CN114441007A - Following type laser water level gauge - Google Patents
Following type laser water level gauge Download PDFInfo
- Publication number
- CN114441007A CN114441007A CN202210115117.9A CN202210115117A CN114441007A CN 114441007 A CN114441007 A CN 114441007A CN 202210115117 A CN202210115117 A CN 202210115117A CN 114441007 A CN114441007 A CN 114441007A
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- Prior art keywords
- water level
- buoy
- level gauge
- reflection
- laser
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 239000011521 glass Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
- G01F23/686—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/76—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats characterised by the construction of the float
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention provides a following laser water level gauge, which comprises a water level gauge body, wherein the water level gauge body comprises a limiting pipe, a reflecting buoy, a first laser distance meter and a second laser distance meter, the limiting pipe is installed on the inner wall of a dam through a fixing rod at the rear end, the top of the limiting pipe is provided with a top cover, the bottom end of the top cover is provided with the first laser distance meter, the bottom end of the limiting pipe is provided with an inserting column, the limiting pipe is internally provided with a lifting channel, the lifting channel is internally provided with a floating plate, one side of the floating plate is connected with a lifting rod through a supporting rod, the top of the lifting rod is provided with the reflecting buoy, one side of the reflecting buoy is provided with a supporting plate, the top of the supporting plate is provided with the second laser distance meter, the following laser water level gauge can effectively avoid the inclination or deviation of the reflecting buoy and buffer and filter the fluctuation of water flow, the measured data is more accurate and stable, and the measurement accuracy is higher.
Description
Technical Field
The invention relates to the technical field of water level measurement, in particular to a following type laser water level gauge.
Background
There are many methods in water level measurement, and among them, the following type laser water level gauge is widely used due to its high precision and wide application range.
The laser water level gauge needs to be matched with a reflection buoy for use, the auxiliary gauge needs to be arranged at the bottom of the laser range finder during installation, but the buoy can fluctuate along with the liquid level and is difficult to keep horizontal, laser can fluctuate greatly after being reflected on the surface of the reflection buoy, especially when the buoy inclines, the measured water level height can generate large errors, and on the other hand, due to numerical values of floating change during data reading, corresponding calculation and selection are needed, and real liquid level data are difficult to reflect.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a following type laser water level gauge to solve the problems in the background art, the following type laser water level gauge can effectively avoid inclination or deviation of a reflection buoy, buffer and filter fluctuation of water flow, and measure more accurate and stable data and higher measurement precision.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a following formula laser fluviograph, includes the fluviograph body, the fluviograph body includes spacing pipe, reflection buoy, laser range finder one and laser range finder two, the dead lever that spacing pipe passes through the rear end is installed on the inner wall of dam, the top of spacing pipe is provided with the top cap, laser range finder one is installed to the bottom of top cap, the bottom of spacing pipe is provided with the plug column, the lift passageway has been seted up to the inside of spacing pipe, the internally mounted of lift passageway has the kickboard, one side of kickboard is passed through the bracing piece and is connected with the lifting rod, the top of lifting rod is provided with the reflection buoy, one side of reflection buoy is provided with the layer board, laser range finder two is installed at the top of layer board.
In this embodiment, the top of the first laser range finder is installed below the support, and one side of the support is provided with a reflecting plate.
This embodiment, the through-hole has been seted up in the centre of reflecting plate, the top of reflecting plate is provided with the spool, the surface winding of spool has the signal line, the bearing is installed at the both ends of spool, an pot head of spool is equipped with the torsional spring.
This embodiment, the surface of lift passageway and kickboard all is the rectangle structure, and size between them is the same, the side of kickboard is laminated with the inner wall of lift passageway mutually, the bottom of kickboard sets up to cambered surface structure.
This embodiment, the bottom of kickboard and the bottom of reflection buoy all adopt the plastic material of low density, the bottom and the surface of water of kickboard contact, reflection buoy and layer board erect at the top of surface of water through holding in the palm the lifting rod, do not take place direct contact with the surface of water.
In this embodiment, the mirror is all installed in the subsides of reflection buoy and reflecting plate's one side in opposite directions, the surface mounting of reflection buoy has the arc glass board of evagination, and this glass board adopts transparent toughened glass material.
In this embodiment, the limiting pipe is inserted into the riverbed at the bottom of the riverway through the inserting column at the bottom.
In this embodiment, a vertical gap is opened at one side of the lifting channel, the supporting rod passes through the gap from the inside, and the supporting rod is gradually widened from the front end to the rear end.
In this embodiment, the first laser range finder irradiates vertically downward and aligns with the center point of the reflective float, and the second laser range finder irradiates vertically upward and aligns with the center point of the reflective plate.
In this embodiment, the top of spacing pipe is sheltered from through the top cap and is realized airtight, the coverage of top cap is greater than the edge of bottom reflection buoy and layer board.
The invention has the beneficial effects that: the invention discloses a following laser water level gauge which comprises a water level gauge body, wherein the water level gauge body comprises a top cover, a dam, a riverbed, a limiting pipe, a first laser range finder, a second laser range finder, a reflecting buoy, a supporting plate, a glass plate, a signal line, a scroll, an inserting column, a supporting rod, a floating plate, a fixing rod, a supporting rod, a gap, a lifting channel, a support, a reflecting plate, a bearing, a torsion spring and a through hole.
1. This following formula laser water level gauge carries on spacingly through two spacing pipes of wall mounting at the river dam to the kickboard part, and then carries on spacingly with the reflection buoy in the middle of, avoids taking place horizontal displacement, ensures that the range finding light of laser range finder one can keep perpendicular from top to bottom, has improved measuring precision.
2. This following formula laser fluviograph flows into rivers to inside through the gap of seting up with one side of spacing pipe, and the width through control gap makes the rivers that outside river got into or inside exhaust rivers velocity of flow slow, consequently when outside river water level change speed was too big, spacing inside water level can change slowly, avoids the floating plate part to fluctuate fast, makes the numerical value steady change that the distancer measured, approaches to the mean water level in short-term.
3. According to the following type laser water level meter, the second laser distance meter is additionally arranged on one side of the reflection buoy, and is matched with the first laser distance meter to obtain two-way two sets of data, so that the overlarge error of single set of data measurement is avoided, and the accuracy of finally obtained data is improved.
Drawings
FIG. 1 is a schematic structural view of the profile of a follow-up laser water level gauge according to the present invention;
FIG. 2 is a top view of a reflective float portion of a follower laser level gauge of the present invention;
FIG. 3 is a schematic structural diagram of a reflection float part of a following laser water level gauge according to the present invention;
FIG. 4 is a partial view of a stopper tube of a follower-type laser water level gauge according to the present invention;
FIG. 5 is a schematic structural view of a portion of a laser rangefinder of a follower-type laser level gauge of the present invention;
in the figure: 1. a top cover; 2. a dam; 3. a riverbed; 4. a limiting pipe; 5. a first laser range finder; 6. a second laser range finder; 7. a reflection float; 8. a support plate; 9. a glass plate; 10. a signal line; 11. a reel; 12. inserting the column; 13. a support bar; 14. a floating plate; 15. fixing the rod; 16. a lifting rod; 17. a gap; 18. a lifting channel; 19. a support; 20. a reflective plate; 21. a bearing; 22. a torsion spring; 23. and a through hole.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a following formula laser water level gauge, includes the water level gauge body, the water level gauge body includes spacing pipe 4, reflection buoy 7, laser range finder one 5 and laser range finder two 6, spacing pipe 4 is installed on dam 2's inner wall through the dead lever 15 of rear end, spacing pipe 4's top is provided with top cap 1, laser range finder one 5 is installed to top cap 1's bottom, spacing pipe 4's bottom is provided with plug column 12, lift channel 18 has been seted up to spacing pipe 4's inside, lift channel 18's internally mounted has floating plate 14, one side of floating plate 14 is passed through bracing piece 13 and is connected with support lifter 16, the top of support lifter 16 is provided with reflection buoy 7, one side of reflection buoy 7 is provided with layer board 8, laser range finder two 6 are installed at layer board 8's top.
In this embodiment, the top of the first laser range finder 5 is installed below the support 19, one side of the support 19 is provided with a reflecting plate 20, when measurement is performed, the first laser range finder 5 irradiates the middle of the reflecting buoy 7 at the bottom, reflected light is captured, and then the distance between the reflecting buoy and the reflecting buoy can be measured, the reflecting plate 20 at one side is mainly used for reflecting light irradiating upwards by the second laser range finder 6 at the bottom, data measured and calculated by the second laser range finder 6 are transmitted upwards through the signal line 10, two-way two-group data can be obtained, and more accurate water level values can be obtained by comparing the two-group data.
This embodiment, through-hole 23 has been seted up to the centre of reflecting plate 20, the top of reflecting plate 20 is provided with spool 11, the surface coiling of spool 11 has signal line 10, bearing 21 is installed at the both ends of spool 11, a pot head of spool 11 is equipped with torsional spring 22, and when the water level of bottom took place to alternate, two 6 can retrieve with the roll-up of step-by-step row height of laser range finder, and consequently signal line 10 can drive the roll-up of spool 11 through top torsional spring 22, avoids signal line 10 because the too high condition that leads to contacting the surface of water level.
This embodiment, the surface of lift passageway 18 and kickboard 14 all is the rectangle structure, and size between them is the same, the side of kickboard 14 is laminated with lift passageway 18's inner wall mutually, the bottom of kickboard 14 sets up to ARC structure, and kickboard 14 contacts with the surface of water in lift passageway 18's inside, holds up kickboard 14 through the surface of water, and then drives reflection buoy 7 and changes, and the laser range finder at cooperation top 5 can real-time measurement and calculation change the water level height in the time.
This embodiment, the bottom of kickboard 14 and the bottom of reflection buoy 7 all adopt the plastic material of low density, the bottom and the surface of water of kickboard 14 contact, reflection buoy 7 and layer board 8 erect at the top of the surface of water through holding in the palm lifting rod 16, do not take place direct contact with the surface of water, after obtaining measured data, reflection buoy 7 and layer board 8 and the interval between the surface of water have carried out data compensation and can eliminate this error, with reflection buoy 7 and 8 principle surface of water of layer board and, can avoid rivers to cause too big promotion influence to reflection buoy 7, make its range of change only rely on kickboard 14 to change, eliminate unnecessary error and make measuring process simplifier more.
This embodiment, reflection buoy 7 and reflecting plate 20's one side in opposite directions all pastes and is equipped with the level crossing, reflection buoy 7's surface mounting has the arc glass board 9 of evagination, and this glass board 9 adopts transparent toughened glass material, glass board 9 uplifts that makes progress, when the surface of water fluctuation range takes place the gondola water faucet that produces after the striking to the glass board 9 surface greatly, can play the scouring action, compare in planar structure, when the surface falls the dust or when producing ponding, this interference object of discharge that glass board 9 can be as early as possible, ensure that reflection buoy 7's surface is fit for the reflection light more.
This embodiment, spacing pipe 4 is fixed spacing pipe 4 through a plurality of dead levers 15 inside the riverbed 3 of riverway bottom through 12 cartridge of the grafting post of bottom, and dam 2 self stability is far greater than riverbed 3 bottoms, therefore spacing pipe 4 has longer life, can not be applicable to in the abominable rivers region more because the impact of rivers takes place to warp in short-term, and application scope is wide, and stability is higher.
In this embodiment, a vertical gap 17 is formed in one side of the lifting channel 18, the supporting rod 13 penetrates through the gap 17, the supporting rod 13 is gradually widened from the front end to the rear end, and the width of the gap 17 slows down the speed of external water flow flowing into the lifting channel 18, so that when the water flow periodically fluctuates, the speed of the water flow entering the lifting channel 18 can be stabilized, the lifting and floating of the reflection buoy 7 tend to be stable, the measured data is changed from an instantaneous measurement value to an even value in a short time, and the data can display the water level state in the short time.
This embodiment, spacing 4's top is sheltered from through top cap 1 and is realized inclosed, top cap 1's coverage area is greater than the edge of bottom reflection buoy 7 and layer board 8, and the back is accomplished in the installation, and top cap 1 shelters from every structure of bottom, when meetting sleet weather, can avoid the rainwater to fall into on reflection buoy 7 or on the kickboard 14, provides a suitable environment for measuring, and can provide the protection to the laser range finder two 6 of bottom, and the structure is more reasonable, and the function is more perfect.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (10)
1. The utility model provides a following formula laser water level gauge, includes the water level gauge body, its characterized in that: the water level gauge body comprises a limiting pipe (4), a reflection buoy (7), a first laser range finder (5) and a second laser range finder (6), the limiting pipe (4) is arranged on the inner wall of the dam (2) through a fixing rod (15) at the rear end, the top of the limiting pipe (4) is provided with a top cover (1), the bottom end of the top cover (1) is provided with a first laser range finder (5), the bottom end of the limiting pipe (4) is provided with an inserting column (12), the inside of the limiting pipe (4) is provided with a lifting channel (18), a floating plate (14) is arranged in the lifting channel (18), one side of the floating plate (14) is connected with a lifting rod (16) through a support rod (13), the top of holding in the palm pole (16) is provided with reflection buoy (7), one side of reflection buoy (7) is provided with layer board (8), laser range finder two (6) are installed at the top of layer board (8).
2. The following laser water level gauge according to claim 1, wherein: the top of the first laser range finder (5) is installed below the support (19), and a reflecting plate (20) is arranged on one side of the support (19).
3. The follow laser water level gauge according to claim 2, wherein: through-hole (23) have been seted up to the centre of reflecting plate (20), the top of reflecting plate (20) is provided with spool (11), the surface coiling of spool (11) has signal line (10), bearing (21) are installed at the both ends of spool (11), the pot head of spool (11) is equipped with torsional spring (22).
4. The follow laser water level gauge according to claim 1, wherein: the surface of lift passageway (18) and kickboard (14) all is the rectangle structure, and size between them is the same, the side of kickboard (14) is laminated with the inner wall of lift passageway (18) mutually, the bottom of kickboard (14) sets up to cambered surface structure.
5. The follow laser water level gauge according to claim 1, wherein: the bottom of kickboard (14) and the bottom of reflection buoy (7) all adopt the plastics material of low density, the bottom and the surface of water of kickboard (14) contact, reflection buoy (7) and layer board (8) are erect at the top of surface of water through holding in the palm lifting rod (16), do not take place direct contact with the surface of water.
6. The follow laser water level gauge according to claim 1, wherein: the reflecting buoy is characterized in that plane mirrors are attached to opposite sides of the reflecting buoy (7) and the reflecting plate (20), a convex arc-shaped glass plate (9) is mounted on the surface of the reflecting buoy (7), and the glass plate (9) is made of transparent toughened glass.
7. The follow laser water level gauge according to claim 1, wherein: the limiting pipe (4) is inserted into a riverbed (3) at the bottom end of the riverway through an inserting column (12) at the bottom.
8. The follow laser water level gauge according to claim 1, wherein: vertical gap (17) are seted up to one side of lift passageway (18), bracing piece (13) are passed from the inside of gap (17), bracing piece (13) widen gradually from the front end to the rear end.
9. The follow laser water level gauge according to claim 1, wherein: the first laser range finder (5) irradiates vertically downwards and is aligned with the central point of the reflection buoy (7), and the second laser range finder (6) irradiates vertically upwards and is aligned with the central point of the reflection plate (20).
10. The follow laser water level gauge according to claim 1, wherein: the top of the limiting pipe (4) is shielded by the top cover (1) to realize sealing, and the coverage area of the top cover (1) is larger than the edges of the bottom reflection buoy (7) and the supporting plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210115117.9A CN114441007A (en) | 2022-02-04 | 2022-02-04 | Following type laser water level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210115117.9A CN114441007A (en) | 2022-02-04 | 2022-02-04 | Following type laser water level gauge |
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| Publication Number | Publication Date |
|---|---|
| CN114441007A true CN114441007A (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210115117.9A Pending CN114441007A (en) | 2022-02-04 | 2022-02-04 | Following type laser water level gauge |
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| CN (1) | CN114441007A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848458A (en) * | 2024-03-06 | 2024-04-09 | 潍坊远邦人工智能研发有限公司 | Liquid level measurement device based on singlechip |
| CN117848458B (en) * | 2024-03-06 | 2024-05-31 | 潍坊远邦人工智能研发有限公司 | Liquid level measurement device based on singlechip |
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| EP1795875A1 (en) * | 2005-12-09 | 2007-06-13 | Unomedical A/S | An apparatus for measuring volume of liquid in a vessel |
| CN203833038U (en) * | 2014-05-23 | 2014-09-17 | 上虞市东海化工有限公司 | Storage tank convenient for measuring liquid level |
| CN107003173A (en) * | 2014-11-21 | 2017-08-01 | 富士通株式会社 | Measure of water device and water monitoring system |
| CN109932021A (en) * | 2019-04-08 | 2019-06-25 | 张大鸿 | Trailing type laser water-level gauge |
| JP2020008422A (en) * | 2018-07-09 | 2020-01-16 | 株式会社明電舎 | Method and device for measuring water level |
| CN214384506U (en) * | 2020-10-30 | 2021-10-12 | 郑琪 | Water level detection device for hydraulic engineering |
-
2022
- 2022-02-04 CN CN202210115117.9A patent/CN114441007A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1795875A1 (en) * | 2005-12-09 | 2007-06-13 | Unomedical A/S | An apparatus for measuring volume of liquid in a vessel |
| CN203833038U (en) * | 2014-05-23 | 2014-09-17 | 上虞市东海化工有限公司 | Storage tank convenient for measuring liquid level |
| CN107003173A (en) * | 2014-11-21 | 2017-08-01 | 富士通株式会社 | Measure of water device and water monitoring system |
| JP2020008422A (en) * | 2018-07-09 | 2020-01-16 | 株式会社明電舎 | Method and device for measuring water level |
| CN109932021A (en) * | 2019-04-08 | 2019-06-25 | 张大鸿 | Trailing type laser water-level gauge |
| CN214384506U (en) * | 2020-10-30 | 2021-10-12 | 郑琪 | Water level detection device for hydraulic engineering |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848458A (en) * | 2024-03-06 | 2024-04-09 | 潍坊远邦人工智能研发有限公司 | Liquid level measurement device based on singlechip |
| CN117848458B (en) * | 2024-03-06 | 2024-05-31 | 潍坊远邦人工智能研发有限公司 | Liquid level measurement device based on singlechip |
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Application publication date: 20220506 |