CN109799543B - Gravity meter storage rack and storage method thereof - Google Patents
Gravity meter storage rack and storage method thereof Download PDFInfo
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- CN109799543B CN109799543B CN201811545403.9A CN201811545403A CN109799543B CN 109799543 B CN109799543 B CN 109799543B CN 201811545403 A CN201811545403 A CN 201811545403A CN 109799543 B CN109799543 B CN 109799543B
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Abstract
The invention relates to a gravity meter storage rack and a storage method thereof, wherein the gravity meter storage rack comprises a placing plate, leveling mechanisms, a checking mechanism and an auxiliary power supply mechanism, the leveling mechanisms are uniformly arranged at the lower end of the placing plate along the circumferential direction of the placing plate, the checking mechanism is arranged on the upper end surface of the placing plate, the auxiliary power supply mechanism is arranged between the leveling mechanisms, the auxiliary power supply mechanism comprises placing boxes, the placing boxes are arranged between the leveling mechanisms, a standby power supply is arranged in each placing box, a control box is arranged on the upper end surface of each standby power supply, and a mains supply wire is discharged from the upper end surface of each control box. The gravity meter storage rack can solve the problems that no reference or inspection mechanism is arranged when the storage rack is used for regulating the level of the gravity meter, no standby power supply is used for supplying power to the gravity meter once power failure occurs, and the like, can realize the functions of level verification of the gravity meter storage rack and power supply of the standby power supply, and has the advantages of high level precision of the storage rack and continuous power supply of the standby power supply when power failure occurs.
Description
Technical Field
The invention relates to the field of surveying, in particular to a gravimeter storage rack and a storage method thereof.
Background
The gravimeter is a measuring instrument for determining the gravity acceleration, and is widely used in the work of measuring the earth gravitational field, observing solid tide, observing crustal deformation, and exploring gravity.
Because the gravity meter belongs to the precision instrument, want to make the gravity meter can obtain the most accurate measured value, the gravity meter need when depositing with instrument adjustment level, keep the on-state and deposit in dry safe place, and under the prior art condition, the depositing of gravity meter still has the problem:
the first problem is that: in the prior art, the storage of the gravimeter is that the gravimeter is placed on a tripod, then the tripod is adjusted horizontally, the tripod is only determined by centering bubbles on a horizontal disc when being adjusted horizontally, no horizontal reference or inspection device is provided, and errors are easy to exist;
the second problem is that: the instrument needs to be always connected with a power supply, and once the instrument is powered off, no protective measures or standby power supplies are provided for supplying power to the instrument, so that the accuracy of the gravimeter is influenced.
The storage aspect of the gravimeter is explored and practiced in China, and the Chinese patent with the patent application number of 201410553249.5 discloses an electric balance gravimeter support which has the advantages of simple structure, convenience in operation, rapidness, accuracy and the like. The invention also aims at the aspect that the gravimeter needs to be kept balanced, and does not consider the problems of horizontal verification and power supply when the gravimeter is stored, so that a placing frame is needed to be designed for storing the gravimeters.
Disclosure of Invention
In order to solve the problems, the invention provides a gravity meter storage rack and a storage method thereof, which can solve the problems that no reference or inspection mechanism exists when a storage rack is adjusted to be horizontal during gravity meter storage, power failure occurs once, no standby power supply supplies power for the gravity meter, and the like, can realize the functions of horizontal verification of the gravity meter storage rack and power supply of the standby power supply, and have the advantages of high horizontal precision of the storage rack and continuous power supply of the standby power supply during power failure.
In order to achieve the purpose, the invention adopts the following technical scheme that the gravity meter storage rack comprises a placing plate, leveling mechanisms, a checking mechanism and an auxiliary power supply mechanism, wherein the leveling mechanisms are uniformly arranged at the lower end of the placing plate along the circumferential direction of the placing plate, the checking mechanism is arranged on the upper end surface of the placing plate, and the auxiliary power supply mechanism is arranged between the leveling mechanisms.
