CN202974384U - Capacitive flexible electronic water gauge - Google Patents
Capacitive flexible electronic water gauge Download PDFInfo
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- CN202974384U CN202974384U CN 201220625835 CN201220625835U CN202974384U CN 202974384 U CN202974384 U CN 202974384U CN 201220625835 CN201220625835 CN 201220625835 CN 201220625835 U CN201220625835 U CN 201220625835U CN 202974384 U CN202974384 U CN 202974384U
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- flexible
- water gauge
- capacitor plates
- capacitor plate
- electronic water
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Abstract
The utility model discloses a capacitive flexible electronic water gauge, which comprises a flexible gauge body serving as a sensing element, and a processing circuit, wherein the flexible gauge body comprises a plurality of flexible capacitor plates which are arranged in rows and water gauge support bodies which are embedded into the flexible capacitor plates, and is used for enhancing the strength of the gauge body and preventing errors caused by size expansion and contraction of the electronic water gauge in the length direction; the flexible capacitor plates are connected with the processing circuit through circuits, so that a water level measuring function is realized; and every two flexible capacitor plates are arranged in a staggered way. The capacitive flexible electronic water gauge provided by the utility model is simple in structure, is convenient to use, has high resolving power, small accumulated errors and large water level measuring range, and can be bent and coiled; the flexible capacitor plates are taken as sensing elements, and are applied to analogue measurement and digital measurement; high resolving power is achieved during analogue measurement of the capacitor plates, and accumulated errors are reduced during digital measurement of the capacitor plates; and the gauge body is made of a flexible material.
Description
Technical field
The utility model relates to a kind of condenser type flexible electronic water gauge.
Background technology
At present, the level gauging instrument of prior art has capacitance level gauge, electric water gauge or electrode-type liquid-level meter; There is following defective:
1, capacitance level gauge is due to the limitation of measuring principle, and the range of high-precision capacitance-type liquid level gauge is all very little, can not satisfy the needs of wide range.
2, the measurement of electric water gauge relies on electrode to measure with contacting of the water surface, and resolving power is higher or range is larger, and the quantity of electrode is just more, increases the range difficulty.The chi body of electric water gauge is all made by rigid material, is subjected to the restriction of traffic condition, and the monomer length of electric water gauge is all very short.
3, in many application scenarios, the level measuring passage both bending and the water level range large, make capacitance level gauge and electric water gauge to use.
The utility model content
Purpose: in order to overcome the deficiencies in the prior art, the utility model provides a kind of condenser type flexible electronic water gauge, simple in structure, easy to use, resolving power is high, cumulative errors are little, the water level range large, electric water gauge can twist, and utilizes flexible capacitor plate as sensing element, capacitor plate not only is used for analogue measurement but also be used for digital measurement, the analogue measurement of capacitor plate obtains high resolution, and the digital measurement of capacitor plate reduces cumulative errors, adopts flexible material as the chi body.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of condenser type flexible electronic water gauge is characterized in that: comprise flexible chi body and treatment circuit as sensing element; Described flexible chi body comprises a plurality of flexible capacitor plates that set in a row and is embedded in the interior water gauge supporter of a plurality of flexible capacitor plates, is used for improving the intensity of chi body and prevents the flexible generation of electric water gauge lengthwise dimension error; Described flexible capacitor plate connects by circuit with treatment circuit, is used for realizing the function of level measuring.
Described flexible chi body is the two adjacent flexible capacitor plate staggered structures of row, and when being used for preventing adjacent two flexible capacitor plate transition, the interruption of simulation value, can smoothly join simulation value and digital numerical value.
Described flexible capacitor plate covers the metallic film structure for the flexible nonmetal material that can twist.
Described water gauge supporter is the strengthening core structure.
Described treatment circuit is comprised of the low-power consumption microprocessor.
Described flexible chi body has concurrently as the analog parameter measuring pad with as the function of the potential electrode of digital parameters.
Beneficial effect: the condenser type flexible electronic water gauge that the utility model provides, has following advantage: have 1, that resolving power is high, cumulative errors are little, range is large, can roll up the curved obvious advantage of transporting and being convenient to use at crooked environment be convenient to, it had both possessed the advantage of analogue measurement high resolution, have advantages of that again the digital measurement cumulative errors are little, can to twist simultaneously have advantages of convenient transportation and can use at bending channel, solved the problem of wide range, high resolution, low measuring error, bending channel level gauging.2, the wide range condenser type flexible electronic water gauge made of flexible capacitor plate, belong to the combination of analogue measurement and digital measurement, it takes full advantage of the physical characteristics of capacitor plate and carries out analogue measurement, making capacitor plate is digital electrode, it is again the simulation pole plate, not only reduce the quantity of capacitor plate, improved simultaneously measurement resolution.3, the capacitor plate of flexible electronic water gauge, chi body all adopt flexible material to make, and the chi body is embedded in the intensity that strengthening core is used for improving the chi body, prevent the flexible of chi body length size.Electric water gauge can twist, and not only convenient transportation, can use at bending channel again.4, utilization scope is wide: the water level detecting that is particularly useful for the fields such as water conservancy, geology, ocean.High resolution wide range flexible electronic water gauge almost can substitute existing any water-level gauge.5, because it is simple in structure, low cost of manufacture, reliability are high, and use value and economic worth are all very obvious.
Description of drawings
Fig. 1 is the structural representation of flexible capacitor plate in the utility model;
Fig. 2 is principle of work schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
The utility model is a kind of condenser type flexible electronic water gauge, comprises flexible chi body 10 and treatment circuit as sensing element; Described flexible chi body 10 comprises a plurality of flexible capacitor plates that set in a row 20 and is embedded in the interior water gauge supporter of a plurality of flexible capacitor plates, is used for improving the intensity of chi body and prevents the flexible generation of electric water gauge lengthwise dimension error; Described flexible capacitor plate 20 connects by circuit with treatment circuit, is used for realizing the function of level measuring.Described flexible chi body 10 is two adjacent flexible capacitor plate 20 staggered structures of row, and when being used for preventing adjacent two flexible capacitor plate 20 transition, the interruption of simulation value, can smoothly join simulation value and digital numerical value.Described flexible capacitor plate 20 covers the metallic film structure for the flexible nonmetal material that can twist; Described water gauge supporter is the strengthening core structure; Described treatment circuit is comprised of the low-power consumption microprocessor; Described flexible chi body 10 has concurrently as the analog parameter measuring pad with as the function of the potential electrode of digital parameters.
One, sensing capacitance: its capacitor plate covers metal film by flexible nonmetal material to be made, and has guaranteed the flexibility of electric water gauge.By the high resolution character of capacitance measurement, guaranteed the high resolution of electric water gauge
Two, analogue measurement: in analogue measurement, capacitor plate is a face, and when capacitor plate entered in water, underwater penetration was different, and capacitor plate is just different from the electric capacity that water forms, the capacitance conversion underwater penetration that forms by measuring capacitor plate and water.Analogue measurement has guaranteed the high resolution of measuring.
Three, digital measurement: in digital measurement, capacitor plate is a point, when water surface capacitor plate enters in water, is determined the integer numerical value of water level by the number of capacitor plate in front submergence and water.Because the positional precision of capacitor plate is to be determined by the mechanical precision of processing, there is not the transformed error of indirect conversion, thereby guaranteed low cumulative errors.
Four, be staggered: adjacent two capacitor plates are staggered, and the interruption of simulation value in the time of can preventing adjacent two capacitor plate transition can smoothly join simulation value and digital numerical value.When wherein certain capacitor plate damaged, 2 capacitor plates adjacent with damaging capacitor plate still can be completed the work that damages capacitor plate.
Five, reference capacitance: utilize the principle of capacitance sensing to measure liquid level, the impacts such as measuring accuracy liquid body and insulator dielectric constant, environment temperature, electrical parameter just can be eliminated these errors by equivalent environment, electric capacity that determine length.Because the area of each capacitor plate is known, upper one flood capacitor plate and current water surface capacitor plate nearest, the parameters of these 2 capacitor plates is the most approaching, utilize one to flood capacitor plate as reference electric capacity, guaranteed the measuring accuracy of current water surface capacitor plate capacitance.
Six, flexible chi body: the water gauge supporter is made by the embedded flexible strengthening core of flexible nonmetal material, both can guarantee the flexibility of electric water gauge, can prevent again electric water gauge lengthwise dimension error.Flexible chi body can be rolled up curved, is convenient to transportation, and on-the-spot directly expansion of level measuring used, and need not the secondary splicing.Flexible chi body also can measured the use of channel bends occasion simultaneously.
Principle of work of the present utility model is as follows:
1, capacitor plate is staggered and redundant correcting:
Adjacent two capacitor plates are staggered, and the interruption of simulation value in the time of can preventing adjacent two capacitor plate transition can smoothly join simulation value and digital numerical value.
As shown in Figure 1, when the water surface is in No. 3 capacitor plate positions, when the water surface during lower than No. 3 capacitor plates 1/2, No. 2 capacitor plates and No. 3 capacitor plates are in measurable unsaturation capacitance position simultaneously, when the water surface during higher than No. 3 capacitor plates 1/2, No. 3 capacitor plates and No. 4 capacitor plates are in measurable unsaturation capacitance position simultaneously.Always have 2 capacitor plates to be in simultaneously measurable unsaturation capacitance position at synchronization in other words, when wherein certain capacitor plate damaged, 2 capacitor plates adjacent with damaging capacitor plate still can be completed the work that damages capacitor plate.Even capacitor plate does not damage, there are simultaneously 2 capacitor plates to participate in measuring and also 2 measurement results can be compared, the rationality of judgement measurement result.
2, reference capacitance:
Utilize the principle of capacitance sensing to measure liquid level, the impacts such as measuring accuracy liquid body and insulator dielectric constant, environment temperature, electrical parameter just can be eliminated these errors by equivalent environment, capacitance that determine length.
As shown in Figure 2, when the water surface during higher than No. 3 capacitor plates 1/2, No. 3 capacitor plates and No. 4 capacitor plates are in measurable unsaturation capacitance position simultaneously, and namely capacitor C 3 and C4 can measure the height of water level.This moment, No. 1 capacitor plate and 2 capacitor plates were in complete submerged state, namely capacitor plate height be exactly known, capacitance C1=C2.No. 1 capacitor plate and 2 capacitor plates are also No. 3 capacitor plates of distance and the nearest capacitor plate of 4 capacitor plates, and every environmental parameter of C1 and C2 capacitor plate and C3 and C4 are the most approaching.At first will the measuring junction of C1 be connected with the B end of metering circuit by K1 before measurement, and the measuring junction of C2 be connected with the A end of metering circuit with KS by K2, the capacitance that record this moment is the series value of C1, C2.Because the height of C1, C2 capacitor plate is known, the environmental parameter of C3, C4 can be passed through C1, C2 gain of parameter, and this moment, C1, C2 were exactly the reference capacitance of C3, C4.
3, the measurement of water level simulation value:
By K2, the measuring junction of C2 is connected with the B end of metering circuit when measuring C3, the measuring junction of C3 is connected with the A end of metering circuit with KS by K3, the capacitance that record this moment is the series value of C2, C3; By K2, the measuring junction of C2 is connected with the B end of metering circuit when measuring C4, the measuring junction of C4 is connected with the A end of metering circuit with KS by K4, the capacitance that record this moment is the series value of C2, C4.
4, the measurement of water level digital numerical value:
Can know that by the judgement of C2, C3, C4 capacitance the capacitor plate of C2 is in complete submerged state, therefore can know that water level is in the digital height value of capacitor plate 2.Because the electrode size of electric water gauge is that machining is determined, do not have transformed error, cumulative errors are little.
5, the judgement of the rationality of water level is complementary with the redundancy of electrode:
Can obtain the true altitude of current water level by C3, C4, the height of water level that is obtained by C3, C4 in theory should be consistent, just can judge the rationality of height of water level by the consistance that judges C3, C4.If C3 lost efficacy, can obtain water level value by C4, if instead C4 lost efficacy, also can obtain water level value by C3.C3, C4 have realized that redundancy is complementary.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. condenser type flexible electronic water gauge, is characterized in that: comprise flexible chi body and treatment circuit as sensing element; Described flexible chi body comprises a plurality of flexible capacitor plates that set in a row and is embedded in the interior water gauge supporter of a plurality of flexible capacitor plates, is used for improving the intensity of chi body and prevents the flexible generation of electric water gauge lengthwise dimension error; Described flexible capacitor plate connects by circuit with treatment circuit, is used for realizing the function of level measuring.
2. condenser type flexible electronic water gauge according to claim 1, it is characterized in that: described flexible chi body is the two adjacent flexible capacitor plate staggered structures of row, when being used for preventing adjacent two flexible capacitor plate transition, the interruption of simulation value, can smoothly join simulation value and digital numerical value.
3. condenser type flexible electronic water gauge according to claim 1 is characterized in that: described flexible capacitor plate covers the metallic film structure for the flexible nonmetal material that can twist.
4. condenser type flexible electronic water gauge according to claim 1, it is characterized in that: described water gauge supporter is the strengthening core structure.
5. condenser type flexible electronic water gauge according to claim 1, it is characterized in that: described treatment circuit is comprised of the low-power consumption microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625835 CN202974384U (en) | 2012-11-23 | 2012-11-23 | Capacitive flexible electronic water gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625835 CN202974384U (en) | 2012-11-23 | 2012-11-23 | Capacitive flexible electronic water gauge |
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| Publication Number | Publication Date |
|---|---|
| CN202974384U true CN202974384U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220625835 Expired - Lifetime CN202974384U (en) | 2012-11-23 | 2012-11-23 | Capacitive flexible electronic water gauge |
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| Country | Link |
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| CN (1) | CN202974384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944287A (en) * | 2012-11-23 | 2013-02-27 | 水利部南京水利水文自动化研究所 | Capacitance type flexible electronic tide staff |
| WO2016162424A1 (en) * | 2015-04-08 | 2016-10-13 | Plastic Omnium Advanced Innovation And Research | Device for measuring the level of a liquid |
-
2012
- 2012-11-23 CN CN 201220625835 patent/CN202974384U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944287A (en) * | 2012-11-23 | 2013-02-27 | 水利部南京水利水文自动化研究所 | Capacitance type flexible electronic tide staff |
| WO2016162424A1 (en) * | 2015-04-08 | 2016-10-13 | Plastic Omnium Advanced Innovation And Research | Device for measuring the level of a liquid |
| FR3034865A1 (en) * | 2015-04-08 | 2016-10-14 | Inergy Automotive Systems Res (Societe Anonyme) | DEVICE FOR MEASURING THE LEVEL OF A LIQUID |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |