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Acousto-optic tunable filter parameter calibration system

A tuned filter and acousto-optic technology, which is applied in the field of acousto-optic tunable filter parameter calibration system, can solve the problems of low calibration accuracy, complicated calibration devices, and low degree of automation, and achieve accurate calibration parameters, The effect of low cost, reduction of operation volume and human error

Inactive Publication Date: 2011-12-14
BEIHANG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide an acousto-optic tunable filter parameter calibration system, to overcome the existing AOTF calibration device complicated and incomplete, calibration accuracy is not high, low degree of automation and other shortcomings, to design a set of Realize automatic, high-precision, multi-parameter calibration AOTF system

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  • Acousto-optic tunable filter parameter calibration system

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Embodiment Construction

[0028] Such as figure 1 As shown, the present invention consists of a control and processing computer 1, a grating monochromator 2, a mercury-argon gas light source 3, an optical path part 15, a precision electric control turntable 10, an AOTF16 to be calibrated, a high-precision radio frequency driver 11, a photomultiplier tube 12, and a CCD Light intensity distribution detector 13, precise electric control translation guide rail 14, optical path part 15 is mainly composed of reflector 4, half mirror 5, Glan Taylor prism 6, collimating lens 7, aperture 8, focusing lens 9 Calibration system of the present invention adopts control and processing computer 1 to control grating monochromator 2 connected with it, precision electric control turntable 10, high-precision radio frequency driver 11 and precision electric control translation guide rail 14, and from photomultiplier tube 12 and the CCD light intensity distribution detector 13 collect data, and then run corresponding data p...

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Abstract

Acousto-optic Tunable Filter (AOTF) parameter calibration system, which consists of control and processing computer, grating monochromator, mercury-argon gas light source, optical path part, precision electronically controlled turntable, high-precision RF driver, photoelectric It consists of multiplier tube, CCD light intensity distribution detector, and precise electronically controlled translation guide rail. The optical path part is mainly composed of reflector, half mirror, Glan Taylor prism, collimating lens, diaphragm and focusing lens. The calibration system of the invention is complete and has high calibration accuracy, and can automatically calibrate parameters such as AOTF beam incident angle, off-axis angle θa, angular aperture δ, wavelength response function, wavelength-frequency tuning relationship, deflection angle β, etc. Index inspection of AOTF products, research on AOTF spectra and imaging characteristics, and also provide technical parameters for the integration of AOTF spectrometers.

Description

technical field [0001] The invention relates to an acousto-optic tunable filter parameter calibration system, which can measure the incident angle of the light beam of the acousto-optic tunable filter (hereinafter referred to as AOTF), the ultrasonic off-axis angle θ a , angular aperture δ, wavelength response function, wavelength-frequency tuning relationship, deflection angle β and other parameters for automatic calibration, suitable for index inspection of AOTF products, research on AOTF spectrum and imaging characteristics, and can also provide technical parameters for the integration of AOTF spectrometers. Background technique [0002] AOTF is made according to the principle of acousto-optic diffraction and has the functions of modulating, deflecting and filtering light. Its working principle is to achieve the purpose of wavelength selection by changing the frequency of electrical signals. AOTF spectrometer is a new type of spectroscopic instrument, which has the charac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
Inventor 赵慧洁周鹏威张颖程宣邢辉
Owner BEIHANG UNIV
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