CN202994137U - Dual type observing ruler combination composite level gauge - Google Patents
Dual type observing ruler combination composite level gauge Download PDFInfo
- Publication number
- CN202994137U CN202994137U CN 201220611636 CN201220611636U CN202994137U CN 202994137 U CN202994137 U CN 202994137U CN 201220611636 CN201220611636 CN 201220611636 CN 201220611636 U CN201220611636 U CN 201220611636U CN 202994137 U CN202994137 U CN 202994137U
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- signal analyzer
- altitude signal
- leveling
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- 230000009977 dual effect Effects 0.000 title claims abstract description 16
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000012806 monitoring device Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 description 23
- 230000001360 synchronised effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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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
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- 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 utility model discloses a dual type combination composite level gauge which is provided with a cylindrical ruler body (1) and a level gauge (6). A leveling staff (2) parallel with the axis of the cylindrical ruler body (1) is fixed on the same cylindrical face of the cylindrical ruler body (1), and a observation unit (3) capable of moving up and down is arranged on the same cylindrical face of the cylindrical ruler body (1). An opposite side height signal measuring device (4) and a home side height signal measuring device (5) which are mutually fixedly connected are arranged on the observation unit (3), and the collimation axis of the opposite side height signal measuring device (4) is perpendicular to the axis of the cylindrical ruler body (1). The dual type observing ruler combination composite level gauge truly achieves point-to-point direct leveling, is not limited in point sorting and stationing by the terrain environment, and is capable of implementing leveling in complex terrains like an abrupt slope, a ditch, rivers, and a mountainous area and the like.
Description
Technical field
The utility model belongs to field of measuring technique, relates in particular to a kind ofly can effectively improve leveling work efficient and reliability, and the dual formula observation that is not subjected to the terrain environment restriction is with chi instrument unification composite level.
Background technology
At present, known leveling device is comprised of a spirit-leveling instrument and two levelling staffs.First two levelling staffs are placed in respectively ground A, B 2 points during measurement, then spirit-leveling instrument are arranged on the centre position of 2 of A, B, in order to guarantee measuring accuracy, the General Requirements spirit-leveling instrument equates or about equally apart from the horizontal range of two levelling staffs.Utilize after leveling the horizontal line of sight of spirit-leveling instrument to sight respectively the absolute altitude numerical value that reads two levelling staffs, the difference of the high numerical value of institute's mark is the height differences by leveling of 2 of ground A, B, if known wherein elevation can be extrapolated by the discrepancy in elevation elevation of another point.There are the following problems for existing leveling measuring method:
(1) surveying work efficient and reliability are low
Realize the reasonable disposition of position between spirit-leveling instrument and levelling staff in the terrain environment of complexity, often expend a large amount of energy and time of survey crew, efficient is measured in impact; 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 the pattern that checks of measuring that comes and goes, not only expend equally a large amount of energy and time of survey crew, efficient is measured in impact, and its reliability also can be difficult to guarantee because of human factor;
(2) measurement is subject to the terrain environment restriction
When running into the complex-terrain environment such as abrupt slope, hollow, pool, irrigation canals and ditches, gully, rivers, mountain area, often spirit-leveling instrument can not be erected at the centre position of two levelling staffs, cause measurement of the level to implement.
Summary of the invention
The utility model is in order to solve the existing above-mentioned technical matters of prior art, to provide a kind of and can effectively improve leveling work efficient and reliability, not being subjected to the dual formula observation of terrain environment restriction to unify composite level with the chi instrument.
Technical solution of the present utility model is: a kind of dual formula observation is unified composite level with the chi instrument, be provided with cylindricality chi body and level, be fixed with levelling staff and the observing unit that can slide up and down on the same cylinder of cylindricality chi body, described 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.
Described level is the leveling monitoring device that is fixedly connected with the other side's altitude signal analyzer or our altitude signal analyzer, described the other side's altitude signal analyzer, our altitude signal analyzer and leveling monitoring device join with digital signal processor respectively, be provided with power module on described cylindricality chi body, regulate control knob and display screen, described digital signal processor and display screen and data transmission unit join.
Described the other side's altitude signal analyzer is or/and our altitude signal analyzer contains laser beam emitting device, and described levelling staff is laser induced scale, and described laser induced scale and digital signal processor join.
Described power module is positioned at the bottom of cylindricality chi body.