The auxiliary power supply mechanism including placing the box, install between the leveling mechanism and place the box, place and install stand-by power supply in the box, control box is installed to stand-by power supply's up end, control box's up end has the commercial power wire to discharge, the left end of commercial power wire is connected with commercial power control switch's right side, the right-hand member of commercial power wire is connected with the 220v power, control box's right-hand member face has the control wire to discharge, the left end of control wire is connected with the right-hand member of electromagnetic plate, the right-hand member of control wire is connected with the 220v power, install the control branch chain in the control box, in operation, the power failure condition takes place for the commercial power, stand-by power supply can replace the commercial power to continue to supply power for the gravimeter can remain throughout when.
As a preferred technical scheme of the present invention, the control branch chain includes a mains supply control switch, the inner wall of the upper end of the control box is provided with the mains supply control switch, the left side of the mains supply control switch is connected with the right end of the power supply lead, the inner wall of the lower end of the control box is provided with the power supply control switch, the left side of the power supply control switch is connected with the power supply lead through the auxiliary lead, the right side of the power supply control switch is connected with the standby power supply through the power supply lead, and a controller is arranged between the mains supply control switch and the.
As a preferred technical scheme of the invention, the controller comprises a mounting plate, the right side of the inner wall of the upper end of the control box is provided with the mounting plate, the lower end surface of the mounting plate is provided with an electromagnetic plate, the lower end surface of the electromagnetic plate is adsorbed with a magnet, the magnet is arranged in the middle of the upper end surface of the control plate, the left end of the upper end surface of the control plate is provided with an upper conductive block through an insulating seat, the left end of the lower end surface of the control plate is provided with a lower conductive block through an insulating seat, the right end of the control plate is hinged with the upper end of a support rod through a hinge rod, the lower end of the support rod is arranged on the inner wall of the lower end of the control box, when the utility power supply works, the electromagnetic plate is electrified and has magnetism to adsorb the magnet, the upper conductive block moves upwards to enter a utility power control switch under the action, magnet whereabouts after the electromagnetism board outage, the control panel also landing downwards, under the effect of hinge bar, down the conducting block enters into power control switch, stand-by power supply and power supply wire switch-on, stand-by power supply and gravimeter switch-on promptly to can guarantee when meetting the power failure, gravimeter can remain the on-state all the time.
The utility model discloses a check-up box, including the check-up box, place the mid-mounting of board up end and have the check-up box, the inside of check-up box is hollow structure, the middle part of check-up box lateral wall is equipped with the observation window, installs the case on the up end of check-up box, the middle part of case is equipped with the storage tank, the front end of case up end is equipped with the socket, the socket is connected with supplementary power supply mechanism through the power supply wire, the mid-mounting of the inside up end of check-up box has the check-up branch.
The calibration branched chain comprises a connecting rod, the inner wall of the upper end of the calibration box is hinged with the connecting rod, the lower end of the connecting rod is provided with a pendulum ball which is made of iron, the lower end of the outer side wall of the pendulum ball is provided with a calibration infrared lamp, the inner wall of the upper end of the calibration box is uniformly hinged with a hinged ball along the circumferential direction of the connecting rod, the lower end of the hinged ball is provided with a magnet plate, the magnetic poles of one surface of the magnet plate facing the pendulum ball are the same, the middle part of the inner wall of the lower end of the calibration box is provided with a calibration plate, the upper end surface of the calibration plate is provided, when the placing plate is adjusted to be horizontal, the magnet plate can accelerate the stability of the pendulum ball, whether the light of the checking infrared lamp is just hit in the checking hole can be observed through the observation window, the placing plate is adjusted according to the verification result, so that the placing plate with the adjusted level can be verified, and the horizontal error value of the placing plate is greatly reduced.
As a preferred technical scheme of the invention, the leveling mechanism comprises a horizontal disc, the right side of the upper end surface of the placing plate is provided with the horizontal disc, the lower end surface of the placing plate is provided with a leveling screw rod through a bearing, the upper end of the side wall of the leveling screw rod is provided with the leveling disc, the lower end of the side wall of the leveling screw rod is in threaded connection with the upper end of the supporting column, the lower end surface of the supporting column is provided with a supporting disc, when the leveling mechanism works, the left side leveling mechanism is kept still when the placing plate is leveled, only the right side leveling mechanism and the front side leveling mechanism are adjusted, and the leveling disc is rotated to level the placing plate according to the trend of.
