CN102778220A - Ruler combinative/composite water level for dual type observation - Google Patents
Ruler combinative/composite water level for dual type observation Download PDFInfo
- Publication number
- CN102778220A CN102778220A CN 201210246140 CN201210246140A CN102778220A CN 102778220 A CN102778220 A CN 102778220A CN 201210246140 CN201210246140 CN 201210246140 CN 201210246140 A CN201210246140 A CN 201210246140A CN 102778220 A CN102778220 A CN 102778220A
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- Prior art keywords
- altitude signal
- signal analyzer
- leveling
- chi
- altitude
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- 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
- G01C15/002—Active optical surveying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/02—Rulers with scales or marks for direct reading
- G01B3/04—Rulers with scales or marks for direct reading rigid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a ruler combinative/composite water level for dual type observation. The water level is provided with a columned ruler body (1) and a water level (6); a leveling staff (2) and an observation unit (3) capable of sliding up and down are fixed on a same columned surface of the columned ruler body (1); the observation unit (3) comprises an opposite-side altitude signal measurer (4) and an own-side altitude signal measurer (5) which are mutually and fixedly connected; and the collimation axis of the opposite-side altitude signal measurer (4) is parallel to that of the own-side altitude signal measurer (5) and the collimation axis is vertical to the leveling staff (2). Point-to-point direct leveling measurement is really realized; the selected points and arranged points are not limited by terrain and environment; and leveling measurement can be conveniently carried out on complex terrains, such as abrupt slopes, channels, rivers, and mountain areas.
Description
Technical field
The invention belongs to field of measuring technique, relate in particular to and a kind ofly can effectively improve leveling work efficient and reliability, do not receive the dual formula observation of terrain environment restriction to unify composite level with the chi appearance.
Background technology
At present, known leveling device is made up of a spirit-leveling instrument and two levelling staffs.Earlier two levelling staffs are placed ground A, B 2 points respectively during measurement, again spirit-leveling instrument is arranged on the centre position of 2 of A, B,, generally require spirit-leveling instrument to equate or about equally apart from the horizontal range of two levelling staffs in order to guarantee measuring accuracy.Utilize the horizontal line of sight of leveling back spirit-leveling instrument to sight the absolute altitude numerical value that reads two levelling staffs respectively, the difference of the high numerical value of institute's mark is the level discrepancy in elevation of 2 of ground A, B, if known wherein elevation, can be extrapolated the elevation of another point by the discrepancy in elevation.There is following problem in existing leveling measuring method:
(1) surveying work efficient and reliability are low
In the terrain environment of complicacy, realize the reasonable disposition of position between spirit-leveling instrument and the levelling staff, often expend a large amount of energy and time of survey crew, influence efficiency of measurement; Adopt a spirit-leveling instrument to measure; Can not the reliability that the discrepancy in elevation data of measuring are carried out many recording geometrys be checked; In order to improve the reliability of measurement of the level, often adopt to come and go to measure to check pattern, not only expend a large amount of energy and time of survey crew equally; Influence efficiency of measurement, and its reliability also can be difficult to guarantee because of human factor;
(2) measurement receives the terrain environment restriction
When running into complex-terrain environment such as abrupt slope, hollow, pool, irrigation canals and ditches, gully, rivers, mountain area, often can not spirit-leveling instrument be erected at the centre position of two levelling staffs, cause measurement of the level to implement.
Summary of the invention
The present invention is in order to solve the above-mentioned technical matters of existing in prior technology, to provide a kind of and can effectively improve leveling work efficient and reliability, not receiving the dual formula observation of terrain environment restriction to unify composite level with the chi appearance.
Technical solution of the present invention is: a kind of dual formula observation is with chi appearance unification composite level; Be provided with cylindricality chi body and level; On the same cylinder of cylindricality chi body, be fixed with levelling staff and the observing unit that can slide up and down; Said observing unit has the other side's altitude signal analyzer and the our altitude signal analyzer that is mutually permanently connected, and the collimation axis of the other side's altitude signal analyzer and our altitude signal analyzer is parallel to each other and is vertical with levelling staff.