The both sides correspondence of described cylindricality chi body is provided with handle, and described button is placed on handle.
Be connected to positioning unit with described digital signal processor.
the utility model is tradition to be separated the spirit-leveling instrument and the levelling staff that arrange become one with uniting two into one, can match and observe for dual formula, i.e. synchronous leveling, mutually sight, 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 positional distance with wasting time and energy, also check due to the reliability of pair observations system simultaneously and no longer need to come and go and measure, work efficiency and the reliability of measurement of the level have been improved, the reconnaissance of measurement of the level, layout and not limited by terrain environment, can be easily on the abrupt slope, hollow, the pool, irrigation canals and ditches, the gully, rivers, implement measurement of the level under the complex-terrain environment such as mountain area.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the use constitutional diagram of the utility model embodiment 1.
Fig. 3, the 4th, the structural representation of the utility model embodiment 2.
Fig. 5 is the schematic block circuit diagram of the utility model embodiment 2.
Fig. 6 is the structural representation of the utility model embodiment 3.
Fig. 7 is the schematic block circuit diagram of the utility model embodiment 3.
Fig. 8 is the schematic block circuit diagram of the utility model embodiment 4.
Embodiment
Embodiment 1:
As shown in Figure 1: the cylindricality chi body 1 of 2 ~ 4 meters high that useful metal, plastics or timber etc. are made, be fixed with the levelling staff 2(common scale 2 parallel with cylindricality chi body 1 axis on the same cylinder of cylindricality chi body 1) 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 observing unit 3 slides up and down and can be fixed on 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, be placed in levelling staff 2 other, its collimation axis is vertical with levelling staff 2, we's altitude signal analyzer 5 adopts pointer etc., be oppositely arranged with levelling staff 2, namely be arranged on the opposite face of levelling staff 2.Level 6 is fixedly connected with and is arranged on observing unit 3 belows, adopts the vertical circular bubble of axis and telescope collimation axis or/and the axis pipe level parallel with the telescope collimation axis.
The utility model embodiment 1 is used in pairing, can realize as shown in Figure 2 dual formula observation, to measure A, B two
The discrepancy in elevation of point, A is we, and B is the other side, and the specific works process is as follows:
(1). settle instrument: existing foot pin 11 is positioned over A, two measurement points of B, makes it firm.According to the discrepancy in elevation of A, two measurement points of B and the scope that manually can directly observe, the observing unit 3 on chi body 1 is adjusted to correct position.Existing auxiliary stand 12 is adjusted to appropriate length, utilizes hasp to connect auxiliary stand 12 and chi body 1, then chi body 1 is put down gently to foot pin 11, fix auxiliary stand 12.
(2). synchronous thick leveling: both sides all by flexible coarse adjustment and spiral accurate adjustment auxiliary stand, make the circular bubble bubble of level 6 placed in the middle.
(3). mutually sight: both sides carry out dual formula observation, and target, slightly sight mutually with the sight on telescope tube and foresight each other, observes from telescope, focuses to the light adjustment, makes target clear, and sight the other side's levelling staff.
(4). synchronous finishing is flat: both sides all adjust the little spiral that inclines on 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), and data read, if error margin is up to standard, get its average as measured value.
(6). two-way checking: exchange both sides' measurement data also checks both sides' measurement result, namely according to code requirement, the mutual deviation of both sides' measurement result is made the judge of whether transfiniting, and passes judgment on the qualified station continuation operation that turns, and passes judgment on defective in the duplicate measurements of former station.
Embodiment 2:
As Fig. 3, Fig. 4, shown in Figure 5: basic structure such as embodiment 1, with embodiment 1 difference be that levelling staff 2 adopts indium steel bar code scales, 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 camera, 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 leveling monitoring devices of being fixedly connected with relative to observing unit 3, the leveling monitoring device adopts high-precision dual-axis obliquity sensor (auspicious fragrant HCA526T), two sensitive axes is 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 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 is also joined with digital signal processor, be provided with power module 7(lithium iron battery etc. on described cylindricality chi body 1) and display screen 9, described 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 the stability of chi body 1 when upright; Display screen 9 can be touch display screen, can be set as for the button 8 of regulating control the other side altitude signal analyzer 4, our altitude signal analyzer 5, leveling monitoring device etc. the touch key-press of touch display screen, can utilize touch key-press to realize mutual input, display interface (electron telescope image, leveling monitoring picture, state indication, data demonstration, Control-Menu etc.) can be provided again simultaneously, digital signal processor adopts FLASH storer save data, realizes that by software the rod reading survey is read, measurement data exchange and functions such as processing, check.Data transmission unit can be made of audio codec (CODEC) and the wireless data transfer modules such as ZigBee, RF, completes the data transmission such as voice, figure, numeral.
The course of work is basic identical with embodiment 1, and difference is as follows:
Settle instrument: the position of observing unit 3 is not subjected to the restriction of survey crew height, and adjustable range is whole chi body 1.
Synchronous thick leveling: both sides are all by flexible coarse adjustment and spiral accurate adjustment auxiliary stand, make the circular bubble electronics bubble that shows according to leveling monitoring device 6 output signals on display screen 9 placed in the middle, utilize data transmission unit real-time exchange both sides to flatten status data, and show in real time on display screen 9.
Mutually sight: by observe show on display screen 9 image realize mutually slightly sighting, 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.
Synchronous finishing 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 show in real time on display screen 9.
Equity observation: under touch key-press is controlled, can observe operation, the self leveling electron telescope can obtain the scale map picture of the other side on horizontal line of sight (B point) height, the microspur camera can obtain on 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 processed and height difference is calculated and show and store.Observation need be carried out repeatedly (as three times) signal-obtaining, if error margin is up to standard, 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, namely according to code requirement, the mutual deviation of both sides' measurement result is made the judge of whether transfiniting, pass judgment on the qualified station that turns and continue operation, pass judgment on defective in the duplicate measurements of former station.
Embodiment 3:
As shown in Fig. 6,7: basic structure is with embodiment 2, with embodiment 2 differences be that our altitude signal analyzer 5 adopts laser or infrared distance measurement devices, it is parallel with cylindricality chi body 1 axis that it measures fiducial axis, observed ray sensing cylindricality chi body 1 bottom, the other side's altitude signal analyzer 4 adopts the electron telescope that does not have the self leveling function.Both sides correspondence at cylindricality chi body 1 is provided with handle 10, and button 8 is fixed on handle 10, and button 8 can be keyswitch or adjusting knob etc., and output and the digital signal processor of button 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 as follows:
Settle instrument: do not use auxiliary stand, identical with traditional measurement of the level, manually hold up chi by survey crew.
Synchronous thick leveling: both sides' survey crew all by observing the circular bubble picture that shows according to leveling monitoring device 6 output signals on display screen 9, manually helps the chi body to make the electronics bubble keep realizing between two parties thick leveling.
Synchronous finishing is flat: remain on the finishing level state owing to manually holding up chi to stablize for a long time, therefore continuous monitoring both sides' leveling state, namely constantly obtained 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 realize intercommunication by data transmission unit, so that both sides all grasp the other side's leveling status information in real time, catch by digital signal processor the moment that both sides reach the leveling claimed condition simultaneously.Its leveling condition judgement thresholding can require to set according to measuring accuracy, when the measuring accuracy requirement is high, needs leveling more accurately, requires higher to the skilled operation technical ability of survey crew simultaneously.
Equity observation: in the moment that captures both sides and reach simultaneously the leveling claimed condition, action button 8 and by survey reader side and the other side's altitude information by 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, be placed in respectively the both sides of observing unit 3, 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: be connected to described digital signal processor the positioning unit (GPS/GLONASS receiver module) that is arranged on chi body 1; 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 Lasers bundle irradiation B side, on laser induced scale, the reading of hot spot center is the altitude information signal of B side (the other side), this signal is delivered to the digital signal processor of B side and is sent to A side by data transmission unit, makes A side obtain the other side's altitude information signal; Meanwhile, utilize laser beam to carry out the AB distance measurement, 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 the measurement point particular location locates, and provides measurement point geographical location information of living in.
Claims (6)
1. a dual formula observation is unified composite level with the chi instrument, it is characterized in that: be provided with cylindricality chi body (1) and level (6), be fixed with the levelling staff (2) parallel with cylindricality chi body (1) axis and the observing unit that can slide up and down (3) on the same cylinder of cylindricality chi body (1), described 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) is vertical with cylindricality chi body (1) axis.