In addition, the invention also provides a storage method of the gravimeter storage rack, which comprises the following specific steps:
step one, leveling a placing plate: firstly, placing a gravimeter in a storage tank, keeping a left leveling mechanism still when leveling a placing plate, only adjusting a right leveling mechanism and a front leveling mechanism, and rotating a leveling disk to level the placing plate according to the direction of bubbles in a horizontal disk;
step two, carrying out calibration after the board is leveled: after the placing plate is adjusted to be horizontal, the magnet plate can accelerate the stability of the pendulum ball, whether the light of the verification infrared lamp is just hit in the verification hole or not can be observed through the observation window, and the placing plate is adjusted according to the verification result;
step three, when the mains supply is normal: the electromagnetic plate is electrified and has magnetism, so that the magnet can be adsorbed, the upper conductive block moves upwards to enter the mains supply control switch under the action of the hinged rod after the magnet is adsorbed, the mains supply is connected with the power supply lead, and the mains supply is communicated with the gravity meter;
step four, when the mains supply is powered off: magnet whereabouts after the electromagnetism board outage, the control panel also landing downwards, under the effect of hinge bar, down conducting block enters into power control switch, stand-by power supply and power supply wire switch-on, stand-by power supply and gravimeter switch-on promptly.
The work flow can solve the problems that the horizontal adjustment of the placement rack does not have any reference or inspection mechanism when the gravimeter is stored, power failure occurs once, no standby power supply supplies power for the gravimeter and the like, and can realize the functions of horizontal verification of the gravimeter storage rack and power supply of the standby power supply.
The invention has the beneficial effects that:
the gravity meter storage rack can solve the problems that no reference or inspection mechanism exists when the storage rack is used for adjusting the level of the gravity meter, power failure occurs once, no standby power supply supplies power for the gravity meter, and the like, can realize the functions of level verification of the gravity meter storage rack and power supply of the standby power supply, and has the advantages of high level precision of the storage rack and continuous power supply of the standby power supply in power failure.
The leveling mechanism is arranged, and can level the placing plate of the gravimeter;
the calibration mechanism is arranged and can calibrate the horizontally adjusted placing plate, so that the horizontal error of the placing plate is reduced, and the placing verticality of the gravimeter is guaranteed;
the gravity meter is provided with the auxiliary power supply mechanism, and when the mains supply is powered off, the auxiliary power supply mechanism can supply power for the gravity meter, so that the gravity meter can be always kept in a power connection state.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a first configuration of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
fig. 3 is a schematic structural view between the power supply wire and the auxiliary power supply mechanism (except for the placement box) of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 3, a gravimeter storage rack includes a placing plate 1, leveling mechanisms 2, a checking mechanism 3 and an auxiliary power supply mechanism 4, the leveling mechanisms 2 are uniformly installed at the lower end of the placing plate 1 along the circumferential direction of the placing plate, the checking mechanism 3 is installed on the upper end face of the placing plate 1, and the auxiliary power supply mechanism 4 is installed between the leveling mechanisms 2.
The auxiliary power supply mechanism 4 comprises a placing box 41, the placing box 41 is installed between the leveling mechanisms 2, a standby power supply 42 is installed in the placing box 41, a control box 43 is installed on the upper end face of the standby power supply 42, a mains supply lead 44 is discharged from the upper end face of the control box 43, the left end of the mains supply lead 44 is connected with the right side of a mains supply control switch 461, the right end of the mains supply lead 44 is connected with a 220v power supply, a control lead 45 is discharged from the right end face of the control box 43, the left end of the control lead 45 is connected with the right end of an electromagnetic plate 52, the right end of the control lead 45 is connected with the 220v power supply, a control branch 46 is installed in the control box 43, when the auxiliary power supply mechanism works, the standby power supply 42 can replace the mains supply to continue to supply power for the gravimeter, and the gravimeter can be always kept.
