CN102323459B - Alternating magnetic field-resistant manganin current divider - Google Patents
Alternating magnetic field-resistant manganin current divider Download PDFInfo
- Publication number
- CN102323459B CN102323459B CN 201110231609 CN201110231609A CN102323459B CN 102323459 B CN102323459 B CN 102323459B CN 201110231609 CN201110231609 CN 201110231609 CN 201110231609 A CN201110231609 A CN 201110231609A CN 102323459 B CN102323459 B CN 102323459B
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- alternating magnetic
- copper
- manganese
- shunt
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention designs an alternating magnetic field-resistant manganin current divider, which mainly comprises a manganin resistor and sampling end points of a current divider, wherein a wire is arranged on one side of the current divider; a sampling end point is arranged on both sides of the current divider and is connected with a sampling line; the sampling line on one side is pulled to the other side; and the manganin resistor is divided into two regions of the same area; meanwhile, the sampling line is fixed with the sampling line on the side and the two sampling lines are spirally stranded to extend. In the alternating magnetic field-resistant manganin current divider, the sampling line on the side close to the manganin resistor is pulled to the other side close to the manganin resistor, and the manganin resistor is averagely divided into two regions of the same area, so that induction voltage and electromotive force are produced on the sampling line on the other side close to the manganin resistor according to faraday law of electromagnetic induction when the current divider is interfered by an external alternating magnetic field and are balanced with the induction voltage and the electromotive force produced on the manganin resistor, namely the interference of the alternating magnetic field on the current divider can be prevented.
Description
Technical field
The present invention relates to the electrical measurement element, especially a kind of anti-alternating magnetic field manganese copper diverter.
Background technology
Shunt is widely used in and enlarges the instrument measurement range of current, can be used for the backflow to the power supply of communication system, complete electronic set, robotization control etc., and current limliting, current-sharing sampling detect.The key property of shunt is a low resistance device, is provided with sampling end on it.Traditional shunt adopts sample line to the voltage of the manganese copper diverter of flowing through, and electric current is sampled, and the winding of sample line and the position of sampling end points are not had specific (special) requirements.Adopt under normal circumstances this method to carry out voltage, current sample is not have influentially, but this shunt easily is subject to the interference of extraneous alternating magnetic field, makes the precision of its sampling be subject to larger impact, can't work.
Manganese copper diverter is widely used in voltage in the various instrument and meters, and the high precision components of current sample especially relates to the manganese copper diverter for the sampling element of electronic electric energy meter metering electric energy; The power voltage supply that electric current produces by the pressure drop of shunt copper-manganese resistive element can show the metering sampling, and the voltage that produces is generally millivolt grade, especially easily is subjected to the transformer of self usefulness in the electric energy meter, the interference of mutual inductor alternating magnetic field; And outside alternating magnetic field disturbs and cause sampled signal accurate-metering electric energy, particularly some stealing lawless persons not to disturb the electric energy meter normal operation with alternating magnetic field, thereby stealing.Utilize alternating magnetic field to disturb the normal error in dipping of electric energy meter through the test measuring and calculating, change along with the power of alternating magnetic field, maximum error can reach 100%.
Summary of the invention
The objective of the invention is provides a kind of simple in structure, the anti-alternating magnetic field manganese copper diverter that the interference performance of anti-alternating magnetic field is strong for the deficiency that solves above-mentioned technology.
In order to achieve the above object, the anti-alternating magnetic field manganese copper diverter that the present invention is designed, it mainly comprises copper-manganese resistive element and the sampling end points of shunt, wherein side at shunt is provided with wire, be equipped with a sampling end points in the shunt both sides near the copper-manganese resistive element, be connected with sample line on the sampling end points, wherein the sample line near copper-manganese resistive element one side is pulled near copper-manganese resistive element opposite side, the copper-manganese resistive element is divided into two zones that area is identical, simultaneously and spiral stranded extension fixing with the sample line of this side.This design feature: simple in structure, can be according to Faraday's electromagnetic induction law, when alternating magnetic field passed conductor, conductor can produce induced voltage and electromotive force; When externally alternating magnetic field disturbs, be pulled near producing induced voltage and electromotive force on the sample line of copper-manganese resistive element opposite side, and with the copper-manganese resistive element on the induced voltage and the electromotive force that produce balance each other, can prevent that alternating magnetic field from disturbing the sampling of shunt.
In order to make wire, sample line more firm with being connected of shunt, on the splitter side end face, be provided with binding post with wire, sample line correspondence position, wire, sample line are fixed on the binding post by thermoplastic tube.
As optimization, be provided with the welding position salient point at the sampling end place on shunt surface, make welding convenient, it is more accurate to locate, and better with sample line the copper-manganese resistive element is divided into two zones that area is identical.
The resulting anti-alternating magnetic field manganese copper diverter of the present invention, near the copper-manganese resistive element wherein the sample line of a side be pulled near copper-manganese resistive element opposite side, while is stranded and location with the sample line of this side, again two stranded extensions of sample line spiral, sample line is equally divided into two zones that area is identical to the copper-manganese resistive element of shunt simultaneously, like this can be according to Faraday's electromagnetic induction law, when alternating magnetic field passed conductor, conductor can produce induced voltage and electromotive force; When externally alternating magnetic field disturbs, be pulled near producing induced voltage and electromotive force on the sample line of copper-manganese resistive element opposite side, and with copper-manganese resistance on the induced voltage and the electromotive force that produce balance each other, can prevent that alternating magnetic field is to the interference of shunt.Be provided with the welding position salient point on the shunt surface, can make the welding location more accurate, sample line connects more firm, simultaneously be provided with binding post at the splitter side end face, and by thermoplastic tube sample line, wire be fixed on the binding post, more firm, difficult drop-off, long service life.Other this anti-alternating magnetic field manganese copper diverter, simple in structure, production technology is simple, and diamagnetic interference performance is strong.
Description of drawings
Fig. 1 is that sample line of the present invention is the structural representation of copper-manganese resistive element horizontal timesharing;
Fig. 2 is the structural representation of sample line of the present invention when copper-manganese resistive element skew symmetry is divided equally;
Fig. 3 is the positional structure schematic diagram of the welding position salient point on the shunt of the present invention;
Fig. 4 is shunt 1 schematic diagram of prior art of the present invention;
Fig. 5 is shunt 2 schematic diagram of prior art of the present invention.
Embodiment
The invention will be further described by reference to the accompanying drawings below by embodiment.
Embodiment 1:
As shown in Figure 2, the anti-alternating magnetic field manganese copper diverter that the present embodiment is described, it mainly comprises copper-manganese resistive element 4 and the sampling end points 8 of shunt 1, wherein side at shunt 1 is provided with wire 3, be equipped with a sampling end points 8 in shunt 1 both sides near copper-manganese resistive element 4, be connected with sample line 2 on the sampling end points 8, wherein the sample line 2 near copper-manganese resistive element 4 one sides is pulled near copper-manganese resistive element 4 opposite sides, copper-manganese resistive element 4 is divided into two zones that area is identical, fixes and the stranded extensions of spiral with the sample line 2 of this side simultaneously.
As shown in Figure 3, be provided with welding position salient point 5 at sampling end points 8 places on shunt 1 surface.Be provided with binding post 6 with wire 3, sample line 2 correspondence positions on shunt 1 side end face, wire 3, sample line 2 are fixed on the binding post 6 by thermoplastic tube 7.
Embodiment 2:
As shown in Figure 1, the anti-alternating magnetic field shunt that the present embodiment is described, its sample line 2 is divided into two zones that area is identical to copper-manganese resistive element 4 horizontal.
Anti-alternating magnetic field manganese copper diverter of the present invention carries out test comparison with shunt such as the prior art of Fig. 4, Fig. 5:
Test condition: on an electronic electric energy meter, possess temperature, resistance, alternating magnetic field apart from the identical situation of 10mm respectively to Fig. 1, it is as follows that Fig. 4, Fig. 5 shunt carry out test result:
| Alternating magnetic field (mT) | 100mT trueness error % | 50mT trueness error % |
| Fig. 4 shunt | 50％ | 25％ |
| Fig. 5 shunt | 30％ | 17％ |
| Fig. 1 shunt | 7.8％ | 4.3％ |
Add the thick radome of 1.0mm in shunting
| Alternating magnetic field (mT) | 100mT trueness error % | 50mT trueness error % |
| Fig. 4 shunt | 19％ | 3.8％ |
| Fig. 5 shunt | 10.2％ | 1.7％ |
| Fig. 1 shunt | 0.0％ | 0.0％ |
Show from above-mentioned test findings: anti-alternating magnetic field manganese copper diverter of the present invention has obviously weakened the interference of alternating magnetic field, carries the mutual inductor of usefulness in electric energy meter, and the alternating magnetic field that transformer produces can be ignored, and has solved technically interference problem.
Claims (3)
1. anti-alternating magnetic field manganese copper diverter, it mainly comprises copper-manganese resistive element and the sampling end points of shunt, wherein side at shunt is provided with wire, it is characterized in that being equipped with a sampling end points near the shunt both sides of copper-manganese resistive element, be connected with sample line on the sampling end points, wherein the sample line of copper-manganese resistive element one side is pulled to copper-manganese resistive element opposite side, the cross section perpendicular to its end face of copper-manganese resistive element is divided into two zones that area is identical, simultaneously and spiral stranded extension fixing with the sample line of this side.
2. anti-alternating magnetic field manganese copper diverter according to claim 1 is characterized in that being provided with binding post with wire, sample line correspondence position on the splitter side end face, and wire, sample line are fixed on the binding post by thermoplastic tube.
3. anti-alternating magnetic field manganese copper diverter according to claim 1 and 2 is characterized in that being provided with the welding position salient point at shunt near the sampling endpoint location of the both side surface of copper-manganese resistive element.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231609 CN102323459B (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field-resistant manganin current divider |
| RU2013107723/28A RU2574317C2 (en) | 2011-08-12 | 2012-07-09 | Alternating magnetic field counteracting copper-magnesium shunt |
| PCT/CN2012/078382 WO2013023504A1 (en) | 2011-08-12 | 2012-07-09 | Alternating magnetic field-resistant manganin current divider |
| DE112012000136.2T DE112012000136B4 (en) | 2011-08-12 | 2012-07-09 | Manganese copper shunt against alternating electromagnetic fields |
| ZA2013/01523A ZA201301523B (en) | 2011-08-12 | 2013-02-28 | Anti-alternating electromagnetic field management-copper shunt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231609 CN102323459B (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field-resistant manganin current divider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102323459A CN102323459A (en) | 2012-01-18 |
| CN102323459B true CN102323459B (en) | 2013-10-23 |
Family
ID=45451242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110231609 Active CN102323459B (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field-resistant manganin current divider |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102323459B (en) |
| DE (1) | DE112012000136B4 (en) |
| WO (1) | WO2013023504A1 (en) |
| ZA (1) | ZA201301523B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323459B (en) * | 2011-08-12 | 2013-10-23 | 桐乡市伟达电子有限公司 | Alternating magnetic field-resistant manganin current divider |
| CN102707115A (en) * | 2012-06-05 | 2012-10-03 | 江苏林洋电子股份有限公司 | Anti-alternating magnetic field interference current divider |
| CN102854347A (en) * | 2012-08-09 | 2013-01-02 | 俞敏 | Electric energy meter and current sampling device thereof |
| CN102854368A (en) * | 2012-09-27 | 2013-01-02 | 杭州炬华科技股份有限公司 | Manganin current sampling device resisting outside magnetic field interference |
| CN103257260B (en) * | 2012-10-24 | 2017-02-08 | 惠州市惠之声实业有限公司 | Method for resisting alternating magnetic field interference and sample resistor |
| CN202903841U (en) * | 2012-11-26 | 2013-04-24 | 厦门宏发电力电器有限公司 | Electronic watt-hour meter capable of resisting alternating magnetic field interference |
| CN103913609B (en) * | 2012-12-31 | 2018-02-16 | 深圳赫美集团股份有限公司 | The measuring instrumentss and its implementation not influenceed by alternation external magnetic field |
| CN103063891B (en) * | 2013-01-10 | 2014-11-26 | 浙江力辉电器有限公司 | Anti-interference intelligent electric meter and anti-interference method of intelligent electric meter |
| CN103076475B (en) * | 2013-01-10 | 2015-01-07 | 浙江力辉电器有限公司 | Anti-interference manganese-copper current divider |
| CN103176019A (en) * | 2013-03-23 | 2013-06-26 | 桐乡市伟达电子有限公司 | High-precision diverter |
| CN104122426A (en) * | 2014-07-25 | 2014-10-29 | 桐乡市伟达电子有限公司 | High-precision sampling diverter and production method thereof |
| JP2016206138A (en) * | 2015-04-28 | 2016-12-08 | Koa株式会社 | Current detection device |
| CN109613468A (en) * | 2018-12-29 | 2019-04-12 | 杭州明特科技有限公司 | Dosage compensation method/system, medium and processing equipment based on magnetic field influence amount |
| CN110836988A (en) * | 2019-11-25 | 2020-02-25 | 新沂市鑫洋电子有限公司 | Manganese-copper current divider capable of resisting work magnetic interference and application thereof |
| CN110836997A (en) * | 2019-11-26 | 2020-02-25 | 新沂市鑫洋电子有限公司 | Manganese-copper current divider with good electromagnetic compatibility and application thereof |
| RU197196U1 (en) * | 2019-12-11 | 2020-04-10 | Общество с ограниченной ответственностью "МИРТЕК" | Measuring shunt |
| CN113687142B (en) * | 2021-08-26 | 2023-06-23 | 国网江西省电力有限公司供电服务管理中心 | DC electric energy metering module based on current divider |
| CN114778916A (en) * | 2022-03-25 | 2022-07-22 | 桐乡市伟达电子有限公司 | Anti-magnetic field current divider, electric power meter thereof and manufacturing method of anti-magnetic field current divider |
| CN116449064B (en) * | 2023-03-12 | 2023-10-31 | 深圳市开步电子有限公司 | Shunt, electric equipment and energy storage equipment thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200976020Y (en) * | 2006-10-20 | 2007-11-14 | 深圳长城开发科技股份有限公司 | Current divider |
| CN101097232A (en) * | 2007-03-30 | 2008-01-02 | 桐乡市伟达电子有限公司 | Forming method of current divider |
| CN101165496A (en) * | 2006-10-20 | 2008-04-23 | 深圳长城开发科技股份有限公司 | Flow divider |
| CN201555873U (en) * | 2009-09-11 | 2010-08-18 | 朱卫明 | Multi-purpose copper-manganese diverter |
| CN202177647U (en) * | 2011-08-12 | 2012-03-28 | 桐乡市伟达电子有限公司 | Alternating magnetic field resistant manganin diverter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH659895A5 (en) | 1983-06-09 | 1987-02-27 | Landis & Gyr Ag | ARRANGEMENT FOR MEASURING A CURRENT. |
| FR2884615B1 (en) * | 2005-04-13 | 2007-06-29 | Valeo Electronique Sys Liaison | DEVICE FOR MEASURING CURRENT, IN PARTICULAR A BATTERY |
| CN201429643Y (en) * | 2009-07-06 | 2010-03-24 | 山东山大奥太电气有限公司 | Novel diverter |
| CN102323459B (en) * | 2011-08-12 | 2013-10-23 | 桐乡市伟达电子有限公司 | Alternating magnetic field-resistant manganin current divider |
-
2011
- 2011-08-12 CN CN 201110231609 patent/CN102323459B/en active Active
-
2012
- 2012-07-09 DE DE112012000136.2T patent/DE112012000136B4/en active Active
- 2012-07-09 WO PCT/CN2012/078382 patent/WO2013023504A1/en active Application Filing
-
2013
- 2013-02-28 ZA ZA2013/01523A patent/ZA201301523B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200976020Y (en) * | 2006-10-20 | 2007-11-14 | 深圳长城开发科技股份有限公司 | Current divider |
| CN101165496A (en) * | 2006-10-20 | 2008-04-23 | 深圳长城开发科技股份有限公司 | Flow divider |
| CN101097232A (en) * | 2007-03-30 | 2008-01-02 | 桐乡市伟达电子有限公司 | Forming method of current divider |
| CN201555873U (en) * | 2009-09-11 | 2010-08-18 | 朱卫明 | Multi-purpose copper-manganese diverter |
| CN202177647U (en) * | 2011-08-12 | 2012-03-28 | 桐乡市伟达电子有限公司 | Alternating magnetic field resistant manganin diverter |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2013107723A (en) | 2014-08-27 |
| DE112012000136B4 (en) | 2019-02-21 |
| WO2013023504A1 (en) | 2013-02-21 |
| CN102323459A (en) | 2012-01-18 |
| DE112012000136T5 (en) | 2013-06-27 |
| ZA201301523B (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102323459B (en) | Alternating magnetic field-resistant manganin current divider | |
| CN202177647U (en) | Alternating magnetic field resistant manganin diverter | |
| US7719258B2 (en) | Method and apparatus for current measurement using hall sensors without iron cores | |
| CN107271744B (en) | Lead structure of manganin shunt, PCB and wiring structure of PCB | |
| CN102735919A (en) | Alternating current power measuring apparatus | |
| CN102818927A (en) | Measuring device and measuring method of reverse small current in direct current distribution system | |
| CN103176019A (en) | High-precision diverter | |
| CN103575958A (en) | Device for measuring the direct component of alternating current | |
| CN105223536A (en) | A kind of portable electric meter field calibration system | |
| CN111190036A (en) | Shunt lead structure, electric power meter with shunt lead structure and manufacturing method of shunt lead structure | |
| CN103620421A (en) | Current detector and electricity meter | |
| JP2010256141A (en) | Current detection apparatus and watt-hour meter using the same | |
| CN203164408U (en) | Current transformer error testing circuit | |
| CN201749142U (en) | Double-coil current sensor | |
| CN202815037U (en) | Electronic electric energy meter capable of reducing interference on current divider caused by alternating magnetic filed | |
| CN202815087U (en) | Electronic electric energy meter capable of reducing alternating electromagnetic interference | |
| CN106841808B (en) | The auxiliary winding measurement method of intermediate-frequency transformer winding AC resistance | |
| CN204946702U (en) | A kind of Multichannel isolating voltage instrument transformer with compensation | |
| CN102707115A (en) | Anti-alternating magnetic field interference current divider | |
| CN204964744U (en) | On --spot calibration system of portable electric energy meter | |
| CN104502664A (en) | Low-resistance non-inductive self-integration Rogowski coil integration resistor and manufacturing method thereof | |
| CN203672929U (en) | Manganin diverter with alternating magnetic field interference-proof property, relay and electronic electric energy meter | |
| CN103575959A (en) | Novel non-contact three-phase current measuring method | |
| CN201689775U (en) | Manganin mutual inductor preventing alternating magnetic field | |
| CN202661520U (en) | Anti-alternating magnetic field interference shunt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 314500 1-2 floors of 7 blocks, 320 Tongsheng Road, Fengming Street, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Tongxiang Weida Electronics Co., Ltd. Address before: 314513 Zhongan Village, Zhouquan Town, Tongxiang City, Jiaxing City, Zhejiang Province Patentee before: Tongxiang Weida Electronics Co., Ltd. |