CN104457908A - Novel liquid level measuring device - Google Patents
Novel liquid level measuring device Download PDFInfo
- Publication number
- CN104457908A CN104457908A CN201410758749.2A CN201410758749A CN104457908A CN 104457908 A CN104457908 A CN 104457908A CN 201410758749 A CN201410758749 A CN 201410758749A CN 104457908 A CN104457908 A CN 104457908A
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- China
- Prior art keywords
- electrode plate
- plate
- reference electrode
- battery lead
- environment battery
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- 239000007788 liquid Substances 0.000 title claims abstract description 31
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 26
- 230000007613 environmental effect Effects 0.000 abstract 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The invention discloses a novel liquid level measuring device, which comprises an environmental electrode plate left on a measured liquid, a reference electrode plate used for remaining in the tested liquid and a vertical measuring electrode plate used for being vertically inserted into the tested liquid and partially remaining above the tested liquid, the measuring device also comprises a grounding capacitance sensor used for measuring the capacitance value C1 of the isolated conductor of the environmental electrode plate, the capacitance value C2 of the isolated conductor of the reference electrode plate and the capacitance value C3 of the isolated conductor of the vertical measuring electrode plate, the environment electrode plate, the reference electrode plate and the vertical measuring electrode plate are respectively and electrically connected with the detection signal input end of the grounding capacitance sensor, and the grounding capacitance sensor is also electrically connected with a controller for calculating the depth of the vertical measuring electrode plate inserted into the liquid according to the capacitance measuring result of the grounding capacitance sensor. The present case simple structure easily realizes that the suitability is good.
Description
[technical field]
The present invention relates to a kind of novel liquid level measurement mechanism.
[background technology]
At present, the level gauging mode on market is varied, has applying ultrasonic lever meter to measure mode, has radar level gauging mode, has static pressure level gauging mode, has float-ball type level measuring mode etc.
But existing liquid level emasuring device can be subject to the impact of environment or fluid to be measured usually when measuring, make testing result have deviation, and by restrictions such as principle of work, the applicability of some liquid level emasuring devices is bad, compatible little.
Therefore, be necessary to solve as above problem.
[summary of the invention]
Instant invention overcomes the deficiency of above-mentioned technology, provide a kind of novel liquid level measurement mechanism, its structure is simple and easy to realize, and applicability is good.
For achieving the above object, present invention employs following technical proposal:
A kind of novel liquid level measurement mechanism, include the environment battery lead plate 1 for staying on fluid to be measured, for staying the reference electrode plate 2 in fluid to be measured, and for vertically inserting in fluid to be measured and the vertical potential electrode plate 3 partly stayed on fluid to be measured, described environment battery lead plate 1, reference electrode plate 2 is all flat, it is known that the plate section of described environment battery lead plate 1 amasss S1, it is known that the plate section of described reference electrode plate 2 amasss S2, described vertical potential electrode plate 3 is in flat rectangular shape, its width L and vertical height H3 is known, described measurement mechanism also includes for measurement environment battery lead plate 1 isolated conductor capacitance C1, reference electrode plate 2 isolated conductor capacitance C2, and the direct earth capacitance sensor 4 of vertical potential electrode plate 3 isolated conductor capacitance C3, described environment battery lead plate 1, reference electrode plate 2, and vertical potential electrode plate 3 is electrically connected with the detection signal input end of described direct earth capacitance sensor 4 respectively, described direct earth capacitance sensor 4 is also electrically connected with for calculating according to the capacitance measurements of direct earth capacitance sensor 4 controller 5 that described vertical potential electrode plate 3 inserts liquid depth Hx.
A kind of novel liquid level measurement mechanism as above, described measurement mechanism also includes support 100, and described environment battery lead plate 1, reference electrode plate 2, vertical potential electrode plate 3, direct earth capacitance sensor 4, controller 5 are all arranged on described support 100.
A kind of novel liquid level measurement mechanism as above, described vertical potential electrode plate 3 lower end is inserted into the bottom of fluid to be measured.
As optimal enforcement mode, described environment battery lead plate 1, reference electrode plate 2 are all flat rectangular shape, and its width is all L and length is all H1, and the height H 3 of described vertical potential electrode plate 3 is greater than the length H1 of described environment battery lead plate 1, reference electrode plate 2;
Or environment battery lead plate 1, reference electrode plate 2 are all flattened round as above.
Compared with prior art, the invention has the beneficial effects as follows:
1, structure is simple and easy to realize, have employed environment battery lead plate, reference electrode plate and vertical potential electrode plate, direct earth capacitance sensor, controller stretch into liquid depth Hx to measure vertical potential electrode plate, it is easy to detect, the kind of testing result Hx and liquid has nothing to do, applicability is good, compatible good.
2, environment battery lead plate, reference electrode plate, vertical potential electrode plate, direct earth capacitance sensor, controller are all installed on the bracket, so, make to use and implement more convenient, detect more convenient.
3, vertical potential electrode plate lower end is inserted into the bottom of fluid to be measured, and so, the Hx measured just equals the degree of depth of liquid, so that the utilization of reality.
4, environment battery lead plate, reference electrode plate are all flat rectangular shape, and its width is all L and length is all H1, and it is convenient to the calculating of Hx.
5, the height H 3 of vertical potential electrode plate is greater than the length H1 of described environment battery lead plate, reference electrode plate, and it is convenient to the bottom that described vertical potential electrode plate lower end is inserted into fluid to be measured easily, so, is convenient to the degree of depth measuring fluid to be measured.
6, environment battery lead plate, reference electrode plate are all flattened round, so, be convenient to reduce environment battery lead plate, reference electrode plate takes up room.
[accompanying drawing explanation]
Fig. 1 is structural drawing of the present invention.
[embodiment]
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
As shown in Figure 1, a kind of novel liquid level measurement mechanism, include the environment battery lead plate 1 for staying on fluid to be measured, for staying the reference electrode plate 2 in fluid to be measured, and for vertically inserting in fluid to be measured and the vertical potential electrode plate 3 partly stayed on fluid to be measured, described environment battery lead plate 1, reference electrode plate 2 is all flat, it is known that the plate section of described environment battery lead plate 1 amasss S1, it is known that the plate section of described reference electrode plate 2 amasss S2, described vertical potential electrode plate 3 is in flat rectangular shape, its width L and vertical height H3 is known, described measurement mechanism also includes for measurement environment battery lead plate 1 isolated conductor capacitance C1, reference electrode plate 2 isolated conductor capacitance C2, and the direct earth capacitance sensor 4 of vertical potential electrode plate 3 isolated conductor capacitance C3, described environment battery lead plate 1, reference electrode plate 2, and vertical potential electrode plate 3 is electrically connected with the detection signal input end of described direct earth capacitance sensor 4 respectively, described direct earth capacitance sensor 4 is also electrically connected with for calculating according to the capacitance measurements of direct earth capacitance sensor 4 controller 5 that described vertical potential electrode plate 3 inserts liquid depth Hx.
Principle of work and the use procedure of this case are as follows:
During measurement, reference electrode plate 2 is in fluid to be measured and vertical potential electrode plate 3 part vertically stretches in fluid to be measured, another part exposes in the environment, then, direct earth capacitance sensor 4 measures environment battery lead plate 1 isolated conductor capacitance C1, reference electrode plate 2 isolated conductor capacitance C2 and vertical potential electrode plate 3 isolated conductor capacitance C3.
As mentioned above, wherein, capacitance C3 is the algebraic sum on the capacitance C under the capacitance C of vertical potential electrode plate 3 in fluid to be measured with vertical potential electrode plate 3 on fluid to be measured, namely to have under C3=C on+C, and the measurement environment of vertical potential electrode plate 3 upper part is the same with the measurement environment of environment battery lead plate 1, namely their specific inductive capacity are identical, and, the measurement environment of vertical potential electrode plate 3 lower part is the same with the measurement environment of reference electrode plate 2, and namely their specific inductive capacity are identical.
As mentioned above, the capacitance calculation formula of isolated conductor
three electrode plate and electromotive force are that the distance between the conductor of zero is identical, show that the size of capacitance is directly proportional to area, namely have:
and
Thus draw
As mentioned above, finally show that vertical potential electrode plate 3 stretches into liquid depth
As mentioned above, vertical potential electrode plate 3 lower end is vertically inserted into the bottom of fluid to be measured, so, makes the Hx measured be the degree of depth of fluid to be measured.
As mentioned above, this case structure is simple and easy to realize, have employed environment battery lead plate 1, reference electrode plate 2 and vertical potential electrode plate 3, direct earth capacitance sensor 4, controller 5 stretch into liquid depth Hx to measure vertical potential electrode plate 3, it is easy to detect, the kind of testing result Hx and liquid has nothing to do, and applicability is good.
As mentioned above, during enforcement, described environment battery lead plate 1, reference electrode plate 2 are all flat rectangular shape, and its width is all L and length is all H1, is convenient to the calculating of Hx, draws after simplification
As mentioned above, this measurement mechanism also includes support 100, and described environment battery lead plate 1, reference electrode plate 2, vertical potential electrode plate 3, direct earth capacitance sensor 4, controller 5 are all arranged on described support 100, so, make to use and implement more convenient, detect more convenient.
As mentioned above, as optimal enforcement mode, the height H 3 of described vertical potential electrode plate 3 is greater than the length H1 of described environment battery lead plate 1, reference electrode plate 2, so that make described vertical potential electrode plate 3 lower end be inserted into the bottom of fluid to be measured easily, so, the degree of depth measuring fluid to be measured is convenient to.
Or environment battery lead plate 1 as above, reference electrode plate 2 be all flattened round, so, be convenient to reduction environment battery lead plate 1, reference electrode plate 2 takes up room.
As mentioned above, what this case was protected is a kind of novel liquid level measurement mechanism, and all technical schemes identical or close with this case structure all should be shown for falling in the protection domain of this case.