The control branch 46 includes a commercial power control switch 461, the commercial power control switch 461 is mounted on the inner wall of the upper end of the control box 43, the left side of the commercial power control switch 461 is connected with the right end of the power supply wire 35, the right side of the commercial power control switch 461 is connected with the left end of the commercial power wire 44, the inner wall of the lower end of the control box 43 is mounted with a power control switch 462, the left side of the power control switch 462 is connected with the power supply wire 35 through an auxiliary wire 463, the right side of the power control switch 462 is connected with the standby power supply 42 through a power wire 464, and a controller 5 is arranged between the commercial power control switch 461.
The controller 5 comprises a mounting plate 51, the mounting plate 51 is mounted on the right side of the inner wall of the upper end of the control box 43, an electromagnetic plate 52 is mounted on the lower end surface of the mounting plate 51, the right end of the electromagnetic plate 52 is connected with the left end of the control wire 45, a magnet 53 is adsorbed on the lower end surface of the electromagnetic plate 52, the magnet 53 is mounted in the middle of the upper end surface of the control plate 54, an upper conductive block 55 is mounted on the left end of the upper end surface of the control plate 54 through an insulating seat, a lower conductive block 56 is mounted on the left end of the lower end surface of the control plate 54 through an insulating seat, the right end of the control plate 54 is hinged with the upper end of a support rod 58 through a hinge rod 57, the lower end of the support rod 58 is mounted on the inner wall of the lower end of the control box 43, when the utility power is in normal operation, the electromagnetic plate 52 is electrified and has magnetism, the commercial power is connected with power supply conductor 35, namely the commercial power is communicated with the gravimeter, when the commercial power has a power failure, magnet 53 falls down after electromagnetic plate 52 is powered off, control plate 54 also slides down, lower conducting block 56 enters power supply control switch 462 under the action of hinged rod 57, standby power supply 42 is connected with power supply conductor 35, namely standby power supply 42 is connected with the gravimeter, and therefore the gravimeter can be guaranteed to be always kept in the power-on state when power failure occurs.
The checking branched chain 36 comprises a connecting rod 361, the inner wall of the upper end of the checking box 31 is hinged with the connecting rod 361, the lower end of the connecting rod 361 is provided with a swinging ball 362, the swinging ball 362 is made of iron, the lower end of the outer side wall of the swinging ball 362 is provided with a checking infrared lamp 363, the inner wall of the upper end of the checking box 31 is uniformly hinged with a hinged ball 364 along the circumferential direction of the connecting rod 361, the lower end of the hinged ball 364 is provided with a magnet plate 365, one side of the magnet plate 365 facing the swinging ball 362 has the same magnetic pole, the middle part of the inner wall of the lower end of the checking box is provided with a checking plate 366, the upper end surface of the checking plate 366 is provided with a checking hole, the checking hole is positioned under the checking infrared lamp 363, when the placing plate 1 is operated, after the placing plate 1 is adjusted to be horizontal, the magnet plate 365 can accelerate the stability of the swinging ball 362, therefore, the placing plate 1 with the horizontal adjustment can be checked, and the horizontal error value of the placing plate 1 is greatly reduced.
In addition, the invention also provides a storage method of the gravimeter storage rack, which comprises the following specific steps:
step one, leveling a placing plate 1: firstly, placing a gravimeter in a storage tank, keeping a left leveling mechanism 2 still when leveling a placing plate 1, only adjusting two leveling mechanisms 2 on the right side and the front side, and rotating a leveling disc 23 to level the placing plate 1 according to the trend of bubbles in a horizontal disc 21;
step two, the placing plate 1 is leveled and then verified: after the placing plate 1 is adjusted horizontally, the magnet plate 365 can accelerate the stabilization of the swinging ball 362, whether the light rays of the check infrared lamp 363 are just hit in the check hole can be observed through the observation window 32, and the placing plate 1 is adjusted according to the check result;
step three, when the mains supply is normal: the electromagnetic plate 52 is electrified and has magnetism, so that the magnet 53 can be adsorbed, the upper conductive block 55 moves upwards to enter the mains supply control switch 461 under the action of the hinged rod 57 after the magnet 53 is adsorbed, the mains supply is connected with the power supply lead 35, and the mains supply is communicated with the gravimeter;
step four, when the mains supply is powered off: after the electromagnetic plate 52 is powered off, the magnet 53 falls, the control plate 54 also falls downward, the lower conductive block 56 enters the power control switch 462 under the action of the hinge rod 57, and the standby power supply 42 is connected with the power supply lead 35, namely, the standby power supply 42 is connected with the gravimeter.
In conclusion, the work flow realizes the functions of level checking of the gravity meter storage rack and power supply of the standby power supply 42, solves the problems that the rack does not have any reference or checking mechanism when the gravity meter is stored, power is off once, and the standby power supply 42 does not supply power to the gravity meter, and the like, and achieves the purpose.
The invention has been described in detail with reference to the embodiments illustrated in the drawings, and it is to be understood that variations and equivalent arrangements may be resorted to by those skilled in the art having the benefit of the teachings herein.
Claims (7)
1. The utility model provides a gravity appearance storage rack, is including placing board (1), levelling mechanism (2), calibration mechanism (3) and supplementary power supply mechanism (4), its characterized in that: leveling mechanisms (2) are uniformly arranged at the lower end of the placing plate (1) along the circumferential direction of the placing plate, a checking mechanism (3) is arranged on the upper end face of the placing plate (1), and an auxiliary power supply mechanism (4) is arranged between the leveling mechanisms (2); wherein:
the auxiliary power supply mechanism (4) comprises placing boxes (41), the placing boxes (41) are installed between the leveling mechanisms (2), a standby power supply (42) is installed in the placing boxes (41), a control box (43) is installed on the upper end face of the standby power supply (42), a mains supply lead (44) is arranged on the upper end face of the control box (43) to discharge, a control lead (45) is arranged on the right end face of the control box (43) to discharge, and a control branch chain (46) is installed in the control box (43);
the checking mechanism (3) comprises a checking box (31), the checking box (31) is installed in the middle of the upper end face of the placing plate (1), the checking box (31) is of a hollow structure, an observation window (32) is arranged in the middle of the side wall of the checking box (31), a storage box (33) is installed on the upper end face of the checking box (31), a storage groove is formed in the middle of the storage box (33), a socket (34) is arranged at the front end of the upper end face of the storage box (33), the socket (34) is connected with the auxiliary power supply mechanism (4) through a power supply lead (35), and a checking branched chain (36) is installed on the inner wall of the checking box (31);
the checking branch chain (36) comprises a connecting rod (361), the inner wall of the upper end of the checking box (31) is hinged with the connecting rod (361), a pendulum ball (362) is installed at the lower end of the connecting rod (361), a checking infrared lamp (363) is installed at the lower end of the outer side wall of the pendulum ball (362), a hinged ball (364) is uniformly hinged to the inner wall of the upper end of the checking box (31) along the circumferential direction of the connecting rod (361), a magnet plate (365) is installed at the lower end of the hinged ball (364), and a checking plate (366) is installed on the inner wall of the lower end of;
leveling mechanism (2) including horizontal dish (21), place the up end right side of board (1) and install horizontal dish (21), place the lower terminal surface of board (1) and install leveling screw (22) through the bearing, leveling dish (23) are installed to the upper end of leveling screw (22) lateral wall, the lower extreme of leveling screw (22) lateral wall and the upper end threaded connection of support column (24), supporting disk (25) are installed to the lower terminal surface of support column (24).
2. A gravimeter storage rack according to claim 1, characterized in that: the control branch chain (46) comprises a mains supply control switch (461), the inner wall of the upper end of the control box (43) is provided with the mains supply control switch (461), the left side of the mains supply control switch (461) is connected with the right end of the power supply lead (35), the inner wall of the lower end of the control box (43) is provided with the power supply control switch (462), the left side of the power supply control switch (462) is connected with the power supply lead (35) through an auxiliary lead (463), the right side of the power supply control switch (462) is connected with the standby power supply (42) through a power supply lead (464), and a controller (5) is arranged between the mains supply control switch (461) and the power supply control switch (462).
