CN207424113U - A kind of electrostatic field vector sensor - Google Patents
A kind of electrostatic field vector sensor Download PDFInfo
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- CN207424113U CN207424113U CN201721087756.XU CN201721087756U CN207424113U CN 207424113 U CN207424113 U CN 207424113U CN 201721087756 U CN201721087756 U CN 201721087756U CN 207424113 U CN207424113 U CN 207424113U
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Abstract
The utility model is related to a kind of electrostatic field vector sensors, including motor, cylindrical electrode tip holder, in the cylindric metallic shield of lower ending opening and three groups of electrodes of orthogonal space, three groups of electrodes are respectively X electrode, Y electrode and Z electrodes, the motor is located inside electrode tip holder, the metallic shield is located at outside electrode tip holder, and it is coaxially disposed with electrode tip holder, the axle portion of metallic shield is each attached on the output shaft of motor, the axle portion of electrode tip holder and the output shaft of motor are rotatablely connected, X electrode and Y electrode are fixed on the side of electrode tip holder, Z electrodes are fixed on the top of electrode tip holder, void region is equipped on the top and side of metallic shield, the sensor of the utility model can accurately measurement space electrostatic field overall strength and direction of an electric field.
Description
Technical field
The utility model is related to a kind of electrostatic field vector sensors, belong to electrostatic field measuring instrument field.
Background technology
Electrostatic field sensor is widely used, in Lightning Warning, atmospheric electric field detection, industrial staticelectricity protection and power communication etc.
Field plays an important roll.Electrostatic field measurement main method theoretically divides, and can be divided into based on electricity and based on optical
Two kinds of measuring methods, the method based on electricity are based on electrostatic induction principle, and metal induces charge inducing, shape in electrostatic field
Into pulse current, in order to continuously measure, electrostatic field is modulated using field mill formula structure, measuring principle is simply bright
, apparatus structure is also uncomplicated, strong antijamming capability, is suitble to measurement direct current, low frequency electric field, but electric field instrument installation environment, to it
Measured value is affected.Ke Erfa can be theoretically divided into based on optical method, steep Ke Ersifa and electrostriction effect
Method utilized under electric field action, and the change in physical of sensor material measures electrostatic field, and this method is to being detected letter
It is number noiseless, and strong antijamming capability, but material processing difficulties, optical system is complicated, easily by influences such as temperature.There is also
Some machineries, method for being combined of optics, such as what Huang loyalty in 2013 et al. propose the weak electrostatic field measurement based on torsion balance method, profit
The deflection of minute angle is generated with torsion balance device, recycles the amplification of optical flat mirror, minute angle deflection is become into horizontal displacement,
The measurement of weak electrostatic field is realized by comparing method, but the device volume is larger, it is more demanding to measuring environment.
It is the measurement of electrostatic field intensity above, does not involve direction of an electric field measurement, and the measurement of direction of an electric field is to charged
Body orientation plays an important role.The vector that 2005 Nian Bi armies build et al. in the electrostatic field for having studied air contact generation is visited
It surveys on the basis of theory, it is proposed that is applied on a kind of fuse is capable of the vector detection side of air contact azimuth-range
Method.T.Tantisattayakul in 2006 has developed the complex electrical field instrument that can measure vertical electric field and horizontal component of electric field simultaneously, water
Ordinary telegram field measurement can be used for judging thunder cloud orientation.But there are certain limitation, standards on measurement direction of an electric field for the above method
True property is not high.
Utility model content
In order to solve the problems in the existing technology the utility model, provides a kind of measurable three dimensions electrostatic field arrow
Amount, obtains the vector sensor of the real electric field strength size of measurement point and direction of an electric field.
In order to achieve the above object, the utility model proposes technical solution be：A kind of electrostatic field vector sensor, including
Motor, cylindrical electrode tip holder, in the cylindric metallic shield of lower ending opening and three groups of electrodes of orthogonal space, it is described
Three groups of electrodes are respectively X electrode, Y electrode and Z electrodes, and the motor is located inside electrode tip holder, and the metallic shield is located at electricity
It outside electrode seat, and is coaxially disposed with electrode tip holder, the axle portion of metallic shield is each attached on the output shaft of motor, the axis of electrode tip holder
The output shaft of portion and motor is rotatablely connected, and X electrode and Y electrode are fixed on the side of electrode tip holder, and Z electrodes are fixed on electrode tip holder
Top is equipped with void region on the top and side of metallic shield.
Above-mentioned technical proposal is further designed to：Optoelectronic switch and Synchronous Leaf are further included, Z electrodes pass through connecting pole
It is fixed at the top of electrode tip holder, photoelectricity switch is fixed on Z electrode bases, and Synchronous Leaf is fixed on the output shaft of motor, and is located at
Between electrode tip holder and Z electrodes.
The Synchronous Leaf is equipped with void region, and surrounding is folded upward at forming side.
The Z electrodes are integrally rounded, are divided into two groups in fan-shaped electrode plate, and every group of electrode plate is equipped with several, and two
Group electrode plate is spaced apart, and the place of contacting with each other insulate.
There are four the two arrays of electrodes plate of Z electrodes is all provided with, the central angle of each electrode plate is 45 °.
Void region is the sector that four central angles are 45 ° at the top of the metallic shield, and four sector regions are in metal
It is uniformly distributed at the top of shielding case around the center of circle；Metallic shield side void region is the cylindrical surface that four angles are 45 °, four
Cylindrical surface region is uniformly distributed in metallic shield side around axle portion.
The shape of the Synchronous Leaf void region is identical with void region shape at the top of metallic shield.
The X electrode is equipped with two pieces with Y electrode, and X electrode and Y electrode are spaced apart in electrode tip holder side, two pieces of X electrodes
The line at the line at center and two pieces of Y electrode centers be with it is in same level and orthogonal.
The utility model is by measuring the three orthogonal electric field component E of observation pointX、EYAnd EZ, it is total to calculate space static electricity field
Intensity and direction of an electric field.
The beneficial effects of the utility model are：
Existing electrostatic field test equipment can only measure comprehensive effect of the electrostatic field on some direction, it is impossible to differentiate electricity
The direction of field, can not calculate total electric field size.The electrostatic field vector sensor of the utility model is by measuring electric field three-dimensional
Quadrature component synthesizes total electric field and calculates direction of an electric field, can measure local real electric field level, and pass through electric field side
To the differentiation and the search of charge for carrying out charge orientation.
Description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment.
Fig. 2 is that metallic shield structure diagram is carried out in Fig. 1.
Reference numeral in above-mentioned attached drawing is：1- metallic shields, 2- electrode tip holders, 3-X electrodes, 4-Y electrodes, 5-Z electrodes,
6- motor output shafts, 7- connecting poles, 8- Synchronous Leafs, 9- optoelectronic switches, 10- motors.
Specific embodiment
Below in conjunction with the accompanying drawings and the utility model is described in detail in specific embodiment.
Embodiment
The electrostatic field vector three-dimension sensor of the present embodiment on cylindric electrode tip holder 2 as shown in Figure 1, arrange three groups
The metal induction electrode of orthogonal direction, wherein, Z electrodes 5 are vertical direction electrode, whole rounded, are divided into two groups in sector
Electrode plate, there are four every group of electrode plate is all provided in the present embodiment, two arrays of electrodes plate is spaced apart, and the place of contacting with each other insulate, Z electricity
Pole 5 is fixed on the top of electrode tip holder 2 by circular connecting pole 7, into horizontal positioned during work, is responsible for the electrostatic of detection vertical direction
Electric field；The side of electrode tip holder 2 is arranged symmetrically horizontal component of electric field detection electrode, X electrode 3 and Y electrode 4, respectively detects in horizontal plane
The detection electrode of orthogonal direction static electric field, X electrode 3 are equipped with two pieces with Y electrode 4, and X electrode 3 and Y electrode 4 are in electrode tip holder 2
Side is spaced apart, and the line at two pieces of X electrode centers and the line at two pieces of Y electrode centers are with hanging down in same level and mutually
Directly.
