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Graphene current sensor

A current sensor, graphene technology, applied in the direction of measuring current/voltage, parts and instruments of electrical measuring instruments, etc.

Active Publication Date: 2020-08-25
北京石墨烯技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a graphene current sensor for the problem of magnetic saturation in traditional electromagnetic transformers

Method used

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Embodiment Construction

[0053] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0054] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" an...

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Abstract

The application relates to a graphene current sensor comprising a sleeve, an induction wire and a detection circuit, wherein the inner side of the sleeve is used to fix the wire under test; the induction wire is disposed outside the sleeve and is used to generate an induced voltage according to an induced current generated by the wire under test; the detection circuit is electrically connected tothe induction wire and is configured to detect the induced voltage generated by the induction wire, and calculate the current of the wire under test according to a preset mapping relationship betweenthe induced voltage and the current of the wire under test, wherein the induction wire is made of a graphene metal composite material. Using induction wires to detect the current of the wire under test does not produce magnetic saturation and expands the application range of graphene current sensors. In addition, the use of graphene metal composite induction wires can improve the strength and conductivity of traditional metal wires, so that the induction wires have the advantages such as low resistance temperature coefficient, good resistance to heat dissipation, and high sensitivity.

Description

technical field [0001] The present application relates to the technical field of graphene, in particular to a graphene current sensor. Background technique [0002] In distribution network, the accuracy and reliability of current measurement is the key to power system monitoring, diagnosis and fault analysis. [0003] However, traditional electromagnetic transformers are prone to core magnetic saturation when measuring large currents, making it difficult to use them in overhead lines between substations and user terminals, which limits the application range of electromagnetic transformers. Contents of the invention [0004] Based on this, it is necessary to provide a graphene current sensor for the problem of magnetic saturation in traditional electromagnetic transformers. [0005] The application provides a graphene current sensor, comprising: [0006] A sleeve, the inner side of the sleeve is used to fix the wire to be tested; [0007] The induction wire is arranged o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00G01R1/04G01R1/20G01R1/30
CPCG01R1/04G01R1/20G01R1/30G01R19/00
Inventor 李学瑞李文博李炯利王旭东
Owner 北京石墨烯技术研究院有限公司
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