2. dual formula observation is unified composite level with the chi instrument according to claim 1, it is characterized in that: described 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), described the other side's altitude signal analyzer (4), we's altitude signal analyzer (5) and leveling monitoring device join with digital signal processor respectively, be provided with power module (7) on described cylindricality chi body (1), regulate control knob (8) and display screen (9), described digital signal processor and display screen (9) and data transmission unit join.
3. dual formula observation is unified composite level with the chi instrument according to claim 2, it is characterized in that: described the other side's altitude signal analyzer (4) is or/and our altitude signal analyzer (5) contains laser beam emitting device, described levelling staff (2) is laser induced scale, and described laser induced scale and digital signal processor join.
4. according to claim 2 or 3 described dual formula observations are unified composite level with the chi instrument, and it is characterized in that: described power module (7) is positioned at the bottom of cylindricality chi body (1).
5. according to claim 2 or 3 described dual formula observations are unified composite level with the chi instrument, and it is characterized in that: the both sides correspondence of described cylindricality chi body (1) is provided with handle (10), and described button (8) is placed on handle (10).
6. according to claim 2 or 3 described dual formula observations are unified composite level with the chi instrument, it is characterized in that: be connected to positioning unit with described digital signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611636 CN202994137U (en) | 2012-07-17 | 2012-11-19 | Dual type observing ruler combination composite level gauge |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210246140.8 | 2012-07-17 | ||
| CN 201210246140 CN102778220A (en) | 2012-07-17 | 2012-07-17 | Ruler combinative/composite water level for dual type observation |
| CN 201220611636 CN202994137U (en) | 2012-07-17 | 2012-11-19 | Dual type observing ruler combination composite level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994137U true CN202994137U (en) | 2013-06-12 |
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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 |
| CN 201220611636 Expired - Fee Related CN202994137U (en) | 2012-07-17 | 2012-11-19 | Dual type observing ruler combination composite level gauge |
| CN2012104668713A Pending CN102927965A (en) | 2012-07-17 | 2012-11-19 | Ruler and instrument integrated combined leveling instrument for dual type observation |
Family Applications Before (1)
| 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 |
Family Applications After (1)
| 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 |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN102778220A (en) |
| WO (1) | WO2014012301A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927965A (en) * | 2012-07-17 | 2013-02-13 | 刘雁春 | Ruler and instrument integrated combined leveling instrument for dual type observation |
| CN108168511A (en) * | 2018-02-07 | 2018-06-15 | 大连圣博尔测绘仪器科技有限公司 | Method for Determination of Parameters of Composite Level |
Families Citing this family (11)
| 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 |
| CN105890571B (en) * | 2016-05-25 | 2019-05-21 | 大连圣博尔测绘仪器科技有限公司 | Ruler-meter-integrated rapid leveling device |
| CN106767932B (en) * | 2017-01-23 | 2024-02-02 | 李开伟 | Level i angle detection device and detection method |
| CN107228650B (en) * | 2017-05-03 | 2018-09-14 | 大连圣博尔测绘仪器科技有限公司 | The Traverse Measurement Method of Dual-system Opposite Observation Composite Level |
| 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 | Ruler self-reading leveling measurement method and device |
| 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 |
| 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 |
| CN115388850B (en) * | 2022-08-02 | 2025-08-26 | 上海市基础工程集团有限公司 | A method for controlling elevation measurement of prefabricated columns |
| CN120779384B (en) * | 2025-09-12 | 2025-12-09 | 四川水发勘测设计研究有限公司 | Horizontal distance measurement system and method based on double-row phase interference array |
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| 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 | Dual Rod Portable Water Pipe Inclinometer |
| 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 not_active Ceased
- 2012-11-19 CN CN 201220611636 patent/CN202994137U/en not_active Expired - Fee Related
- 2012-11-19 CN CN2012104668713A patent/CN102927965A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927965A (en) * | 2012-07-17 | 2013-02-13 | 刘雁春 | Ruler and instrument integrated combined leveling instrument for dual type observation |
| CN108168511A (en) * | 2018-02-07 | 2018-06-15 | 大连圣博尔测绘仪器科技有限公司 | Method for Determination of Parameters of 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 | Method for measuring parameters of composite level |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014012301A1 (en) | 2014-01-23 |
| CN102927965A (en) | 2013-02-13 |
| CN102778220A (en) | 2012-11-14 |
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