Cooperative use method of two-way interferogram of time-modulated Fourier transform spectrometer
A technology of Fourier transform and time modulation, which is applied in the fields of interference spectroscopy and spectrum investigation, etc., to achieve the effect of simple implementation, elimination of difference effects, and coordinated use
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[0016] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.
[0017] The brief introduction of theoretical analysis basis of the present invention is as follows: for the time-modulated Fourier transform spectrometer, in the process of reciprocating operation of the interferometer, the two-way (forward and reverse) interferograms are acquired successively, and the time difference is very small, so The instrument state of the spectrometer itself can be considered unchanged, and the zero optical path difference position point of the two-way interferogram should correspond to the same position. In fact, due to the influence of the sampling direction, sampling position, and zero optical path difference offset corresponding to the two-way interferogram, the two-way interferogram may not be able to collect the zero optical path difference position, and the...
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