Quick-speed detecting wide spectrum spectral method

Abstract

The technical solution thereof is: installing multi linear CCD components on the spectrum surface of the grating spectrograph; the end pixel of previous CCD component is superposed with the head pixel of the next CCD component; when jointing the CCD component, the centre distance of two row linear CCD pixel matrixes is less than 12mm; the jointed detector can detect the spectrum whose spectral line height is over 12mm in range of 240mm.

Description

technical field [0001] The invention belongs to the technique of rapid detection of wide-spectrum spectra by grating spectrographs, and the conventional grating spectrographs can be upgraded to three-dimensional display mode fast-detection wide-spectrum grating spectrographs. Background technique [0002] At present, the common feature of various types of grating spectrographs produced in China is that the spectrum on the spectrum surface is captured by photosensitive film, and the spectrum on the spectrum surface can only be obtained after exposure and washing. The spectrograms that have been washed must be analyzed, which is a waste of time. During the flushing process, due to the mastery and control of time, the concentration of the liquid medicine, the control of temperature, and proficiency, it is inevitable that the spectral intensity or image gray level will be affected. The control cannot have high repeatability, which affects the measurement of spectral intensity; i...

AI Technical Summary

Problems solved by technology

The spectrograms that have been washed must be analyzed, which is a waste of time. During the flushing process, due to the mastery and control of time, the concentration of the liquid medicine, the control of temperature, and proficiency, it is inevitable that the spectral intensity or image gray level will be affected. The control cannot have high repeatability, which affects the measurement of spectral intensity; in addition, due to the errors in the sensitivity of the photosensitive film and the linearity of the photosensitive response, it is impossible to accurately reflect the actual real-time spectrum. Therefore, it directly affects the quality and quality of spectral analysis. efficiency

Although the multi-channel spectral detector using the linear array CCD as the photoelectric sensor can basically solve the above problems, the geometric size of the linear array CCD is too small and will not exceed 50mm, while the spectrum of the spectrograph is very wide, generally 240mm, so A single linear array CCD multi-channel spectral detector cannot meet the requirements of wide-spectrum spectral detection

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