CN108775891A - A kind of rangefinder - Google Patents
A kind of rangefinder Download PDFInfo
- Publication number
- CN108775891A CN108775891A CN201811044705.8A CN201811044705A CN108775891A CN 108775891 A CN108775891 A CN 108775891A CN 201811044705 A CN201811044705 A CN 201811044705A CN 108775891 A CN108775891 A CN 108775891A
- Authority
- CN
- China
- Prior art keywords
- placement
- resistance
- rangefinder
- supporting rod
- inner ring
- Prior art date
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 77
- 238000001514 detection method Methods 0.000 claims description 9
- 230000003028 elevating effect Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of rangefinders,By the way that gear is arranged,Detect ring,Inner ring,Outer shroud,Resistance band,Plummet and electric conductor,When supporting rod rotates band moving gear rotation,Gear moves inner ring rotation by detecting annulus,To make the relative position between the electric conductor and resistance band of plummet lower end change,The resistance value between the resistance band and electric conductor that resistance measuring instrument measures is set to change,To calculate the rotation angle of supporting rod,By the way that interior bar is arranged,Outer bar,Measure body and resistor stripe,When the telescopic rod in supporting rod elongates or shortens,Relative position between interior bar and outer bar changes,Position of the body on resistor stripe is measured to change,The resistance value between the resistor stripe that resistance measuring instrument measures and measurement body is set to change,To calculate the length of supporting rod,And then adjust the angle of rangefinder ontology,Realize automatic leveling.
Description
Technical field
The invention belongs to civil engineering technical field of mapping, and in particular to a kind of rangefinder.
Background technology
Rangefinder is common instrument in civil engineering mapping, when using rangefinder, can measure it is flat away from and oblique distance, when
Measure it is flat away from when, need first that carry out coarse adjustment flat for the holder to rangefinder, then on the basis of coarse adjustment is flat, fine tuning is carried out to rangefinder
It is flat, need the position for observing horizontal bubble that rangefinder is gradually adjusted to level in leveling, calibration process is slower；
For this problem, Chinese patent CN207471063U discloses a kind of whole station type electronic distance meter holder.Bottom
Stabilizer blade uses telescopic tripod, it is characterised in that holder is fixedly installed at the top of tripod, the holder includes pedestal and support
Plate, wherein：Flanged bearing is arranged in pedestal center, and the stabilizer blade connection of the bottom margin and extension tripod of flanged bearing protrusion is solid
It is fixed；Support plate is set above pedestal, and support plate side is hinged and is arranged pitching motor, gyroscope built in support plate with pedestal；Bottom
Screw lift, the microswitch of support plate bottom and lead screw contact position setting push button are additionally provided in seat；Pitching motor,
Gyroscope, screw lift and microswitch are connect with the controller being built in pedestal simultaneously；Setting is used at the top of support plate
The connecting elements of whole station type electronic distance meter is installed, can accurate quick leveling holder, facilitate whole station type electronic distance meter fast
It is fast, stablizing to carry out the work；
But the electronic distance meter holder is higher to the required precision of gyroscope, can reach leveling requirement in actual use
Gyroscope is often with high costs, it is therefore desirable to which a kind of cost is lower, it is easier to the rangefinder of popularization.
Invention content
According to the above-mentioned deficiencies of the prior art, it the technical problem to be solved by the present invention is to propose a kind of rangefinder, is used for
Above-mentioned whole or in which a technical problem are solved, there is the gradient for the placement bottom surface that can measure rangefinder, and according to this
The gradient, by the self-leveling effect of rangefinder.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of rangefinder, including rangefinder ontology and Working rack, rangefinder ontology is mounted at the top of Working rack, described
Working rack includes that supporting mechanism, detent mechanism, placement mechanism and slope measuring mechanism, detent mechanism are connected in supporting mechanism
Portion, placement mechanism are mounted on supporting mechanism upper end, and slope measuring mechanism is mounted on placement mechanism upper end.
