CN103954849A - Electric field detection device - Google Patents
Electric field detection device Download PDFInfo
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- CN103954849A CN103954849A CN201410197801.1A CN201410197801A CN103954849A CN 103954849 A CN103954849 A CN 103954849A CN 201410197801 A CN201410197801 A CN 201410197801A CN 103954849 A CN103954849 A CN 103954849A
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- electric field
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Abstract
The invention provides an electric field detection device which at least comprises a bearing body, a reference electrode layer arranged on the bearing body and at least three induction electrode layers arranged on the bearing body and located above the reference electrode layer. Each induction electrode layer comprises at least four induction electrodes evenly distributed. An independent electric field measurement circuit is formed by each induction electrode and the reference electrode layer. According to the electric field detection device, the induction electrodes distributed on multiple layers are adopted, the induction electrodes and the reference electrodes are all of a strip shape, and the strip-shaped electrodes are small in size, thin, capable of being integrated inside a cap easily and good in concealment performance. Meanwhile, due to the adoption of the induction electrodes distributed on multiple layers, the intensity of an electric field can be detected, the electric field can further be detected at multiple angles in multiple directions, and the direction of the electric field can be judged.
Description
Technical field
The invention belongs to power domain, relate to a kind of electric field detector.
Background technology
Along with the fast development that national grid is built, transmission line of electricity more and more approaches the region of resident's activity, and the electromagnetic environment problem that power frequency electric field, direct current total electric field etc. causes more and more causes people's concern.Power frequency electric field is the main electromagnetic environment parameter of transmission line of alternation current and transformer station, and direct current total electric field is the main electromagnetic environment parameter of DC power transmission line.Need to detect to evaluate project of transmitting and converting electricity to electric field affects electromagnetic environment.
Simultaneously, for the safety of long-term work personnel's operation in high electric field environment, the generation that country has formulated strict rules and regulations and stops accident, when people is under fatigue state, often system and supervision have lost effect, so just need to have a kind of safety feature to avoid occurring this type of accident, but, the equipment exceeding standard for environment field intensity at present, both at home and abroad also seldom research.Operating personnel is in the environment of High voltage power frequence electric field, and especially, in the time climbing or approach high voltage alive equipment, staff can swarm into high-pressure area by mistake, if in the situation that litigant has little understanding to its residing situation, this just likely causes personal injury.Therefore, research has the electric field measuring apparatus of alarm function, to protection personnel's safety, and the safety coefficient of raising, the incidence of reduction accident is significant.
Current electric field measuring apparatus, in electrode design, use often the spheric electrode of large volume, volume is unfavorable for greatly carrying, although also have a kind of small and exquisite False Rate of device as wrist formula alarm so high, can not monitor the electric field situation of wearer's all directions.
Therefore, provide a kind of electrode volume little, the electric field detector that simultaneously can carry out comprehensive detection to electric field is around necessary.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of electric field detector, for solve prior art electrode volume very much not easy of integration, can not carry out multi-faceted electric field detection, problem that judgment accuracy is not high.
For achieving the above object and other relevant objects, the invention provides a kind of electric field detector, at least comprise:
Carrying body;
Be arranged at the reference electrode layer on described carrying body;
Be arranged on described carrying body and be positioned at least three layers of induction electrode layer of described reference electrode layer top; Described induction electrode layer comprises at least four equally distributed induction electrodes, and each induction electrode forms an independently electric field measurement loop with described reference electrode layer respectively.
Alternatively, described reference electrode layer comprises a reference electrode, and described reference electrode is annular strip.
Alternatively, described induction electrode is strip.
Alternatively, the semisphere that described carrying body is hollow or class semisphere, each induction electrode uniform ring of described induction electrode layer is located on described carrying body.
Alternatively, the material of described induction electrode is copper; The material of described reference electrode is copper.
Alternatively, each induction electrode equates for the equivalent capacity of described reference electrode.
Alternatively, in adjacent two layers induction electrode layer, the orientation of each induction electrode is corresponding.
Alternatively, described induction electrode layer comprises 5～16 induction electrodes.
Alternatively, described measuring circuit comprises the current-voltage conversion circuit being connected with described induction electrode and described reference electrode, the filtering and amplifying circuit being connected with described current-voltage conversion circuit and the signal acquisition circuit being connected with described filtering and amplifying circuit.
Alternatively, all measuring circuits share a signal acquisition circuit.
Alternatively, described carrying body is cap.
Alternatively, described carrying body is safety helmet.
Alternatively, described induction electrode and reference electrode are arranged at the inside surface of described cap.
Alternatively, described cap is double-decker, and described induction electrode and reference electrode are arranged in the interlayer of described cap.
As mentioned above, electric field detector of the present invention, there is following beneficial effect: electric field detector of the present invention adopts multilayer distributed induction electrode, and induction electrode and reference electrode be strip, than spheric electrode, strip electrode volume of the present invention is less, thin thickness, is easy to be integrated in cap body inside, and hidden performance is good, because cap body is sphere, therefore having taken into account spheric electrode can be to the advantage that around electric field intensity is monitored.Simultaneously because the present invention adopts multilayer distributed induction electrode, can carry out multi-angle, the detection of multidirectional electric field, as can judge electric field orientation be front, back, left, right, up before, upper rear, upper left, upper right, lower before, lower after, all directions such as bottom left, bottom right, realize wearer's comprehensive detection of electric field around, improve the accuracy of judgement.Electric field detector of the present invention not only can detect electric field intensity size, can also carry out multi-angle, the detection of multidirectional electric field, judges electric field orientation, and electrode design can be widely used in strong electric field environment it cheaply.
Brief description of the drawings
Fig. 1 is shown as the structural representation of electric field detector of the present invention.
Fig. 2 is shown as the cut-open view of structure shown in Fig. 1.
Fig. 3 is shown as the distribution plan of overlooking of reference electrode and induction electrode in electric field detector of the present invention.
Fig. 4 is shown as the circuit diagram of electric field detector of the present invention.
Element numbers explanation
1 carrying body
2 reference electrode layers
3,4,5 induction electrode layers
6 induction electrodes
7 reference electrodes
8 reference sources
9 current-voltage conversion circuits
10 filtering and amplifying circuits
11 signal acquisition circuits
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this instructions.The present invention can also be implemented or be applied by other different embodiment, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
Refer to Fig. 1 to Fig. 4.It should be noted that, the diagram providing in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size drafting while implementing according to reality, when its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
The invention provides a kind of electric field detector, refer to Fig. 1, be shown as the structural representation of this device, at least comprise:
Carrying body 1;
Be arranged at the reference electrode layer 2 on described carrying body 1;
Be arranged on described carrying body 1 and be positioned at least three layers of induction electrode layer of described reference electrode layer 2 tops: induction electrode layer 3, induction electrode layer 4, induction electrode layer 5;
Described induction electrode layer comprises at least four equally distributed induction electrodes, and each induction electrode forms an independently electric field measurement loop with described reference electrode layer 2 respectively.
In the present embodiment, described electric field detector, to comprise that three layers of induction electrode layer are as example, as shown in Figure 1, is followed successively by induction electrode layer 3, induction electrode layer 4 and induction electrode layer 5 from bottom to top.In other embodiments, described electric field detector also can comprise the induction electrode layer of other number, and as four layers, five layers, six layers etc., the number of plies is more, higher for the judgement precision in the concrete orientation of electric field.
Concrete, described induction electrode is strip.In the present embodiment, described induction electrode preferably adopts the Copper Foil of strip, and it has advantages of very light and thin, is easy to be integrated on described carrying body.And conducting electricity very well of copper product, cheap cost is applicable to extensive universal and production.Described reference electrode layer 2 comprises a reference electrode, and described reference electrode is annular strip, and the same Copper Foil of strip that preferably adopts of described reference electrode is made.
As example, semisphere or class semisphere that described carrying body 1 is hollow, each induction electrode uniform ring of described induction electrode layer is located on described carrying body 1.Semisphere or class semisphere that described carrying body 1 is hollow, be positioned on sphere described induction electrode and reference electrode, and can take into account spheric electrode can be to the advantage that around field intensity detects.Wherein, multiple induction electrode layers are positioned at the top of described carrying body 1, and described reference electrode layer is positioned at the bottom of described carrying body 1, preferably adopt identical distance between adjacent electrode layer.Refer to Fig. 2, be shown as the cut-open view of structure shown in Fig. 1, wherein, described reference electrode layer 2 is positioned at the bottom position of described carrying body 1.
In the present embodiment, every layer of induction electrode layer to be to comprise that four induction electrodes, as example, refer to Fig. 3, is shown as the distribution plan of overlooking of reference electrode and induction electrode in electric field detector of the present invention.As shown in the figure, in every layer of induction electrode layer, four induction electrodes are deployed in respectively the four direction all around of described carrying body, and uniform ring is located on described carrying body 1, and in adjacent two layers induction electrode layer, the orientation of each induction electrode is corresponding.In other embodiments, the induction electrode in every one deck induction electrode layer can be also other number, as comprises 5～16 induction electrodes, and the induction electrode in every one deck induction electrode layer is more, just higher for the judgement precision in electric field orientation.
Bar shaped induction electrode and bar shaped reference electrode are except having small and exquisite, the frivolous feature of volume, its search coverage is also large than common spheric electrode, as shown in Figure 3, in same layer induction electrode layer, between adjacent induction electrode except necessary interval, induction electrode length can be extended as far as possible, to expand investigative range.
Concrete, each induction electrode equates for the equivalent capacity of described reference electrode, makes each induction electrode consistent to the perception of electric field, reduces the asymmetric orientation judgement causing abnormal.In every one deck induction electrode, the size of each induction electrode is preferably equal.Can regulate the area of described induction electrode with respect to described reference electrode by the thickness of the Copper Foil of adjusting use, each induction electrode is equated for the equivalent capacity of described reference electrode.
Concrete, each induction electrode forms an independently electric field measurement loop with described reference electrode layer respectively.Refer to Fig. 4, be shown as the circuit diagram of electric field detector of the present invention in a specific embodiment, comprising 12 measuring circuits, 12 induction electrodes 6 in respectively corresponding three layers of induction electrode layer, these 12 induction electrodes 6 share a reference electrode 7, make all induction electrodes have common reference planes, reduce the impact that stray capacitance causes, wherein said reference electrode 7 is connected with a reference source 8.As shown in the figure, described measuring circuit comprises the current-voltage conversion circuit 9 being connected with described induction electrode 6 and described reference electrode 7, the filtering and amplifying circuit 10 being connected with described current-voltage conversion circuit 9 and the signal acquisition circuit 11 being connected with described filtering and amplifying circuit 10.All measuring circuits can share a signal acquisition circuit.
Concrete, described reference electrode and each induction electrode connect with corresponding filtering and amplifying circuit 10 the amplification filtration of carrying out signal respectively by described current-voltage conversion circuit 9, are then gathered by described signal acquisition circuit 11.Each induction electrode is responded to the intensity of electric field simultaneously, the local orientation that can obtain the source of signal according to the size of electric field.Concrete, by judging that the size of field intensity realizes concrete direction judgement, the direction that field intensity is the strongest is exactly the direction source of concrete electric field.For the situation of three layers of induction electrode layer in the present embodiment, not only can judge that direction of an electric field is front, rear, left and right, four direction, can also further judge that it is positioned at top, middle or below.
The electric field strength that measures for adjacent two induction electrodes equates or when close, can judge that direction of an electric field is the orientation between these two induction electrodes.
As example, described carrying body 1 is cap, further, can be safety helmet.In electric field detector of the present invention, induction electrode and reference electrode are strip, very frivolous, and described induction electrode and reference electrode can be arranged at the inside surface of described cap, make it have disguise.Described cap can also be double-decker, and described induction electrode and reference electrode can be arranged in the interlayer of described cap, further improves disguised.
The present invention not only can be used as the detector of field electric field detecting, can also be as work about electric power personnel's the instrument of wearing, and protection staff's personal safety.
The principle of work of electric field detector of the present invention is as follows: the AC current frequency that carry transmission line of alternation current is 50Hz, will produce so the power frequency electric field of 50Hz in transmission line of electricity space.On overall, apart from transmission line of electricity, closely electric field intensity is higher, along with the increase of distance, electric field intensity presents the trend of successively decreasing, whether whether electric field intensity is directly proportional to voltage, therefore can utilize the electric field signal decision operation person in space in security regulations distance range, to operate, safety.
Described carrying body is taking cap as example, when cap is in the electric field environment of high pressure, induction electrode on cap in each orientation is all detecting the electric field distributing around it, easily be subject to the impact of shelter with respect to traditional single electrode, cause the error rate of electric field intensity judgement high, multilayer distributed induction electrode of the present invention can be responded to wearer's electric field intensity in upper and lower multiple orientation all around, can be because the be blocked bypass that causes of certain induction electrode affects the accuracy of measurement data.This redundancy design method, can improve staff's personal safety greatly, reduces rate of false alarm.
In sum, electric field detector of the present invention adopts multilayer distributed induction electrode, and induction electrode and reference electrode are strip, than spheric electrode, strip electrode volume of the present invention is less, thin thickness, be easy to be integrated in cap body inside, hidden performance is good, and because cap body is sphere, therefore having taken into account spheric electrode can be to the advantage that around electric field intensity is monitored.Simultaneously because the present invention adopts multilayer distributed induction electrode, can carry out multi-angle, the detection of multidirectional electric field, as can judge electric field orientation be front, back, left, right, up before, upper rear, upper left, upper right, lower before, lower after, all directions such as bottom left, bottom right, realize wearer's comprehensive detection of electric field around, improve the accuracy of judgement.Electric field detector of the present invention not only can detect electric field intensity size, can also carry out multi-angle, the detection of multidirectional electric field, judges electric field orientation, and electrode design can be widely used in strong electric field environment it cheaply.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (14)
1. an electric field detector, is characterized in that, at least comprises:
Carrying body;
Be arranged at the reference electrode layer on described carrying body;
Be arranged on described carrying body and be positioned at least three layers of induction electrode layer of described reference electrode layer top; Described induction electrode layer comprises at least four equally distributed induction electrodes, and each induction electrode forms an independently electric field measurement loop with described reference electrode layer respectively.
2. electric field detector according to claim 1, is characterized in that: described reference electrode layer comprises a reference electrode, and described reference electrode is annular strip.
3. electric field detector according to claim 1, is characterized in that: described induction electrode is strip.
4. electric field detector according to claim 1, is characterized in that: the semisphere that described carrying body is hollow or class semisphere, each induction electrode uniform ring of described induction electrode layer is located on described carrying body.
5. electric field detector according to claim 1, is characterized in that: the material of described induction electrode is copper; The material of described reference electrode is copper.
6. electric field detector according to claim 1, is characterized in that: each induction electrode equates for the equivalent capacity of described reference electrode.
7. electric field detector according to claim 1, is characterized in that: in adjacent two layers induction electrode layer, the orientation of each induction electrode is corresponding.
8. electric field detector according to claim 1, is characterized in that: described induction electrode layer comprises 5～16 induction electrodes.
9. electric field detector according to claim 1, is characterized in that: described measuring circuit comprises the current-voltage conversion circuit being connected with described induction electrode and described reference electrode, the filtering and amplifying circuit being connected with described current-voltage conversion circuit and the signal acquisition circuit being connected with described filtering and amplifying circuit.
10. electric field detector according to claim 9, is characterized in that: all measuring circuits share a signal acquisition circuit.
11. electric field detectors according to claim 1, is characterized in that: described carrying body is cap.
12. electric field detectors according to claim 11, is characterized in that: described carrying body is safety helmet.
13. electric field detectors according to claim 11, is characterized in that: described induction electrode and reference electrode are arranged at the inside surface of described cap.
14. electric field detectors according to claim 11, is characterized in that: described cap is double-decker, and described induction electrode and reference electrode are arranged in the interlayer of described cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410197801.1A CN103954849A (en) | 2014-05-12 | 2014-05-12 | Electric field detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410197801.1A CN103954849A (en) | 2014-05-12 | 2014-05-12 | Electric field detection device |
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| CN103954849A true CN103954849A (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410197801.1A Pending CN103954849A (en) | 2014-05-12 | 2014-05-12 | Electric field detection device |
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| CN (1) | CN103954849A (en) |
Cited By (6)
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| CN106723582A (en) * | 2016-12-13 | 2017-05-31 | 北京智芯微电子科技有限公司 | A kind of intelligent safety helmet shown with Electric Field Distribution |
| RU175577U1 (en) * | 2017-07-18 | 2017-12-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" | Electric field sensor |
| CN108872725A (en) * | 2018-05-10 | 2018-11-23 | 北京卫星环境工程研究所 | Purposes of the graphene in Satellite surface potential measurement |
| CN109324235A (en) * | 2018-09-29 | 2019-02-12 | 国网山西省电力公司太原供电公司 | A kind of sensor device of cable connector electric field detection |
| CN110927470A (en) * | 2019-12-05 | 2020-03-27 | 昆明品启科技有限公司 | Low-frequency electric field positioning system and method |
| RU211936U1 (en) * | 2022-02-02 | 2022-06-29 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный автомобильно-дорожный университет" (СибАДИ) | Double sensor for measuring electric field strength with separate sensing elements |
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Application publication date: 20140730 |
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