CN2281541Y - Downward electric field instrument - Google Patents
Downward electric field instrument Download PDFInfo
- Publication number
- CN2281541Y CN2281541Y CN 96250898 CN96250898U CN2281541Y CN 2281541 Y CN2281541 Y CN 2281541Y CN 96250898 CN96250898 CN 96250898 CN 96250898 U CN96250898 U CN 96250898U CN 2281541 Y CN2281541 Y CN 2281541Y
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- CN
- China
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- stator
- electric field
- sector
- moving plate
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an inverted electric field instrument. A reference positioning seat is connected with a housing, and both the upper and the lower sides of the positioning seat are respectively connected with a motor frame and a static sheet; a moving sheet connected with the motor shaft is installed at a position over against the static sheet in a parallel mode, and a simple identifying plate connected with a lower cover is installed at a position over against the moving sheet in a parallel mode; in addition, a small blade similar and parallel to the moving sheet is installed on the motor shaft, the small blade is arranged in the notch of an electric switch, and electric signals output by a light switch and electric signals output by the signal leading wires of an electric brush on the static sheet are together connected to an electric field measuring and signal processing circuit. The utility model is convenient for the work in extreme climates with thunder storms in the field and has the advantages of high distinguishing rate, stable and flexible operation, and low electric power consumption.
Description
The utility model relates to a kind of inversion type electric field instrument.
The powerful conducting lightning currents that thunder and lightning produces, the red-hot high temperature and the strong electromagnetic radiation equivalence reply development of the national economy cause many harm, as cause forest fire, cause the storage tank farm blast, cause aircraft accident, destroy buildings and cause people and animals' injures and deaths etc.Therefore lightening activity is paid close attention to by people always and is paid attention to for many years.Along with China's opening, international space flight market has been squeezed in rocket launching, and the test frequency is increased.For guaranteeing the safety of thunderstorm season before rocket filling emission, launching centre meteorological department sets up the lightning monitoring early warning system in the place, and wherein setting up surface air electric field detecting net is an important step of this system.At present, measure the method for atmospheric electric field, mainly contain two classes.First kind method is to survey potential differentiation, promptly measures the potential difference (PD) of point-to-point transmission on the differing heights, and earth surface is more normally generally measured with the level balancer of certain form; As water droplet evener, radioactive ray evener and point discharge etc.This class measuring method, because potential balance is slow, required Measuring Time is long, is subject to the air turbulence influence simultaneously, viscosity is also low, seldom uses now.Second class methods are to measure constraint, promptly measure on part of earth surface or the bound charge on the grounding body; Measure bound charge and generally adopt dynamic method.As China Shanghai Communications University, space physics in one's power plateau, Chinese Academy of Sciences Lanzhou atmospheric physics just developed the electric field instrument of measuring electric field as far back as the 60 to 70's, but the shortcoming of these instruments be the instrument inductive head up, instrument work is bad under torrential rain and open-air harsh climate condition.
The purpose of this utility model is in order to provide a kind of induction stator to be convenient to the operation of open-air thunderstorm weather extremes down, and can avoid sensitive stable, the inversion type electric field instrument that power consumption is little of electric field distortion, instrumental resolution height, running.
The purpose of this utility model can realize by following measure:
A kind of inversion type electric field instrument contains housing, motor, brush, stator, moving plate, signal lead and wiring board etc.; On housing, be associated with the benchmark positioning seat, be associated with motor frame and stator respectively in the upper and lower both sides of positioning seat; With the parallel moving plate that is associated on the motor shaft that is equipped with over against the position of stator; With the parallel simple Identification plate that is associated in lower cover that is equipped with over against the position of moving plate; Also be equipped with on motor shaft and the similar parallel vanelets of moving plate in addition, vanelets places in the breach of optoelectronic switch, is inserted together in the electric field measurement signal processing circuit by the electric signal of optoelectronic switch output and the electric signal of the output of the signal lead on the stator.