Said level is the leveling monitoring device that is fixedly connected with the other side's altitude signal analyzer or our altitude signal analyzer; Said the other side's altitude signal analyzer, our altitude signal analyzer and leveling monitoring device join with digital signal processor respectively; On said cylindricality chi body, be provided with power module, regulate control knob and display screen, said digital signal processor and display screen and data transmission unit join.
Said the other side's altitude signal analyzer is or/and our altitude signal analyzer contains laser beam emitting device, and said levelling staff is laser induced scale, and said laser induced scale and digital signal processor join.
Said power module is positioned at the bottom of cylindricality chi body.
The both sides correspondence of said cylindricality chi body is provided with handle, and said adjusting control knob places on the handle.
Be connected to positioning unit with said digital signal processor.
The present invention separates the spirit-leveling instrument and the levelling staff that are provided with tradition to become one with uniting two into one; Can match and be used for dual formula observation; Promptly flatten synchronously, sight each other, equity observation, two-way checking; Really realized point-to-point direct levelling; Need not to consider the reasonable disposition of spirit-leveling instrument and levelling staff position distance with wasting time and energy, also because the reliability of pair observations system checks and no longer need come and go measurement, improved the work efficiency and the reliability of measurement of the level simultaneously; The reconnaissance of measurement of the level, layouting not limited by terrain environment, can under complex-terrain environment such as abrupt slope, hollow, pool, irrigation canals and ditches, gully, rivers, mountain area, implement measurement of the level easily.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the user mode figure of the embodiment of the invention 1.
Fig. 3, the 4th, the structural representation of the embodiment of the invention 2.
Fig. 5 is the schematic block circuit diagram of the embodiment of the invention 2.
Fig. 6 is the structural representation of the embodiment of the invention 3.
Fig. 7 is the schematic block circuit diagram of the embodiment of the invention 3.
Fig. 8 is the schematic block circuit diagram of the embodiment of the invention 4.
Embodiment
Embodiment 1:
As shown in Figure 1: 2 ~ 4 meters high cylindricality chi body 1 that useful metal, plastics or timber etc. are processed; On the same cylinder of cylindricality chi body 1, be fixed with the levelling staff 2 (common scale) and the observing unit 3 that can slide up and down; Can slide rail be installed at cylindricality chi body 1, the slide block on the observing unit 3 slides up and down and can be fixed on the slide rail according to the needs of different terrain to the horizontal line of sight height along slide rail.Observing unit 3 has and is mutually permanently connected and the other side's altitude signal analyzer 4 that collimation axis is parallel to each other, our altitude signal analyzer 5; The other side's altitude signal analyzer 4 adopts the telescope with aiming function; Place levelling staff 2 other, its collimation axis is vertical with levelling staff 2, and our altitude signal analyzer 5 adopts pointer etc.; Be oppositely arranged with levelling staff 2, promptly be arranged on the opposite face of levelling staff 2.Level 6 is fixedly connected and is installed in observing unit 3 belows, adopt axis with the vertical circular bubble of telescope collimation axis or/and the axis pipe level parallel with the telescope collimation axis.
The embodiment of the invention 1 is used in pairing, can realization dual formula observation as shown in Figure 2, and to measure the discrepancy in elevation of 2 of A, B, A be we, and B is the other side, and specifically the course of work is following:
(1). settle instrument: existing foot pin 11 is positioned over A, two measurement points of B, makes it firm.According to the direct observation of range of the discrepancy in elevation of A, two measurement points of B and manual work, the observing unit on the chi body 13 is adjusted to correct position.Existing auxiliary foot rest 12 is adjusted to appropriate length, utilizes hasp to connect auxiliary foot rest 12 and chi body 1, then chi body 1 is put down gently to foot pin 11, fix auxiliary foot rest 12.
(2). thick synchronously leveling: both sides all through flexible coarse adjustment and the auxiliary foot rest of spiral accurate adjustment, make the circular bubble bubble of level 6 placed in the middle.
(3). sight each other: both sides carry out dual formula observation, and target is slightly sighted with sight on the telescope tube and foresight each other each other, from telescope, observes, and focus to the light adjustment, make target clear, and sight the other side's levelling staff.
