CN110906905B - Ultra-high precision static level gauge - Google Patents
Ultra-high precision static level gauge Download PDFInfo
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- CN110906905B CN110906905B CN201911221910.1A CN201911221910A CN110906905B CN 110906905 B CN110906905 B CN 110906905B CN 201911221910 A CN201911221910 A CN 201911221910A CN 110906905 B CN110906905 B CN 110906905B
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- 230000003068 static effect Effects 0.000 title abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 34
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 15
- 239000013505 freshwater Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008092 positive effect Effects 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
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention belongs to the technical field of instruments and meters, and discloses an ultrahigh-precision static level which comprises a large cylindrical cavity, a small cylindrical cavity, a temperature sensor, a resistance sensor, a semi-permeable membrane, a loose water-proof membrane and a shell, wherein the shell is fixed outside the small cylindrical cavity; the ultra-high precision hydrostatic level provided by the invention has a simple structure, consists of a large cylindrical cavity and a small cylindrical cavity, and is internally provided with a temperature sensor, a resistance sensor, a semi-permeable membrane and a loose water-proof membrane, the volume of fresh water entering the hydrostatic level can be calculated by testing the front and back change of resistance, and then the settlement value of a measuring point can be calculated by correcting according to the temperature tested by the temperature sensor, so that the hydrostatic level is simple and convenient to operate and high in precision.
Description
Technical Field
The invention belongs to the technical field of instruments and meters, and particularly relates to an ultrahigh-precision static level.
Background
A hydrostatic level is a high precision level measurement system that is suitable for measuring relative settlement at multiple points. In use, the containers of the plurality of hydrostatic levels are connected by a liquid pipe, the liquid level of each container is measured by the related sensor, and the liquid level variation of each measuring point can be measured. The prior static level gauge mainly utilizes the principle of a communicating vessel, and the liquid level heights in the openly communicated containers are the same. And determining the sedimentation amount by observing the height change of the liquid in the hydrostatic level during the sedimentation process. The change in the liquid level can be obtained by means of ultrasonic waves, laser, magnetostriction, or the like. The main determination of the prior art is that the liquid level height change needs to be accurately measured, and the resolution of +/-0.01 mm can be achieved by high-precision products on the market at present. However, the high-precision liquid level sensor has high cost and the precision has a bottleneck.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an ultrahigh-precision static level.
The invention is realized in such a way that the ultra-high precision static level comprises a large cylindrical cavity, a small cylindrical cavity, a temperature sensor, a resistance sensor, a semi-permeable membrane, a loose water-proof membrane and a shell, wherein the shell is fixed outside the small cylindrical cavity, the large cylindrical cavity is positioned at the upper end of the small cylindrical cavity, the upper end of the small cylindrical cavity is communicated with the large cylindrical cavity, the semi-permeable membrane is positioned at the end of the small cylindrical cavity far away from the large cylindrical cavity, the resistance sensor is positioned at the inner side of the semi-permeable membrane facing the small cylindrical cavity, the temperature sensor is fixed between the resistance sensor and the semi-permeable membrane, the loose water-proof membrane is positioned at the end of the small cylindrical cavity close to the large cylindrical cavity, and the upper end of the loose water-proof membrane is flush with the contact surface of the small cylindrical cavity and the large cylindrical cavity.
As a preferable technical solution of the ultra-high precision hydrostatic level of the present invention, the temperature sensor is fixed between the resistance sensor and the semi-permeable membrane.
As the preferable technical scheme of the ultra-high precision static level, the upper end of the loose waterproof membrane is flush with the contact surface of the small cylindrical cavity and the large cylindrical cavity.
As a preferred technical scheme of the ultra-high precision static level gauge, a connecting rod is fixed at the upper end of the semi-permeable membrane, two resistance sensors are arranged on the connecting rod along the height direction, and the temperature sensor is fixed between the two sensors.
As a preferred technical scheme of the ultra-high precision static level gauge, the filler in the large cylindrical cavity is water, the filler in the small cylindrical cavity is conductive solution, and the conductive solution is located below the loose waterproof membrane.
As a preferable technical scheme of the ultra-high precision static level gauge, the end, far away from the small cylindrical cavity, of the semi-permeable membrane can be connected with a water pipe.
The invention has the advantages and positive effects that: the ultra-high precision hydrostatic level provided by the invention is composed of a large cylindrical cavity at the top, a small cylindrical cavity at the bottom, a temperature sensor, a resistance sensor, a semi-permeable membrane, a loose water-proof membrane and a shell, has a simple structure, is connected with an external water pipe at the bottom and an external fixed reference liquid level container, can calculate the volume of fresh water entering through measuring the front and back change of resistance, and can calculate the settlement value of a measuring point by correcting according to the temperature measured by the temperature sensor, is simple and convenient to operate, and has high precision by calculating through corrected data.
