CN2872323Y - Gravity measuring equipment - Google Patents
Gravity measuring equipment Download PDFInfo
- Publication number
- CN2872323Y CN2872323Y CN 200620080928 CN200620080928U CN2872323Y CN 2872323 Y CN2872323 Y CN 2872323Y CN 200620080928 CN200620080928 CN 200620080928 CN 200620080928 U CN200620080928 U CN 200620080928U CN 2872323 Y CN2872323 Y CN 2872323Y
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- CN
- China
- Prior art keywords
- probe
- cursory
- gravity
- floater
- shell
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- 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.)
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Abstract
The utility model relates to a gravity meter for measuring underground gravity field. The utility model comprises a measurement means and a data processing means. The measurement means consists of housing, hoisting ring fitted in upper part of the housing, and probe, floater and damping fluid fitted inside the housing. The probe includes an electric eddy current distance detector and its mating reflection surface. The data processing means is connected partially to the probe by wires, together with memory and display engageable with the electric eddy current distance detector. The floater is provided peripherally with righting cover filled with the damping fluid. Upper and lower shafts of said floater are provided respectively with magnetic rings, and shaft holes of the righting cover opposite to the shafts are also provided with magnetic rings. The floater is prefabricated with a cavity for loading balancing weights. The utility model is characterized in that the liquid-phase buoyancy equilibrium system realizes rapid and stable measurement, the righting device can eliminate the horizontal component of gravity, the electric eddy current distance detecting system ensures high-precision and rapid measurement, the supporter is suspended to automatically adjust the equilibration and thus to ensure the gravity center of the device is coincident with the gravity field.
Description
One, technical field: the utility model relates to a kind of gravimetry instrument of measuring underground gravity field.
Two, background technology: in traditional gravimetry, gravity meter is with the spring suspension weight, and the gravity value of measuring ground by stretching (contraction) amount of measuring spring changes.The subject matter of its existence shows that (one) owing to spring produces the creep that can't recover with the variation of pulling force in time, causes bigger gravimetry error.(2) spring type gravimeter is measured is one and has making a concerted effort of direction, can't directly measure the vertical component of gravity.(3) spring type gravimeter is long stabilization time, and measuring speed is slow.
Three, summary of the invention: the purpose of this utility model is exactly the defective that exists at prior art, provide a kind of, can fast, accurately, directly measure a kind of gravimetry instrument of the vertical component of gravity with the gravimetry device of liquid phase buoyant equilibrium system as the measurement main body.
Its technical scheme is: comprise that measure portion and data processing division are grouped into, wherein measure portion is made up of the suspension ring of shell, shell upper and the probe in the shell, liquid cursory, the band damping, probe adopts current vortex range finding probe and supporting reflecting surface to form, and data processing section is to be connected on the probe by lead with pop one's head in supporting storage and display of current vortex range finding.This measuring instrument also comprises support, and the suspension ring of measure portion are hung with support and cooperated.Described shell is to have the closed container that the nonmetallic materials of heat-insulation layer are made, and cursory periphery is provided with supporting positive cover, and goes up with cursory that the lower shaft portion level is spacing to be cooperated, and the liquid of band damping is contained in the supporting positive cover.Described cursory axial region up and down is respectively equipped with magnet ring, also is respectively equipped with magnet ring in the Dui Ying supporting positive cover axis hole with it.The cursory interior prefabricated cavity that has can load the counterweight counterweight in the cavity.
Effect of the present utility model: the cursory liquid phase buoyant equilibrium system of being made by nonmetallic materials that forms of (1) the band liquid of damping and adjustable weight can realize the measurement of fast and stable; (2) the cursory erection device of magnetic levitation can effectively be eliminated the horizontal component that gravity produces; (3) high precision measuring device of forming with the current vortex range measurement system makes measurement result fast, accurately; (4) nonmetallic materials shell and insulation material avoid external electromagnetic to produce interference; (5) the support suspension type is placed and can be adjusted balance automatically, keeps the instrument center of gravity consistent with gravity field.
Four, description of drawings: accompanying drawing is a structural representation of the present utility model.
Five, specific embodiment:
With reference to accompanying drawing, comprise that support, measure portion and data processing division are grouped into.Support 7 is made up of horizontal, vertical hack lever and base, and top suspension hook 8 is connected with the suspension ring of measure portion, keeps instrument to be in state perpendicular to the ground under action of gravity.Measure portion is made up of the liquid 14 of the probe 6 in the suspension ring of shell 9, shell upper and the shell 9, cursory 2, supporting positive cover 12, band damping.Shell 9 is to have the closed container that the nonmetallic materials of heat-insulation layer 10 are made.Cursory 2 periphery is provided with supporting positive cover 12, and the liquid 14 of band damping is contained in the supporting positive cover 12.Cursory about in the of 2 axial region be respectively equipped with magnet ring 4, also be respectively equipped with magnet ring 3 in the Dui Ying supporting positive cover axis hole with it.The cursory 2 interior prefabricated cavitys that have can load counterweight counterweight 13 in the cavity.Probe 6 adopts current vortex range finding probe and supporting reflecting surface to be fixed on supporting positive cover 12 and the cursory top by connecting link 11 respectively.Data processing section is to be connected on the probe 6 by lead 5 with supporting storage and the display 1 of current vortex range finding probe 6.
Its principle of work is, when Gravity changer, current vortex range finding probe is subjected to displacement with cursory, and probe changes Displacement Measurement and outputs to external iatron, and by the operator data recording is got off.Data are preserved by the integration type data-carrier store simultaneously, and data-carrier store can be with data transmission to computer stored and processing.Magnet ring on cursory and the magnet ring on the supporting positive cover constitute the magnetic force erection device, guarantee the cursory plumbness that is in.Cursoryly make, can adjust weight by nonmetallic materials.The adjustment of cursory weight can be adopted and add standard test weight (as: 1 gram counterweight) finish in its cavity.Cursory being suspended in the liquid of being with damping because the damping action of liquid can make the cursory state that restores balance very soon, shortened Measuring Time.This liquid can be the mineral oil of viscosity 1-100 centipoise.Shell is made up of nonmetallic materials, reduces the interference of external electromagnetic field to instrument.Insulation material makes the induction system of instrument be in relative temperature constant state, reduces the influence of temperature to measured value.The suspension ring at instrument support and instrument top are formed self-level(l)ing device.
The measuring principle of gravity vertical component: when being subjected to action of gravity and moving upward, it produces the component F1 of a vertical direction and the component F2 of a horizontal direction when cursory, and the horizontal component F2 of gravity becomes a pair of acting force and reacting force at the magnetic force centralizing system.The vertical component F1 of gravity makes cursory generation upper and lower displacement, and therefore, the measured variation of instrument promptly is the vertical component of gravity, and vertical component can be described the Gravity changer of underground ore body more accurately, and delineation ore body distribution range has wide application.
Claims (5)
1, a kind of gravimetry instrument, it is characterized in that: comprise that measure portion and data processing division are grouped into, wherein measure portion is made up of the suspension ring of shell, shell upper and the probe in the shell, liquid cursory, the band damping, probe adopts current vortex range finding probe and supporting reflecting surface to form, and data processing section is to be connected on the probe by lead with pop one's head in supporting storage and display of current vortex range finding.
2, gravimetry instrument according to claim 1, it is characterized in that: this measuring instrument also comprises support, the suspension ring of measure portion are hung with support and are cooperated.
3, gravimetry instrument according to claim 1 and 2, it is characterized in that: described shell is to have the closed container that the nonmetallic materials of heat-insulation layer are made, cursory periphery is provided with supporting positive cover, and goes up with cursory that the lower shaft portion level is spacing to be cooperated, and the liquid of band damping is contained in the supporting positive cover.
4, gravimetry instrument according to claim 3 is characterized in that: described cursory axial region up and down is respectively equipped with magnet ring, also is respectively equipped with magnet ring in the Dui Ying supporting positive cover axis hole with it.
5, gravimetry instrument according to claim 3 is characterized in that: the cursory interior prefabricated cavity that has can load the counterweight counterweight in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620080928 CN2872323Y (en) | 2006-02-09 | 2006-02-09 | Gravity measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620080928 CN2872323Y (en) | 2006-02-09 | 2006-02-09 | Gravity measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872323Y true CN2872323Y (en) | 2007-02-21 |
Family
ID=37740672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620080928 Expired - Fee Related CN2872323Y (en) | 2006-02-09 | 2006-02-09 | Gravity measuring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872323Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402298A (en) * | 2015-12-29 | 2016-03-16 | 中国科学院测量与地球物理研究所 | Balanced feedback system of electromagnetic damper |
| CN111060032A (en) * | 2019-10-25 | 2020-04-24 | 石家庄铁道大学 | Optical fiber grating inclinometer |
| CN111060031A (en) * | 2019-10-25 | 2020-04-24 | 石家庄铁道大学 | Optical fiber grating inclinometer |
-
2006
- 2006-02-09 CN CN 200620080928 patent/CN2872323Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402298A (en) * | 2015-12-29 | 2016-03-16 | 中国科学院测量与地球物理研究所 | Balanced feedback system of electromagnetic damper |
| CN105402298B (en) * | 2015-12-29 | 2018-02-02 | 中国科学院测量与地球物理研究所 | Electromagnetic damper equilibrium feedback system |
| CN111060032A (en) * | 2019-10-25 | 2020-04-24 | 石家庄铁道大学 | Optical fiber grating inclinometer |
| CN111060031A (en) * | 2019-10-25 | 2020-04-24 | 石家庄铁道大学 | Optical fiber grating inclinometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |