Automatic spectrum adjusting system and method based on SD-OCT

The invention provides an automatic spectrum adjusting system and method based on SD-OCT, and relates to the technical field of spectrometers, the system comprises a spectrograph first lens, a grating, a spectrograph second lens, an adjusting module, a processing module, a line-scan digital camera and a photosensitive pixel unit which are sequentially arranged along a light path direction; incident light is refracted to the grating through the first lens of the spectrometer and refracted to the second lens of the spectrometer, a spectral line passing through the second lens of the spectrometer reaches the adjusting module, and the spectral line is projected to a photosensitive pixel unit in the line-scan digital camera after passing through the adjusting module; and the adjusting module is arranged between the spectrograph second lens and the line-scan digital camera and is connected with the processing module. The system can overcome the defect that the linear array camera cannot sense light normally due to