3. A gravimeter storage rack according to claim 2, characterized in that: controller (5) including mounting panel (51), mounting panel (51) are installed on the right side of control box (43) upper end inner wall, electromagnetic plate (52) are installed to the lower terminal surface of mounting panel (51), magnet (53) have been adsorbed to the lower terminal surface of electromagnetic plate (52), the middle part at control panel (54) up end is installed in magnet (53), conducting block (55) are installed through the insulating seat to the left end of control panel (54) up end, conducting block (56) down are installed through the insulating seat to the left end of control panel (54) terminal surface down, the right-hand member of control panel (54) is articulated through articulated rod (57) and the upper end of bracing piece (58), the lower extreme of bracing piece (58) is installed on control box (43) lower extreme inner wall.
4. A gravimeter storage rack according to claim 3, characterized in that: the left end of the commercial power lead (44) is connected with the right side of the commercial power control switch (461), the right end of the commercial power lead (44) is connected with a 220v power supply, the left end of the control lead (45) is connected with the right end of the electromagnetic plate (52), and the right end of the control lead (45) is connected with the 220v power supply.
5. A gravimeter storage rack according to claim 4, characterized in that: the pendulum ball (362) is made of iron, and the magnetic poles of the magnet plate (365) facing the pendulum ball (362) are the same.
6. A gravimeter storage rack according to claim 5, characterized in that: the upper end face of the checking plate (366) is provided with checking holes, and the checking holes are located right below the checking infrared lamp (363).
7. The method of claim 6, wherein the storage rack comprises: the method mainly comprises the following steps:
step one, leveling a placing plate (1): firstly, a gravimeter is placed in a storage groove, a left leveling mechanism (2) is kept still when a placing plate (1) is leveled, only two leveling mechanisms (2) on the right side and the front side are adjusted, and a leveling disc (23) is rotated to adjust the placing plate (1) horizontally according to the trend of bubbles in a horizontal disc (21);
step two, the placing plate (1) is leveled and then verified: when the placing plate (1) is adjusted to be horizontal, the magnet plate (365) can accelerate the stability of the swinging ball (362), whether light rays of the checking infrared lamp (363) are just hit in the checking hole or not can be observed through the observation window (32), and the placing plate (1) is adjusted according to a checking result;
step three, when the mains supply is normal: the electromagnetic plate (52) is electrified and has magnetism, the magnet (53) can be adsorbed, the upper conductive block (55) moves upwards to enter the mains supply control switch (461) under the action of the hinged rod (57) after the magnet (53) is adsorbed, the mains supply is connected with the power supply lead (35), and the mains supply is communicated with the gravimeter;
step four, when the mains supply is powered off: after the electromagnetic plate (52) is powered off, the magnet (53) falls, the control plate (54) also slides downwards, the lower conductive block (56) enters the power control switch (462) under the action of the hinged rod (57), the standby power supply (42) is connected with the power supply lead (35), and the standby power supply (42) is connected with the gravimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545403.9A CN109799543B (en) | 2018-12-17 | 2018-12-17 | Gravity meter storage rack and storage method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545403.9A CN109799543B (en) | 2018-12-17 | 2018-12-17 | Gravity meter storage rack and storage method thereof |
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| CN109799543A CN109799543A (en) | 2019-05-24 |
| CN109799543B true CN109799543B (en) | 2020-09-08 |
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| CN208107560U (en) * | 2018-05-04 | 2018-11-16 | 商丘师范学院 | One kind having multi-functional surveying instrument supporting frame |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120267503A1 (en) * | 2011-04-21 | 2012-10-25 | Gribble James E | Self-leveling, gravity-stabilized, sliding and tilting support for a chair |
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|---|---|---|---|---|
| WO2014018324A1 (en) * | 2012-07-25 | 2014-01-30 | Micro-G Lacoste, Inc. | Interferometric gradiometer apparatus and method |
| CN104360406A (en) * | 2014-10-17 | 2015-02-18 | 同济大学 | Support of electric balancing gravity meter |
| CN204166143U (en) * | 2014-11-10 | 2015-02-18 | 吉林大学 | A kind of self-level(l)ing device of 3-component earthquake detector |
| CN205278702U (en) * | 2015-12-16 | 2016-06-01 | 华中科技大学 | Support is measured in accurate leveling of intelligence |
| CN105527655A (en) * | 2016-03-14 | 2016-04-27 | 中国科学院测量与地球物理研究所 | Marine gravimeter stabilizing platform leveling device and method |
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| CN109799543A (en) | 2019-05-24 |
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