Wavelength Scanning Mechanism Design and Accuracy Analysis of Infrared Double Grating Spectrometer

Dian-sheng, 曹佃生 Cao; Guanyu, 林冠宇 Lin; Baopeng, 闻宝朋 Wen; Xutang, 刘旭堂 Liu

doi:10.3788/cjl201744.0511002

Cited by 4 publications

(2 citation statements)

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“…In the area-array search and tracking integrated equipment, the high-frequency vibration of the compensation mirror was used to compensate the scanning image motion. The mechanical accuracy of the compensation mechanism was converted into optical imaging index after analysis and calculation [12].…”

Section: Introductionmentioning

confidence: 99%

Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor

Zhou,

DING,

et al. 2023

Third International Computing Imaging Conference (CITA 2023)

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According to the image motion generated in search imaging of the area-array search and tracking integrated equipment, this paper designs a high-frequency image motion compensation mechanism based on swing-angle voice coil motor, in which the high-frequency vibration of the compensating mirror is used to compensate the image motion. Based on the advantages of simple structure and control, high-frequency commutation and high-precision, a high-frequency image motion compensation mechanism driven by the swing-angle voice coil motor is proposed. This article analyses the rotary torque of the high-frequency image motion compensation mechanism, designs labyrinth seal for slewing bearing according to the requirements of high and low temperature, the life of bearing is verified by analyzing the equivalent load of bearing. The mechanical analysis of vibrating mirror is carried out by finite element simulation, and the error analysis of the rotating shaft system is also carried out, the maximum position error of image motion compensation is 13.81". The optical compensation aperture of the high-frequency image motion compensation mechanism is 60 mm. When the compensation angle is 0.3°, the frequency of vibration compensation reaches 50 Hz. The seal and mechanical requirements are considered in the structure design, and the high-frequency image motion compensation mechanism is verified by assembly and debugging.

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Section: Introductionmentioning

confidence: 99%

Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor

Zhou,

DING,

et al. 2023

Third International Computing Imaging Conference (CITA 2023)

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“…The beamsplitters are key optical elements and have been widely used in the field of interferometers [1], optical measurement [2,3], optical crystal fabrication [4], dense wavelength division multiplexing [5] and so on [6][7][8]. Especially, the beam splitters with high efficiency and good uniformity are needed in the field of infrared band photoelectric technology, such as infrared measurement, infrared spectrometer and so on [9]. Low cost and high efficiency make the gratings become the important parts of these technologies.…”

Section: Introductionmentioning

confidence: 99%

1*5 transmission grating splitter with triangular structure based on MgF₂

et al. 2020

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A 1×5 transmission grating splitter with triangular structure under normal incidence at the wavelength of 1550 nm is presented in this paper. The MgF 2 crystals are widely used in the infrared band. The whole transmitted diffraction efficiency of the gratings is over 99% with uniformity better than 0.3%. The designed parameters of this triangular grating are employed by the rigorous coupledwave analysis and the simulated annealing algorithm. This grating has a large tolerance for fabrication with better performance, which should be highly interesting for practical applications.

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Research on Automatic Detection Method of Part Shape Based on Projection Optics and Image Processing

Sun

Wang

et al. 2019

Lecture Notes in Electrical Engineering

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Wavelength Scanning Mechanism Design and Accuracy Analysis of Infrared Double Grating Spectrometer

Cited by 4 publications

References 0 publications

Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor

Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor

1*5 transmission grating splitter with triangular structure based on MgF₂

Research on Automatic Detection Method of Part Shape Based on Projection Optics and Image Processing

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Wavelength Scanning Mechanism Design and Accuracy Analysis of Infrared Double Grating Spectrometer

Cited by 4 publications

References 0 publications

Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor

Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor

1*5 transmission grating splitter with triangular structure based on MgF2

Research on Automatic Detection Method of Part Shape Based on Projection Optics and Image Processing

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Product

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About

1*5 transmission grating splitter with triangular structure based on MgF₂