CN107192868A - A kind of flexible current measurement apparatus - Google Patents
A kind of flexible current measurement apparatus Download PDFInfo
- Publication number
- CN107192868A CN107192868A CN201710551833.0A CN201710551833A CN107192868A CN 107192868 A CN107192868 A CN 107192868A CN 201710551833 A CN201710551833 A CN 201710551833A CN 107192868 A CN107192868 A CN 107192868A
- Authority
- CN
- China
- Prior art keywords
- rogowski coil
- housing
- measurement apparatus
- current measurement
- hollow pipe
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
Abstract
The present invention provides a kind of flexible current measurement apparatus, including detection means and data processing equipment, detection means includes housing, two calibration tubes being removably disposed on housing and the Rogowski coil being arranged on housing, Rogowski coil have be located at hull outside can deformation two free segments, two free segments may extend to be finalized in two calibration tubes, measurement space is constituted between two calibration tubes, data processing equipment is connected with Rogowski coil, for the signal that Rogowski coil is sensed to be amplified and integrated, to obtain the electric current of test line.No matter test line distance is measurable by the present invention, and measurement accuracy meets and required, reduces production difficulty, improves production efficiency, it is adaptable to more occasions, and can increase the service life.
Description
Technical field
The present invention relates to a kind of flexible current measurement apparatus.
Background technology
Clamp ammeter disconnects test line because being not required to when it is measured, therefore is widely used in various current measurement necks
Domain.Clamp ammeter common at present includes clamp measurement device, the spanner for controlling clamp measurement device folding, measured with clamp
The data processing device and display device of device connection, measurement device is specially coil, the hall sensing being wrapped on permanent magnet
Device or Rogowski coil.For clamp electric current of the measurement device using the coil or Hall sensor being wrapped on permanent magnet
Table, when in use, measurement device is opened by spanner, test line is put into measurement device, is closed again measurement device progress
Measurement, but in order to ensure that measurement accuracy meets requirement, measurement device must be closed strictly so that magnetic circuit is closed, therefore adds pincers
The production difficulty of type ammeter；When carrying out high-tension measurement, operator, which needs access to high-tension line, could complete measurement, therefore make
With existing clamp ammeter when carrying out high-altitude or high-tension measurement (such as measurement overhead transmission line), there is certain potential safety hazard；
And because clamp measurement device often carries out opening and closing movement, make its loss increase, shorten the service life of ammeter, and influence
Measurement accuracy.When measurement device uses Rogowski coil, due to Rogowski coil it is main by soft nonmetallic materials and
Wire, which is wound in, to be formed, and soft nonmetallic materials make the easy deformation of Rogowski coil so that Rogowski coil when measuring without
Method forms fixed measurement loop, influences accuracy of measurement.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, to propose a kind of flexible current measurement apparatus, make detection means
Fixed measurement loop is formed in measurement, it is ensured that accuracy of measurement, and no matter test line distance is measurable, reduction
Production difficulty, improves production efficiency, it is adaptable to more occasions, increases the service life.
The present invention is achieved through the following technical solutions：
A kind of flexible current measurement apparatus, including detection means and data processing equipment, detection means include housing, removable
Two calibration tubes being disposed on unloading on housing and the Rogowski coil being arranged on housing, Rogowski coil, which has, to be located at outside housing
Portion can deformation two free segments, two free segments may extend to be finalized in two calibration tubes, and measurement space is constituted between two calibration tubes,
Data processing equipment is connected with Rogowski coil, for the signal that Rogowski coil is sensed to be amplified and integrated, with obtain by
The electric current on survey line road.
Further, the calibration tube includes the adapter sleeve that can be closely arranged on the housing and is arranged on adapter sleeve
Hollow pipe, be provided with the through hole relative with hollow pipe on adapter sleeve, hollow pipe side offers long along hollow pipe
Spend the breach of direction extension.
Further, the hollow pipe is arc pipe, and two arc pipes substantially constitute an annulus.
Further, the hollow pipe includes the arc pipe being arranged on the adapter sleeve and is arranged on arc pipe
The vertical pipeline of one end.
Further, the housing is the first cuboid, and two free segment is respectively from the relative both sides of the first cuboid
Face is extended in the calibration tube.
Further, the adapter sleeve is that can be set in the second cuboid on first cuboid, the hollow pipe
Road is arranged on the side of the second cuboid.
Further, in addition to expansion link on the housing is set.
Further, the data processing equipment includes the circuit board being connected with the Rogowski coil.
The present invention has the advantages that：
The calibration tube of the present invention is removably disposed on housing, and the hollow pipe of calibration tube has two kinds of differences
Form, using Rogowski coil flexibility can deformation the characteristics of, suitable calibration tube can be selected as the case may be by Rogowski coil
Sizing, so that detection means forms the measuring loop of the fixation suitable for concrete condition in measurement, to ensure the accurate of measurement
Degree.
In the case that test line local environment allows, the calibration tube that hollow pipe is arc pipe, two arcs can be used
Shape pipeline substantially constitutes an annulus, and tested wire is passed through from annulus, can obtain higher measurement accuracy, when needs measure high
During the electric current of empty or high-tension line, can be formed using the calibration tube with vertical pipeline, between two vertical pipelines be put into it is tested
The entrance of circuit, the characteristics of not needing strict closed magnetic circuit when being measured using Rogowski coil can carry out long distance by action bars
It from operation, both can guarantee that measurement accuracy met requirement, and without operating personnel close to test line, eliminated safe hidden trouble, ensured
The safety of operating personnel.
The present invention is made two calibration tubes to be measured without strictly closure, reduced using the measurement characteristicses of Rogowski coil
Production difficulty, improves production efficiency, using arc pipe hollow circular-tube when, the higher occasion of required precision can be applied to,
And when using the hollow circular-tube with vertical pipeline, still ensure that measurement accuracy, it is adaptable to more occasions, and it is simple to operate, use
It is convenient and safe.
In the use of the present invention, two calibration tubes are without continually carrying out opening and closing movement, therefore, it is possible to reduce the damage of calibration tube
Consumption, extends the service life of current measuring device.
Brief description of the drawings
The present invention is described in further details below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is Fig. 1 exploded view.
Fig. 3 is the decomposition texture schematic diagram of the embodiment of the present invention two.
Fig. 4 is Fig. 3 front view.
Embodiment
Embodiment one：
As depicted in figs. 1 and 2, current measuring device includes detection means and data processing equipment, and detection means includes shell
Body 1, two calibration tubes 2 being removably disposed on housing 1, the Rogowski coil being arranged on housing 1 and it is arranged on housing 1
On expansion link (being not drawn into figure), Rogowski coil have be located at the outside of housing 1 can deformation two free segments 31, Rogowski coil two
Part between free segment 31 is set within the case 1, and two free segments 31 may extend to be finalized in two calibration tubes 2, two calibration tubes 2
Between constitute measurement space, data processing equipment sets within the case 1 and is connected with Rogowski coil, for sensing to Rogowski coil
To signal be amplified and integrate, to obtain the electric current of test line, specifically, data processing equipment includes and Rogowski coil
The circuit board of connection.
Calibration tube 2 includes the adapter sleeve 21 that can be closely set on housing 1 and the hollow pipe being arranged on adapter sleeve 21
22, offer the through hole relative with hollow pipe 22 on adapter sleeve 21, for Rogowski coil free segment 31 from adapter sleeve 21
Into hollow pipe 22, the side of hollow pipe 22 offers the breach 23 extended along the length direction of hollow pipe 22, passes through breach
23 can be fixed to free segment 31 and the identical shape of calibration tube 2.
Housing 1 is the first cuboid, and two free segments 31 extend to sizing from the relative two sides 11 of the first cuboid respectively
In pipe 2, adapter sleeve 21 is the second cuboid, and bottom surface 24 and the side 25 of the second cuboid offer two resigning holes connected, empty
Heart pipeline 22 be arranged on side 25 relative sides 26 on, the through hole relative with hollow pipe 22 be also disposed at side 26 on,
Free segment 31 enters after the second cuboid from the resigning hole of side 25, enters hollow pipe 22 from the through hole on side 26, and then
The second cuboid is set closely to be set on the first cuboid.
Hollow pipe 22 is arc pipe, and two arc pipes substantially constitute an annulus, during measurement, is tested wire and is located at circle
In ring, measurement accuracy is higher, it is adaptable to the occasion being had higher requirements to measurement accuracy.
Embodiment two：
As shown in Figure 3 and Figure 4, the present embodiment is with the difference of embodiment one：Hollow pipe 22 includes the company of being arranged on
It is formed between arc pipe 27 and the vertical pipeline 28 for being arranged on the one end of arc pipe 27 in female connector 21, two hollow pipes 22
The entrance of tested wire is put into, during measurement, wire is tested and is located between two vertical pipelines 28, using the characteristic of Rogowski coil, still
So it ensure that measurement accuracy, it is adaptable to more occasions.
The foregoing is only a preferred embodiment of the present invention, therefore the scope that the present invention is implemented can not be limited with this, i.e.,
The equivalent changes and modifications made according to scope of the present invention patent and description, all should still belong to what patent of the present invention covered
In the range of.
Claims (8)
1. a kind of flexible current measurement apparatus, it is characterised in that：Including detection means and data processing equipment, detection means includes
Housing, two calibration tubes being removably disposed on housing and the Rogowski coil being arranged on housing, Rogowski coil have
Positioned at hull outside can deformation two free segments, two free segments may extend to be finalized in two calibration tubes, structure between two calibration tubes
Into measurement space, data processing equipment is connected with Rogowski coil, for the signal that Rogowski coil is sensed to be amplified and accumulated
Point, to obtain the electric current of test line.
2. a kind of flexible current measurement apparatus according to claim 1, it is characterised in that：The calibration tube includes can be close
It is arranged on adapter sleeve on the housing and the hollow pipe being arranged on adapter sleeve, adapter sleeve and is provided with and hollow pipe phase
To through hole, hollow pipe side offer along hollow pipe length direction extend breach.
3. a kind of flexible current measurement apparatus according to claim 2, it is characterised in that：The hollow pipe is curved pipe
Road, two arc pipes substantially constitute an annulus.
4. a kind of flexible current measurement apparatus according to claim 2, it is characterised in that：The hollow pipe includes setting
Arc pipe and the vertical pipeline for being arranged on arc pipe one end on the adapter sleeve.
5. a kind of flexible current measurement apparatus according to claim 1 or 2 or 3 or 4, it is characterised in that：The housing is
First cuboid, during two free segment extends to the calibration tube from the relative two sides of the first cuboid respectively.
6. a kind of flexible current measurement apparatus according to claim 5, it is characterised in that：The adapter sleeve is to be set in
The second cuboid on first cuboid, the hollow pipe is arranged on the side of the second cuboid.
7. a kind of flexible current measurement apparatus according to claim 1 or 2 or 3 or 4, it is characterised in that：Also include setting
Expansion link on the housing.
8. a kind of flexible current measurement apparatus according to claim 1 or 2 or 3 or 4, it is characterised in that：At the data
Reason device includes the circuit board being connected with the Rogowski coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710551833.0A CN107192868A (en) | 2017-07-07 | 2017-07-07 | A kind of flexible current measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710551833.0A CN107192868A (en) | 2017-07-07 | 2017-07-07 | A kind of flexible current measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107192868A true CN107192868A (en) | 2017-09-22 |
Family
ID=59882898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710551833.0A Pending CN107192868A (en) | 2017-07-07 | 2017-07-07 | A kind of flexible current measurement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107192868A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152540A (en) * | 2017-12-26 | 2018-06-12 | 国家电网公司 | Pincerlike meter clamp extender, pincerlike meter assembly and current measuring method |
| EP3862761A1 (en) * | 2020-02-05 | 2021-08-11 | Fluke Corporation | Sensor probe with clamp having adjustable interior region for non-contact electrical measurement |
| US11662368B2 (en) | 2020-02-05 | 2023-05-30 | Fluke Corporation | Non-contact voltage measurement with adjustable size Rogowski coil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130042718A1 (en) * | 2011-08-15 | 2013-02-21 | GM Global Technology Operations LLC | Conformable shape memory article |
| CN105406413A (en) * | 2015-11-24 | 2016-03-16 | 国网山东乳山市供电公司 | Network cable molding and fixing device |
| CN205842331U (en) * | 2016-06-06 | 2016-12-28 | 安徽一路明光电科技有限公司 | A kind of deformable LED lamp bar |
| CN106696016A (en) * | 2016-12-14 | 2017-05-24 | 韦超彬 | Bamboo basket shaping frame and bamboo basket shaping method adopting bamboo basket shaping frame |
| CN206208974U (en) * | 2016-11-28 | 2017-05-31 | 泉州亿兴电力有限公司 | A kind of current measuring device |
-
2017
- 2017-07-07 CN CN201710551833.0A patent/CN107192868A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130042718A1 (en) * | 2011-08-15 | 2013-02-21 | GM Global Technology Operations LLC | Conformable shape memory article |
| CN105406413A (en) * | 2015-11-24 | 2016-03-16 | 国网山东乳山市供电公司 | Network cable molding and fixing device |
| CN205842331U (en) * | 2016-06-06 | 2016-12-28 | 安徽一路明光电科技有限公司 | A kind of deformable LED lamp bar |
| CN206208974U (en) * | 2016-11-28 | 2017-05-31 | 泉州亿兴电力有限公司 | A kind of current measuring device |
| CN106696016A (en) * | 2016-12-14 | 2017-05-24 | 韦超彬 | Bamboo basket shaping frame and bamboo basket shaping method adopting bamboo basket shaping frame |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152540A (en) * | 2017-12-26 | 2018-06-12 | 国家电网公司 | Pincerlike meter clamp extender, pincerlike meter assembly and current measuring method |
| EP3862761A1 (en) * | 2020-02-05 | 2021-08-11 | Fluke Corporation | Sensor probe with clamp having adjustable interior region for non-contact electrical measurement |
| US11513140B2 (en) | 2020-02-05 | 2022-11-29 | Fluke Corporation | Sensor probe with clamp having adjustable interior region for non-contact electrical measurement |
| US11662368B2 (en) | 2020-02-05 | 2023-05-30 | Fluke Corporation | Non-contact voltage measurement with adjustable size Rogowski coil |
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