Spectral calibration method, device, equipment and storage medium for echelle spectrometer

A spectral calibration and spectrometer technology, which is applied in the application field of mid-step spectrometers, can solve the problems of deviation, reduce the spectral calibration accuracy of the mid-step spectrometer, and the theoretical model does not have the anti-rotation ability, so as to improve the spectral calibration accuracy and ensure installation. The effect of debugging precision
CN110849827BActive Publication Date: 2021-02-09CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Publication Date
2021-02-09

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Abstract

The application discloses a spectral calibration method, device, equipment and computer-readable storage medium for a ladder spectrometer. Among them, the method includes using an image processing algorithm to calculate the coordinate deviation value of the spot position of the mercury lamp at different wavelengths in the current frame; if the coordinate deviation value is not within the tolerance range of the deviation, an instruction that the rotation angle of the detector installation position does not meet the requirements is generated. Among them, the deviation allowable range is determined based on the coordinate deviation standard curve and the threshold value; the coordinate deviation standard curve is obtained by fitting the coordinate deviation value and the corresponding position deviation of the spot positions of different wavelengths; the position deviation is the theoretical position and detection of the characteristic spectrum design model The deviation of the actual position of the laser spot from the best matching position. This application solves the problem in the related art that the spectral calibration accuracy is reduced due to the rotation of the spot position relative to the optical system, ensures the installation and debugging accuracy of the ladder spectrometer detector, and effectively improves the spectral calibration accuracy of the ladder spectrometer.
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Description

technical field

[0001] The present application relates to the technical field of echelle spectrometer application, in particular to a spectral calibration method, device, equipment and computer-readable storage medium for an echelle spectrometer. Background technique

[0002] Echelle spectrometers are widely used due to their many advantages such as online measurement, non-contact, and high measurement accuracy. For example, echelle spectrometers are usually used to obtain the content of each element of the measured object by measuring the spectral response curve of the substance. Specifically, using the one-to-one correspondence between the spectrum and the detector target surface in the echelle spectrometer, the position and energy of the imaging spot of the detector are calculated, and the spectral response curve of the substance to be measured is obtained. Measure the content of each element in a substance.

[0003] When measuring the spectral response curve of substanc...

Claims

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