(4). finishing synchronously is flat: both sides all adjust the little spiral that inclines on the observing unit 3, make the pipe bubble of level 6 placed in the middle.
(5). equity observation: both sides carry out relatively independent equity observation simultaneously, and telescope can obtain the altitude information of the other side's (B point), utilizes pointer can read the altitude information of we's (A point), and the difference that A, B are 2 is the level difference.Observation need be carried out repeatedly (as three times) data and reads, if error margin is up to standard, then gets its average as measured value.
(6). two-way checking: exchange both sides' measurement data also checks both sides' measurement result, promptly according to code requirement the mutual deviation of both sides' measurement result is made the judge of whether transfiniting, and passes judgment on qualified commentaries on classics station and continues operation, passes judgment on defective then in the duplicate measurements of former station.
Embodiment 2:
Like Fig. 3, Fig. 4, shown in Figure 5: basic structure such as embodiment 1; Different is that levelling staff 2 adopts indium steel bar sign indicating number scales with embodiment 1; The other side's altitude signal analyzer 4 adopts the self leveling electron telescope with aiming function; We's altitude signal analyzer 5 adopts the microspur cameras, and camera lens is towards levelling staff 2, and the collimation axis of the other side's altitude signal analyzer 4, our altitude signal analyzer 5 is all vertical with levelling staff 2.Level 6 is the leveling monitoring devices that are connected with observing unit 3 relative fixed; The leveling monitoring device adopts high precision double-shaft tilt angle sensor (auspicious fragrant HCA526T); Its two sensitive axes are all vertical with levelling staff 2; And one of them is parallel with the other side's altitude signal analyzer 4 collimation axiss; The leveling monitoring device can be fixed on equally on the slide block or with the other side's altitude signal analyzer 4 or/and our altitude signal analyzer 5 and join, with the leveling state of dynamic monitoring the other side altitude signal analyzer 4 or our altitude signal analyzer 5 collimation axiss.
The other side's altitude signal analyzer 4 and our altitude signal analyzer 5 join with digital signal processor (DSP, ARM etc.); The output signal of leveling monitoring device 6 also joins with digital signal processor; On said cylindricality chi body 1, be provided with power module 7 (lithium iron battery etc.) and display screen 9, said digital signal processor joins with display screen 9 and data transmission unit.Battery can be installed on chi body 1 bottom, on the basis that guarantees reliable power supply, reduces the center of gravity of chi body 1, improves chi body 1 stability when upright; Display screen 9 can be touch display screen; Can will be used for regulating the touch key-press that the adjusting control knob 8 of controlling the other side's altitude signal analyzer 4, our altitude signal analyzer 5, leveling monitoring device etc. is set at touch display screen; Touch key-press capable of using is realized mutual input; Display interface (electron telescope image, leveling monitoring picture, state indication, data presentation, Control-Menu etc.) can be provided again simultaneously; Digital signal processor adopts the FLASH storer to preserve data, realizes that through software the rod reading survey is read, measurement data exchange and functions such as handling, check.Data transmission unit can be made up of audio codec (CODEC) and wireless data transfer modules such as ZigBee, RF, accomplishes data transmission such as voice, figure, numeral.
The course of work is basic identical with embodiment 1, and difference is following:
Settle instrument: the position of observing unit 3 does not receive the restriction of survey crew height, and adjustable range is whole chi body 1.
Thick synchronously leveling: both sides are all through flexible coarse adjustment and the auxiliary foot rest of spiral accurate adjustment; Make the circular bubble electronics bubble that shows according to leveling monitoring device 6 output signals on the display screen 9 placed in the middle; Utilize data transmission unit real-time exchange both sides to flatten status data, and on display screen 9, show in real time.
Sight each other: through observe show on the display screen 9 image realize slightly sighting each other; Observe the image that the other side's altitude signal analyzer 4 transmits; And utilize the display screen touch key-press that the other side's altitude signal analyzer 4 is focused to the light adjustment, make target clear, and sight the other side's levelling staff.
Finishing synchronously is flat: both sides realize accurately leveling by the self leveling function of the other side's altitude signal analyzer 4, utilize data transmission unit real-time exchange both sides to flatten status data, and on display screen 9, show in real time.