Preferably, supporting mechanism includes supporting rod and fixed seat, and supporting rod is set as three, is connected to placement mechanism
Bottom, supporting rod bottom are equipped with shifting axle, and supporting rod is connect by shifting axle with fixed seat, and constitute rotatable knot with fixed seat
Structure, shifting axle outer ring are fixedly connected with the gear rotated with shifting axle, and gear engagement is connected with detection ring, and detection ring passes through belt
It is connected with inner ring, constitutes drive mechanism with inner ring, inner ring inner wall is equipped with resistance band, and resistance band is set as pasting with the inner wall of inner ring
The annular of conjunction, and resistance band is not closed end to end, one end of resistance band is electrically connected slope measuring mechanism, and the outside of inner ring is equipped with outer
Ring, is connected with lanyard at the top of outer shroud inner wall, and lanyard bottom end is connected with plummet, and plummet bottom is equipped with electric conductor, and plummet bottom
Electric conductor is contacted with the resistance band on inner ring inner wall, and electric conductor upper end is electrically connected slope measuring mechanism；
Telescopic rod is equipped in the middle part of supporting rod, telescopic rod includes interior bar and outer bar, and interior bar and outer bar flexible connection, composition can stretch
Shrinking structure, is equipped with resistor stripe on the outer wall of the interior bar, and one end of resistor stripe is electrically connected slope measuring mechanism, outer bar it is interior
Measurement body is installed on wall, body is measured and is contacted with resistor stripe, the upper end for measuring body is electrically connected slope measuring mechanism.
Preferably, slope measuring mechanism includes resistance measuring instrument, controller, regulation button and display screen, resistance measuring instrument,
Controller, regulation button and display screen are installed in above placement mechanism, and regulation button, display screen and resistance measuring instrument with
Controller is electrically connected, and resistance measuring instrument is electrically connected with supporting mechanism.
Preferably, placement mechanism includes mounting table and placement rack, and placement rack is mounted on above mounting table, and mounting table passes through liter
Drop bar is connect with placement rack, and elevating lever is set as four, and elevating lever is electrically connected with slope measuring mechanism.
Preferably, clamping mechanism is additionally provided on placement rack, clamping mechanism includes seat board, clamping nut and head clamp, clamping
Nut is mounted in seat board, and clamping nut one end is equipped with head clamp.
Preferably, clamping plate surface is covered with rubber.
Preferably, detent mechanism includes locating rod and positioning plate, and locating rod is connected to the middle part of supporting mechanism, and positioning plate connects
It is connected on the lower end of locating rod, and positioning plate is vertical with locating rod.
Preferably, locating rod is set as retractable structure.
Present invention has the advantages that:
1, the present invention is by being arranged gear, detection ring, inner ring, outer shroud, resistance band, plummet and electric conductor, when supporting rod revolves
When turning band moving gear rotation, gear moves inner ring by detecting annulus and rotates, to make the electric conductor of plummet lower end and resistance band it
Between relative position change, the resistance value between the resistance band and electric conductor that make resistance measuring instrument measure changes, from
And calculate the rotation angle of supporting rod.
2, the present invention is by being arranged interior bar, outer bar, measuring body and resistor stripe, when the telescopic rod in supporting rod elongates or shortens
When, the relative position between interior bar and outer bar changes, and measures position of the body on resistor stripe and changes, makes resistance measurement
Resistance value between the resistor stripe that instrument measures and measurement body changes, to calculate the length of supporting rod.
3, the present invention is by being arranged resistance measuring instrument, controller, regulation button and display screen, can according to resistance band with lead
Resistance, measurement body between electric body and the resistance between resistor stripe, calculate the gradient on the placement ground of rangefinder, and are sent to
Display screen is shown to be observed for user, and regulation button is used for for user's handover measurement oblique distance with flat away from making the whole station rangefinder more
It is easy to use.
Description of the drawings
The content expressed by this specification attached drawing and the label in figure are briefly described below：
Fig. 1 is the structural schematic diagram one of the specific implementation mode of the present invention.
Fig. 2 is the structural schematic diagram two of the specific implementation mode of the present invention.
Fig. 3 is partial structural diagram inside the supporting rod of the specific implementation mode of the present invention.
Fig. 4 is the side structure schematic view of the inner ring and outer shroud of the specific implementation mode of the present invention.
Fig. 5 is the structural schematic diagram of the outer bar and interior bar of the specific implementation mode of the present invention.
Specific implementation mode
Below by the description to embodiment, the shape of for example involved each component of specific implementation mode of the invention, structure
It makes, the mutual alignment between each section and connection relation, the effect of each section and operation principle, manufacturing process and the side of operating with
Method etc., is described in further detail, completeer to help those skilled in the art to have the inventive concept of the present invention, technical solution
Whole, accurate and deep understanding.
A kind of rangefinder, including rangefinder ontology 2 and Working rack 1, rangefinder ontology 2 are mounted on 1 top of Working rack,
The Working rack 1 includes supporting mechanism 11, detent mechanism 13, placement mechanism 14 and slope measuring mechanism, and detent mechanism 13 connects
It is connected on 11 middle part of supporting mechanism, placement mechanism 14 is mounted on 11 upper end of supporting mechanism, and slope measuring mechanism is mounted on placement mechanism
14 upper ends.
Specifically, supporting mechanism 11 includes supporting rod 111 and fixed seat 112, supporting rod 111 is set as three, connects respectively
It is connected on 14 bottom of placement mechanism, 111 bottom of supporting rod is equipped with shifting axle 113, and supporting rod 111 passes through shifting axle 113 and fixed seat
112 connections, and rotary structure is constituted with fixed seat 112,113 outer ring of shifting axle, which is fixedly connected with, to be rotated with shifting axle 113
Gear 114, the engagement of gear 114 are connected with detection ring 115, and detection ring 115 is connected with inner ring 117 by belt 116, with inner ring
117 constitute drive mechanism, and 117 inner wall of inner ring is equipped with resistance band, and resistance band is set as the ring being bonded with the inner wall of inner ring 117
Shape, and resistance band is not closed end to end, one end of resistance band is electrically connected slope measuring mechanism, and the outside of inner ring 117 is equipped with outer shroud
118,118 inner wall of outer shroud top is connected with lanyard, and lanyard bottom end is connected with plummet 119, and 119 bottom of plummet is equipped with electric conductor, and
The electric conductor of 119 bottom of plummet is contacted with the resistance band on 117 inner wall of inner ring, and electric conductor upper end is electrically connected slope measuring machine
Structure；
111 middle part of supporting rod is equipped with telescopic rod, and telescopic rod includes interior bar 121 and outer bar 122, and interior bar 121 and outer bar 122 are lived
Dynamic connection constitutes retractable structure, and resistor stripe is equipped on the outer wall of the interior bar 121, and one end of resistor stripe is electrically connected slope
Measuring mechanism is spent, is equipped on the inner wall of outer bar 122 and measures body 123, body 123 is measured and is contacted with resistor stripe, measure the upper of body 123
End is electrically connected slope measuring mechanism.
Specifically, slope measuring mechanism includes resistance measuring instrument, controller, regulation button and display screen, resistance measuring instrument,
Controller, regulation button and display screen are installed in 14 top of placement mechanism, and regulation button, display screen and resistance measuring instrument are equal
It is electrically connected with controller, resistance measuring instrument is electrically connected with supporting mechanism 11.
Specifically, placement mechanism 14 includes mounting table 141 and placement rack 142, placement rack 142 is mounted on mounting table 141
Side, mounting table 141 are connect by elevating lever 143 with placement rack 142, and elevating lever 143 is set as four, and elevating lever 143 and slope
Measuring mechanism is spent to be electrically connected.
Specifically, being additionally provided with clamping mechanism on placement rack 142, clamping mechanism includes seat board 144, clamping nut 145 and card
Tight plate 146, clamping nut 145 are mounted in seat board 144, and 145 one end of clamping nut is equipped with head clamp 146.
Specifically, 146 surface of head clamp is covered with rubber.
Specifically, detent mechanism 13 includes locating rod 131 and positioning plate 132, locating rod 131 is connected to supporting mechanism 11
Middle part, positioning plate 132 is connected to the lower end of locating rod 131, and positioning plate 132 is vertical with locating rod 131, locating rod 131 with put
It is vertical to set platform 141.
Specifically, locating rod 131 is set as retractable structure.
