CN112526189B - Flexible rogowski coil current sensor - Google Patents

Flexible rogowski coil current sensor Download PDF

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Publication number
CN112526189B
CN112526189B CN202011536311.1A CN202011536311A CN112526189B CN 112526189 B CN112526189 B CN 112526189B CN 202011536311 A CN202011536311 A CN 202011536311A CN 112526189 B CN112526189 B CN 112526189B
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China
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block
flexible
sensor body
limiting
sleeve
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CN112526189A (en
Inventor
梁汉祥
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Wuhan Tian Tian Automatic Control Technology Co ltd
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Wuhan Tian Tian Automatic Control Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/181Adaptations 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

The invention discloses a flexible rogowski coil current sensor, which belongs to the technical field of current sensors and comprises the following technical scheme: the sensor comprises a sensor body, wherein the sensor body is composed of a flexible framework, a coil, a waterproof layer and a sleeve, the coil is uniformly wound on the flexible framework, the waterproof layer is wrapped outside the coil, the sleeve is wrapped outside the waterproof layer, a first fixing block is fixedly arranged at one end of the sensor body, a second fixing block is fixedly arranged at one end, far away from the first fixing block, of the sensor body, a connecting structure is arranged on the sensor body, and comprises a first connecting block, and the beneficial effects of the sensor are that: the first connecting block is inserted into the connecting groove and is fixedly connected with the second connecting block, the position of the movable fixing sleeve on the sensor body is adjusted to a proper position by adjusting the movement of the first bolt, the upper jacket and the lower jacket are clamped by the first bolt, and the movable fixing sleeve is fixedly connected with the sensor body.

Description

Flexible rogowski coil current sensor
Technical Field
The invention relates to the technical field of current sensors, in particular to a flexible rogowski coil current sensor.
Background
The current of the rogowski coil has the characteristics of real-time measurement, high response speed, no saturation and almost no phase error, so that the rogowski coil can be applied to the field of power control, and the current of the rogowski coil is mostly arranged on a cable.
The prior art has the following defects: the current sensor cannot be adjusted in size when being connected with a cable, the current sensor is required to be fixedly connected with the cable by virtue of a rope, the current sensor is inconvenient to install, the operation is troublesome, the resource is wasted, and the working efficiency is reduced.
Therefore, it is necessary to invent a flexible rogowski coil current sensor.
Disclosure of Invention
Therefore, the invention provides a flexible rogowski coil current sensor, which is fixedly connected with a second connecting block through a first connecting block inserted into a connecting groove, the position of a movable fixed sleeve on a sensor body is adjusted to a proper position by adjusting the movement of a first bolt, the upper clamping sleeve and the lower clamping sleeve are clamped by the first bolt, and the movable fixed sleeve is fixedly connected with the sensor body so as to solve the problem that the device cannot be fixedly connected with a cable in size adjustment.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a flexible rogowski coil current sensor, includes the sensor body, the sensor body comprises flexible skeleton, coil, waterproof layer, sleeve pipe, evenly twine on the flexible skeleton has the coil, the coil parcel has the waterproof layer outward, the parcel has the sleeve pipe outward of waterproof layer.
The sensor is characterized in that a first fixed block is fixedly arranged at one end of the sensor body, a second fixed block is fixedly arranged at one end of the sensor body away from the first fixed block, a connecting structure is arranged on the sensor body and comprises a first connecting block, a fourth round hole is formed in the first connecting block, first limiting blocks are fixedly arranged on two sides of the first connecting block, a second limiting block is fixedly arranged on one side of the first limiting block, a movable fixed sleeve is connected to the sensor body and comprises a lower jacket, an upper jacket is arranged above the lower jacket, a fourth fixed block is fixedly arranged on one side of the lower jacket, a third fixed block is fixedly arranged at one side of the upper jacket, one end of the upper jacket is movably connected with the lower jacket, a second connecting block is fixedly connected to one end of the lower jacket, a connecting groove is formed in the second connecting block, first limiting grooves are formed in two sides of the connecting groove, a second limiting groove is formed in one side of the first limiting groove, a third connecting block is fixedly arranged on the second connecting block, a fourth round hole is fixedly arranged on one side of the second jacket, and a spring is fixedly arranged on the third connecting block.
Preferably, the spring is far away from and fixedly connected with the upper jacket and the lower jacket, a fixing plate is fixedly arranged at one end of the spring, an arc-shaped groove is formed in the fixing plate, and a second chamfer is formed in the corner of the arc-shaped groove and the corner of the fixing plate.
Preferably, the first connecting block corresponds to the connecting groove, the first limiting block and the second limiting block correspond to the first limiting groove and the second limiting groove respectively, and the third round hole corresponds to the fourth round hole.
Preferably, the flexible skeleton comprises a flexible aluminum skeleton, and the coils are uniformly wound on the flexible aluminum skeleton.
Preferably, the third fixing block is provided with a first round hole, the fourth fixing block is provided with a second round hole, and a first bolt is fixedly arranged in the first round hole.
Preferably, the first limiting block and the second limiting block are both provided with chamfers.
Preferably, the flexible skeleton further comprises a flexible copper skeleton, and the rings are uniformly wound on the flexible copper skeleton.
Preferably, the number of the connecting grooves formed in the second connecting block is two, the number of the first limiting grooves formed in the connecting grooves is two, and the number of the second limiting grooves formed in the connecting grooves is four.
Preferably, the first limiting blocks are two, and the second limiting blocks are four.
The beneficial effects of the invention are as follows:
1. according to the invention, the first connecting block is inserted into the connecting groove and is fixedly connected with the second connecting block through the second bolt, so that the second fixed block is fixedly connected with the second connecting block through the first connecting block, the position of the movable fixed sleeve on the sensor body is adjusted to a proper position by adjusting the movement of the first bolt, the upper jacket and the lower jacket are clamped by the first bolt, the movable fixed sleeve is fixedly connected with the sensor body, the size of a circle between the upper second fixed block of the sensor body and the fixed connection of the movable fixed sleeve can be adjusted according to actual conditions, the fixed connection with a cable is convenient, and the use is convenient;
2. according to the invention, the first limiting block and the second limiting block are fixedly arranged on the first connecting block, the first limiting groove and the second limiting groove are formed in the connecting groove, and the first limiting block and the second limiting block respectively correspond to the first limiting groove and the second limiting groove, so that the fixing is more stable and the offset is avoided;
3. according to the invention, the springs are fixedly arranged in the upper jacket and the lower jacket, so that the upper jacket and the lower jacket are clamped by the first bolt and are fixedly connected with the sensor body, the sensor body clamp is not damaged, and the service life is prolonged;