Equity observation: under touch key-press control; Can observe operation; The self leveling electron telescope can obtain the scale map picture of the other side on the horizontal line of sight (B point) height; The microspur camera can obtain on the horizontal line of sight scale map picture of we's (A point) height, and resulting we and the other side's altitude signal (figure) input to all that digital signal processor is handled and height difference is calculated and show and storage.Observation need be carried out repeatedly (as three times) signal and reads, if error margin is up to standard, then gets its average as measured value.
Two-way checking: utilize data transmission unit real-time exchange both sides' measurement data and check both sides' measurement result; Promptly the mutual deviation of both sides' measurement result is made the judge of whether transfiniting according to code requirement; Pass judgment on qualified commentaries on classics station and continue operation, pass judgment on defective then in the duplicate measurements of former station.
Embodiment 3:
Like Fig. 6, shown in 7: basic structure is with embodiment 2, and different is that the other side's altitude signal analyzer 4 adopts the electron telescope that does not have the self leveling function with embodiment 2.Both sides correspondence at cylindricality chi body 1 is provided with handle 10; And will regulate control knob 8 and be fixed on the handle 10; Regulating control knob 8 can be keyswitch or adjusting knob etc., and output and the digital signal processor of regulating control knob 8 join, and it is touch display screen that display screen 9 does not limit to.
The course of work is basic identical with embodiment 2, and difference is following:
Settle instrument: do not use auxiliary foot rest, identical with the traditional water locating tab assembly, hold up chi by the survey crew manual work.
Thick synchronously leveling: all through observing the circular bubble picture that shows according to leveling monitoring device 6 output signals on the display screen 9, the artificial chi body of helping makes the electronics bubble keep realizing between two parties thick leveling to both sides' survey crew.
Finishing synchronously is flat: because manual work is held up chi to stablize for a long time and remained on the flat-shaped attitude of finishing; So leveling state of continuous monitoring both sides; Promptly constantly obtain the signal of leveling monitoring device output by digital signal processor, the attitude information of real-time dynamic monitoring the other side altitude signal analyzer 4 collimation axiss, and through data transmission unit realization intercommunication; So that both sides all grasp the other side's leveling status information in real time, catch the moment that both sides reach the leveling claimed condition simultaneously by digital signal processor.Its leveling condition judgement thresholding can require to set according to measuring accuracy, and measuring accuracy requires to need leveling more accurately when high, and the skilled operative skill to survey crew requires higher simultaneously.
Equity observation: reach moment of leveling claimed condition simultaneously capturing both sides, adjusted control knob 8 and by surveying reader side and the other side's altitude information through digital signal processor.
Embodiment 4:
Basic structure is with embodiment 2 or 3; With 2 differences of embodiment be that levelling staff 2 adopts bar code scaleplates and laser induced scale to make up; Place the both sides of observing unit 3 respectively; The other side's altitude signal analyzer 4 adopts the combined type self leveling electron telescope of embedded optical axis coincidence Laser emission, and our altitude signal analyzer 5 adopts the absolute type linear grating.As shown in Figure 8: as to be connected to the positioning unit (GPS/GLONASS receiver module) that is arranged on the chi body 1 with said digital signal processor; Laser induced scale and digital signal processor join.
The course of work and embodiment 2,3 differences are can be by the laser induced scale in A side's generating laser emission of lasering beam irradiation B side; The reading of hot spot center is the altitude information signal of B side (the other side) on the laser induced scale; The digital signal processor of this signal conveys to B side also is sent to A side through data transmission unit, makes A side obtain the other side's altitude information signal; Meanwhile, utilize laser beam to carry out the AB range sensing, get final product the horizontal range between the synchro measure both sides; A side reads our altitude information from the absolute type linear grating simultaneously; The satnav unit can carry out measurement point particular location location, provides measurement point geographical location information of living in.
Claims (6)
1. a dual formula observation is with chi appearance unification composite level; It is characterized in that: be provided with cylindricality chi body (1) and level (6); On the same cylinder of cylindricality chi body (1), be fixed with levelling staff (2) and the observing unit that can slide up and down (3); Said observing unit (3) has the other side's altitude signal analyzer (4) and the our altitude signal analyzer (5) that is mutually permanently connected, and the collimation axis of the other side's altitude signal analyzer (4) and our altitude signal analyzer (5) is parallel to each other and is vertical with levelling staff (2).
2. said dual formula observation is unified composite level with the chi appearance according to claim 1; It is characterized in that: said level (6) is the leveling monitoring device that is fixedly connected with the other side's altitude signal analyzer (4) or our altitude signal analyzer (5); Said the other side's altitude signal analyzer (4), our altitude signal analyzer (5) and leveling monitoring device join with digital signal processor respectively; On said cylindricality chi body (1), be provided with power module (7), regulate control knob (8) and display screen (9), said digital signal processor and display screen (9) and data transmission unit join.
3. said dual formula observation is unified composite level with the chi appearance according to claim 2; It is characterized in that: said the other side's altitude signal analyzer (4) is or/and our altitude signal analyzer (5) contains laser beam emitting device; Said levelling staff (2) is laser induced scale, and said laser induced scale and digital signal processor join.
4. unify composite level according to claim 2 or 3 described dual formula observations with the chi appearance, it is characterized in that: said power module (7) is positioned at the bottom of cylindricality chi body (1).
5. unify composite level according to claim 2 or 3 described dual formula observations with the chi appearance, it is characterized in that: the both sides correspondence of said cylindricality chi body (1) is provided with handle (10), and said adjusting control knob (8) places on the handle (10).
6. unify composite level according to claim 2 or 3 described dual formula observations with the chi appearance, it is characterized in that: be connected to positioning unit with said digital signal processor.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210246140 CN102778220A (en) | 2012-07-17 | 2012-07-17 | Ruler combinative/composite water level for dual type observation |
| PCT/CN2012/081896 WO2014012301A1 (en) | 2012-07-17 | 2012-09-25 | Ruler-combined composite level gauge used for dual-type observation |
| CN 201220611636 CN202994137U (en) | 2012-07-17 | 2012-11-19 | Dual type observing ruler combination composite level gauge |
| CN2012104668713A CN102927965A (en) | 2012-07-17 | 2012-11-19 | Ruler and instrument integrated combined leveling instrument for dual type observation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210246140 CN102778220A (en) | 2012-07-17 | 2012-07-17 | Ruler combinative/composite water level for dual type observation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102778220A true CN102778220A (en) | 2012-11-14 |
Family
ID=47123219
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210246140 Pending CN102778220A (en) | 2012-07-17 | 2012-07-17 | Ruler combinative/composite water level for dual type observation |
| CN2012104668713A Pending CN102927965A (en) | 2012-07-17 | 2012-11-19 | Ruler and instrument integrated combined leveling instrument for dual type observation |
| CN 201220611636 Expired - Fee Related CN202994137U (en) | 2012-07-17 | 2012-11-19 | Dual type observing ruler combination composite level gauge |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104668713A Pending CN102927965A (en) | 2012-07-17 | 2012-11-19 | Ruler and instrument integrated combined leveling instrument for dual type observation |
| CN 201220611636 Expired - Fee Related CN202994137U (en) | 2012-07-17 | 2012-11-19 | Dual type observing ruler combination composite level gauge |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN102778220A (en) |
| WO (1) | WO2014012301A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014063325A1 (en) * | 2012-10-25 | 2014-05-01 | 付建国 | Dual ruler-instrument integrated composite level instrument for observation |
| CN106767932A (en) * | 2017-01-23 | 2017-05-31 | 李开伟 | A kind of level gage i angle detection means and detection method |
| CN106989720A (en) * | 2017-05-05 | 2017-07-28 | 西安市政路桥建设有限公司 | Multifunction electronic Sopwith staff |
| CN108195347A (en) * | 2018-02-07 | 2018-06-22 | 大连圣博尔测绘仪器科技有限公司 | Scale reads formula leveling measuring method and device certainly |
| CN112413356A (en) * | 2020-10-21 | 2021-02-26 | 华能澜沧江水电股份有限公司托巴水电工程建设管理局 | Convenient leveling rod pad |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778220A (en) * | 2012-07-17 | 2012-11-14 | 刘雁春 | Ruler combinative/composite water level for dual type observation |
| CN105890571B (en) * | 2016-05-25 | 2019-05-21 | 大连圣博尔测绘仪器科技有限公司 | Ruler instrument integration flying level device |
| CN107228650B (en) * | 2017-05-03 | 2018-09-14 | 大连圣博尔测绘仪器科技有限公司 | The wire type measurement method of dual system bilateral observation composite level |
| CN108168511B (en) * | 2018-02-07 | 2020-06-26 | 大连圣博尔测绘仪器科技有限公司 | Composite level gauge parameter measuring method |
| CN108982081B (en) * | 2018-06-05 | 2024-07-02 | 山东同阳新能源科技股份有限公司 | Solar water heater support steadiness detection device |
| CN109579875B (en) * | 2018-12-19 | 2022-08-02 | 大连圣博尔测绘仪器科技有限公司 | Calibration method for calibrating vertical line offset of electronic level |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB556379A (en) * | 1942-09-09 | 1943-10-01 | Reginald Victor Edwards | Improvements in or relating to builder's levels |
| US3849898A (en) * | 1972-08-09 | 1974-11-26 | H Turloff | Elevation indicating apparatus |
| US5074049A (en) * | 1991-01-23 | 1991-12-24 | Hung Wen Pin | Vial |
| CN2090044U (en) * | 1991-01-26 | 1991-12-04 | 王荣章 | Light and reflection ruler |
| US5894344A (en) * | 1997-04-07 | 1999-04-13 | Tamez Construction | Elevation Measurement apparatus |
| CN2388588Y (en) * | 1999-08-06 | 2000-07-19 | 于雪岩 | Laser levelling staff |
| CN101446491B (en) * | 2007-11-26 | 2010-06-02 | 北京博飞仪器股份有限公司 | Error detection device of electronic reading system of digital level and detection method thereof |
| CN101458077B (en) * | 2009-01-08 | 2011-09-28 | 中南林业科技大学 | Height difference measuring method and digital device |
| CN101666642B (en) * | 2009-09-27 | 2011-09-28 | 常州市新瑞得仪器有限公司 | Digital level capable of automatically measuring |
| CN101672643B (en) * | 2009-10-28 | 2011-11-23 | 中国科学院地质与地球物理研究所 | Portable water tube tiltmeter with double-measuring bar |
| CN202793375U (en) * | 2012-07-17 | 2013-03-13 | 刘雁春 | Ruler-composite level gauge for dual-couple type observation |
| CN102778220A (en) * | 2012-07-17 | 2012-11-14 | 刘雁春 | Ruler combinative/composite water level for dual type observation |
-
2012
- 2012-07-17 CN CN 201210246140 patent/CN102778220A/en active Pending
- 2012-09-25 WO PCT/CN2012/081896 patent/WO2014012301A1/en active Application Filing
- 2012-11-19 CN CN2012104668713A patent/CN102927965A/en active Pending
- 2012-11-19 CN CN 201220611636 patent/CN202994137U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014063325A1 (en) * | 2012-10-25 | 2014-05-01 | 付建国 | Dual ruler-instrument integrated composite level instrument for observation |
| CN106767932A (en) * | 2017-01-23 | 2017-05-31 | 李开伟 | A kind of level gage i angle detection means and detection method |
| CN106767932B (en) * | 2017-01-23 | 2024-02-02 | 李开伟 | Level i angle detection device and detection method |
| CN106989720A (en) * | 2017-05-05 | 2017-07-28 | 西安市政路桥建设有限公司 | Multifunction electronic Sopwith staff |
| CN108195347A (en) * | 2018-02-07 | 2018-06-22 | 大连圣博尔测绘仪器科技有限公司 | Scale reads formula leveling measuring method and device certainly |
| CN112413356A (en) * | 2020-10-21 | 2021-02-26 | 华能澜沧江水电股份有限公司托巴水电工程建设管理局 | Convenient leveling rod pad |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202994137U (en) | 2013-06-12 |
| CN102927965A (en) | 2013-02-13 |
| WO2014012301A1 (en) | 2014-01-23 |
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Application publication date: 20121114 |