CN201637786U - Detecting device for atmosphere electric field - Google Patents
Detecting device for atmosphere electric field Download PDFInfo
- Publication number
- CN201637786U CN201637786U CN2010201106763U CN201020110676U CN201637786U CN 201637786 U CN201637786 U CN 201637786U CN 2010201106763 U CN2010201106763 U CN 2010201106763U CN 201020110676 U CN201020110676 U CN 201020110676U CN 201637786 U CN201637786 U CN 201637786U
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Abstract
The utility model relates to a detecting device for atmosphere electric field and a detecting circuit. The detecting device for the atmosphere electric field comprises an induction plate and a grounding plate, wherein the grounding plate is U-shaped; the U-shaped opening of the grounding plate is provided with a shielding plate; the induction plate is arranged in a U-shaped trough between the shielding plate and the grounding plate; the grounding plate is electrically connected with the induction plate by a steady-state capacitor; the detecting device also comprises a switch circuit which can change the working modes; the switch circuit is electrically connected with the induction plate; and the switch circuit is also connected with a collecting and controlling device. The detecting device has the advantages of simple structure and convenient use.
Description
Technical field
The utility model relates to a kind of atmospheric electric field pick-up unit and testing circuit.
Background technology
The atmospheric electric field monitoring is playing an important role aspect thunder and lightning early warning, the space environment monitoring, and particularly the lightning monitoring warning aspect is the unique instrument that can accurately monitor generation, development and the generation overall process of thunder and lightning.Atmospheric electric field monitoring in tourist attractions, industries such as airport, transformer station, integrated mill have wide application prospect, can be before thunderbolt takes place 10-20 minute accurate issue early warning information, the prompting related personnel takes corresponding safeguard procedures.
At present both at home and abroad atmospheric electric field equipment mainly is divided into two kinds of mechanical type and on-mechanical formulas.Mechanical type mainly comprises abrasive disk type and double-ball type, and the former precision is the highest, and structure is also simple relatively, with low cost.But its shortcoming is because the existence of physical construction, has influenced the serviceable life of equipment, and it is fixed just need to return emblem mark in general 1 year, just needs the replacing mechanical part, and is not suitable for the construction of arranging net on a large scale in 2 years.The on-mechanical formula mainly is the capacitance-type vibration formula, has the people to propose the beginning of the eighties in last century in the U.S., can not reach requirement but its shortcoming is a precision, and owing to drive that general what adopt is Electromagnetic Drive, thereby unavoidably introduced interference.
Summary of the invention
The purpose of this utility model is to avoid the deficiencies in the prior art that a kind of atmospheric electric field pick-up unit and testing circuit are provided, thereby efficiently solves the defective that exists in the prior art.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of atmospheric electric field monitoring device, comprise tablet, ground plate, described ground plate takes the shape of the letter U, U-shaped opening part at ground plate is provided with barricade, is provided with tablet in the U-lag between barricade and ground plate, and described ground plate is electrically connected with tablet by stable state electric capacity;
The on-off circuit that also comprises the conversion mode of operation, described on-off circuit is electrically connected with described tablet, and described on-off circuit also with acquisition control device is connected.
Further, described on-off circuit and acquisition control device all are arranged on the tablet.
Further, described control device comprises the single-chip microcomputer that is used to control, and the output terminal of single-chip microcomputer is connected with the input end of Acquisition Circuit; The output terminal of single-chip microcomputer also is electrically connected with described on-off circuit.
Further, described control device also includes time reference circuit that is used for time keeping and the serial ports transmission interface circuit that is used to be connected external device, and the input end of time reference circuit and serial ports transmission interface circuit is connected with the output terminal of described single-chip microcomputer respectively.
Further, described on-off circuit is provided with first switch, second switch, the 3rd switch; One end of described first switch is electrically connected with tablet, the other end ground connection of first switch; One end of described second switch is electrically connected with described barricade, the other end ground connection of second switch; One end of described the 3rd switch is electrically connected with barricade, and the other end of the 3rd switch is electrically connected with single-chip microcomputer.
The beneficial effects of the utility model are: described atmospheric electric field pick-up unit, it is by directly measuring induced voltage with the high-precision A converter, the circuit drift equal error of having avoided middle amplification to introduce guarantees to measure the stable of zero point, and does not need Zero calibration.Added the barricade that makes zero simultaneously in the sensing chip front, sensing chip and shield blade ground connection before each the measurement guarantee accurately to make zero the zero point drift of having avoided long-time measurement to bring when external electric field exists.In the needs self check, add DC voltage on the barricade, measure induction field output, whether working properly with checkout equipment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
As shown in Figure 1, a kind of atmospheric electric field monitoring device, comprise tablet 1, ground plate 2, described ground plate 2 takes the shape of the letter U, U-shaped opening part at ground plate 2 is provided with barricade 3, is provided with tablet 1 in the U-lag between barricade 3 and ground connection 2 plates, and described ground plate 2 is electrically connected with tablet 1 by stable state electric capacity 4;
The on-off circuit 5 that also comprises the conversion mode of operation, described on-off circuit 5 is electrically connected with described tablet 1, and described on-off circuit 5 also is connected with acquisition control device 6.Described on-off circuit 5 and acquisition control device all are arranged on the tablet 1.
