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Optical fiber current sensing device and optical fiber current sensing system

A fiber optic current sensing, fiber optic technology, applied in the direction of measuring current/voltage, measuring device, voltage/current isolation, etc., can solve problems such as application limitations, and achieve the effect of simple and convenient installation process, convenient assembly, and improved polarization performance

Inactive Publication Date: 2014-03-05
XUNDI SCI & TECH HUBEI PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the existing optical fiber current sensor cannot be installed on site with openings, so its application in the fields of metallurgy and chemical industry is limited.

Method used

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  • Optical fiber current sensing device and optical fiber current sensing system
  • Optical fiber current sensing device and optical fiber current sensing system
  • Optical fiber current sensing device and optical fiber current sensing system

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Embodiment Construction

[0036] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Throughout the drawings, the same reference numerals denote the same elements.

[0037] In order to enable the sensing optical fiber to be installed with openings on site, an embodiment of the present invention provides an optical fiber current sensing device for measuring current passing through a conductor. Such as figure 1 As shown, the fiber optic current sensing device includes a sensing fiber 6 and a bracket 10 for installing the sensing fiber. The sensing fiber 6 includes an optical fiber and a flexible protective sheath covering the optical fiber. The bracket 10 includes a first portion and a second portion each having a fiber optic groove. The first part and the second part are detachably connected to form a closed ring structure around the conductor under test, and the fiber groove of the first part and the fiber groove of the second part...

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Abstract

The invention provides an optical fiber current sensing device and an optical fiber current sensing system. The optical fiber current sensing device provided by the invention comprises a sensing optical fiber and a bracket, wherein the sensing optical fiber comprises an optical fiber and a flexible protective sleeve which is sheathed outside the optical fiber; the bracket comprises a first part and a second part which are provided with optical fiber grooves; the first part and the second part can be detachably connected to form a closed ring structure which surrounds a conductor to be detected for a circle; and the optical fiber groove of the first part and the optical fiber groove of the second part form the closed ring which is used for containing the sensing optical fiber. The optical fiber current sensing system provided by the invention comprises the optical fiber current sensing device. The optical fiber current sensing device provided by the invention can be installed in a scene opening to surround the detected current conductor and does not need to cut off the detected current conductor.

Description

technical field [0001] The invention relates to an optical fiber current sensing technology, in particular to an optical fiber current sensing device which can be installed with openings on site and an optical fiber current sensing system comprising the optical fiber current sensing device. Background technique [0002] Current sensors or transformers are important equipment for current detection in the fields of metallurgy, chemical industry, and electric power. Their long-term stability, reliability, and safety are closely related to the safe and stable operation of the power supply system. [0003] Currently, the reported fiber optic current sensors based on the Faraday effect are used in current measurement due to their large measurement range and high precision. This fiber optic current sensor mainly uses Ampere's loop law and Faraday's magneto-optical effect to measure the current of the conductor. According to the law of Ampere's loop, a closed magnetic field will be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00G01R15/24G01K11/32
Inventor 郭嘉昕
Owner XUNDI SCI & TECH HUBEI PROV
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