When user uses a kind of whole station rangefinder of the present invention, whole station rangefinder is placed on point distance measurement first
On position, and the positioning plate 132 of 141 bottom of mounting table is adjacent to ground, makes locating rod 131 perpendicular to ground, to rangefinder into
After row positioning, since the position ground of placement is likely located at inclined-plane, the angle to three supporting rods 111 of Working rack 1 is needed
Degree and collapsing length are adjusted, and so that whole station rangefinder is rested easily on ground, due to supporting rod 111 after placement
Angle and length change, due to being not under the influence of the gradient of the placement platform positioned at the top of supporting rod 111 on ground
Horizontality, the distance if necessary to measure horizontal direction then need that the angle of placement platform is adjusted；
When rotating the angle of supporting rod 111, the gear 114 installed on shifting axle 113 rotates with shifting axle 113, tooth
114 rotation of wheel drives the detection ring 115 being engaged with to rotate, and the detection rotation of ring 115 drives inner ring 117 to rotate by belt 116,
Since plummet 119 keeps sagging state, the electric conductor of 119 bottom of plummet under gravity after the rotation of inner ring 117
It changes with the contact point of resistance band, then corresponding change occurs for the resistance value that resistance measuring instrument measures, and is transferred to control
Device, controller can calculate the rotation angle of shifting axle 113 according to the resistance value；
When 111 adjustment length of supporting rod, the telescopic rod in supporting rod 111 is elongated and shortens, i.e. outer bar in telescopic rod
122 and the relative position of interior bar 121 change, resistor stripe movement of the measurements body 123 in outer bar 122 on 121 outer wall of interior bar is electric
Corresponding variation occurs for the resistance value that resistance measuring instrument measures, and is transferred to controller, and controller can be according to the measurement body 123 measured
Resistance value between resistor stripe, calculates the length of telescopic rod elongation, and then obtains the length of supporting rod 111；
Controller can be calculated according to three 111 respective angles of supporting rod and length three when whole station rangefinder is placed
The angle for the placed side that a supporting rod 111 is formed, that is, calculate the gradient on ground, after the gradient for calculating ground, controller can
The gradient is sent to display screen to show, when needing the direction of measurement being adjusted to level, controller can according to calculated
The face gradient, four liftings that 141 top of control mounting table connects elongate or shorten, and then adjust placement rack 142 and placement rack 142
The angle of the rangefinder ontology 2 of upper connection manually need not carry out leveling to placement rack 142.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress, or not improved this is sent out
Bright design and technical solution directly applies to other occasions, within protection scope of the present invention.The protection of the present invention
Range should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of rangefinder, it is characterised in that：Including rangefinder ontology and Working rack, rangefinder ontology is mounted on Working rack
Top, the Working rack include that supporting mechanism, detent mechanism, placement mechanism and slope measuring mechanism, detent mechanism are connected to
In the middle part of supporting mechanism, placement mechanism is mounted on supporting mechanism upper end, and slope measuring mechanism is mounted on placement mechanism upper end.
2. a kind of rangefinder according to claim 1, it is characterised in that：The supporting mechanism includes supporting rod and fixation
Seat, supporting rod are set as three, are connected to placement mechanism bottom, and supporting rod bottom is equipped with shifting axle, and supporting rod passes through shifting
Moving axis is connect with fixed seat, and constitutes rotary structure with fixed seat, and shifting axle outer ring, which is fixedly connected with, to be rotated with shifting axle
Gear, gear engagement are connected with detection ring, and detection ring is connected with inner ring by belt, drive mechanism are constituted with inner ring, in inner ring
Wall is equipped with resistance band, and resistance band is set as the annular being bonded with the inner wall of inner ring, and resistance band is not closed end to end, resistance band
One end is electrically connected slope measuring mechanism, and the outside of inner ring is equipped with outer shroud, lanyard is connected at the top of outer shroud inner wall, and lanyard bottom end connects
It is connected to plummet, plummet bottom is equipped with electric conductor, and the electric conductor of plummet bottom is contacted with the resistance band on inner ring inner wall, electric conductor
Upper end is electrically connected slope measuring mechanism；
Telescopic rod is equipped in the middle part of supporting rod, telescopic rod includes interior bar and outer bar, and interior bar and outer bar are flexibly connected, and constitute scalable knot
Structure, is equipped with resistor stripe on the outer wall of the interior bar, and one end of resistor stripe is electrically connected slope measuring mechanism, on the inner wall of outer bar
Measurement body is installed, body is measured and is contacted with resistor stripe, the upper end for measuring body is electrically connected slope measuring mechanism.
3. a kind of rangefinder according to claim 1, it is characterised in that：The slope measuring mechanism includes resistance measurement
Instrument, controller, regulation button and display screen, resistance measuring instrument, controller, regulation button and display screen are installed in placement mechanism
Top, and regulation button, display screen and resistance measuring instrument are electrically connected with controller, resistance measuring instrument is electrical with supporting mechanism
Connection.
4. a kind of rangefinder according to claim 1, it is characterised in that：The placement mechanism includes mounting table and placement
Seat, placement rack are mounted on above mounting table, and mounting table is connect by elevating lever with placement rack, and elevating lever is set as four, and rises
Bar is dropped to be electrically connected with slope measuring mechanism.
5. a kind of rangefinder according to claim 4, it is characterised in that：It is additionally provided with clamping mechanism on the placement rack, blocks
Tight mechanism includes seat board, clamping nut and head clamp, and clamping nut is mounted in seat board, and clamping nut one end is equipped with clamping
Plate.
6. a kind of rangefinder according to claim 5, it is characterised in that：The clamping plate surface is covered with rubber.
7. a kind of rangefinder according to claim 1, it is characterised in that：The detent mechanism includes locating rod and positioning
Plate, locating rod are connected to the middle part of supporting mechanism, and positioning plate is connected to the lower end of locating rod, and positioning plate is vertical with locating rod.
8. a kind of rangefinder according to claim 1, it is characterised in that：The locating rod is set as retractable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044705.8A CN108775891B (en) | 2018-09-07 | 2018-09-07 | Distance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044705.8A CN108775891B (en) | 2018-09-07 | 2018-09-07 | Distance measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108775891A true CN108775891A (en) | 2018-11-09 |
| CN108775891B CN108775891B (en) | 2024-02-13 |
Family
ID=64028943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811044705.8A Active CN108775891B (en) | 2018-09-07 | 2018-09-07 | Distance measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775891B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351476A (en) * | 2020-03-07 | 2020-06-30 | 智博兴(武汉)测绘有限公司 | Supporting and adjusting device for land survey |
| CN114136245A (en) * | 2021-11-30 | 2022-03-04 | 河海大学 | Road surface flatness detection device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691988A (en) * | 2009-10-12 | 2010-04-07 | 长沙理工大学 | Device for measuring elevation of bearing of turbo generator set |
| CN101846489A (en) * | 2009-03-23 | 2010-09-29 | Abb技术股份公司 | With device and the method for operating thereof of magnetoresistive transducer with the non-contact mode measuring position |
| CN107588759A (en) * | 2017-10-17 | 2018-01-16 | 安徽水利开发股份有限公司 | Smart electronicses gradiometer |
| CN107807350A (en) * | 2017-09-28 | 2018-03-16 | 公安部四川消防研究所 | A kind of Experimental Calibration system and its scaling method for being used to measure vertical Light deformation amount |
-
2018
- 2018-09-07 CN CN201811044705.8A patent/CN108775891B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846489A (en) * | 2009-03-23 | 2010-09-29 | Abb技术股份公司 | With device and the method for operating thereof of magnetoresistive transducer with the non-contact mode measuring position |
| CN101691988A (en) * | 2009-10-12 | 2010-04-07 | 长沙理工大学 | Device for measuring elevation of bearing of turbo generator set |
| CN107807350A (en) * | 2017-09-28 | 2018-03-16 | 公安部四川消防研究所 | A kind of Experimental Calibration system and its scaling method for being used to measure vertical Light deformation amount |
| CN107588759A (en) * | 2017-10-17 | 2018-01-16 | 安徽水利开发股份有限公司 | Smart electronicses gradiometer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351476A (en) * | 2020-03-07 | 2020-06-30 | 智博兴(武汉)测绘有限公司 | Supporting and adjusting device for land survey |
| CN114136245A (en) * | 2021-11-30 | 2022-03-04 | 河海大学 | Road surface flatness detection device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108775891B (en) | 2024-02-13 |
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Address after: 241000 No. 2, Beijing Road, Wuhu, Anhui Applicant after: Wuhu Mingyuan Electric Power Engineering Consulting Design Co.,Ltd. Address before: 241000 No. 2, Beijing Road, Wuhu, Anhui Applicant before: WUHU ZHONGAN POWER DESIGN INST Co.,Ltd. |
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