The cylindric metallic shield 1 in lower ending opening, concrete shape are covered in electrode tip holder 2 and three groups of electrode exteriors
As shown in Figure 2, top and side are equipped with void region, and hollow out aspect ratio is 1：1, i.e. four central angles of the symmetrical hollow out in top
Fan-shaped for 45 degree, four sector regions are uniformly distributed at the top of metallic shield around the center of circle, side four circumference of symmetrical hollow out
Upper angle is 45 degree of cylindrical surfaces, and four cylindrical surfaces region is uniformly distributed in metallic shield side around axle portion, hollow out shape with
Three groups of distribution of electrodes are corresponding, and 1 upper surface of metallic shield and side lower edge avoid generating when rotated all with retainer ring
Vibration or deformation.
Motor 10 is installed, metallic shield 1 and electrode tip holder 2 are coaxially disposed, the axis of metallic shield 1 inside electrode tip holder 2
Portion is fixedly mounted on the output shaft 6 of motor, and metallic shield 1 all shrouds electrode X, Y, Z inside it, is driven and shielded by motor
It covers metallic shield 1 and rotates and electrostatic field is modulated, to carry out the continuous measurement of electrostatic field.
The electrostatic field vector sensor of the present embodiment is additionally provided with optoelectronic switch 9 and Synchronous Leaf 8, and photoelectricity switch 9 is fixed on Z
5 bottom of electrode, Synchronous Leaf 8 are fixed on the output shaft of motor, and between electrode tip holder 2 and Z electrodes 5.
Optoelectronic switch 9 is mounted on the reverse side of Z electrodes 3, and Synchronous Leaf 8 is also mounted on the output shaft of motor, Synchronous Leaf 8
Void region is equipped with, the shape of void region is identical with void region shape at the top of metallic shield, and surrounding is folded upward at
Side is formed, without retainer ring and metallic shield synchronous rotary, blade metallic portion cutting optoelectronic switch light on Synchronous Leaf 8
Road, hollow-out part do not block photoswitc light path, and Synchronous Leaf 8 is synchronous with Electric Field Modulated signal so as to generate in rotary course
With the square-wave signal of phase, for the phase sensitive detection of modulated electric fields.
The electrode measurement of three quadrature arrangements exports three electric field measurement data, is reconstructed by electric field, restores space electricity
Field three quadrature components Ex, Ey, Ez.Calculate space static electricity field overall strength and direction of an electric field.
Wherein, total electric field intensity is represented by formula 1, and direction of an electric field is represented with horizontal direction angle and pitch angle, with the earth
Plane is horizontal reference plane, and pitch angle and horizontal angle can be expressed as formula 2.
(1)
(2)
EXAnd EYIt is two electrostatic fields orthogonal in horizontal plane, EZFor the vertically electrostatic field component on ground greatly, from formula 1,
Measure electric field three-dimensional orthogonal component, you can synthesize total electric field intensity with formula 1；From formula 2, ground electric field is measured
2 orthogonal horizontal components, it may be determined that the horizontal azimuth of space electric field, the electric field three-dimensional component measured can determine sky
Between electric field pitch angle, the direction of electric field intensity is determined by the two angles, so as to be finally completed the measurement of electric field intensity.
The electrostatic field vector sensor of the utility model is not limited to the various embodiments described above, all to be obtained using equivalent substitution mode
To technical solution all fall within the requires of the utility model protection in the range of.
Claims (8)
1. a kind of electrostatic field vector sensor, it is characterised in that：Including motor, cylindrical electrode tip holder, in lower ending opening
Cylindric metallic shield and three groups of electrodes of orthogonal space, three groups of electrodes are respectively X electrode, Y electrode and Z electrodes,
The motor is located inside electrode tip holder, and the metallic shield is located at outside electrode tip holder, and is coaxially disposed with electrode tip holder, metal screen
The axle portion for covering cover is each attached on the output shaft of motor, and the axle portion of electrode tip holder and the output shaft of motor are rotatablely connected, X electrode and Y
Electrode is fixed on the side of electrode tip holder, and Z electrodes are fixed on the top of electrode tip holder, are all provided on the top and side of metallic shield
There is void region.