4. according to the invention, the spring is far away from the fixed plate fixedly arranged at one end connected with the upper jacket and the lower jacket, the arc-shaped groove is formed in the fixed plate, the arc-shaped groove is formed in the corner of the fixed plate, the second chamfer is formed between the arc-shaped groove and the corner of the fixed plate, the sensor body is better and more firmly fixed through the arc-shaped groove, and the second chamfer is formed in the corner of the arc-shaped groove and the corner of the fixed plate, so that the sensor body is prevented from being scratched by the corner of the arc-shaped groove and the corner of the fixed plate, and the product is prevented from being damaged.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a connection diagram of a first connection block and a second connection block provided by the present invention.
Fig. 3 is a side view of the movable fixing sleeve connection provided by the invention.
Fig. 4 is a side view of a first connector block provided by the present invention.
Fig. 5 is an enlarged view of fig. 1A provided by the present invention.
Fig. 6 is an enlarged view of fig. 1B provided by the present invention.
Fig. 7 is a cross-sectional view of a sensor body provided by the present invention.
Fig. 8 is an enlarged view of fig. 3 at C provided by the present invention.
Fig. 9 is a flexible skeleton diagram of example 2 provided by the present invention.
In the figure: the sensor body 1, the flexible skeleton 11, the flexible aluminum skeleton 111, the flexible copper skeleton 112, the coil 12, the waterproof layer 13, the sleeve 15, the first fixed block 16, the second fixed block 17, the connection structure 2, the first connection block 21, the first limiting block 211, the second limiting block 212, the chamfer 213, the fourth round hole 214, the movable fixing sleeve 22, the upper jacket 221, the lower jacket 222, the spring 223, the fixed plate 2231, the arc-shaped groove 2232, the second chamfer 2233, the third fixed block 224, the fourth fixed block 225, the first round hole 226, the second round hole 227, the first bolt 228, the second connection block 23, the connection groove 231, the first limiting groove 232, the second limiting groove 233, the third round hole 234, and the second bolt 235.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Embodiment 1, refer to fig. 1-8, the flexible rogowski coil current sensor provided by the invention comprises a sensor body 1, wherein the sensor body 1 is composed of a flexible framework 11, a coil 12, a waterproof layer 13 and a sleeve 15, the coil 12 is uniformly wound on the flexible framework 11, the waterproof layer 13 is wrapped outside the coil 12, the sleeve 15 is wrapped outside the waterproof layer 13, and the service life of the device is prevented from being influenced by water inflow through the waterproof layer 13.
A first fixed block 16 is fixedly arranged at one end of the sensor body 1, a second fixed block 17 is fixedly arranged at one end of the sensor body 1 far away from the first fixed block 16, a connecting structure 2 is arranged on the sensor body 1, the connecting structure 2 comprises a first connecting block 21, a fourth round hole 214 is formed in the first connecting block 21, a first limiting block 211 is fixedly arranged at two sides on the first connecting block 21, a second limiting block 212 is fixedly arranged at one side of the first limiting block 211, a movable fixed sleeve 22 is connected on the sensor body 1, the movable fixed sleeve 22 comprises a lower clamping sleeve 222, an upper clamping sleeve 221 is arranged above the lower clamping sleeve 222, a fourth fixed block 225 is fixedly arranged at one side of the lower clamping sleeve 222, a third fixed block 224 is fixedly arranged at one side of the upper clamping sleeve 221, one end far away from the third fixed block 224 is movably connected with the lower clamping sleeve 222, the lower jacket 222 is fixedly connected with a second connecting block 23 at one end far away from the upper jacket 221, a connecting groove 231 is formed in the second connecting block 23, a first limit groove 232 is formed in each of two sides of the connecting groove 231, a second limit groove 233 is formed in one side of the first limit groove 232, a third round hole 234 is formed in the second connecting block 23, a second bolt 235 is fixedly arranged in the third round hole 234, springs 223 are fixedly arranged on the upper jacket 221 and the lower jacket 222, the connecting groove 231 is fixedly connected with the second connecting block 23 through the second bolt 235 after the first connecting block 21 is inserted into the connecting groove 231, the second fixing block 17 is fixedly connected with the second connecting block 23 through the first connecting block 21, the position of the movable fixing sleeve 22 on the sensor body 1 is adjusted to a proper position by adjusting the first bolt 228, the upper jacket 221 and the lower jacket 222 are clamped by the first bolt 228, the movable fixing sleeve 22 is fixedly connected with the sensor body 1, the size of a circle between the upper second fixing block 17 of the sensor body 1 and the movable fixing sleeve 22 which are fixedly connected can be adjusted according to actual conditions, and the upper jacket 221 and the lower jacket 222 are clamped by the first bolts 228 through the springs 223 so as not to damage the sensor body 1 when fixedly connected with the sensor body 1, and the service life is prolonged.
Further, the spring 223 is far away from and fixedly connected with the upper jacket 221 and the lower jacket 222, a fixing plate 2231 is fixedly arranged at one end of the fixing plate 2231, an arc-shaped groove 2232 is formed in the fixing plate 2231, a second chamfer 2233 is formed in the corner of the arc-shaped groove 2232 and the fixing plate 2231, the fixing is firmer through the arc-shaped groove 2232 and the sensor body 1, and the second chamfer 2233 is formed in the corner of the arc-shaped groove 2232 and the fixing plate 2231, so that the sensor body 1 is prevented from being scratched by the corner of the arc-shaped groove 2232 and the fixing plate 2231, and product damage is avoided.
