CN202443057U - Pincers-shaped current sensor - Google Patents
Pincers-shaped current sensor Download PDFInfo
- Publication number
- CN202443057U CN202443057U CN2012200796262U CN201220079626U CN202443057U CN 202443057 U CN202443057 U CN 202443057U CN 2012200796262 U CN2012200796262 U CN 2012200796262U CN 201220079626 U CN201220079626 U CN 201220079626U CN 202443057 U CN202443057 U CN 202443057U
- Authority
- CN
- China
- Prior art keywords
- current sensor
- pincers
- plastic handle
- button
- shaped current
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a pincers-shaped current sensor and belongs to the field of sensors. The pincers-shaped current sensor structurally comprises pincers arms, a plastic handle and a button, wherein the button is arranged on one side of the plastic handle and matched with one of the pincers arms. Compensating coils are wound on the two pincers arms, and electric field shields are wrapped outside the compensating coils. Compared with the prior art, the pincers-shaped current sensor has the advantages of being reasonable in design, simple in structure, easy to process, convenient to use, high in measurement accuracy and the like.
Description
Technical field
The utility model relates to sensor field, specifically pincerlike current sensor.
Background technology
Traditional pincerlike current sensor is made up of tong arm, button and handle, and tong arm is made up of magnetic core, sensing coil and magnetic field shielding.Sensor in use, directly connection load of sensing coil output, magnetic core works in the power delivery state, amplitude and phase error are very big, have influenced the accuracy of measurement data.
Summary of the invention
The technical assignment of the utility model is to above weak point, and a kind of simple in structure, easy to use, pincerlike current sensor that measuring accuracy is high is provided.
The utility model solves the technical scheme that its technical matters adopted: this pincer current sensor comprises tong arm, plastic handle and button, and button is arranged on a side of plastic handle, and cooperates with one of them tong arm; Be wound with compensating coil on two tong arms, compensating coil is wrapped with electric field shielding.
Scribble one deck conductive paint on the inwall of described plastic handle.
The pincerlike current sensor of the utility model is compared with prior art, have reasonable in design, simple in structure, be easy to characteristics such as processing, easy to use, measuring accuracy height.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is the structural representation of pincerlike current sensor.
Among the figure: 1, tong arm, 2, plastic handle, 3, button, 4, compensating coil, 5, electric field shielding, 6, conductive paint.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
The pincerlike current sensor of the utility model, its structure comprise tong arm 1, plastic handle 2 and button 3, and button 3 is arranged on a side of plastic handle 2, and cooperate with one of them tong arm 1; Scribble one deck conductive paint 6 on the inwall of plastic handle 2; All be wound with compensating coil 4 on two tong arms 1, compensating coil 4 is wrapped with electric field shielding 5.
Principle of work is: electric current I X to be measured makes sensing coil produce current signal IS, and IS produces offset current IL through the amplification of the amplifier in the plastic handle 2 back through compensating coil 4 and IX offsets.The amplifier current gain is R2/RL, and its representative value is 500.The error that is caused by magnetic core is reduced to 1/500.Test shows that amplitude error can reach 0.02%, and phase error can reach 0.005 °.
Compensating coil 4 coated outside electric field shieldings 5, plastic handle 2 inwalls scribble conductive paint (3), have all effectively eliminated the electric field interference.
Its processing and fabricating of pincerlike current sensor of the utility model is very simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (2)
1. pincerlike current sensor comprises tong arm, plastic handle and button, and button is arranged on a side of plastic handle, and cooperates with one of them tong arm; It is characterized in that being wound with compensating coil on two tong arms, compensating coil is wrapped with electric field shielding.
2. pincerlike current sensor according to claim 1 is characterized in that scribbling one deck conductive paint on the inwall of described plastic handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200796262U CN202443057U (en) | 2012-03-06 | 2012-03-06 | Pincers-shaped current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200796262U CN202443057U (en) | 2012-03-06 | 2012-03-06 | Pincers-shaped current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202443057U true CN202443057U (en) | 2012-09-19 |
Family
ID=46824501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200796262U Expired - Lifetime CN202443057U (en) | 2012-03-06 | 2012-03-06 | Pincers-shaped current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202443057U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944739A (en) * | 2012-11-14 | 2013-02-27 | 广东电网公司中山供电局 | Large-aperture forcipate micro-current sensor device |
| CN103048518A (en) * | 2012-12-11 | 2013-04-17 | 上海市电力公司 | Small type current clamp for checking of live line measurement scene |
| CN105182060A (en) * | 2015-10-08 | 2015-12-23 | 三峡大学 | Self-power distributed wireless current sensor |
| CN108152571A (en) * | 2017-12-29 | 2018-06-12 | 国网浙江省电力公司湖州供电公司 | A kind of residual current dynamic trace analysis recording curve triggering short message apparatus and method |
| CN108226623A (en) * | 2017-12-29 | 2018-06-29 | 国网浙江省电力公司湖州供电公司 | A kind of residual current dynamic trace analysis recording curve triggering note system and method |
-
2012
- 2012-03-06 CN CN2012200796262U patent/CN202443057U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944739A (en) * | 2012-11-14 | 2013-02-27 | 广东电网公司中山供电局 | Large-aperture forcipate micro-current sensor device |
| CN102944739B (en) * | 2012-11-14 | 2015-08-19 | 广东电网公司中山供电局 | Large-aperture forcipate micro-current sensor device |
| CN103048518A (en) * | 2012-12-11 | 2013-04-17 | 上海市电力公司 | Small type current clamp for checking of live line measurement scene |
| CN103048518B (en) * | 2012-12-11 | 2015-12-02 | 上海市电力公司 | A kind of small current pincers of live line measurement field-checking |
| CN105182060A (en) * | 2015-10-08 | 2015-12-23 | 三峡大学 | Self-power distributed wireless current sensor |
| CN105182060B (en) * | 2015-10-08 | 2018-07-24 | 三峡大学 | A kind of self-powered distributed wireless current sensor |
| CN108152571A (en) * | 2017-12-29 | 2018-06-12 | 国网浙江省电力公司湖州供电公司 | A kind of residual current dynamic trace analysis recording curve triggering short message apparatus and method |
| CN108226623A (en) * | 2017-12-29 | 2018-06-29 | 国网浙江省电力公司湖州供电公司 | A kind of residual current dynamic trace analysis recording curve triggering note system and method |
| CN108152571B (en) * | 2017-12-29 | 2020-06-30 | 国网浙江省电力公司湖州供电公司 | Residual current dynamic tracking analysis recording curve triggering short message device and method |
| CN108226623B (en) * | 2017-12-29 | 2020-06-30 | 国网浙江省电力公司湖州供电公司 | Residual current dynamic tracking analysis recording curve triggering short message system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |
|
| CX01 | Expiry of patent term |