The purpose of this utility model also can realize by following measure:
A kind of stator of inversion type electric field instrument by coaxial be installed in same surface level and mutually the sector of symmetry form the shape of each sector, equal and opposite in direction, and equate with fan-shaped gap between two blades; In addition at the same surface level of stator periphery is housed and links, the centre is provided with the earth balance plate of the fan-shaped vacancy that can embed the stator sector; The periphery that is shaped as of described moving plate links to each other, and the centre has the thin slice with the symmetrical fan-shaped vacancy of the sector number of stator and shape area etc.; The gap, the left and right sides of each sector of described stator and each fan-shaped vacancy of earth balance plate is the 3-5 millimeter.
The utility model has following advantage compared to existing technology:
1, stator of the present utility model is located under the motor frame, and its top seal, and the bottom is provided with lower cover, thereby even electric field instrument also can normally be used under other open-air harsh climate conditions such as torrential rain.
2, the utility model is coaxially installed with the vanelets similar to stator in the rotating shaft of moving plate, and vanelets places the breach of optoelectronic switch, when vanelets rotates and pass through the optoelectronic switch breach, produce reference synchronizing pulse, thereby make synchronizing pulse form circuit reduction, and switching characteristic is good, easy to adjust.
3, the utility model also is provided with a periphery at the same surface level of stator and links, the earth balance plate of middle scalloping, and this not only can guarantee the installation accuracy of each sector of stator at same surface level, can avoid electric field to distort again.
4, the utility model under cover and also be associated with the simple Identification plate, can make things convenient for user scene calibration instrument quickly rapidly.
5, all other parts of the present utility model all are arranged on the interior benchmark positioning seat of casing, thereby can guarantee the installation accuracy of instrument, make apparatus working sensitive stable, and power consumption is little.
Concrete structure of the present utility model is provided by the following drawings
Fig. 1 is a structural representation of the present utility model
1-motor, 2-motor frame, 3-vanelets, 4-brush, 5-stator, 6-moving plate
7-simple Identification plate, 8-signal lead, 9-optoelectronic switch, 10-wiring board, 11-housing
12-lower cover, 13-benchmark positioning seat
Fig. 2 is the mounting structure synoptic diagram of the utility model stator and earth balance plate
14-earth balance plate
Fig. 3 is an electric field measurement signal processing circuit block diagram of the present utility model
The utility model is also incited somebody to action in conjunction with the accompanying drawings, and 1,2,3 embodiment are described in further detail:
With reference to Fig. 1, a kind of inversion type electric field instrument, contain housing 11, motor 1, brush 4, stator 5, moving plate 6, signal lead 8 and wiring board 10 etc.; On housing 11, be associated with benchmark positioning seat 13, be associated with motor frame 2 and stator 5 respectively in the upper and lower both sides of positioning seat 13, stator 5 is made up of the coaxial sector that is installed in same surface level and mutual symmetry, the shape of each sector, equal and opposite in direction, and equate with fan-shaped gap between two blades; With reference to Fig. 2, at the same surface level of stator 5 periphery to be housed and to link, the centre is provided with the earth balance plate 14 of the fan-shaped vacancy that can embed stator 5 sectors; The gap, the left and right sides of each sector of stator 5 and each fan-shaped vacancy of earth balance plate 14 is 4 millimeters; With stator 5 parallel the moving plate 6 that is associated on 1 in the motor is being housed over against the position; Be provided with brush 4 on 1 in motor, brush 4 can guarantee that moving plate 6 ground connection are good; The periphery that is shaped as of moving plate 6 links to each other, and the centre has the thin slice with the symmetrical fan-shaped vacancy of the sector number of stator 5 and shape area etc.; With the parallel simple Identification plate 7 that is associated in lower cover 12 that is equipped with over against the position of moving plate 6; On 1 in motor, also be equipped with and moving plate 6 similar parallel vanelets 3 in addition, vanelets 3 places in the breach of optoelectronic switch 9, is inserted together in the electric field measurement signal processing circuit by the electric signal of optoelectronic switch 9 outputs and the electric signal of 8 outputs of the signal lead on the stator 5.With reference to Fig. 3, described electric field measurement signal processing circuit forms circuit, phase-sensitive detection circuit, low-pass filter circuit, level shift circuit by pre-amplification circuit, synchronizing signal to be formed, and each built-up circuit of this treatment circuit all adopts known circuits.
Claims (4)
1, a kind of inversion type electric field instrument contains housing (1), motor (1), brush (4), stator (5), moving plate (6), signal lead (8) and wiring board (10) etc.; It is characterized in that on housing (11), being associated with benchmark positioning seat (13), be associated with motor frame (2) and stator (5) in the upper and lower both sides of positioning seat (13) respectively; With the parallel moving plate (6) that is associated on motor (1) axle that is equipped with over against the position of stator (5); With the parallel simple Identification plate (7) that is associated in lower cover (12) that is equipped with over against the position of moving plate (6); On motor (1) axle, also be equipped with and the similar parallel vanelets of moving plate (6) (3) in addition, vanelets (3) places in the breach of optoelectronic switch (9), is inserted together in the electric field measurement signal processing circuit by the electric signal of optoelectronic switch (9) output and the electric signal of the output of the signal lead (8) on the stator (5).
2, inversion type electric field instrument as claimed in claim 1, it is characterized in that stator (5) by coaxial be installed in same surface level and mutually the sector of symmetry form the shape of each sector, equal and opposite in direction, and equate with fan-shaped gap between two blades; In addition at the same surface level of stator (5) periphery is housed and links, the centre is provided with the earth balance plate (14) of the fan-shaped vacancy that can embed stator (5) sector.
3, inversion type electric field instrument as claimed in claim 1 is characterized in that the periphery that is shaped as of moving plate (6) links to each other, and the centre has the thin slice with the symmetrical fan-shaped vacancy of the sector number of stator (5) and shape area etc.
4, inversion type electric field instrument as claimed in claim 2 is characterized in that the gap, the left and right sides of each fan-shaped vacancy of each sector of stator (5) and earth balance plate (14) is the 3-5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96250898 CN2281541Y (en) | 1996-12-24 | 1996-12-24 | Downward electric field instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96250898 CN2281541Y (en) | 1996-12-24 | 1996-12-24 | Downward electric field instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2281541Y true CN2281541Y (en) | 1998-05-13 |
Family
ID=33921541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96250898 Expired - Fee Related CN2281541Y (en) | 1996-12-24 | 1996-12-24 | Downward electric field instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2281541Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390549C (en) * | 2003-10-15 | 2008-05-28 | 财团法人工业技术研究院 | Electromagnetic field sensing element and its apparatus |
| CN101713797B (en) * | 2009-11-23 | 2011-06-29 | 山东农业大学 | Non-contact insect charge-measuring system |
| CN101710186B (en) * | 2009-11-23 | 2012-02-01 | 山东农业大学 | Insect detecting system based on insect charge measurement |
| CN101576590B (en) * | 2009-04-03 | 2012-10-24 | 中国人民解放军理工大学 | Miniature electric field measuring apparatus |
| WO2014101638A1 (en) * | 2012-12-31 | 2014-07-03 | 国网电力科学研究院武汉南瑞有限责任公司 | Inverted-type electric field instrument having low power consumption and a constant speed |
| CN105676008A (en) * | 2016-01-15 | 2016-06-15 | 中国电力科学研究院 | Digital electric field sensor |
-
1996
- 1996-12-24 CN CN 96250898 patent/CN2281541Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390549C (en) * | 2003-10-15 | 2008-05-28 | 财团法人工业技术研究院 | Electromagnetic field sensing element and its apparatus |
| CN101576590B (en) * | 2009-04-03 | 2012-10-24 | 中国人民解放军理工大学 | Miniature electric field measuring apparatus |
| CN101713797B (en) * | 2009-11-23 | 2011-06-29 | 山东农业大学 | Non-contact insect charge-measuring system |
| CN101710186B (en) * | 2009-11-23 | 2012-02-01 | 山东农业大学 | Insect detecting system based on insect charge measurement |
| WO2014101638A1 (en) * | 2012-12-31 | 2014-07-03 | 国网电力科学研究院武汉南瑞有限责任公司 | Inverted-type electric field instrument having low power consumption and a constant speed |
| CN105676008A (en) * | 2016-01-15 | 2016-06-15 | 中国电力科学研究院 | Digital electric field sensor |
| CN105676008B (en) * | 2016-01-15 | 2020-04-14 | 中国电力科学研究院 | Digital electric field sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |