CN212747970U - Laser range finder for measuring water gauge - Google Patents
Laser range finder for measuring water gauge Download PDFInfo
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- CN212747970U CN212747970U CN202022245168.2U CN202022245168U CN212747970U CN 212747970 U CN212747970 U CN 212747970U CN 202022245168 U CN202022245168 U CN 202022245168U CN 212747970 U CN212747970 U CN 212747970U
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- measuring tube
- displacement sensor
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- baffle
- laser displacement
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Abstract
The utility model discloses a laser range finder for measuring a water gauge, wherein a measuring tube of the range finder is vertically inserted into a water body, the bottom of the measuring tube is provided with an opening for liquid to flow into the inner cavity of the measuring tube, the top of the measuring tube is provided with a laser displacement sensor, a baffle is arranged on the tube wall of the lower part of the measuring tube, and a one-way valve is arranged on the baffle; a floatable reflecting plate is arranged in the inner cavity of the measuring tube and is positioned between the baffle and the laser displacement sensor; the upper pipe wall of the measuring pipe is provided with a vent hole, and the vent hole is positioned between the reflecting plate and the laser displacement sensor and is positioned above the liquid level during measurement; one end of the cable is connected with the laser displacement sensor, and the other end of the cable is connected with the display; the outer surface of the cable is marked with scales. The utility model discloses laser range finder can realize the high precision measurement of water level millimeter level, and application method is simple to have the security height, application scope is wide and the characteristics that artifical observation error is little.
Description
Technical Field
The utility model belongs to the technical field of the water gauge is measured, specifically a be used for water gauge measuring laser range finder.
Background
The water gauge weighing is an important weighing mode for shipping bulk cargo, but for a long time, due to the influence of factors such as actual personnel observation errors, hull trim, external sea waves and the like and the lack of a uniform observation standard, the accuracy of a water gauge observation result is controversial all the time, and the difficulty is increased for evaluating the weighing capacity of the water gauge. Wherein the disputed measuring link is water gauge observation. In order to reduce the observation difficulty of the water gauge, a plurality of novel observation methods are proposed in succession, but the problems of subjective judgment exist. The international recognition that the weighing accuracy of the water gauge is five thousandths, but the difficulty of ensuring a high-precision observation result in a hydrologic complex environment is very high, and particularly, the ideal water gauge observation condition is difficult to achieve under the condition of surge.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a laser range finder for water gauge is measured is provided, through this laser range finder, can realize the high accuracy measurement of water gauge to have the security height, extensive applicability and the little characteristics of artifical observation error.
The utility model discloses solve above-mentioned technical problem with following technical scheme:
the utility model relates to a laser range finder for measuring a water gauge, which comprises a cable, a laser displacement sensor, a measuring tube, a baffle, a one-way valve, a reflecting plate and a display; the measuring tube is vertically inserted into a water body, the bottom of the measuring tube is provided with an opening for liquid to flow into an inner cavity of the measuring tube, the top of the measuring tube is provided with a laser displacement sensor, the tube wall of the lower part of the measuring tube is provided with a baffle plate, and the baffle plate is provided with a one-way valve; a floatable reflecting plate is arranged in the inner cavity of the measuring tube and is positioned between the baffle and the laser displacement sensor; the upper pipe wall of the measuring pipe is provided with a vent hole, and the vent hole is positioned between the reflecting plate and the laser displacement sensor and is positioned above the liquid level during measurement; one end of the cable is connected with the laser displacement sensor, and the other end of the cable is connected with the display; the outer surface of the cable is marked with scales.
The baffle is ring shape, and the check valve is installed at the middle part of baffle, and liquid flows to the inner chamber of surveying buret through the check valve from surveying buret bottom.
The survey buret is made by resistant sea water corrosion's stainless steel material.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the utility model discloses laser range finder has reduced hydrological environment such as surge to a certain extent to the influence of water gauge measuring result, has improved measurement accuracy and detection efficiency.
2) The utility model discloses laser range finder adopts laser rangefinder's mode directly to acquire water level information, has the advantage that directly perceived, real-time, personnel observation error are little and the result is easily saved.
3) The utility model discloses laser range finder has easy operation, the high characteristics of security, can realize millimeter level high accuracy water level measurement.
4) The utility model discloses laser range finder's survey buret can adopt split type structure, realizes the segmentation dismouting, and the daily maintenance of being convenient for and the long-pending salt of washing can be measured in the wave environment of various fluctuation ranges in all weather, have very strong suitability and stability.
Drawings
Fig. 1 is the utility model relates to a structure schematic diagram of a laser range finder for water gauge is measured.
In the figure: a cable 1; a laser displacement sensor 2; a measurement tube 4; a baffle 5; a check valve 6; a reflection plate 7; a measuring point 8; a display 9.
Detailed Description
The technical solution of the present invention will be described in one step with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to a laser range finder for water gauge measurement, which comprises a cable 1, a laser displacement sensor 2, a measuring tube 4, a baffle 5, a one-way valve 6, a reflecting plate 7 and a display 9; the measuring tube 4 is vertically inserted into a water body, the bottom of the measuring tube 4 is provided with an opening and is of a through structure, liquid can flow into an inner cavity of the measuring tube, the top of the measuring tube 4 is provided with the laser displacement sensor 2, the tube wall at the lower part of the measuring tube 4 is provided with a baffle 5, and the baffle 5 is provided with a one-way valve 6; a floatable reflecting plate 7 is arranged in the inner cavity of the measuring pipe 4, and the reflecting plate 7 is positioned between the baffle 5 and the laser displacement sensor 2; the upper pipe wall of the measuring pipe 4 is provided with a vent hole 3, and the vent hole 3 is positioned between the reflecting plate 7 and the laser displacement sensor 2 and is positioned above the liquid level during measurement; one end of the cable 1 is connected with the laser displacement sensor 2, and the other end of the cable is connected with the display 9; the outer surface of the cable 1 is marked with scales, so that distance measurement can be conveniently carried out when the water gauge is used for observation.
Baffle 5 is the ring shape, and check valve 6 is installed in the middle part of baffle, and liquid is followed survey buret bottom and is surveyed the inner chamber of buret through check valve 6 flow direction.
The body of the measuring tube 4 is made of a stainless steel material which is resistant to seawater corrosion, and the weight of the measuring tube 4 can effectively ensure the verticality of the cable 1; the pipe body of the measuring pipe 4 adopts a split structure, so that the sectional disassembly and assembly are realized, the daily maintenance and the cleaning of the salt deposit are facilitated, and the length of the pipe body can be determined according to the range and the portability of wind waves.
The cable 1 can effectively reduce the influence of wind resistance and guarantee the requirement of verticality in the measuring process.
The baffle 5 and the one-way valve 6 can effectively weaken the influence of surging on the liquid level measurement result.
The air vent 3 can ensure that the air pressure in the measuring tube 4 is consistent with the atmospheric pressure outside the measuring tube, and can effectively ensure that the liquid level inside and outside the measuring tube 4 is consistent.
The utility model discloses after surveying buret 4 and successfully inserting the aquatic, the distance reading can change along with the weight change of measurement ship, is convenient for measure the water level under night and the unclear scene of sight.
When the water gauge is used for measuring, water can enter the inner cavity of the measuring tube 4 from the bottom of the measuring tube 4 according to the principle of a communicating device, and water can continuously enter the inner cavity of the measuring tube 4 through the one-way valve under the action of liquid pressure difference until the liquid level is equal to the outside water level, and at the moment, the reflecting plate 7 can float in the measuring tube 4 under the action of buoyancy; the light emitted by the laser displacement sensor 2 irradiates on the floating reflecting plate 7, and the reflected light is received by the laser displacement sensor 2, so that the position change information of the reflecting plate 7 is received by the laser displacement sensor in real time, namely the water level of the seawater can be detected by the laser displacement sensor in real time. Because the laser displacement sensor 2 has millimeter-scale measurement accuracy, the high-accuracy measurement of the water gauge can be realized.