2. electrostatic field vector sensor according to claim 1, it is characterised in that：Further include optoelectronic switch and Synchronous Leaf, Z
Electrode is fixed on by connecting pole at the top of electrode tip holder, and photoelectricity switch is fixed on Z electrode bases, and Synchronous Leaf is fixed on the defeated of motor
On shaft, and between electrode tip holder and Z electrodes.
3. electrostatic field vector sensor according to claim 2, it is characterised in that：The Synchronous Leaf is equipped with vacancy section
Domain, and surrounding is folded upward at forming side.
4. electrostatic field vector sensor according to claim 3, it is characterised in that：The Z electrodes are integrally rounded, are divided into two
Group is equipped with several in fan-shaped electrode plate, every group of electrode plate, and two arrays of electrodes plate is spaced apart, and the place of contacting with each other insulate.
5. electrostatic field vector sensor according to claim 4, it is characterised in that：The two arrays of electrodes plate of Z electrodes is equipped with four
A, the central angle of each electrode plate is 45 °.
6. electrostatic field vector sensor according to claim 5, it is characterised in that：Void region at the top of the metallic shield
The sector for being 45 ° for four central angles, four sector regions are uniformly distributed at the top of metallic shield around the center of circle；Metallic shield
Cover side void region is the cylindrical surface that four angles are 45 °, and four cylindrical surfaces region surrounds axle portion in metallic shield side
It is uniformly distributed.
7. electrostatic field vector sensor according to claim 6, it is characterised in that：The shape of the Synchronous Leaf void region
It is identical with void region shape at the top of metallic shield.
8. electrostatic field vector sensor according to claim 7, it is characterised in that：The X electrode is equipped with two with Y electrode
Block, X electrode and Y electrode are spaced apart in electrode tip holder side, the line at two pieces of X electrode centers and the line at two pieces of Y electrode centers
For with it is in same level and orthogonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721087756.XU CN207424113U (en) | 2017-08-29 | 2017-08-29 | A kind of electrostatic field vector sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721087756.XU CN207424113U (en) | 2017-08-29 | 2017-08-29 | A kind of electrostatic field vector sensor |
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| CN207424113U true CN207424113U (en) | 2018-05-29 |
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| CN201721087756.XU Expired - Fee Related CN207424113U (en) | 2017-08-29 | 2017-08-29 | A kind of electrostatic field vector sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112379181A (en) * | 2020-11-11 | 2021-02-19 | 广东电科院能源技术有限责任公司 | Shaft type space electric field measuring device |
| CN115032580A (en) * | 2022-08-12 | 2022-09-09 | 武汉普赛斯仪表有限公司 | Calibration test fixture and system of current sensor |
| CN117214552A (en) * | 2023-09-22 | 2023-12-12 | 中国科学院长春光学精密机械与物理研究所 | Conductor surface potential measuring method based on periodic variation of torsion balance |
-
2017
- 2017-08-29 CN CN201721087756.XU patent/CN207424113U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112379181A (en) * | 2020-11-11 | 2021-02-19 | 广东电科院能源技术有限责任公司 | Shaft type space electric field measuring device |
| CN112379181B (en) * | 2020-11-11 | 2024-05-28 | 南方电网电力科技股份有限公司 | Shaft type space electric field measuring device |
| CN115032580A (en) * | 2022-08-12 | 2022-09-09 | 武汉普赛斯仪表有限公司 | Calibration test fixture and system of current sensor |
| CN117214552A (en) * | 2023-09-22 | 2023-12-12 | 中国科学院长春光学精密机械与物理研究所 | Conductor surface potential measuring method based on periodic variation of torsion balance |
| CN117214552B (en) * | 2023-09-22 | 2024-03-22 | 中国科学院长春光学精密机械与物理研究所 | Conductor surface potential measuring method based on periodic variation of torsion balance |
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Granted publication date: 20180529 Termination date: 20200829 |