Device and method for measuring atmospheric absorption coefficient based on phase perturbation

A technique of atmospheric absorption and coefficient, applied in measurement devices, material analysis by optical means, instruments, etc., can solve problems such as limiting measurement accuracy, volatilization, and inestimable effect.
CN102128792AInactive Publication Date: 2011-07-20ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
3 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Publication Date
2011-07-20
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a device and method for measuring an atmospheric absorption coefficient based on phase perturbation. The device comprises a mechanical compensation zoom system, a sample storage pipe, an optical fiber interferometer and an extinction tube, wherein the sample storage pipe also comprises a sample inlet and a sample outlet. In the invention, a relation between the phase perturbation and the atmospheric absorption coefficient is established, the effects of dispersion and absorption to the atmosphere are effectively separated, the atmospheric absorption coefficients corresponding to parallel laser beams with different wavelengths can be measured in a non-contact way while the original properties of the atmosphere are maintained, the evolution law of the atmospheric absorption coefficient along with time can be detected, and the method has the characteristics of high detection speed, high sensitivity and simple operation.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a new method for measuring the atmospheric absorption coefficient in real time, which can effectively measure the atmospheric absorption coefficient of light beams corresponding to different wavelengths, and can observe the change rule of the atmospheric absorption coefficient with time. Background technique

[0002] The existence of the atmosphere directly affects the propagation of light, resulting in the attenuation of light in the atmosphere. The attenuation of light by the atmosphere is composed of two parts: scattering and absorption. Scattering changes the spatial distribution of light, and its effect is to change the radiation reaching the surface, thereby increasing the complexity of the spatial distribution of radiant energy. Absorption reduces the radiation reaching the surface on the one hand. Energy, on the other hand, the absorbed radiation energy is released immediately, heating the atmosphere, directly leading t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More