CN205103321U - Three -dimensional parallel -plate sensor - Google Patents
Three -dimensional parallel -plate sensor Download PDFInfo
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- CN205103321U CN205103321U CN201520878735.4U CN201520878735U CN205103321U CN 205103321 U CN205103321 U CN 205103321U CN 201520878735 U CN201520878735 U CN 201520878735U CN 205103321 U CN205103321 U CN 205103321U
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- electric field
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- 239000012212 insulator Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 36
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012856 packing Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 18
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a three -dimensional parallel -plate sensor, including three parallel plate electrode of group, every parallel plate electrode of group comprises two circular polar plates, and six circular polar plates become regular hexahedron shape and arrange that the electrode of each circular polar plate is qualified for the next round of competitions and is located the central part of circular polar plate, still including packing the insulator of well kenozooecium in order to support and to keep apart six circular polar plates between six circular polar plates. The utility model discloses three -dimensional parallel -plate sensor, for one -dimensional or two -dimensional direction's electric field measuring transducer, its measuring result receives to influence from the orientation in the electric field forer a short time, and it is higher to detect accuracy and stability, and this three -dimensional parallel -plate sensor, for one -dimensional or two -dimensional direction's electric field measuring transducer, it is changeed in calculating the relation of its surface charge with the electric field, can reflect measuring point electric field strength's size more accurately, and this three -dimensional parallel -plate sensor, its structure and preparation simple process, manufacturing cost is lower.
Description
Technical field
The utility model relates to a kind of sensor, particularly a kind of sensor for measuring electric field.
Background technology
About electric field measurement in high voltage, in prior art, mainly contain computing method and mensuration.
Computing method adopts the numerical analysis methods such as boundary element method, Analogue charge method, finite element method (FEM) and method of finite difference to calculate electric field.But many power equipments are due to complicated structure, and the problem of the relative complex such as surface filth, surface corona and pre-arcing process may be there is, make to obtain its surrounding space Electric Field Distribution by Computer Simulation more difficult, or due to computer software and hardware restriction, cause Computer Simulation overlong time, make the electric field result calculated cannot meet the needs of engineering real-time; Meanwhile, the mathematical model Electric Field Simulation result of some power equipments also needs to be verified by actual measurement.
Mensuration relates to the design of sensor, measuring in the alternating electric field under hyperbaric environment, electric-field sensor is as power frequency component receiving unit, the measurement performance of the direct influential system of quality of its performance, when rational sensor design can ensure that sensor is introduced into electric field, can not make original electric field that significantly distortion occurs.Traditional electric-field sensor major part is all one dimension sensor, such as, be easy to the parallel plate capacitor sensor designed and produced.Under the environment being applied to actual electrical field measurement, due to the direction unicity of one-dimensional measurement sensor, it accepts the induced signal perpendicular to parallel-plate direction; While staff's handheld device, due to the change of diverse location, the measured value of measurement point is made to there is the possibility changed greatly.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of three-dimensional parallel-plate sensor, and to solve the induced signal that existing one-dimensional measurement sensor only accepts single direction, detected value is subject to self-position variable effect, the technical matters of detection accuracy and poor stability.
The three-dimensional parallel-plate sensor of the utility model, comprises three groups of parallel-plate electrodes, and often organize parallel-plate electrode and be made up of two pieces of circular pole plates, six pieces of circular pole plates become regular hexahedron shape to arrange, the electrode outlet of each circular pole plate is positioned at the central part of circular pole plate; Also comprise and be filled in hollow bulb between six pieces of circular pole plates to support and the insulator of isolation six pieces of circular pole plates.
Preferably, described circular pole plate is copper coin, and described insulator is square bodily form epoxy resin body.
Preferably, the radius of described circular pole plate is 20mm, thickness is 1mm, the described two pieces of circular pole plates 44mm apart often organized in parallel-plate electrode.
The beneficial effects of the utility model:
1, the three-dimensional parallel-plate sensor of the utility model, relative to the electric field measurement sensor of one dimension or two-dimensional directional, its measurement result is less by self aspect effect in the electric field, detection accuracy and stability higher.
2, the three-dimensional parallel-plate sensor of the utility model, relative to the electric field measurement sensor of one dimension or two-dimensional directional, it is easier to the relation calculating its surface charge and electric field, can the size of more accurately reflected measurement point electric field intensity.
3, the three-dimensional parallel-plate sensor of the utility model, simply, production cost is lower for its structure and manufacture craft.
Accompanying drawing explanation
Fig. 1 is the perspective view of the three-dimensional parallel-plate sensor of the present embodiment;
Fig. 2 is the voltage source illustraton of model of one group of parallel circular plate electrode.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the three-dimensional parallel-plate sensor of the present embodiment, comprises three groups of parallel-plate electrodes, and often organize parallel-plate electrode and be made up of two pieces of circular pole plates 1, six pieces of circular pole plates become regular hexahedron shape to arrange, the electrode outlet 2 of each circular pole plate is positioned at the central part of circular pole plate; Also comprise and be filled in hollow bulb between six pieces of circular pole plates to support and the insulator 3 of isolation six pieces of circular pole plates.
The three-dimensional parallel-plate sensor of the present embodiment, be placed in tested electric field, every a pair parallel-plate electrode can sense the induced charge with electric field same frequency to be measured, and sensor obtains power frequency component by electrostatic induction principle, and each road power frequency component is converted to corresponding induced voltage signal.Then complete the respective handling to the induced voltage signal that sensor exports by analogy signal processing unit, then AD conversion is carried out to the signal of analog circuitry processes, the electric field intensity value E that analyzing and processing obtains each group of parallel-plate electrode correspondence direction is carried out to data
x, E
yand E
z, pass through formula
and overall treatment circuit obtains the electric field intensity of measurement point, complete the measurement of high-voltage electric field.
The three-dimensional parallel-plate sensor of the present embodiment, one can be used to be with the voltage source model of internal resistance to replace to the circuit theory analysis of one group of parallel circular plate electrode, voltage source model is as in accompanying drawing 2, figure
for equivalent induction power supply, ω is power-frequency voltage angular frequency, C
nfor the natural capacity of parallel-plate electric-field sensor, C
mfor external measurement electric capacity, R
ifor metering circuit input resistance,
for measuring system input voltage, by calculating:
Obtain measuring system input voltage
after, its effective value U can be obtained by the subsequent process circuit of system
irms, then induced voltage
effective value U
crmsfor:
If the spacing that two circular pole plates respectively organized by sensor is d, the induced voltage between the circular pole plate of each group is U, then can try to achieve the electric field intensity size E between one group of circular pole plate by formula E=U/d
1.So electric field effective value E
1for:
By subsequent process circuit and formula
just the electric field intensity of tested point can be obtained.
The three-dimensional parallel-plate sensor of the present embodiment, relative to the electric field measurement sensor of one dimension or two-dimensional directional, its measurement result is less by self aspect effect in the electric field, detection accuracy and stability higher; And relative to the electric field measurement sensor of one dimension or two-dimensional directional, it is easier to the relation calculating its surface charge and electric field, can the size of more accurately reflected measurement point electric field intensity; And the three-dimensional parallel-plate sensor of the present embodiment, simply, production cost is lower for its structure and manufacture craft.
In the present embodiment, described circular pole plate is copper coin, good conductivity, can obtain stronger induced voltage signal, and described insulator is square bodily form epoxy resin body, and good insulation preformance, can better eliminate influencing each other between each group of parallel-plate electrode.
In the present embodiment, the radius of described circular pole plate is 20mm, thickness is 1mm, and the described two pieces of circular pole plates 44mm apart often organized in parallel-plate electrode, adopts this physical dimension that the combination property of sensor in detection accuracy and manufacturing cost can be made better.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. a three-dimensional parallel-plate sensor, is characterized in that: comprise three groups of parallel-plate electrodes, and often organize parallel-plate electrode and be made up of two pieces of circular pole plates, six pieces of circular pole plates become regular hexahedron shape to arrange, the electrode outlet of each circular pole plate is positioned at the central part of circular pole plate; Also comprise and be filled in hollow bulb between six pieces of circular pole plates to support and the insulator of isolation six pieces of circular pole plates.
2. three-dimensional parallel-plate sensor according to claim 1, is characterized in that: described circular pole plate is copper coin, and described insulator is square bodily form epoxy resin body.
3. three-dimensional parallel-plate sensor according to claim 1, is characterized in that: the radius of described circular pole plate is 20mm, thickness is 1mm, the described two pieces of circular pole plates 44mm apart often organized in parallel-plate electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878735.4U CN205103321U (en) | 2015-11-06 | 2015-11-06 | Three -dimensional parallel -plate sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878735.4U CN205103321U (en) | 2015-11-06 | 2015-11-06 | Three -dimensional parallel -plate sensor |
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| CN205103321U true CN205103321U (en) | 2016-03-23 |
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| CN201520878735.4U Active CN205103321U (en) | 2015-11-06 | 2015-11-06 | Three -dimensional parallel -plate sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199223A (en) * | 2016-09-13 | 2016-12-07 | 重庆大学 | A kind of portable electric field measurement sensor |
| CN106546987A (en) * | 2016-11-04 | 2017-03-29 | 国网福建省电力有限公司泉州供电公司 | A kind of electrical body distance exam combined based on electric field, radar and alarm device |
| CN106556750A (en) * | 2016-11-16 | 2017-04-05 | 国网福建省电力有限公司 | Based on three-dimensional electric field measuring method mutually non-coplanar two-by-two |
| CN106767771A (en) * | 2016-12-02 | 2017-05-31 | 华中科技大学 | A kind of sensor device and magnetic ground drawing generating method for indoor navigation |
| CN111207787A (en) * | 2019-12-30 | 2020-05-29 | 国网河南省电力公司郑州供电公司 | High-voltage transmission line construction distance early warning device and method thereof |
-
2015
- 2015-11-06 CN CN201520878735.4U patent/CN205103321U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199223A (en) * | 2016-09-13 | 2016-12-07 | 重庆大学 | A kind of portable electric field measurement sensor |
| CN106546987A (en) * | 2016-11-04 | 2017-03-29 | 国网福建省电力有限公司泉州供电公司 | A kind of electrical body distance exam combined based on electric field, radar and alarm device |
| CN106556750A (en) * | 2016-11-16 | 2017-04-05 | 国网福建省电力有限公司 | Based on three-dimensional electric field measuring method mutually non-coplanar two-by-two |
| CN106767771A (en) * | 2016-12-02 | 2017-05-31 | 华中科技大学 | A kind of sensor device and magnetic ground drawing generating method for indoor navigation |
| WO2018098851A1 (en) * | 2016-12-02 | 2018-06-07 | 广东思谷智能技术有限公司 | Sensor device for indoor navigation and magnetic map generating method |
| CN106767771B (en) * | 2016-12-02 | 2019-10-01 | 华中科技大学 | A kind of magnetic of the sensor device for indoor navigation ground drawing generating method |
| CN111207787A (en) * | 2019-12-30 | 2020-05-29 | 国网河南省电力公司郑州供电公司 | High-voltage transmission line construction distance early warning device and method thereof |
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