The utility model discloses a use method for water gauge measuring laser range finder, including following operating procedure:
step 1: selecting a measuring plane on the ship body, carrying out height calibration, selecting a measuring point 8 on the measuring plane, and recording the vertical distance from the measuring point to the bottom surface of the ship body as BH;
step 2: selecting a measuring tube 4 with proper length according to the actual wind wave size, vertically putting down the measuring tube 4 from a measuring point 8, observing the reading change of the distance between the measuring tube and the measuring point displayed on a display 9 when the measuring tube 4 is close to the water surface by eye, and judging the position of the measuring tube 4;
and step 3: when the lower part of the measuring tube 4 is inserted below the liquid level, seawater enters the measuring tube 4 from the bottom of the measuring tube 4 through the baffle 5 and the one-way valve 6 under the action of water pressure, the reflecting plate 7 floats on the water surface under the action of buoyancy, and the internal pressure and the external pressure of the measuring tube 4 are consistent due to the communication action of the vent holes 3, so that the internal liquid level and the external liquid level of the measuring tube 4 are consistent, namely the reflecting plate 7 truly reflects external water level information;
and 4, step 4: due to the action of wind waves, the distance reading from the reflecting plate 7 to the laser displacement sensor 2 on the display 9 is shown to fluctuate, and at the moment, the water gauge measurement work is started; after the reading is basically stable, reading the distance from the reflecting plate 7 to the laser displacement sensor 2, and recording as M2; the distance from the laser displacement sensor 2 to the measuring point 8 is determined by reading the scale on the cable 1, and is marked as M1, and the water level value Draft is BH-M1-M2.
Claims (3)
1. A laser range finder for water gauge measurement is characterized by comprising a cable (1), a laser displacement sensor (2), a measuring tube (4), a baffle (5), a one-way valve (6), a reflecting plate (7) and a display (9); the measuring tube (4) is vertically inserted into a water body, the bottom of the measuring tube (4) is provided with an opening for liquid to flow into the inner cavity of the measuring tube, the top of the measuring tube (4) is provided with a laser displacement sensor (2), the tube wall of the lower part of the measuring tube (4) is provided with a baffle (5), and the baffle (5) is provided with a one-way valve (6); a floatable reflecting plate (7) is arranged in the inner cavity of the measuring pipe (4), and the reflecting plate (7) is positioned between the baffle plate (5) and the laser displacement sensor (2); the upper pipe wall of the measuring pipe (4) is provided with a vent hole (3), and the vent hole (3) is positioned between the reflecting plate (7) and the laser displacement sensor (2) and is positioned above the liquid level during measurement; one end of the cable (1) is connected with the laser displacement sensor (2), and the other end of the cable is connected with the display (9); the outer surface of the cable (1) is marked with scales.
2. Laser rangefinder for water gauge measurement according to claim 1, characterized in that the baffle (5) is circular, and that a one-way valve (6) is mounted in the middle of the baffle, and that liquid flows from the bottom of the measuring tube through the one-way valve to the inner cavity of the measuring tube.
3. Laser rangefinder for water gauge measurement according to claim 1 or 2, characterized in that the measuring tube (4) is made of a stainless steel material that is resistant to seawater corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022245168.2U CN212747970U (en) | 2020-10-10 | 2020-10-10 | Laser range finder for measuring water gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022245168.2U CN212747970U (en) | 2020-10-10 | 2020-10-10 | Laser range finder for measuring water gauge |
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| Publication Number | Publication Date |
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| CN212747970U true CN212747970U (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022245168.2U Active CN212747970U (en) | 2020-10-10 | 2020-10-10 | Laser range finder for measuring water gauge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199338A (en) * | 2021-12-10 | 2022-03-18 | 浙江大学 | Water level measuring device and method with adjustable precision |
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2020
- 2020-10-10 CN CN202022245168.2U patent/CN212747970U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199338A (en) * | 2021-12-10 | 2022-03-18 | 浙江大学 | Water level measuring device and method with adjustable precision |
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