Claims (5)
1. a novel liquid level measurement mechanism, it is characterized in that including the environment battery lead plate (1) for staying on fluid to be measured, for staying the reference electrode plate (2) in fluid to be measured, and for vertically inserting in fluid to be measured and the vertical potential electrode plate (3) of partly staying on fluid to be measured, described environment battery lead plate (1), reference electrode plate (2) is all flat, it is known that the plate section of described environment battery lead plate (1) amasss S1, it is known that the plate section of described reference electrode plate (2) amasss S2, described vertical potential electrode plate (3) is in flat rectangular shape, its width L and vertical height H3 is known, described measurement mechanism also includes for measurement environment battery lead plate (1) isolated conductor capacitance C1, reference electrode plate (2) isolated conductor capacitance C2, and the direct earth capacitance sensor (4) of vertical potential electrode plate (3) isolated conductor capacitance C3, described environment battery lead plate (1), reference electrode plate (2), and vertical potential electrode plate (3) is electrically connected with the detection signal input end of described direct earth capacitance sensor (4) respectively, described direct earth capacitance sensor (4) is also electrically connected with for calculating according to the capacitance measurements of direct earth capacitance sensor (4) controller (5) that described vertical potential electrode plate (3) inserts liquid depth Hx.
2. a kind of novel liquid level measurement mechanism according to claim 1, it is characterized in that described measurement mechanism also includes support (100), described environment battery lead plate (1), reference electrode plate (2), vertical potential electrode plate (3), direct earth capacitance sensor (4), controller (5) are all arranged on described support (100).
3. a kind of novel liquid level measurement mechanism according to claim 1, is characterized in that described vertical potential electrode plate (3) lower end is inserted into the bottom of fluid to be measured.
4. a kind of novel liquid level measurement mechanism according to claim 1-3 any one, it is characterized in that described environment battery lead plate (1), reference electrode plate (2) is all flat rectangular shape, its width is all L and length is all H1, and the height H 3 of described vertical potential electrode plate (3) is greater than the length H1 of described environment battery lead plate (1), reference electrode plate (2).
5. a kind of novel liquid level measurement mechanism according to claim 1-3 any one, is characterized in that described environment battery lead plate (1), reference electrode plate (2) is all flattened round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410758749.2A CN104457908A (en) | 2014-12-10 | 2014-12-10 | Novel liquid level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410758749.2A CN104457908A (en) | 2014-12-10 | 2014-12-10 | Novel liquid level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104457908A true CN104457908A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410758749.2A Pending CN104457908A (en) | 2014-12-10 | 2014-12-10 | Novel liquid level measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104457908A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880234A (en) * | 2015-06-02 | 2015-09-02 | 广东美的厨房电器制造有限公司 | Liquid level sensor and liquid level detection method |
| CN106404112A (en) * | 2016-11-30 | 2017-02-15 | 南京高华科技股份有限公司 | Method and device for calibration-free measurement of capacitive liquid level sensor |
| CN106441502A (en) * | 2016-08-29 | 2017-02-22 | 长春迪瑞医疗科技股份有限公司 | Device and method for noncontact measuring of remaining reagent amount |
| CN107518851A (en) * | 2017-08-02 | 2017-12-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish-washing machine and its liquid level detection device and liquid-level detecting method |
| CN108181741A (en) * | 2018-01-05 | 2018-06-19 | 京东方科技集团股份有限公司 | A kind of test device and its method of display panel film layer stripping position |
| CN109642814A (en) * | 2016-08-23 | 2019-04-16 | 半导体组件工业公司 | Capacitance level transducer |
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| US6337959B1 (en) * | 1999-11-24 | 2002-01-08 | Samsung Electronics Co., Ltd. | Liquid level detector and liquid level measuring apparatus of printer adopting the same |
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2014
- 2014-12-10 CN CN201410758749.2A patent/CN104457908A/en active Pending
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880234A (en) * | 2015-06-02 | 2015-09-02 | 广东美的厨房电器制造有限公司 | Liquid level sensor and liquid level detection method |
| CN109642814A (en) * | 2016-08-23 | 2019-04-16 | 半导体组件工业公司 | Capacitance level transducer |
| CN106441502A (en) * | 2016-08-29 | 2017-02-22 | 长春迪瑞医疗科技股份有限公司 | Device and method for noncontact measuring of remaining reagent amount |
| CN106404112A (en) * | 2016-11-30 | 2017-02-15 | 南京高华科技股份有限公司 | Method and device for calibration-free measurement of capacitive liquid level sensor |
| CN107518851A (en) * | 2017-08-02 | 2017-12-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish-washing machine and its liquid level detection device and liquid-level detecting method |
| CN107518851B (en) * | 2017-08-02 | 2020-06-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish washing machine and liquid level detection device and liquid level detection method thereof |
| CN108181741A (en) * | 2018-01-05 | 2018-06-19 | 京东方科技集团股份有限公司 | A kind of test device and its method of display panel film layer stripping position |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |