CN102289001B - Leveling device for gravimeter - Google Patents
Leveling device for gravimeter Download PDFInfo
- Publication number
- CN102289001B CN102289001B CN 201110125929 CN201110125929A CN102289001B CN 102289001 B CN102289001 B CN 102289001B CN 201110125929 CN201110125929 CN 201110125929 CN 201110125929 A CN201110125929 A CN 201110125929A CN 102289001 B CN102289001 B CN 102289001B
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- flow liquid
- magnetic flow
- hung
- gravity meter
- gravity
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Abstract
The invention discloses a leveling device for a gravimeter. The leveling device comprises a suspension ring, a cross knife is arranged below the suspension ring, a plumbing rod is arranged below the cross knife and falls naturally under the action of gravity. A gravity meter is arranged below the plumbing rod, a resistance wheel is arranged below the gravity meter and is soaked in magnetorheological fluid, and a lower end of a magnetorheological fluid container is provided with an electromagnet. Since the plumbing rod is free and can slightly swing, when the electromagnet current is slowly increased, the resistance from the magnetorheological fluid to the resistance wheel is gradually increased until the plumbing rod stops swinging; and the electromagnet current is further increased, the magnetorheological fluid is solidified, thus the process of finding and locking a plumb line is finished.
Description
Technical field
The present invention relates to a kind of alignment device for gravity meter, is the instrument of measuring the relative gravity acceleration.
Background technology
Now generally adopt the spring gravimeter of static method to measure the gravity difference.A lot of to the research of this instrument in the world, develop very fast, no matter be mensuration precision or the comfort level of use has all reached high level.General precision can reach tens little gals, even several little gal.In decades, popular or most widely used sensor has two kinds in the world: a kind of inclination distance of zero mark metal spring sensor that designs as the basis take La Coste and Romberg invention " zero-initial-length spring " thought, its masterpiece are at present in the world most widely used LaCoste and Romberg metal-spring gravimeter; Another kind is quartzy zero-initial-length spring sensor, and such as the full-automatic gravity meter of CG3 type of Dary (Scientrex) company of Canada elder generation, China is the Worden gravity meter of used Canadian World2Wide gravity meter and the U.S. once.The sensor of a kind of " design of virtual bomb spring " in addition.It utilizes magnetic suspension thing rather than spring, has realized the identical effect as the spring instrument, and has not had shortcoming intrinsic in the physics spring.In this system, measurement makes heavy burden be suspended to needed voltage at zero point, just obtains the gravimetry value.
The measurement of acceleration of gravity need to be found a pedal line or surface level, and by mechanical adjustment mode complex structure, the centering process was slow in the past.
Summary of the invention
Technical matters to be solved by this invention provides a kind of alignment device for gravity meter, and its structural design is ingenious, and cost is low, and is simple in structure, can realize realizing fast the vertical alignment device of gravity meter.
The present invention is achieved by the following technical solutions:
A kind of alignment device for gravity meter is characterized in that: include suspension ring, cross-shaped knife and the plumbing bar of suspension, the horizontal cutter on the described cross-shaped knife is hung and is hung on the suspension ring, and the top of described plumbing bar is provided with link, and link is hung and is hung on the longitudinal knife of cross-shaped knife; The plumbing bar below is hung with gravity meter, and the gravity meter bottom is provided with resistance wheel, and resistance wheel is immersed in the magnetic flow liquid.
Described a kind of alignment device for gravity meter, it is characterized in that: the below of described gravity meter is provided with the magnetic flow liquid container, is loaded with magnetic flow liquid in the magnetic flow liquid container.
Described a kind of alignment device for gravity meter is characterized in that: described magnetic flow liquid container bottoms is provided with electromagnet.
Described magnetic flow liquid can be controlled by magnet current the resistance of resistance wheel.
Principle of work of the present invention is:
Plumbing bar among the present invention is freely, slight swing is arranged under Action of Gravity Field, at this moment, slowly increase electromagnet current, magnetic flow liquid progressively strengthens the resistance of resistance wheel, stops swinging at last, at this moment, further strengthen electromagnet current, magnetic flow liquid solidifies, and finishes the process that finds pedal line and locking.
Advantage of the present invention is:
The ingenious precision of structural design of the present invention, by the viscosity controllable characteristics of magnetic flow liquid, resistance progressively, the centering process is fast, and is simple in structure, and manufacturing technology is ripe.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
A kind of alignment device for gravity meter includes suspension ring 1, cross-shaped knife 2 and the plumbing bar 3 of suspension, and the horizontal cutter on the described cross-shaped knife 2 is hung and is hung on the suspension ring 1, and the top of described plumbing bar 3 is provided with link, and link is hung and is hung on the longitudinal knife of cross-shaped knife 2; Plumbing bar 3 belows are hung with gravity meter 4, and gravity meter 4 bottoms are provided with resistance wheel 5.
The below of gravity meter 4 is provided with magnetic flow liquid container 6, is loaded with magnetic flow liquid in the magnetic flow liquid container 6.Resistance wheel 5 is immersed in the magnetic flow liquid.Magnetic flow liquid container 6 bottom surfaces are provided with electromagnet 7.
Because plumbing bar 3 is freely, the suspension that plumbing bar 3, gravity meter 4 and resistance wheel 5 form under Action of Gravity Field has slight swing, at this moment, slowly increase the electric current of electromagnet 7, magnetic flow liquid progressively strengthens the resistance of resistance wheel 5, stops swinging at last, at this moment, further strengthen the electric current of electromagnet 7, magnetic flow liquid solidifies, and finishes the process that finds pedal line and locking.
Claims (1)
1. alignment device that is used for gravity meter, it is characterized in that: include suspension ring, cross-shaped knife and the plumbing bar of suspension, the horizontal cutter on the described cross-shaped knife is hung and is hung on the suspension ring, and the top of described plumbing bar is provided with link, and link is hung and is hung on the longitudinal knife of cross-shaped knife; The plumbing bar below is hung with gravimetry mechanism, and gravimetry mechanism bottom is provided with resistance wheel, and resistance wheel is immersed in the magnetic flow liquid; The below of described gravimetry mechanism is provided with the magnetic flow liquid container, is loaded with magnetic flow liquid in the magnetic flow liquid container; Described magnetic flow liquid container bottoms is provided with electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110125929 CN102289001B (en) | 2011-05-16 | 2011-05-16 | Leveling device for gravimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110125929 CN102289001B (en) | 2011-05-16 | 2011-05-16 | Leveling device for gravimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102289001A CN102289001A (en) | 2011-12-21 |
| CN102289001B true CN102289001B (en) | 2013-01-30 |
Family
ID=45335561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110125929 Expired - Fee Related CN102289001B (en) | 2011-05-16 | 2011-05-16 | Leveling device for gravimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102289001B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1163299A1 (en) * | 1982-08-17 | 1985-06-23 | Специальное Конструкторское Бюро Геофизического Приборостроения Института Геологии Ан Азсср | Device for levelling transducer of borehole gravimeter |
| US5204568A (en) * | 1991-09-23 | 1993-04-20 | Gwr Instruments | Superconducting bearing for borehole and survey gravimeters |
| CN101387319A (en) * | 2008-10-23 | 2009-03-18 | 上海交通大学 | Toughness changing gravity compensating mechanism for magnetic rheological liquid |
| CN201402957Y (en) * | 2009-03-02 | 2010-02-10 | 于韶红 | Automatic aligning type double-vertical-frame payoff rack |
| CN101769731A (en) * | 2010-01-26 | 2010-07-07 | 浙江大学 | Gravity balance device and method of flexible coordinate measuring machine based on magnetic rheologic fluid |
-
2011
- 2011-05-16 CN CN 201110125929 patent/CN102289001B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1163299A1 (en) * | 1982-08-17 | 1985-06-23 | Специальное Конструкторское Бюро Геофизического Приборостроения Института Геологии Ан Азсср | Device for levelling transducer of borehole gravimeter |
| US5204568A (en) * | 1991-09-23 | 1993-04-20 | Gwr Instruments | Superconducting bearing for borehole and survey gravimeters |
| CN101387319A (en) * | 2008-10-23 | 2009-03-18 | 上海交通大学 | Toughness changing gravity compensating mechanism for magnetic rheological liquid |
| CN201402957Y (en) * | 2009-03-02 | 2010-02-10 | 于韶红 | Automatic aligning type double-vertical-frame payoff rack |
| CN101769731A (en) * | 2010-01-26 | 2010-07-07 | 浙江大学 | Gravity balance device and method of flexible coordinate measuring machine based on magnetic rheologic fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102289001A (en) | 2011-12-21 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20160516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |