advantage, solve gravity ladder
Degree measuring device can not obtain gravity vertically and horizontally gradient data, using two different heights carry out vertical gradient of gravity data
Calculate that gradiometry environmental noise error caused by error is big, non-synchronization measures, working space is narrow and operation is multiple
Miscellaneous problem.
To achieve the above object, the invention provides the following technical scheme: a kind of nonlinear measurement platform of gravity gradient, packet
Upper support column is included, the quantity of the upper support column is three, and the internal whorl of the upper support column is connected with lower support column, institute
The bottom end of lower support column is stated through upper support column and extends to the outside of upper support column, the surface activity connection of the upper support column
There is the first support column connector, the quantity of the first support column connector is three, between two first support column connectors
Fixation is connected with the first trident support plate, and the surface activity of the upper support column is connected with the second support column connector, institute
The quantity for stating the second support column connector is three, and the support of the second trident is connected between two second support column connectors
Plate, the surface activity of the lower support column are connected with third support column connector, and the quantity of the third support column connector is
Three, two thirds support and are connected with third trident support plate, the right side of the third trident support plate between column connectors
Side is connected with horizontally-supported sheet-pile association.
Preferably, the bottom end of the lower support column and horizontally-supported sheet-pile association is provided with scalable landing leg, institute
It states scalable landing leg and supports column connector to be flexibly connected with lower support column by third.
Preferably, the spacing between the first trident support plate, the second trident support plate and third trident support plate is
The center of 1000mm, the upper support column and lower support column respectively with the first trident support plate, the second trident support plate and third
The horizontal distance at trident support plate center is 500mm, and the length of the horizontally-supported sheet-pile association is 1200mm.
Preferably, the surface of the first trident support plate, the second trident support plate and third trident support plate is opened out
Equipped with foot prop placement hole, three forks of the first trident support plate, the second trident support plate and third trident support plate are each other
Between angle be 120 °.
Preferably, the upper support column, lower support column, the first trident support plate, the second trident support plate, third trident branch
Fagging and horizontally-supported sheet-pile association are all made of titanium alloy and are made, and the diameter of the upper support column and lower support column is
The total length of 40mm, the upper support column and lower support column is 100mm, the first trident support plate, the support of the second trident
Plate and the thickness of third trident support plate are 10mm.
Preferably, the surface of the first trident support plate, the second trident support plate and third trident support plate is respectively provided with
There is level(l)ing bubble, the center of three level(l)ing bubbles is maintained on same plummet straight line.
Preferably, the bottom of the scalable landing leg is provided with foot nail, and the quantity of the foot nail is two.
Preferably, the bottom of the first trident support plate is fixedly connected with screw, the inner wall of the screw and horizontal branch
The surface of fagging column association is threadedly coupled.
Compared with prior art, beneficial effects of the present invention are as follows:
1, the present invention passes through setting upper support column, lower support column, the second support column connector, the second trident support plate, the
One supports being used cooperatively for column connector, the first trident support plate, third support column connector and third trident support plate, makes weight
The nonlinear measurement platform of force gradient is convenient for disassembly and assembly, and stable structure is easy to learn, carrying convenience, and measuring table can pass through benefit
Obtain the gravity numerical value of different level position and multiple height simultaneously with mechanical device, multiple height substantially envisage gravity
The nonlinear change of data, by least square fitting calculating gravity gradient as a result, the weight that gradiometry platform obtains
Force gradient data have higher resolution ratio for the variable density of underground, can more accurately describe the distributed intelligence of geologic body.
2, the present invention is by being arranged scalable landing leg, in field mountainous region area in use, can be adjusted and penetrate ground
Face keeps gravimetric non-linear platform holding horizontal, improves the stability of measurement, passes through foot prop placement hole and three fork folders
120 ° of angle setting, convenient for disposing the foot prop of relative gravity meter, for the use of relative gravity meter, by the way that level is arranged
Bubble can be such that the first trident support plate, the second trident support plate and third trident support plate is maintained on same plummet straight line,
By using the first trident support plate, the second trident support plate made of titanium alloy and third trident support plate, weight can be increased
The stability of the nonlinear measurement platform of force gradient can make horizontally-supported sheet-pile association wheel measuring more by the way that screw is arranged
The horizontal gradient in a direction.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structure of the invention top view；
Fig. 3 is structure of the invention side view.
In figure: 1 upper support column, 2 lower support columns, 3 first support column connectors, 4 first trident support plates, 5 second supports
Column connector, 6 thirds support column connector, 7 second trident support plates, 8 third trident support plates, 9 horizontally-supported sheet-pile joints
Body, 10 scalable landing legs, 11 foot prop placement holes, 12 level(l)ing bubbles, 13 feet nail, 14 screws.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, a kind of nonlinear measurement platform of gravity gradient, including upper support column 1, the number of upper support column 1
Amount is three, and the internal whorl of upper support column 1 is connected with lower support column 2, lower support column 2 and horizontally-supported sheet-pile association 9
Bottom end be provided with scalable landing leg 10, scalable landing leg 10 passes through third and supports column connector 6 and lower support column 2 living
Dynamic connection, in field mountainous region area in use, ground can be adjusted and be penetrated, makes weight by the way that scalable landing leg 10 is arranged
The non-linear platform of power measurement keeps horizontal, improves the stability of measurement, and the bottom of scalable landing leg 10 is provided with foot nail 13,
The quantity of foot nail 13 is two, and the bottom end of lower support column 2 runs through upper support column 1 and extends to the outside of upper support column 1, upper support
The surface activity of column 1 is connected with the first support column connector 3, and the quantity of the first support column connector 3 is three, two first
Fixation is connected with the first trident support plate 4 between dagger connector 3, and the bottom of the first trident support plate 4 is fixedly connected with
Screw 14, the inner wall of screw 14 are threadedly coupled with the surface of horizontally-supported sheet-pile association 9, by the way that screw 14 is arranged, can make water
The horizontal gradient of flat support 9 wheel measuring multiple directions of sheet-pile association, the surface activity of upper support column 1 are connected with the second support
The quantity of column connector 5, the second support column connector 5 is three, and the is connected between two second support column connectors 5
Two trident support plates 7, the surface activity of lower support column 2 are connected with third support column connector 6, and third supports column connector 6
Quantity is three, is connected with third trident support plate 8, the first trident support plate between two third support column connectors 6
4, the spacing between the second trident support plate 7 and third trident support plate 8 is 1000mm, in upper support column 1 and lower support column 2
Horizontal distance of the heart respectively with 8 center of the first trident support plate 4, the second trident support plate 7 and third trident support plate be
500mm, the length of horizontally-supported sheet-pile association 9 are 1200mm, the first trident support plate 4, the second trident support plate 7 and third
The surface of trident support plate 8 offers foot prop placement hole 11, the first trident support plate 4, the second trident support plate 7 and third
Angle is 120 ° between three forks of trident support plate 8, is arranged by foot prop placement hole 11 and three 120 ° of angle of fork,
Convenient for disposing the foot prop of relative gravity meter, for the use of relative gravity meter, the first trident support plate the 4, the 2nd 3
The surface of fork support plate 7 and third trident support plate 8 is provided with level(l)ing bubble 12, and the center of three level(l)ing bubbles 12 is maintained at
On same plummet straight line, by the way that level(l)ing bubble 12 is arranged, the first trident support plate 4, the second trident support plate 7 and third can be made
Trident support plate 8 is maintained on same plummet straight line, and the right side of third trident support plate 8 is connected with horizontally-supported sheet-pile connection
Zoarium 9, upper support column 1, lower support column 2, the first trident support plate 4, the second trident support plate 7, third trident support plate 8 and water
Flat support sheet-pile association 9 is all made of titanium alloy and is made, and the diameter of upper support column 1 and lower support column 2 is 40mm, upper support column
1 and the total length of lower support column 2 be 100mm, the first trident support plate 4, the second trident support plate 7 and third trident support plate
8 thickness is 10mm, by using the first trident support plate 4, the second trident support plate 7 made of titanium alloy and third trident
Support plate 8 can increase the stability of the nonlinear measurement platform of gravity gradient, by setting upper support column 1, lower support column 2,
Second support column connector 5, the second trident support plate 7, first support column connector 3, the first trident support plate 4, third support
Being used cooperatively for column connector 6 and third trident support plate 8, keeps the nonlinear measurement platform of gravity gradient convenient for disassembly and assembly, structure
Stablize, easy to learn, carrying convenience, measuring table can be by obtaining different level position and more using mechanical device simultaneously
The gravity numerical value of a height, multiple height substantially envisage the nonlinear change of gravimetric data, pass through least square fitting meter
Calculate gravity gradient as a result, gradiometry platform obtain gravity gradient data for underground variable density have it is higher
Resolution ratio, the distributed intelligence of geologic body can be described more accurately.
In use, it is two groups that upper support column 1 and lower support column 2, which are divided to, every group each three, under two groups of upper support columns 1 and two groups
It is separately connected between support column 2 by three second support column connectors 5 and a second trident support plate 7, upper support column 1
Upper end is connected with the first support column connector 3 and the first trident support plate 4, and the lower end of lower support column 2 is connected with third support column
Device 6 and third trident support plate 8 connect, three layers of upper, middle and lower of the first trident support plate 4, the second trident support plate 7 and the three or three
The center of fork support plate 8 is maintained on same plummet straight line, the lower end of three lower support columns 2 and horizontally-supported sheet-pile association 9
Platform end be provided with scalable landing leg 10, keep the nonlinear measurement platform of gravity gradient convenient for disassembly and assembly, stable structure, simply
Easy to learn, carrying convenience, measuring table can be by obtaining different level position and multiple height using mechanical device simultaneously
Gravity numerical value, multiple height substantially envisage the nonlinear change of gravimetric data, calculate gravity ladder by least square fitting
Degree as a result, gradiometry platform obtain gravity gradient data for underground variable density have higher resolution
Rate can more accurately describe the distributed intelligence of geologic body.
In summary: the nonlinear measurement platform of the gravity gradient is supported by upper support column 1, lower support column 2, second
Column connector 5, the second trident support plate 7, first support column connector 3, the first trident support plate 4, third support column connector 6
With the cooperation of third trident support plate 8, solve gradiometry device can not obtain gravity vertically and horizontally gradient data,
Gradient caused by big, non-synchronization measures using two different heights progress vertical gradient of gravity data calculating errors is surveyed
Measure the narrow and complicated for operation problem of environmental noise error, working space.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of nonlinear measurement platform of gravity gradient, including upper support column (1), it is characterised in that: the upper support column (1)
Quantity be three, the internal whorl of the upper support column (1) is connected with lower support column (2), the bottom of the lower support column (2)
End is through upper support column (1) and extends to the outside of upper support column (1), and the surface activity of the upper support column (1) is connected with the
The quantity of one support column connector (3), first support column connector (3) is three, two first support column connectors (3)
Between fixation be connected with the first trident support plate (4), the surface activity of the upper support column (1) is connected with the second support column
The quantity of connector (5), second support column connector (5) is three, activity between two second support column connectors (5)
It is connected with the second trident support plate (7), the surface activity of the lower support column (2) is connected with third support column connector (6), institute
The quantity for stating third support column connector (6) is three, is connected with the three or three between two third supports column connector (6)
It pitches support plate (8), is connected with horizontally-supported sheet-pile association (9) on the right side of the third trident support plate (8).
2. a kind of nonlinear measurement platform of gravity gradient according to claim 1, it is characterised in that: the lower support column
(2) it is provided with scalable landing leg (10) with the bottom end of horizontally-supported sheet-pile association (9), the scalable landing leg (10)
It is flexibly connected by third support column connector (6) with lower support column (2).
3. a kind of nonlinear measurement platform of gravity gradient according to claim 1, it is characterised in that: first trident
Spacing between support plate (4), the second trident support plate (7) and third trident support plate (8) is 1000mm, the upper support column
(1) it is supported respectively with the first trident support plate (4), the second trident support plate (7) and third trident with the center of lower support column (2)
The horizontal distance at plate (8) center is 500mm, and the length of the horizontally-supported sheet-pile association (9) is 1200mm.
4. a kind of nonlinear measurement platform of gravity gradient according to claim 1, it is characterised in that: first trident
The surface of support plate (4), the second trident support plate (7) and third trident support plate (8) offers foot prop placement hole (11),
Three forks of the first trident support plate (4), the second trident support plate (7) and third trident support plate (8) press from both sides each other
Angle is 120 °.
5. a kind of nonlinear measurement platform of gravity gradient according to claim 1, it is characterised in that: the upper support column
(1), lower support column (2), the first trident support plate (4), the second trident support plate (7), third trident support plate (8) and horizontal branch
Fagging column association (9) is all made of titanium alloy and is made, and the diameter of the upper support column (1) and lower support column (2) is 40mm, institute
The total length for stating upper support column (1) and lower support column (2) is 100mm, the first trident support plate (4), the second trident branch
Fagging (7) and the thickness of third trident support plate (8) are 10mm.
6. a kind of nonlinear measurement platform of gravity gradient according to claim 1, it is characterised in that: first trident
The surface of support plate (4), the second trident support plate (7) and third trident support plate (8) is provided with level(l)ing bubble (12), described
The center of three level(l)ing bubbles (12) is maintained on same plummet straight line.
7. a kind of nonlinear measurement platform of gravity gradient according to claim 2, it is characterised in that: described scalable to fall
The bottom of lower margin (10) is provided with foot nail (13), and the quantity of the foot nail (13) is two.
8. a kind of nonlinear measurement platform of gravity gradient according to claim 2, it is characterised in that: first trident
The bottom of support plate (4) is fixedly connected with screw (14), the inner wall of the screw (14) and horizontally-supported sheet-pile association (9)
Surface is threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811247164.9A CN109471189A (en) | 2018-10-18 | 2018-10-18 | A kind of nonlinear measurement platform of gravity gradient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811247164.9A CN109471189A (en) | 2018-10-18 | 2018-10-18 | A kind of nonlinear measurement platform of gravity gradient |
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| Publication Number | Publication Date |
|---|---|
| CN109471189A true CN109471189A (en) | 2019-03-15 |
Family
ID=65665922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811247164.9A Pending CN109471189A (en) | 2018-10-18 | 2018-10-18 | A kind of nonlinear measurement platform of gravity gradient |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2327193C2 (en) * | 1990-03-19 | 2008-06-20 | Камский научно-исследовательский институт комплексных исследований глубоких и сверхглубоких скважин Горный институт Уральского отделения АН СССР | Device to determine horizontal gradient of 2nd-order pull of gravity |
| CN205067767U (en) * | 2015-11-04 | 2016-03-02 | 中国人民解放军信息工程大学 | Gravity vertical gradient measurement bay |
| EP3037849A1 (en) * | 2014-12-22 | 2016-06-29 | AOSense, Inc. | Gradiometer configuration invariant to laser phase noise and sensor rotations |
| CN206546444U (en) * | 2017-02-28 | 2017-10-10 | 中国人民解放军第一测绘导航基地时空基准队 | The vertical gradient of gravity measurement apparatus that a kind of height and direction are freely set |
| CN206546443U (en) * | 2017-02-28 | 2017-10-10 | 中国人民解放军第一测绘导航基地时空基准队 | A kind of large space vertical gradient of gravity measurement apparatus being freely lifted |
-
2018
- 2018-10-18 CN CN201811247164.9A patent/CN109471189A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2327193C2 (en) * | 1990-03-19 | 2008-06-20 | Камский научно-исследовательский институт комплексных исследований глубоких и сверхглубоких скважин Горный институт Уральского отделения АН СССР | Device to determine horizontal gradient of 2nd-order pull of gravity |
| EP3037849A1 (en) * | 2014-12-22 | 2016-06-29 | AOSense, Inc. | Gradiometer configuration invariant to laser phase noise and sensor rotations |
| CN205067767U (en) * | 2015-11-04 | 2016-03-02 | 中国人民解放军信息工程大学 | Gravity vertical gradient measurement bay |
| CN206546444U (en) * | 2017-02-28 | 2017-10-10 | 中国人民解放军第一测绘导航基地时空基准队 | The vertical gradient of gravity measurement apparatus that a kind of height and direction are freely set |
| CN206546443U (en) * | 2017-02-28 | 2017-10-10 | 中国人民解放军第一测绘导航基地时空基准队 | A kind of large space vertical gradient of gravity measurement apparatus being freely lifted |
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Application publication date: 20190315 |