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Upper atmosphere airglow blast-temperature imager for atomic frequency discrimination

A high-altitude atmosphere and imager technology, applied in meteorology, scientific instruments, using multiple variables to indicate weather conditions, etc., can solve the problems of low FPI transmittance, affecting detection sensitivity, high requirements for working environment, etc., and achieve narrow bandwidth of transmission spectrum , The wavelength is stable without drift, and the detection error is small

Active Publication Date: 2010-07-28
WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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Problems solved by technology

However, FPI is easily affected by factors such as temperature, vibration, and field of view, and has high requirements for the working environment, and the low transmittance of FPI affects the detection sensitivity.

Method used

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  • Upper atmosphere airglow blast-temperature imager for atomic frequency discrimination
  • Upper atmosphere airglow blast-temperature imager for atomic frequency discrimination
  • Upper atmosphere airglow blast-temperature imager for atomic frequency discrimination

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] 1. Structure

[0036] Depend on figure 1 It can be seen that the high-altitude atmospheric airglow temperature imager with atomic frequency discrimination consists of a receiving telescope 4, a filter 5, a beam splitting component 6, a central band atomic frequency discrimination component 31, left and right with atomic frequency discrimination components 11 and 21, three Imaging lenses 12 , 22 and 32 and three imaging CCDs 13 , 23 and 33 are composed.

[0037] The receiving telescope 4, the optical filter 5 and the fourth polarizing prism 61 of the beam splitting assembly 6 are arranged coaxially in turn. The beam splitting assembly 6 is composed of a fourth polarizing prism 61, a beam splitter 62 and a reflecting mirror 63. The beam splitter 62 and the reflector 63 are arranged in order in the light direction, and both the beam splitter 62 and the reflector ...

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Abstract

The invention discloses an upper atmosphere airglow blast-temperature imager for atomic frequency discrimination, which is used for airglow detection of space atmosphere. The imager comprises a receiving telescope (4), an optical filter (5), a spectral component (6), a center-band atomic frequency discrimination component (31), a left and a right side band atomic frequency components (11, 12), three imaging lens (12, 22, 32) and three imaging CCDs (13, 23, 33). The imager allocates the received airglow to a center-band atomic frequency discrimination channel (3) and the left and the right side band automatic frequency discrimination channels (1, 2), obtains the intensities of the full airglow spectrum, the left edge spectrum and the right edge spectrum respectively, and obtains the intensity of the airglow and the distribution of the temperature and the wind field of the atmosphere at the location issuing the airglow simultaneously. The invention has the advantages that multi detection functions are provided, the wave length is stable without drift, the precision of frequency discrimination is high, the detection error is small, and the work is stable and reliable.

Description

Technical field: [0001] The invention relates to space atmosphere detection technology, which can be used for space atmosphere airglow detection. Background technique: [0002] The airglow in the upper atmosphere between 50 and 500 kilometers above the earth is caused by the excitation of molecular atoms in the atmosphere by solar short-wave ultraviolet radiation. The characteristics of airglow are related to solar activity, geomagnetic activity intensity, and the state of the upper atmosphere and ionosphere. closely related. The radiative properties of airglow are an important source of information on physical and chemical processes in the mesosphere, lower thermosphere and ionosphere. Airglow detection has become an important means of analyzing solar activity-magnetosphere-ionosphere-thermosphere-middle and upper atmosphere energy transmission and conversion, monitoring parameters of the earth's upper atmosphere and ionosphere, and is of great significance to space activi...

Claims

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Application Information

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IPC IPC(8): G01W1/02
Inventor 李发泉杨勇程学武杨国韬王继红林兆祥戴阳林鑫李勇杰龚顺生
Owner WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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