Long-wave infrared Doppler differential interferometer assembly supporting structure
A differential interference, long-wave infrared technology, applied in measuring instrument components, interferometric spectroscopy, instruments, etc., can solve the problems of micro-stress, low thermal deformation, thermal stress, etc., so as to reduce thermal stress, facilitate disassembly, and facilitate post-installation work. Effect
Pending Publication Date: 2019-10-25
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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[0005] In order to solve the problems of micro-stress, low thermal deformation and thermal stress of the long-wave infrared Doppler differential interferometer components, the present invention proposes a long-wave infrared Doppler differential interferometer component support structure, which can effectively reduce the impact of temperature changes on interference fringes and inversion accuracy Impact
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[0037] Below in conjunction with accompanying drawing and specific implementation, the present invention will be further described:
[0038] Such as figure 1 As shown, it is an optical schematic diagram of a long-wave infrared Doppler differential interferometer assembly, including a left grating 1, a left field-of-view prism 2, a beam splitter 3, a compensation plate 4, a right field-of-view prism 5 and a right grating 6.
[0039] Such as Figure 2 to Figure 3 As shown, the supporting structure of the long-wave infrared Doppler differential interferometer assembly in this embodiment includes the interferometer right bracket 16, the interferometer left bracket 7, the right field-of-view prism interval 15, the left field-of-view prism interval 8, and the right grating interval 14. The left grating spacer 9, the right grating substrate 13, the left grating substrate 10, the right gland 12, the left gland 11 and the beam splitter 17 are all made of duralumin 2Al2.
[0040] Such a...
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The invention provides a long-wave infrared Doppler differential interferometer assembly supporting structure, which solves the problems of micro-stress, low-thermal deformation, thermal stress and the like of a long-wave infrared Doppler differential interferometer assembly. Optical components of each portion can adjust positional relationships such as angles or intervals by means of an arrangedmicro-adjustment structure, and optical components in a stack arm are fixed in an axial integrated elastic compressing manner, thus the condition that the optical components in the stack arm can deform freely to reduce thermal stress when the temperature changes is fully ensured, and the optical components has good temperature adaptability. By adopting the split design idea, the interferometer assembly optical components are divided into left and right stack arms which are installed in an interferometer left bracket and an interferometer right bracket respectively; and each individual assemblyis designed separately and finally assembled and designed according to optical position requirements, the design idea is clear, and the later assembly and debugging are convenient.
Description
technical field [0001] The invention belongs to a support structure, in particular to a support structure of a long-wave infrared Doppler differential interferometer component. Background technique [0002] Wind field detection in the middle and upper atmosphere is an important means to characterize the atmospheric environment and atmospheric dynamics, and it is of great significance for accurate weather forecasting and the smooth progress of the aerospace industry. The Doppler differential interferometry technology is based on the Michelson interferometry technology, which is improved on the basis of the spatial heterodyne interferometry technology, and the wind speed and other information are obtained by reversing the phase of the interference fringes through Fourier transform. It has developed rapidly in recent years and has become a hot spot in passive wind field detection technology. As the application spectral range of the Doppler differential interferometer, the long...
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Login to View More IPC IPC(8): G01D11/30G01P5/26G01N21/45G01J3/45
CPCG01D11/30G01P5/26G01N21/45G01J3/45
Inventor 张兆会秦阳帆李勇畅晨光武俊强白清兰冯玉涛
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI