CN206177407U - Continuous charge level indicator of components of a whole that can function independently electrode - Google Patents
Continuous charge level indicator of components of a whole that can function independently electrode Download PDFInfo
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- CN206177407U CN206177407U CN201621218917.XU CN201621218917U CN206177407U CN 206177407 U CN206177407 U CN 206177407U CN 201621218917 U CN201621218917 U CN 201621218917U CN 206177407 U CN206177407 U CN 206177407U
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Abstract
The utility model discloses a continuous charge level indicator of components of a whole that can function independently electrode, this charge level indicator arranges with the separation on the space is measured through the components of a whole that can function independently design structurally of single measuring electrode that especially a plurality of components of a whole that can function independently measuring electrode arrange and arrange with the mixture of integrative electrode in the intersection stack of measurement space, utilize procedural operation to measured data, discernment and judge, realizes judging and generating the accurate of material level. The utility model discloses a needed complicated switching means and the cooperation of numerous integrative electrode to use in the past to need the complicated measurement effect that could realize that designs. Structurally, greatly reduce the connecting cable between measuring electrode and operation part, greatly reduced switching means's structure complexity, greatly promoted measurement response speed, and switching means that don't be leading etc. Adverse circumstances such as adaptable high temperature, vibrations. Always measure under the unchangeable length waiting, greatly promote measurement accuracy, showing reduction equipment volume, quality, greatly expanded the application field.
Description
Technical field
The utility model is related to level-sensing device field, more particularly to a kind of split electrode continuous material level meter.
Background technology
Electric capacity (radio frequency) level-sensing device has been widely used in various industrial occasions since by utility model, is divided into out
Measure and two kinds of forms of continuous quantity pass.As continous way electric capacity (radio frequency) form and radar, the ultrasonic wave of continuous measurement material, lead
It is equally continuous measurement material position mode main at present to broadcast radar, pressure type level-sensing device.But, in actual use due to measurement
Object dielectric property is continually changing, and either still to increase an electrode on this basis former using radio frequency admittance for capacitance principle
All there is serious measurement accuracy difference and poor reliability in reason continous way level-sensing device, badly influence such principle product and exist
Industry spot it is actually used.On the basis of continous way electric capacity (radio frequency) level-sensing device of single main electrode, multi-electrode formula is developed
Electric capacity (radio frequency) level-sensing device, using multiple measuring electrodes, realizes in different measurement ranges or measurement point position uses measurement electricity
Pole, is compared by the data of multiple measuring electrodes, is realized and is changed the identification for bringing and repair for measurement object dielectric characterization amount
Just, the accuracy of electric capacity (radio frequency) continuous material level meter measurement is improve to a certain extent.
Due to possessing multiple measuring electrodes, by independent measurement measuring electrode successively and with the space (thing between composite electrode
Material) capacitive characteristics amount, due to have material and without material electrode between measurement data significant difference, by the data of multiple electrodes compare with
COMPREHENSIVE CALCULATING, can accurately obtain the material position data of material.In being designed in actual product, in same measurement length range
Interior, measuring electrode quantity is more, and certainty of measurement is higher.For needing high-precision application scenario, it is necessary to many measuring electrodes.Respectively
The operation successively of individual measuring electrode, it is necessary to switching part, carries out interelectrode switching, while each measuring electrode and analytic operation
There is a cable to be electrically connected between part；More if any measuring electrode data, number of cables accordingly increases, switching part
Structure it is also more complicated, these requirements are to product design and actual production, using bringing the difficulty that cannot go beyond.
In order to solve, measuring electrode is more, the product actual design problem difficult with production, occurs in that later using less survey
Amount electrode does demarcation electrode, aids in a design for main measuring electrode.Such as the application number for having failed：97245511.6
The such multi-electrode continuous capacitance level-sensing device of continuous capacitance sensor disclosed in patent, is calibrated using multiple measuring electrodes
Electrode, optimizes main measuring electrode data, realizes that the continuous measurement process of main electrode changes the amendment for bringing for material dielectric property
With optimization.It is such actual by the use of a small number of measuring electrodes as auxiliary calibration electrode, main measuring electrode is modified, to a certain degree
The upper less quantity of measuring electrode.But distance is big between each demarcates electrode, the precision of this interval measure it is difficult to ensure that, it is whole
Bulk measurement low precision.
And in a method for designing disclosed in patent CN02110211.2, divided switching part by similar bus structures
Dissipate and preposition, increased a kind of preposition handover module that can be encoded newly, measuring electrode is reduced to a certain extent and is transported with analysis
The quantity of the cable between part is calculated, the construction of cable is optimized.But, installed before the handover module of this built-in encoder
Meter, difficult design, complex structure.And the parts such as the electronic chip inside the handover module of front end are difficult to be disliked in high temperature, vibrations etc.
Worked for a long time in bad environment, reliability is not high in operation, cost but increases much, and working service is also more difficult.Especially electronics
The operating temperature of part is restricted than larger.The preposition mechanism's circuit design of this switching part, also in the presence of serious deficiency.Together
When, this kind of scheme in small measurement range, it is necessary to numerous measuring electrodes ensure precision running environment requirement in, using more be stranded
Difficulty, preposition switching part increases the volume of equipment in itself, and device structure is difficult.When measuring electrode quantity is more than more than 10
When, the wiring of electrode part and the structure design of switching part are just abnormal difficult, or even are difficult to carry out！
Utility model content
Utility model purpose：For problems of the prior art, it is continuous that the utility model provides a kind of split electrode
Level-sensing device, to solve the problems, such as that certainty of measurement is not high or measuring apparatus are complicated in the prior art.
Technical scheme：The utility model provides a kind of split electrode continuous material level meter, including at electrode measurement part, computing
Reason part, at least one split measuring electrode and at least one counter-electrodes, the electrode measurement part are measured with the split
Electrode, the counter-electrodes and the APU are connected respectively, and the split measuring electrode at least possesses and is mutually electrically connected
The two split parts for connecing, the APU is used for the measurement data according to the electrode measurement part, by computing
Judge level of filler material.
Preferably, each described split part of the split measuring electrode by cable and/or bonding jumper and/or with institute
State the connector electrical connection of the identical material in split part.
Preferably, the split part arranges along the material position change direction of the measured material.
Preferably, the split electrode continuous material level meter includes at least two split measuring electrodes, and the different splits are surveyed
At least part of split part for measuring electrode is staggered.
Preferably, the split electrode continuous material level meter includes switching part and at least two split measuring electrodes；It is described
Switching part is connected with the electrode measurement part, is carried out for pair split measuring electrode being connected with the electrode measurement part
Switching, at least part of split part of the different split measuring electrodes is staggered.
Preferably, at least part of split part staggered row of bulk electrode described at least one and the split measuring electrode
Row, the APU is used for the split measurement according to corresponding to the result of electrode measurement part measurement judges material position
Electrode simultaneously determines whether the corresponding split part of material position.
Preferably, the bulk electrode is for N number of, and the common N groups in the split part, and every group of M is individual, each bulk electrode with it is every
Component body portion is staggered.
Preferably, the counter-electrodes are served as by the metal shell of container.
Preferably, the split electrode continuous material level meter also includes at least one large range measuring electrode, and the electrode is surveyed
Amount part is used to measure large range measuring electrode and the split measuring electrode the first measurement result of acquisition and the second survey
Amount result, the APU is used to be modified first measurement result according to second measurement result.
Preferably, the electrode measurement part is in a capacitive manner and/or radio frequency admittance mode is measured.
Beneficial effect：The utility model is designed by the split of single electrode so that each split of split measuring electrode
Part can only measure the data in a limited range, and APU is connected by the entirety for single split measuring electrode
Continuous data analysis, it can be determined that and material position is distinguished in that specific split part of split measuring electrode；And can be by number
According to analysis and computing, the specific material position of the specific generation of optimization.
Further, by the arranged crosswise for multiple split measuring electrode each split part in measurement space,
Can be easier to realize precisely sentencing for material position position with the mixed-arrangement of bulk electrode with or by split measuring electrode
It is disconnected.
The utility model, by the Split type structure design of measuring electrode, by ordered arrangement each other and one electricity
The combination arrangement and the comprehensive analytical capacity to measurement data of default Mathematical Modeling of pole, realize needing complicated switching part in the past
The function that could be completed is connected up with by large amount of complex；It is simple for structure efficiently, the significant increase essence of the measurement of continuous material level meter
Degree, accuracy and reliability, and it is adapted to the severe use environment such as high temperature.Especially in smaller measurement range, also may be used
Certainty of measurement is greatly improved.Extend field and the scope of application of such products application.
Brief description of the drawings
Figure 1A -1C are split electrode continuous material level meter and its split measuring electrode difference attachment structure schematic diagram；
Fig. 2 is the schematic diagram of split electrode continuous material level meter embodiment 1；
Fig. 3 is the schematic diagram of split electrode continuous material level meter embodiment 2；
Fig. 4 is the schematic diagram of split electrode continuous material level meter embodiment 3.
Specific embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Implementation method 1：
Present embodiments provide for a kind of most basic split electrode continuous material level meter, split electrode continuous material level meter master
Will by the electrode detection part 51 of measurement capacitive form, 52, counter-electrodes 53 of APU (can be with canister
Housing serves as), a split measuring electrode 54 constitutes.Wherein, the electrode detection part phase of APU and capacitive form
Connection, the electrode detection part of capacitive form is connected with the counter-electrodes, the split measuring electrode, electrode detection part,
A measuring loop is constituted between split measuring electrode, counter-electrodes and measured material.The electrode measurement of the capacitive form
Part, measures the electric capacity related physical quantity of material between the counter-electrodes and split measuring electrode, such as capacitance in real time.Fig. 2
Shown, the split measuring electrode is made up of four splits 4,5,6,7, between split electrically connect, for formed electrical connection can
Being, on measurement result influence small cable and/or be bonding jumper etc. (in parallel, series connection shown in Figure 1A, 1B) as far as possible, also may be used
To be and some connectors (Fig. 1 C) of split portion of material identical.4 splits are along level of filler material change direction arrangement, phase
There is the spacing distance of setting between mutually.When material floods 7 part of split, the APU can be obtained significantly
Capacitance, such as AF, when between material continues to increase, and is segmented 6 and 7, the capacitance that the APU is obtained, base
This is also equal to the value that is obtained during 7 segmentation, or incrementss are little.This is primarily due in effective electrode measurement area,
Material is equivalently employed without increasing, and although material reaches this measurement part, but the reality of this partial electrode is newly-increased to be had
Effect measurement area is substantially equal to zero or very small increase.When material continues to increase to flood 6 segmentation, the calculation process
The capacitance of component retrieval, increases to 2AF, successively material increase during, obtain capacitance be respectively AF, 2AF, 3AF,
4AF.And when material dielectric property changes, the capacitance that the APU is measured can may be respectively again
XAF、X2AF、X3AF、X4AF.In the present embodiment, in using material position uphill process, the split measuring electrode for measuring with match somebody with somebody
During being changed over time to the capacitance between measuring electrode, it will be apparent that difference is regular, the APU can be with
The characteristics of being measured according to default Mathematical Modeling combination split measuring electrode, carries out the judgement of thing position material position.Such as：Time change is
Δ T, capacitance change Δ C, when the value of Δ C/ Δs T is more than or equal to preset value A, APU judges that material position reaches one
Segmentation, and record material position；When the value of Δ C/ Δs T is less than or equal to preset value B, judge that material position is rested between fragments or also
The segmentation position of record.When the value of Δ C/ Δs T is more than or equal to preset value A again, APU judges that material position reaches the 2nd
Individual segmentation, and record material position.So judge material position change procedure according to Δ C/ Δs T and the relation of preset value successively.Because measurement
During split measuring electrode split part Δ C1/ Δs T much larger than split measuring electrode each split part connecting portion point it
Between Δ C2/ Δ T, even if so being also that can interpolate that material in this embodiment when the dielectric property of material changes
Material position.Δ C1/ Δs T can certainly be introduced and further eliminate what material characteristic change may bring divided by the value of Δ C2/ Δs T
Influence.If but complete respectively to be widely applied Measurement situation only by a split measuring electrode, it is difficult to, the implementation case
Material change is only suitable only for slow, in the case that material position change procedure regularity is strong.
APU is integrated in a housing or is separated in the way of electrically connecting and sets with the electrode measurement part
Put in different housings.
Implementation method 2：
Present embodiment is the improvement of implementation method 1, and the present embodiment passes through multiple split measuring electrodes, multiple one electricity
Mutual cooperation between pole, realize split electrode continuous material level meter under number operating modes big absolutely it is highly reliable with accurately measure.Institute
The split electrode continuous material level meter stated by 1 ', APU, 2 ', electrode measurement part, 3 ', counter-electrodes, 4 ', switching part
Part, 5 ', the 1-1 splits of split measuring electrode 1,6 ', the 1-2 splits of split measuring electrode 1,7 ', the 1-3 of split measuring electrode 1
Split, 8 ', the 1-4 splits of split measuring electrode 1,9 ', the 2-1 splits of split measuring electrode 2,10 ', split measuring electrode 2
2-2 splits, 11 ', the 2-3 splits of split measuring electrode 2,12 ', the 2-4 splits of split measuring electrode 2,13 ', split measurement electricity
The 3-1 splits of pole 3,14 ', the 3-2 splits of split measuring electrode 3,15 ', the 4-1 splits of split measuring electrode 4,16 ', split surveys
Measure the 4-2 splits of electrode 4,17 ', bulk electrode 1,18 ', bulk electrode 2,19 ', bulk electrode 3,20 ', bulk electrode 4.Institute
APU 1 ' is stated to be connected with the electrode measurement part 2 ', the electrode measurement part 2 ' and pairing the phase of measuring electrode 3 '
Company is connected with switching part 4 ', the switching part and split measuring electrode 1, split measuring electrode 2, split measuring electrode 3,
Split measuring electrode 4 and bulk electrode 1, bulk electrode 2, bulk electrode 3, bulk electrode 4 are connected, the switching part and institute
State APU to be connected, switching part is under APU control, and control split measuring electrode, one are electric
Pole constitutes measuring loop with counter-electrodes respectively.The measured value of the split measuring electrode be expressed as C1n, C2n, C3n,
C4n, the measured value of bulk electrode is respectively C1, C2, C3, C4.In the implementation case, 4 splits of split measuring electrode 1 can divide
It is not arranged between bulk electrode 1, bulk electrode 2, bulk electrode 3, bulk electrode 4, the split of split measuring electrode 2 is also arranged
Between bulk electrode 1, bulk electrode 2, bulk electrode 3, bulk electrode 4, and all it is arranged in order dividing in split measuring electrode 1
On body, the split of split measuring electrode 3 is arranged under bulk electrode 1 between bulk electrode 2, bulk electrode 3, split is surveyed
The split for measuring electrode 4 is arranged between bulk electrode 1, bulk electrode 2 and bulk electrode 3, bulk electrode 4, split measuring electrode
3rd, 4 split is respectively positioned on split measuring electrode 1,2.The APU 1 every time measurement obtain C1n, C2n,
C3n, C4n, C1, C2, C3, C4 value.First by judging C1, C2, C3, C4 value, judge material position in that bulk electrode annex (material
Position may above the bulk electrode or below), such as C1, C2, C3, C4 are more than preset value or | Cn-1-Cn | more than pre-
If value.Whether the APU 1 is more than preset value according to C1-C2 again and/or whether C3-C4 is more than preset value, judges
Material position is on the split part of specific which split measuring electrode.
Certainly, bulk electrode, the arrangement of split measuring electrode can as needed enter line translation, be pressed than as shown in Figure 3
It is followed successively by according to paper order from top to bottom：Bulk electrode 4, the 4-2 splits of split measuring electrode 4, the 2- of split measuring electrode 2
4 splits, the 1-4 splits of split measuring electrode 1, bulk electrode 3, the 3-2 splits of split measuring electrode 3, split measuring electrode 2
2-3 splits, the 1-3 splits of split measuring electrode 1, bulk electrode 2, the 4-1 splits of split measuring electrode 4, split measuring electrode 2
2-2 splits, the 1-2 splits of split measuring electrode 1, bulk electrode 1, the 3-1 splits of split measuring electrode 3, split measurement electricity
The 2-1 splits of pole 2, the 1-1 splits of split measuring electrode 1.
Present implementation can also not need bulk electrode, but by the Rational Arrangement reality of multiple split measuring electrodes
It is existing, wherein in preferred mode, the split of different split measuring electrodes is staggered.
Implementation method 3：
Present embodiment is the further improvement of implementation method 1, is mainly theed improvement is that on the basis of case study on implementation 1
Increase a bulk electrode long be large range measuring electrode 8 " (the main measuring electrode in Fig. 4).Present embodiment passes through split
Measuring electrode realizes the identification of split part material position, and with the relevant parameter of its modified result bulk electrode long so that one
The gamut measurement data of electrode is more accurate.What the implementation case was utilized is that split measuring electrode can be in Jie of measurement material
When electrical feature changes, still reliable measurements split part material position the characteristics of with the measurement number of its data correction bulk electrode long
According to.
In addition, present embodiment is identical with implementation method 1, does not repeat herein.
In the utility model, the electrode measurement part is if capacitance measurement part is to be measured according to capacitance measurement mode
When, the split measuring electrode level-sensing device at least needs a pairing measuring electrode；If the non-radio frequency of electrode measurement part is led
When measurement part of receiving is measured according to radio frequency admittance principle, the split measuring electrode level-sensing device at least needs two pairing measurements
Electrode.
In preferred embodiment of the present utility model, the split measuring electrode level-sensing device can also have output block,
For exporting analog quantity and/or digital quantity and/or switching value and/or pulse signal.
The above-mentioned level-sensing device of the utility model correspondence, also discloses a kind of material level measuring method based on the level-sensing device, including：
The electrode measurement part measures the electric signal between the split measuring electrode and the corresponding counter-electrodes, institute
State the corresponding split part of material position that APU determines material according to the change of the electric signal.
Preferably, above-said current signal is capacitance；The APU determines thing according to the change of the electric signal
The corresponding split part of material position of material includes：
When Δ C/ Δs T value >=preset value A when, the APU judges that material position reaches next split part
Corresponding segmentation；As the value≤preset value B of Δ C/ Δs T, the APU judge material position current split part with
Between the corresponding segmentation in next split part or rest on the corresponding segmentation in current split part；
The Δ T is time change, and Δ C is capacitance change.
In one embodiment, the split electrode continuous material level meter also includes switching part and at least one bulk electrode；
The material level measuring method also includes：
Switching part control not in the same time the electrode measurement part respectively with bulk electrode each described, each
Split measuring electrode is connected；
The electrode measurement part is carried out for each described bulk electrode, the electric signal of each split measuring electrode respectively
Measurement；
The APU judges material position with one electricity according to the electric signal measured for each described bulk electrode
The position relationship of pole simultaneously judges material position with the split part according to the electric signal for each split measuring electrode measurement
Position relationship.
In another embodiment, the split electrode continuous material level meter also includes at least one large range measuring electrode, described
Material level measuring method includes：
The electrode measurement part is to the large range measuring electrode and the corresponding electric signal of the split measuring electrode
Measure acquisition the first measurement result and the second measurement result；
The APU is modified according to second measurement result to first measurement result.
It is emphasized that in the utility model above-described embodiment, electrode measurement part in capacitance measurement mode as an example, but
In other embodiments, electrode measurement part can be with capacitance measurement mode and/or radio frequency admittance mode.
The respective embodiments described above only to illustrate technology design of the present utility model and feature, this are familiar with its object is to allow
The people of technology will appreciate that content of the present utility model and implements according to this, can not limit protection model of the present utility model with this
Enclose.All equivalent transformations done according to the utility model Spirit Essence or modification, should all cover in protection model of the present utility model
Within enclosing.
Claims (10)
1. a kind of split electrode continuous material level meter, it is characterised in that including electrode measurement part, APU, at least
Individual split measuring electrode and at least one counter-electrodes, the electrode measurement part and the split measuring electrode, the pairing
Electrode and the APU are connected respectively, and the split measuring electrode at least possesses two split portions being electrically connected to each other
Point, the APU is used for the measurement data according to the electrode measurement part, and level of filler material is judged by computing.
2. split electrode continuous material level meter according to claim 1, it is characterised in that the split measuring electrode each
The split part is electrically connected by the connector of cable and/or bonding jumper and/or material identical with the split part.
3. split electrode continuous material level meter according to claim 1, it is characterised in that the split part is along described tested
Measure the material position change direction arrangement of material.
4. split electrode continuous material level meter according to claim 3, it is characterised in that the split electrode continuous material level meter
Including switching part and at least two split measuring electrodes；The switching part is connected with the electrode measurement part, for right
The split measuring electrode being connected with the electrode measurement part is switched over, at least part of point of the different split measuring electrodes
Body portion is staggered.
5. split electrode continuous material level meter according to claim 3, it is characterised in that the split electrode continuous material level meter
Also include switching part and at least one bulk electrode；The switching part is connected with the electrode measurement part, for pair with
The connected electrode of the electrode measurement part is switched over.
6. split electrode continuous material level meter according to claim 5, it is characterised in that bulk electrode described at least one with
At least part of split part of the split measuring electrode is staggered, and the APU is used to be surveyed according to the electrode
The result of amount part measurement judges the bulk electrode corresponding to split measuring electrode or material position corresponding to material position.
7. split electrode continuous material level meter according to claim 6, it is characterised in that the bulk electrode is N number of, and institute
The common N groups in split part are stated, every group M, each bulk electrode is staggered with every component body portion.
8. split electrode continuous material level meter according to claim 1, it is characterised in that the counter-electrodes by container gold
Category housing serves as.
9. split electrode continuous material level meter according to claim 1, it is characterised in that the split electrode continuous material level meter
Also include at least one large range measuring electrode, the electrode measurement part is used to survey large range measuring electrode and the split
Amount electrode measures acquisition the first measurement result and the second measurement result, and the APU is used for according to described second
Measurement result is modified to first measurement result.
10. split electrode continuous material level meter according to claim 1, it is characterised in that the electrode measurement part is with electricity
Capacitance type and/or radio frequency admittance mode are measured.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621218917.XU CN206177407U (en) | 2016-11-11 | 2016-11-11 | Continuous charge level indicator of components of a whole that can function independently electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621218917.XU CN206177407U (en) | 2016-11-11 | 2016-11-11 | Continuous charge level indicator of components of a whole that can function independently electrode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643975A (en) * | 2016-11-11 | 2017-05-10 | 上海沃纳机电设备有限公司 | Separate electrode continuous material level indicator and measuring method thereof |
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2016
- 2016-11-11 CN CN201621218917.XU patent/CN206177407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643975A (en) * | 2016-11-11 | 2017-05-10 | 上海沃纳机电设备有限公司 | Separate electrode continuous material level indicator and measuring method thereof |
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