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

A measurement method and measurement system technology, which are applied to measurement devices, material analysis by optical means, instruments, etc., can solve the problems of low measurement sensitivity and low accuracy, and achieve improved measurement sensitivity, improved measurement accuracy, and improved measurement. The effect of convenience

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 measurement sensitivity and low accuracy existing in the prior art

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

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] This embodiment provides a Verdet constant measurement system based on polarization interference, 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 that the position is correspondingly arranged, the Michelson interferometer that is positioned at the corresponding parallel position of t...

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Abstract

The invention relates to a measurement method based on a measurement system for a Verdet constant 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 Michelson interferometer, a convergent lens connected with the Michelson interferometer, a data acquisition card connected with the convergent lens, and an upper computer connected with the data acquisition card; the Michelson interferometer is controlled by the upper computer; two end poles of a variable-interval electromagnet are arranged on the two sides of the to-be-measured rare earth glass respectively; the variable-interval electromagnet is controlled by a direct-current power supply; a magnetic field intensity measuring device is further arranged between the two end poles of the variable-interval electromagnet; the upper computer is provided with a storage medium; and the storage medium stores an interferometer control program and a rare earth glass Verdet coefficient calculation program. By adopting the system, the problems are solved; and the method can be applied to the measurement of the Verdet constant of a magneto-optic material.

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 constant 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 rare earth glass Verdet constant measurement system and measurement method. Contents of the invention [0004] The technical problem to be so...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/23
CPCG01N21/23G01N2021/218
Inventor 卢平
Owner 润桐(苏州)技术服务有限公司
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