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Measurement method based on spectral measurement system for Verdet coefficient of rare earth glass

A measurement method and spectral measurement technology, which are applied in the measurement field based on a rare earth glass Feld coefficient spectral measurement system, can solve problems such as low accuracy, and achieve the effects of improving measurement accuracy, measurement convenience, and measurement sensitivity.

Inactive Publication Date: 2019-02-12
润桐(苏州)技术服务有限公司
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem of low accuracy existing in the prior art

Method used

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  • Measurement method based on spectral measurement system for Verdet coefficient of rare earth glass
  • Measurement method based on spectral measurement system for Verdet coefficient of rare earth glass
  • Measurement method based on spectral measurement system for Verdet coefficient of rare earth glass

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Embodiment 1

[0048] This embodiment provides a spectroscopic measurement system for the Feld coefficient of rare earth glass, such as figure 1 , the system includes a linearly polarized light generator, a rare earth glass 104 to be measured corresponding to the position parallel to the linearly polarized light generator, a birefringent crystal 105 located to be parallel to the rare earth glass 104 to be measured, and a birefringent crystal 105 located parallel to the birefringent crystal 105 The polarizer 106 corresponding to the position, the self-focusing lens 107 corresponding to the parallel position of the polarizer 106, the spectrometer 108 connected to the self-focusing lens 107, and the host computer connected to the spectrometer 108; the rare earth glass 104 to be measured The two ends of the variable-pitch electromagnet 201 are respectively provided on both sides, and the variable-pitch electromagnet 201 is controlled by a DC power supply 202, and a magnetic field strength measuri...

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Abstract

The invention relates to a measurement method based on a spectral measurement system for a Verdet coefficient of rare earth glass, and mainly solves the technical problems of low measurement sensitivity and low measurement accuracy in the prior art. The system comprises a linearly polarized light generator, the to-be-measured rare earth glass, a birefringent crystal, a polarization analyzer, a self-focusing lens, a spectrograph connected with the self-focusing lens, and an upper computer connected with the spectrograph; two end poles of a variable-interval electromagnet are arranged on the twosides of the to-be-measured rare earth glass respectively; the variable-interval electromagnet is controlled by a direct-current power supply; and a magnetic field intensity measuring device is further arranged between the two end poles of the variable-interval electromagnet. The method better solves the problems and can be applied to the measurement of the Verdet coefficient of the rare earth glass.

Description

technical field [0001] The invention relates to the field of measuring the Feld constant of magneto-optical materials, in particular to a measuring method based on a rare earth glass Feld coefficient spectral measuring system. Background technique [0002] Rare earth-doped glass has important applications in laser gyroscopes and fiber optic current transformers due to its unique magneto-optical properties. In these applications, the Verdet constant of the rare earth-doped glass material is an important parameter affecting its performance, which directly determines the measurement sensitivity of the sensor. [0003] At present, the existing methods for measuring the Verdet constant of magneto-optical materials include the polarization analysis method, the difference method of two optical paths, and optical interference. The invention proposes a new measurement system and method for the Verdet constant based on polarization spectrum interference. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/45
CPCG01N21/45
Inventor 卢平
Owner 润桐(苏州)技术服务有限公司
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