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Current magnetic signal extraction sensor

A signal extraction, sensor technology, applied in the direction of measuring current/voltage, instruments, measuring electrical variables, etc.

Pending Publication Date: 2020-03-27
ZHONGKUANG LONGKE ENERGY TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a current magnetic signal extraction sensor, which solves the problem that there is no special device in the market that can effectively extract magnetic field signals and provide a basis for subsequent analysis of the health status of electrical equipment.

Method used

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see Figure 1-7, the embodiment of the present invention provides a technical solution: a current magnetic signal extraction sensor, including a casing 1 and a protective cover 2, the casing 1, the protective cover 2, the fixing block 3, the installation block 8, and the connecting block 9 are all made of plastic materials components, the limit block 20 is made of insulating rubber material components, the front of the housing 1 is fixedly connected to ...

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Abstract

The invention discloses a current magnetostrictive signal extraction sensor, which comprises a shell and a protective cover, the front surface of the shell is fixedly connected with the back surface of the protective cover, and the invention relates to the technical field of current signal extraction. According to the current magnetic signal extraction sensor, a magnetic rod is fixedly connected into the bobbin, and the surface of the bobbin is fixedly connected with a coil, wherein the wire diameter of the coil is 0.1 mm, the number of turns of the coil is 1500t, the inductive reactance of the coil is 30mH+ / -15%, the direct current impedance of the coil is 155ohm+ / -10%, the diameter of the magnetic rod is 10mm, the length of the magnetic rod is 30mm, and mu is equal to 1800+ / -25%. Variousparameters of the sensor coil provided in the scheme are utilized, when the sensor is close to a wire through which current flows, the magnetic field can generate induced voltage at the two ends of the sensor coil, and the form of the voltage and the form of the magnetic field show the same change rule, so that the sensor can effectively extract a magnetic field signal, and a basis is provided for subsequent analysis of the operation health condition of electric equipment.

Description

technical field [0001] The invention relates to the technical field of current signal extraction, in particular to a current magnetic signal extraction sensor. Background technique [0002] Electrical equipment is a general term for generators, transformers, power lines, circuit breakers and other equipment in the power system. The important role played by electricity in our life and production cannot be ignored. It brings us great convenience and becomes our As an important energy source in production and life, the most critical factor for the normal operation and transmission of electricity in a power plant is electrical equipment. When inspecting electrical equipment, it is often necessary to collect some electrical information about electrical equipment while the electrical equipment is in operation. Analyze, for example, current information on power transmission cables of electrical equipment. [0003] For current detection, current sensors or Hall sensors are mainly u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00G01R33/02
CPCG01R19/00G01R33/02
Inventor 赵世纯宋晓胡业林仵宗华李飞龙
Owner ZHONGKUANG LONGKE ENERGY TECH BEIJING
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