Described control device 6 comprises the single-chip microcomputer 61 that is used to control, and the output terminal of single-chip microcomputer 61 is connected with the input end of Acquisition Circuit 62; The output terminal of single-chip microcomputer 61 also is electrically connected with described on-off circuit 5.Described control device also includes time reference circuit 63 that is used for time keeping and serial ports transmission interface 64 circuit that are used to be connected external device, and the input end of time reference circuit 63 and serial ports transmission interface circuit 64 is connected with the output terminal of described single-chip microcomputer 61 respectively.
Described on-off circuit is provided with first switch 51, second switch 52, the 3rd switch 53; One end of described first switch 51 is electrically connected with tablet 1, the other end ground connection of first switch 51; One end of described second switch 52 is electrically connected with described barricade 3, the other end ground connection of second switch 52; One end of described the 3rd switch 53 is electrically connected with barricade 3, and the other end of the 3rd switch 53 is electrically connected with single-chip microcomputer.
During concrete work, include three processes:
1. step makes zero: control harvester gauge tap circuit disconnects the 3rd switch 53, connect first switch 51 and second switch 52, at this moment described barricade 3 and tablet 1 equal ground connection, after barricade 3 ground connection, 1 of tablet is in the space of shielding fully, guarantees electric charges all on the tablet 1 is all led away.
2. self check step: first switch 51 and the second switch 52 of on-off circuit all disconnect, the 3rd opens 53 is communicated with, at this moment, just on barricade 3, added DC voltage, between barricade 3 and ground plate 2, will form electric field, by measuring the output quantity on 2, can carry out self check to sensor and circuit part.
3. measuring process: after measuring beginning, three switches of on-off circuit are all disconnected, at this moment, barricade 3 is a vacant state, atmospheric electric field can directly pass barricade 3 on tablet 1 like this, induces electromotive force by acquisition control device again, and this electromotive force and electric field intensity and tablet 2 are directly proportional to the distance on the base of the ground plate 2 that takes the shape of the letter U, because fixed distance, therefore measure the electromotive force intensity of corresponding electric field just on the tablet.By means of the pressure stabilization function of 4 pairs of induced voltages of stable state electric capacity, guaranteed the measurement accuracy when carrying out A/D changes simultaneously.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. atmospheric electric field monitoring device, comprise tablet, ground plate, it is characterized in that, described ground plate takes the shape of the letter U, U-shaped opening part at ground plate is provided with barricade, is provided with tablet in the U-lag between barricade and ground plate, and described ground plate is electrically connected with tablet by stable state electric capacity;
The on-off circuit that also comprises the conversion mode of operation, described on-off circuit is electrically connected with described tablet, and described on-off circuit also with acquisition control device is connected.
2. atmospheric electric field monitoring device as claimed in claim 1 is characterized in that described on-off circuit and acquisition control device all are arranged on the tablet.
3. atmospheric electric field monitoring device as claimed in claim 1 is characterized in that described control device comprises the single-chip microcomputer that is used to control, and the output terminal of single-chip microcomputer is connected with the input end of Acquisition Circuit; The output terminal of single-chip microcomputer also is electrically connected with described on-off circuit.
4. atmospheric electric field monitoring device as claimed in claim 2, it is characterized in that, described control device also includes time reference circuit that is used for time keeping and the serial ports transmission interface circuit that is used to be connected external device, and the input end of time reference circuit and serial ports transmission interface circuit is connected with the output terminal of described single-chip microcomputer respectively.
5. atmospheric electric field monitoring device as claimed in claim 1 is characterized in that, described on-off circuit is provided with first switch, second switch, the 3rd switch; One end of described first switch is electrically connected with tablet, the other end ground connection of first switch; One end of described second switch is electrically connected with described barricade, the other end ground connection of second switch; One end of described the 3rd switch is electrically connected with barricade, and the other end of the 3rd switch is electrically connected with single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201106763U CN201637786U (en) | 2010-02-09 | 2010-02-09 | Detecting device for atmosphere electric field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201106763U CN201637786U (en) | 2010-02-09 | 2010-02-09 | Detecting device for atmosphere electric field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637786U true CN201637786U (en) | 2010-11-17 |
Family
ID=43082290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201106763U Expired - Fee Related CN201637786U (en) | 2010-02-09 | 2010-02-09 | Detecting device for atmosphere electric field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235195A (en) * | 2013-04-28 | 2013-08-07 | 北京理工大学 | Non-contact static detection device |
| CN114167153A (en) * | 2020-09-10 | 2022-03-11 | 台湾积体电路制造股份有限公司 | Device and method for measuring environment static electricity and environment static electricity monitoring system |
-
2010
- 2010-02-09 CN CN2010201106763U patent/CN201637786U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235195A (en) * | 2013-04-28 | 2013-08-07 | 北京理工大学 | Non-contact static detection device |
| CN103235195B (en) * | 2013-04-28 | 2015-07-29 | 北京理工大学 | A kind of Non-contact static detection device |
| CN114167153A (en) * | 2020-09-10 | 2022-03-11 | 台湾积体电路制造股份有限公司 | Device and method for measuring environment static electricity and environment static electricity monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20120209 |