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FP-based magnetic field intensity sensor and performance test method thereof

A magnetic field sensor and magnetic field strength technology, applied in the size/direction of the magnetic field, using magneto-optical equipment for magnetic field measurement, instruments, etc., to achieve the effects of easy promotion and use, improved accuracy, and shortened test time

Inactive Publication Date: 2018-05-18
BEIJING INFORMATION SCI & TECH UNIV
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  • 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 FP-based magnetic field strength sensor and its performance testing method, which solves the problem of FP testing the periodic magnetic field strength

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  • FP-based magnetic field intensity sensor and performance test method thereof
  • FP-based magnetic field intensity sensor and performance test method thereof
  • FP-based magnetic field intensity sensor and performance test method thereof

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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 1-4 , the present invention provides a technical solution: a magnetic field strength sensor based on FP, including a FP body 1 and a conical tube 2; the FP body 1 is fixed inside the conical tube 2 by a coil spring 3, and the FP body 1 Bonded with the coil spring 3 by epoxy resin; the tail of the tapered pipe 2 runs through the FP pigtail 4, and the connection between the FP pigtail 4 and the tapered pipe 2 is provided with an aerobic resin ...

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Abstract

The invention discloses an FP-based magnetic field intensity sensor, including an FP body and a conical tube. The FP body is fixed inside the conical tube through a spiral spring, and the FP body is bonded to the spiral spring through epoxy resin. An FP tail fiber penetrates the tail of the conical tube, and an oxygen resin plug is arranged at the joint of the FP tail fiber and the conical tube. Amagnetic head is bonded to the end of the conical tube through epoxy resin, and the magnetic head is connected with the end of the FP body away from the FP tail fiber. The invention relates to the technical field of optical fiber sensing. According to the FP-based magnetic field intensity sensor and the performance test method thereof, through the cooperative use of a PC, an ASE light source, anoptical fiber circulator, a spectral analyzer, a connector and a controller, the magnetic field strength test of FP is simpler, the accuracy of test is improved, the test time is shortened, and the FP-based magnetic field intensity sensor is highly practical and easy to popularize and use.

Description

technical field [0001] The invention relates to the technical field of optical fiber sensing, in particular to an FP-based magnetic field intensity sensor and a performance testing method thereof. Background technique [0002] With the continuous improvement and maturity of the manufacturing process of fiber optic micro-nano sensing, the application research of fiber optic micro-nano sensing has been carried out rapidly in various countries in the world. With the gradual display of the excellent characteristics of optical fiber micro-nano sensing, it has been widely studied and applied in the field of sensing. As a new type of optical fiber sensor, fiber optic micro-nano sensor has many unique advantages in addition to the characteristics of optical fiber sensors such as light weight, anti-electromagnetic interference, corrosion resistance, and high temperature resistance: [0003] The interferometric fiber optic sensor can measure the change of the characteristics of the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/032G01R35/00
Inventor 鹿利单祝连庆何巍娄小平董明利孙广开李红
Owner BEIJING INFORMATION SCI & TECH UNIV