Drawings
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at I of FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic view of an external water pipe provided in an embodiment of the present invention;
in the figure: 1. a large cylindrical cavity; 2. a small cylindrical cavity; 3. a temperature sensor; 4. a resistance sensor; 5. a semi-permeable membrane; 6. loosening the water-proof film; 7. a housing; 8. a connecting rod.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
The structure of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the ultra-high precision hydrostatic level provided by the embodiment of the invention comprises a large cylindrical cavity 1, a small cylindrical cavity 2, a temperature sensor 3, a resistance sensor 4, a semi-permeable membrane 5, a loose water-stop membrane 6 and a shell 7, the outer shell 7 is fixed outside the small cylindrical cavity 2, the large cylindrical cavity 1 is positioned at the upper end of the small cylindrical cavity 2, the upper end of the small cylindrical cavity 2 is communicated with the large cylindrical cavity 1, the semi-permeable membrane 5 is positioned at the end of the small cylindrical cavity 2 far away from the large cylindrical cavity 1, the resistance sensor 4 is positioned at the upper end of the semi-permeable membrane 5 towards the inner side of the small cylindrical cavity 2, resistance sensor 4 with be fixed with between the pellicle 5 temperature sensor 3, lax water proof membrane 6 is located small circle cylinder cavity 2 is close to 1 end of big cylinder cavity, lax water proof membrane 6 upper end with small circle cylinder cavity 2 flushes with 1 contact surface of big cylinder cavity.
Specifically, pellicle 5 upper end is fixed with connecting rod 8, and connecting rod 8 is equipped with two along the direction of height resistance sensor 4 is fixed between two resistance sensor 4 temperature sensor 3.
Specifically, the filler in the large cylindrical cavity 1 is water, the filler in the small cylindrical cavity 2 is conductive solution, and the conductive solution is located below the loose water-stop film 6.
Specifically, the end, far away from the small cylindrical cavity 2, of the semi-permeable membrane 5 can be connected with a water pipe.
The working principle of the invention is as follows: when the static level gauge is used, the ultra-high precision static level gauge is arranged at a position where sedimentation needs to be tested, and is connected with an external fixed reference liquid level container by utilizing an external water pipe at the bottom. When the measuring point is settled, the liquid level in the level gauge is lower than the fixed reference liquid level, so that external water enters the lower small cylindrical cavity 2 through a water pipe connected with the semi-permeable membrane 5 at the bottom of the level gauge, the loose waterproof membrane 6 is arranged at the upper part of the small cylindrical cavity 2, and the liquid level in the upper large cylindrical cavity 1 is lifted through the deformation of the loose waterproof membrane 6, so that the balance is finally achieved. In the process, the concentration of the original conductive solution is reduced due to the entering of fresh water in the small cylindrical cavity 2 at the lower part, so that the solution resistance is improved. The volume of the fresh water can be calculated by testing the change of the resistance, and then the settlement value of the measuring point can be calculated by correcting according to the temperature tested by the temperature sensor 3.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides an ultra-high precision hydrostatic level, its characterized in that, ultra-high precision hydrostatic level includes big cylinder cavity (1), small circle cylinder cavity (2), temperature sensor (3), resistance sensor (4), pellicle (5), lax water-stop film (6) and shell (7), small circle cylinder cavity (2) external fixation shell (7), big cylinder cavity (1) is located little cylinder cavity (2) upper end, small circle cylinder cavity (2) upper end with big cylinder cavity (1) intercommunication, pellicle (5) are located big cylinder cavity (1) end is kept away from to small circle cylinder cavity (2), resistance sensor (4) are located inside small circle cylinder cavity (2), lax water-stop film (6) are located little cylinder cavity (2) are close to big cylinder cavity (1) end, the inside filler of big cylinder cavity (1) is water, the inside filler of small circle post cavity (2) is the conductible solution, but the conductible solution level in lax water-stop membrane (6) below, when the measurement point subsides, because the liquid level is less than fixed reference liquid level in the spirit level, consequently lead to outside water to get into small circle post cavity (2) through the water pipe that the spirit level bottom is connected with pellicle (5), deformation through lax water-stop membrane (6) makes big post cavity (1) interior liquid level rise, finally reach the balance, at this in-process, because the entering of fresh water in the little cylinder cavity (2) of lower part, will reduce the concentration of original conducting solution, thereby improve solution resistance.
2. Ultra-high precision hydrostatic level according to claim 1, characterized in that the temperature sensor (3) is fixed between the resistive sensor (4) and the semi-permeable membrane (5).
3. The ultra-high precision hydrostatic level according to claim 2, characterized in that the upper end of the loose water-stop film (6) is flush with the contact surface of the small cylindrical cavity (2) and the large cylindrical cavity (1).
4. The ultra-high precision hydrostatic level according to claim 3, wherein a connecting rod (8) is fixed on the upper end of the semi-permeable membrane (5), two resistance sensors (4) are arranged on the connecting rod (8) along the height direction, and the temperature sensor (3) is fixed between the two resistance sensors (4).
5. The ultra-high precision hydrostatic level according to claim 4, wherein the end of the semi-permeable membrane (5) remote from the small cylindrical cavity (2) is connectable to a water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911221910.1A CN110906905B (en) | 2019-12-03 | 2019-12-03 | Ultra-high precision static level gauge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911221910.1A CN110906905B (en) | 2019-12-03 | 2019-12-03 | Ultra-high precision static level gauge |
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| CN110906905A CN110906905A (en) | 2020-03-24 |
| CN110906905B true CN110906905B (en) | 2020-11-17 |
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Address after: 1558 Jiangnan Road, Ningbo hi tech Zone, Ningbo, Zhejiang 315100 Patentee after: Ningbo Langda Technology Co.,Ltd. Country or region after: China Address before: 1558 Jiangnan Road, Ningbo hi tech Zone, Ningbo, Zhejiang 315100 Patentee before: Ningbo Landa Engineering Technology Co.,Ltd. Country or region before: China |