Further, the first connecting block 21 corresponds to the connecting slot 231, the first limiting block 211 and the second limiting block 212 correspond to the first limiting slot 232 and the second limiting slot 233, respectively, and the third circular hole 234 corresponds to the fourth circular hole 214, so that the fixing is more stable and no offset occurs.
Further, the flexible skeleton 11 includes a flexible aluminum skeleton 111, the coil 12 is uniformly wound on the flexible aluminum skeleton 111, the flexible aluminum skeleton 111 is made of aluminum, the toughness is Gao Naigao ℃, the sensor body 1 is reinforced, the manufacturing cost is low, and the service life is prolonged.
Further, a first round hole 226 is formed in the third fixing block 224, a second round hole 227 is formed in the fourth fixing block 225, and a first bolt 228 is fixedly installed in the first round hole 226.
Further, the first limiting block 211 and the second limiting block 212 are provided with chamfers 213, and scratches during installation are avoided through the chamfers 213, so that potential safety hazards are eliminated in advance.
Further, the number of the connecting grooves 231 formed in the second connecting block 23 is two, the number of the first limit grooves 232 formed in the connecting grooves 231 is two, and the number of the second limit grooves 233 formed in the connecting grooves 231 is four.
Further, two first stoppers 211 are provided, and four second stoppers 212 are provided.
The application process of the invention is as follows: when the flexible electric sensor is used, the coil 12 and the flexible aluminum framework 111 are wound, the waterproof layer 13 is wrapped outside the coil 12, the waterproof layer 13 is wrapped through the sleeve 15 to form the sensor body 1, the first fixing block 16 and the second fixing block 17 are respectively and fixedly arranged at two ends of the sensor body 1, the first connecting block 21 is fixedly arranged on the second fixing block 17, the first limiting block 211 is fixedly arranged at two sides of the first connecting block 21, the second limiting blocks 212 are fixedly arranged at two sides of the second connecting block, one end of the upper jacket 221 and one end of the lower jacket 222 on the movable fixing sleeve 22 are fixedly connected through the first bolt 228, the other end of the upper jacket 222 is movably connected with the sensor body 1, the connecting groove 231 is formed in the second connecting block 23, the first limiting groove 232 and the second limiting groove 233 are formed in the connecting groove 231, the first limiting block 211 and the second limiting block 212 are respectively and fixedly arranged with the second limiting groove 232 and the second limiting groove 233, the first connecting block 21 and the second connecting block 23 are fixedly arranged through the second bolt 235, the first limiting block 211 is prevented from being offset, the cable is fixedly arranged at two ends of the first connecting block 21 through the sensor body 1, one end of the upper jacket 221 and the second connecting block 21 is fixedly connected with the second connecting block 23 through the second bolt 23, the second connecting block 23 is fixedly connected with the arc-shaped sleeve 2, the arc-shaped electric sensor body 1 is fixedly connected with the arc-shaped sensor body 1, and the arc-shaped electric sensor body 1 is fixedly connected with the arc-shaped body 1 and the arc-shaped connecting sleeve 2 is conveniently and fixedly connected with the upper jacket 1 through the second connecting sleeve 2.
In embodiment 2, referring to fig. 9, the flexible rogowski coil current sensor provided by the invention further comprises a flexible copper skeleton 112, the coil 12 is uniformly wound on the flexible copper skeleton 112, the flexible copper skeleton 112 is made of copper, the toughness is Gao Naigao ℃, the strength of the sensor body 1 is enhanced, and the service life is prolonged.
The application process of the invention is as follows: when the flexible copper frame is used, the coil 12 and the flexible copper frame 112 are wound, the waterproof layer 13 is wrapped outside the coil 12, the waterproof layer 13 is wrapped through the sleeve 15 to form the sensor body 1, the first fixing block 16 and the second fixing block 17 are respectively and fixedly arranged at two ends of the sensor body 1, the first connecting block 21 is fixedly arranged on the second fixing block 17, the first limiting block 211 is fixedly arranged at two sides of the first connecting block 21, the second limiting blocks 212 are fixedly arranged at two sides of the second connecting block, one end of the upper jacket 221 and one end of the lower jacket 222 on the movable fixing sleeve 22 are fixedly connected through the first bolt 228, the other end of the upper jacket 222 is movably connected with the sensor body 1, the connecting groove 231 is formed in the second connecting block 23, the first limiting groove 232 and the second limiting groove 233 are formed in the connecting groove 231, the first limiting block 211 and the second limiting block 212 are respectively and fixedly arranged with the first limiting groove 232 and the second limiting groove 233, the first connecting block 23 through the second bolt 235, the cable is prevented from being offset, the cable is fixedly arranged at two ends of the sensor body 1 through the second bolt 235, the two ends of the cable is fixedly connected with the second connecting block 23 through the first connecting block 21 and the second connecting block 23, the second jacket 23 is fixedly connected with the arc-shaped sleeve 2, the arc-shaped sensor body 1 is fixedly connected with the arc-shaped sensor body 1, the arc-shaped sensor body 1 is conveniently and firmly and the arc-shaped sensor body is fixedly connected with the arc-shaped sensor body 1 through the second connecting sleeve 23 and the second connecting sleeve 23.
The above description is of the preferred embodiments of the present invention, and any person skilled in the art may modify the present invention or make modifications to the present invention with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present invention falls within the scope of the protection claimed by the present invention.

Claims (9)

1. A flexible rogowski coil current sensor comprising a sensor body (1), characterized in that: the sensor body (1) is composed of a flexible framework (11), a coil (12), a waterproof layer (13) and a sleeve (15), wherein the coil (12) is uniformly wound on the flexible framework (11), the waterproof layer (13) is wrapped outside the coil (12), and the sleeve (15) is wrapped outside the waterproof layer (13);
the sensor comprises a sensor body (1), a first fixed block (16) is fixedly arranged at one end of the sensor body (1), a second fixed block (17) is fixedly arranged at one end of the sensor body (1) far away from the first fixed block (16), a connecting structure (2) is arranged on the sensor body (1), the connecting structure (2) comprises a first connecting block (21), a fourth round hole (214) is formed in the first connecting block (21), a first limiting block (211) is fixedly arranged at two sides of the first connecting block (21), a second limiting block (212) is fixedly arranged at one side of the first limiting block (211), a movable fixed sleeve (22) is connected to the sensor body (1), the movable fixed sleeve (22) comprises a lower clamping sleeve (222), an upper clamping sleeve (221) is arranged above the lower clamping sleeve (222), a fourth fixed block (225) is fixedly arranged at one side of the lower clamping sleeve (222), a third fixed block (224) is arranged at one side of the upper clamping sleeve (221), the upper clamping sleeve (221) is far away from the third fixed block (224) and is fixedly arranged at one end of the lower clamping sleeve (222) far away from the first connecting block (23), a connecting block (23) is movably connected with the second clamping sleeve (23), the connecting groove (231) both sides have all been seted up first spacing groove (232), second spacing groove (233) have been seted up to first spacing groove (232) one side, third round hole (234) have been seted up on second connecting block (23), fixed mounting has second bolt (235) in third round hole (234), all fixed mounting has spring (223) on upper jacket (221), lower jacket (222).
2. A flexible rogowski coil current sensor according to claim 1, characterized in that: the spring (223) is far away from and fixedly provided with a fixed plate (2231) at one end connected with the upper jacket (221) and the lower jacket (222), an arc-shaped groove (2232) is formed in the fixed plate (2231), and a second chamfer (2233) is formed at the corner of the arc-shaped groove (2232) and the fixed plate (2231).
3. A flexible rogowski coil current sensor according to claim 1, characterized in that: the first connecting block (21) corresponds to the connecting groove (231), the first limiting block (211) and the second limiting block (212) correspond to the first limiting groove (232) and the second limiting groove (233) respectively, and the third round hole (234) corresponds to the fourth round hole (214).
4. A flexible rogowski coil current sensor according to claim 1, characterized in that: the flexible framework (11) comprises a flexible aluminum framework (111), and the coil (12) is uniformly wound on the flexible aluminum framework (111).
5. A flexible rogowski coil current sensor according to claim 1, characterized in that: the third fixing block (224) is provided with a first round hole (226), the fourth fixing block (225) is provided with a second round hole (227), and a first bolt (228) is fixedly arranged in the first round hole (226).
6. A flexible rogowski coil current sensor according to claim 1, characterized in that: the first limiting block (211) and the second limiting block (212) are provided with chamfers (213).
7. A flexible rogowski coil current sensor according to claim 1, characterized in that: the flexible skeleton (11) further comprises a flexible copper skeleton (112), and the rings (12) are uniformly wound on the flexible copper skeleton (112).
8. A flexible rogowski coil current sensor according to claim 1, characterized in that: the two connecting grooves (231) are formed in the second connecting block (23), the two first limiting grooves (232) are formed in the connecting grooves (231), and the four second limiting grooves (233) are formed in the connecting grooves (231).
9. A flexible rogowski coil current sensor according to claim 1, characterized in that: the two first limiting blocks (211) are arranged, and the four second limiting blocks (212) are arranged.
CN202011536311.1A 2020-12-23 2020-12-23 Flexible rogowski coil current sensor Active CN112526189B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011536311.1A CN112526189B (en) 2020-12-23 2020-12-23 Flexible rogowski coil current sensor

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Application Number Priority Date Filing Date Title
CN202011536311.1A CN112526189B (en) 2020-12-23 2020-12-23 Flexible rogowski coil current sensor

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CN112526189A CN112526189A (en) 2021-03-19
CN112526189B true CN112526189B (en) 2024-03-29

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114113830A (en) * 2021-11-02 2022-03-01 国网河北省电力有限公司保定供电分公司 Instrument operating condition detection device

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CN203216974U (en) * 2013-04-18 2013-09-25 成都东方瀚易科技发展有限公司 Rogowski wire coil current sensor
DE202014103953U1 (en) * 2014-08-25 2015-05-11 Phoenix Contact Gmbh & Co. Kg Mounting device for a Rogowski coil
CN109613316A (en) * 2018-11-29 2019-04-12 江阴市星火电子科技有限公司 A kind of high-precision rogowski coil
CN211670060U (en) * 2020-05-07 2020-10-13 武汉天瑞自控技术有限公司 Open type Rogowski coil

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203216974U (en) * 2013-04-18 2013-09-25 成都东方瀚易科技发展有限公司 Rogowski wire coil current sensor
DE202014103953U1 (en) * 2014-08-25 2015-05-11 Phoenix Contact Gmbh & Co. Kg Mounting device for a Rogowski coil
CN109613316A (en) * 2018-11-29 2019-04-12 江阴市星火电子科技有限公司 A kind of high-precision rogowski coil
CN211670060U (en) * 2020-05-07 2020-10-13 武汉天瑞自控技术有限公司 Open type Rogowski coil

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高灵敏度柔性电流传感器中磁芯骨架的研制;成林;徐伟锋;魏杰;吴彪;魏昊焜;卢江平;吕志斌;;智慧电力;20191120(第11期);全文 *

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