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Upper atmosphere airglow blast-temperature imager for atomic frequency discrimination

A high-altitude atmosphere and imager technology, which is used in meteorology, scientific instruments, spectrum surveys, etc., can solve the problems of low FPI transmittance, affect detection sensitivity, and high working environment requirements, and achieve narrow transmission spectral bandwidth, wavelength stability and no drift. , the effect of small detection error

Active Publication Date: 2011-08-31
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] Below in conjunction with accompanying drawing, the present invention will be further described.

[0035] 1. Structure

[0036] Depend on figure 1 It can be seen that the high-altitude atmospheric airglow wind-temperature imager with atomic frequency discrimination consists of receiving telescope 4, optical filter 5, spectroscopic component 6, atomic frequency discrimination component 31 in the center, atomic frequency discrimination components 11 and 21 in the left and right sides, three The imaging lens 12, 22 and 32, and three imaging CCDs 13, 23 and 33 are composed.

[0037] The fourth polarizing prism 61 of receiving telescope 4, optical filter 5 and light-splitting assembly 6 is arranged coaxially successively, and light-splitting assembly 6 is made up of the 4th polarizing prism 61, light-splitting plate 62 and reflector 63, in the transmission of the 4th polarizing prism 61 The beam splitter 62 and the reflector 63 are arranged in sequence in the light directi...

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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 atmospheric detection technology, which can be used for space atmospheric airglow detection. Background technique: [0002] The airglow in the high-altitude atmosphere between 50 and 500 kilometers above the earth is caused by the excitation of molecules and atoms in the atmosphere by solar short-wave ultraviolet radiation. The characteristics of airglow are related to the intensity of solar activity, geomagnetic activity, and the state of the upper atmosphere and ionosphere. closely related. The radiative properties of airglow are an important source of information on the physicochemical processes in the mesosphere, low thermosphere and ionosphere. Airglow detection has become an important means to analyze solar activity-magnetosphere-ionosphere-thermosphere-middle and upper atmosphere energy transmission and conversion, monitor the Earth's upper atmosphere and ionosphere parameters, and is of great significance to spa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28G01W1/02
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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