CN204359889U - For the Non-contact electrostatic detection device that electrical equipment grounding detects - Google Patents
For the Non-contact electrostatic detection device that electrical equipment grounding detects Download PDFInfo
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- CN204359889U CN204359889U CN201420796290.0U CN201420796290U CN204359889U CN 204359889 U CN204359889 U CN 204359889U CN 201420796290 U CN201420796290 U CN 201420796290U CN 204359889 U CN204359889 U CN 204359889U
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- chip microcomputer
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- conditioning circuit
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 230000003750 conditioning effect Effects 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a kind of Non-contact electrostatic detection device detected for electrical equipment grounding, comprise, Cylindrical Electrostatic probe, amplifying circuit, signal conditioning circuit, humidity sensor, temperature sensor, wireless communication module and single-chip microcomputer, the signal of described Cylindrical Electrostatic probe detection transfers to single-chip microcomputer through amplifying circuit and signal conditioning circuit successively, the signal of described humidity sensor detection transfers to single-chip microcomputer through signal conditioning circuit, the signal of described temperature sensor detection transfers to single-chip microcomputer through signal conditioning circuit, described single-chip microcomputer and wireless communication module communicate to connect.Reach the object of electrical equipment grounding being carried out to monitoring in real time.
Description
Technical field
The utility model relates to field of electrical equipment, particularly, relates to a kind of Non-contact electrostatic detection device detected for electrical equipment grounding.
Background technology
The effect of earthing device mainly prevents that the person from getting shocked, equipment and circuit suffers damage, fire preventing and prevent thunderbolt, prevent static damage and ensure that electric system normally runs, and is an important component part in electric system.No matter be heavy current installation or weak current equipment,
No matter be high-tension apparatus or low-voltage equipment, the whether qualified normal safe all directly having influence on system and equipment of earthing device runs.Once there is imperfect earth in electrical equipment, the gathering of a large amount of electrostatic can threaten to equipment and staff; And when electrostatic reaches certain value, likely cause equipment failure even fire because of static discharge, thus cause the loss being difficult to make up.
At present, judge that whether electrical equipment grounding is good, usually adopt the method for ground resistance measuring instrument or pincerlike earth resistance tester measuring equipment grounding resistance to judge.Electrical equipment is widely distributed, from city to small towns, arrive field indoor to have, if carry out periodic detection by the artificial mode surveying stake resistance, waste a large amount of human and material resources and time on the one hand, on the other hand because the fault of earthing device is usually with very large contingency and randomness, thus real-time monitoring cannot be accomplished.
Utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of Non-contact electrostatic detection device detected for electrical equipment grounding, to realize the advantage of electrical equipment grounding being carried out to monitoring in real time.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of Non-contact electrostatic detection device detected for electrical equipment grounding, comprise, Cylindrical Electrostatic probe, amplifying circuit, signal conditioning circuit, humidity sensor, temperature sensor, wireless communication module and single-chip microcomputer, the signal of described Cylindrical Electrostatic probe detection transfers to single-chip microcomputer through amplifying circuit and signal conditioning circuit successively, the signal of described humidity sensor detection transfers to single-chip microcomputer through signal conditioning circuit, the signal of described temperature sensor detection transfers to single-chip microcomputer through signal conditioning circuit, and described single-chip microcomputer and wireless communication module communicate to connect.
Further, also comprise housing, battery, antenna and pcb board, described battery, antenna and pcb board are all arranged on the inside of housing, described pcb board is arranged on the bottom of housing, described Cylindrical Electrostatic probe, humidity sensor and temperature sensor are arranged on housing exterior walls, described amplifying circuit, signal conditioning circuit, wireless communication module and single-chip microcomputer are printed on pcb board, described wireless communication module is connected with antenna electric, described battery provides direct supply for detector, the bottom of hull outside arranges mount pad and earthing rod, one end of described earthing rod is electrically connected with pcb board, and the height of described earthing rod is greater than the height of mount pad.
The technical solution of the utility model has following beneficial effect:
The technical solution of the utility model, Cylindrical Electrostatic probe, humidity sensor and temperature sensor is utilized to carry out real-time detection to electrical equipment grounding, and by wireless communication module, detection data are transferred out, thus according to the data detected real-time judge earthing device of electrical equipment whether fault, reach the object of electrical equipment grounding being carried out to monitoring in real time.Non-contact electrostatic detection device is owing to have employed closely capacitive sensing technology, and accurately and reliably, have temperature and humidity compensated, thus error is minimum simultaneously in electrostatic change.Can protect the ESD of electrical equipment simultaneously on the one hand, the maintenance of earthing device and replacing provide foundation, thus greatly can reduce the accident that causes because equipment ground is bad, and increase the serviceable life of equipment.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the Non-contact electrostatic detection device theory diagram detected for electrical equipment grounding described in the utility model embodiment;
Fig. 2 is the structural representation of the Non-contact electrostatic detection device for electrical equipment grounding detection described in the utility model embodiment;
Fig. 3 is the equivalent electrical circuit figure of the Non-contact electrostatic detection device for electrical equipment grounding detection described in the utility model embodiment.
By reference to the accompanying drawings, in the utility model embodiment, Reference numeral is as follows:
1-humidity sensor; 2-temperature sensor; 3-Cylindrical Electrostatic probe; 4-battery; 5-antenna; 6-PCB plate; 7-earthing rod; 8-mount pad; 9-housing.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of Non-contact electrostatic detection device detected for electrical equipment grounding, comprise, Cylindrical Electrostatic probe, amplifying circuit, signal conditioning circuit, humidity sensor, temperature sensor, wireless communication module and single-chip microcomputer, the signal of Cylindrical Electrostatic probe detection transfers to single-chip microcomputer through amplifying circuit and signal conditioning circuit successively, the signal of humidity sensor detection transfers to single-chip microcomputer through signal conditioning circuit, the signal of temperature sensor detection transfers to single-chip microcomputer through signal conditioning circuit, and single-chip microcomputer and wireless communication module communicate to connect.
As shown in Figure 2, the Non-contact electrostatic detection device detected for electrical equipment grounding also comprises housing 9, battery 4, antenna 5 and pcb board 6, battery 4, antenna 5 and pcb board 6 are all arranged on the inside of housing 9, pcb board 6 is arranged on the bottom of housing 9, Cylindrical Electrostatic probe 3, humidity sensor 1 and temperature sensor 2 are arranged on housing 9 outer wall, amplifying circuit, signal conditioning circuit, wireless communication module and single-chip microcomputer are printed on pcb board 6, and namely amplifying circuit, signal conditioning circuit, wireless communication module and single-chip microcomputer are all integrated on pcb board 6.Wireless communication module is electrically connected with antenna 5, and battery 4 provides direct supply for detector, and the bottom outside housing 9 arranges mount pad 8 and earthing rod 7, and one end of earthing rod 7 is electrically connected with pcb board 6, and the height of earthing rod 7 is greater than the height of mount pad 8.
When electrical equipment grounding is bad, the electrostatic that equipment surface is gathered cannot discharge immediately, produces certain potential to ground near equipment, as long as thus by the change of the electrostatic potential around detection measured object, whether ground connection is good can to judge measured object.
As shown in Figure 3, be variable capacitance detection electrostatic principle and model, in Fig. 3, Cp: testing capacitance value, sensor is to the electric capacity on testee surface, and this capacitance changes with the increase of measured object surface charge; C2: sensor ground capacitance; C3: sensor probe is to measured object surface capacitance; C4: sensor probe ground capacitance; Cp2: variable capacitance transducer capacitance, Cp matching capacitance, can record the change of measured object electrostatic by the change detecting this capacitance.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. the Non-contact electrostatic detection device detected for electrical equipment grounding, it is characterized in that, comprise, Cylindrical Electrostatic probe, amplifying circuit, signal conditioning circuit, humidity sensor, temperature sensor, wireless communication module and single-chip microcomputer, the signal of described Cylindrical Electrostatic probe detection transfers to single-chip microcomputer through amplifying circuit and signal conditioning circuit successively, the signal of described humidity sensor detection transfers to single-chip microcomputer through signal conditioning circuit, the signal of described temperature sensor detection transfers to single-chip microcomputer through signal conditioning circuit, described single-chip microcomputer and wireless communication module communicate to connect.
2. the Non-contact electrostatic detection device detected for electrical equipment grounding according to claim 1, it is characterized in that, also comprise housing, battery, antenna and pcb board, described battery, antenna and pcb board are all arranged on the inside of housing, described pcb board is arranged on the bottom of housing, described Cylindrical Electrostatic probe, humidity sensor and temperature sensor are arranged on housing exterior walls, described amplifying circuit, signal conditioning circuit, wireless communication module and single-chip microcomputer are printed on pcb board, described wireless communication module is connected with antenna electric, described battery provides direct supply for detector, the bottom of hull outside arranges mount pad and earthing rod, one end of described earthing rod is electrically connected with pcb board, and the height of described earthing rod is greater than the height of mount pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796290.0U CN204359889U (en) | 2014-12-17 | 2014-12-17 | For the Non-contact electrostatic detection device that electrical equipment grounding detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796290.0U CN204359889U (en) | 2014-12-17 | 2014-12-17 | For the Non-contact electrostatic detection device that electrical equipment grounding detects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204359889U true CN204359889U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420796290.0U Expired - Fee Related CN204359889U (en) | 2014-12-17 | 2014-12-17 | For the Non-contact electrostatic detection device that electrical equipment grounding detects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204359889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845190A (en) * | 2018-06-26 | 2018-11-20 | 芜湖广智天和信息技术有限公司 | A kind of light current route safety alarm device |
-
2014
- 2014-12-17 CN CN201420796290.0U patent/CN204359889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845190A (en) * | 2018-06-26 | 2018-11-20 | 芜湖广智天和信息技术有限公司 | A kind of light current route safety alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20171217 |