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Electromagnetic sensor and electromagnetic sensing system

An electromagnetic sensor and electromagnetic sensing technology, applied in electrical equipment current and magnetic field detection, electric power field, can solve problems such as difficult maintenance, low intelligence, low security, etc., achieve high intelligence level, overcome insufficient security , the effect of improving the accuracy

Pending Publication Date: 2020-05-22
河北省机电一体化中试基地有限公司
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  • Description
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electromagnetic sensor and an electromagnetic sensing system to solve the technical problems of low safety, difficult maintenance and low intelligence in the current and magnetic field detection process in the prior art

Method used

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  • Electromagnetic sensor and electromagnetic sensing system
  • Electromagnetic sensor and electromagnetic sensing system

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Embodiment Construction

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art belong to the protection scope of the embodiments of the present invention.

[0043] see figure 1 , figure 1 A connection schematic diagram of an embodiment of an electromagnetic sensor provided by an embodiment of the present invention includes: a light source 1 , an optical switch 2 , a sensing component 3 , an optical fiber delay loop 4 , and a photodetector 5 .

[0044] Wherein, the optical switch 2 is a 2x2 optical switch, on which a first input terminal 2-1, a second input terminal 2-2, a first output terminal 2-3 and a second ...

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Abstract

The invention relates to the field of current detection of electric power and electrical equipment, in particular to an electromagnetic sensor and an electromagnetic sensing system. The electromagnetic sensor comprises a light source, an optical switch, a sensing assembly, an optical fiber delay ring and a photoelectric detector, the optical switch comprises a first input end, a second input end,a first output end and a second output end. The light source is in fiber coupling connection with the first input end; the photoelectric detector is in fiber coupling connection with the first outputend; the sensing assembly and the optical fiber delay ring are connected in series between the second input end and the second output end; the sensing assembly comprises a first optical fiber collimator, a polarizer, a magnetic rotation module and a second optical fiber collimator. And the magnetic rotation module is used for changing the polarization state angle of the light passing through the magnetic rotation module according to change of the surrounding magnetic field. The technical problems that in the prior art, in the current and magnetic field detection process, safety is not high, maintenance is difficult, and intelligence is not high are solved.

Description

technical field [0001] The invention relates to the field of electric power, electrical equipment current and magnetic field detection, in particular to an electromagnetic sensor and an electromagnetic sensing system. Background technique [0002] With the advancement of science and technology and the development of modern cities, the scale of power grids around the world continues to expand, the voltage level and capacity of power systems continue to increase, and power risks increase accordingly. Therefore, the performance requirements of power-related equipment around the world are getting higher and higher. Therefore, it is very important to accurately obtain the current and magnetic field data of equipment components. [0003] Electromagnetic induction current transformer is a traditional instrument for measuring equipment current, but with the increase of grid scale and voltage level, electromagnetic induction current transformer shows more and more deficiencies, such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/24G01R19/00G01R33/032
CPCG01R15/241G01R15/246G01R19/0092G01R33/0322
Inventor 靳晔郝鹏张雷姚鹏辉王勇高林鹤姚朋李欣庞增拴秦亚敏贾英新赵东哲
Owner 河北省机电一体化中试基地有限公司
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