Manufacturing method of quarter-wave plate for temperature compensation

A temperature compensation and manufacturing method technology, applied in optics, voltage/current isolation, instruments, etc., can solve problems such as poor temperature stability and increased process, so as to improve performance and yield, and achieve stability and consistency.

Active Publication Date: 2020-05-19
BEIJING AUTOMATION CONTROL EQUIP INST
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Problems solved by technology

[0005] Aiming at the defect of poor temperature stability of optical fiber current transformers, domestic and foreign scholars have proposed various temperature compensation schemes. These methods are aimed at local temperature monitoring of optical fiber current transformers, so as to establish a simp

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  • Manufacturing method of quarter-wave plate for temperature compensation
  • Manufacturing method of quarter-wave plate for temperature compensation
  • Manufacturing method of quarter-wave plate for temperature compensation

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[0049] The present invention will be described in detail below with reference to the drawings and specific embodiments:

[0050] The present invention proposes a method for manufacturing a quarter wave plate for temperature compensation of an optical fiber current transformer, including:

[0051] According to the mathematical model of the optical fiber current transformer system, using the complementary characteristics of the temperature performance of the elliptical core fiber used in the quarter wave plate and the Spun fiber used in the sensitive ring, the key parameters in the manufacturing process of the quarter wave plate are optimized Design and provide process plan design according to the optimized design parameters to realize the temperature compensation of the quarter wave plate to the optical fiber current transformer system.

[0052] The optimized design of key parameters in the manufacturing process of the quarter wave plate includes:

[0053] According to the mathematical...

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Abstract

The invention discloses a manufacturing method of a quarter-wave plate for temperature compensation of an optical fiber current transformer, which can realize stability and consistency of a current ratio difference of the optical fiber current transformer in a full-temperature range in a batch production process, reduce a reject ratio of products and ensure long-term working accuracy and stabilityof the optical fiber current transformer. The method comprises the following steps: (1) establishing an optical fiber current transformer mathematical model; (2) measuring phase retardation of an elliptical core optical fiber; and (3) carrying out a quarter-wave plate manufacturing process. The method have advantages that a manufacturing process scheme of the quarter-wave plate is stable and consistent, and the stability and consistency of the current ratio difference of an optical fiber current transformer system in the full-temperature range can be realized so that performance and a yield of the optical fiber current transformer system are improved.

Description

technical field [0001] The invention belongs to a method for manufacturing components in an optical fiber current transformer, in particular to a method for manufacturing a quarter-wave plate used for temperature compensation of an optical fiber current transformer. Background technique [0002] Fiber optic current transformer is a kind of current measuring equipment based on Faraday effect, which has the advantages of good insulation, high reliability and strong anti-electromagnetic interference ability. Compared with traditional electromagnetic current transformer, the measurement range of fiber optic current transformer is Large and wide response frequency, it has obvious advantages in the measurement of DC current, the grid connection of intermittent power supply and the application of UHV AC transmission. Current transformers have irreplaceable status and broad market prospects in the new generation of intelligent substations. [0003] At present, the system structure ...

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Application Information

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IPC IPC(8): G02B27/00G02B5/30G01R15/24
CPCG01R15/24G02B5/3083G02B27/0012
Inventor 王锴冯喆向强韩锐凡杨怿
Owner BEIJING AUTOMATION CONTROL EQUIP INST
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