Spectrum correction technology based on GSA near-infrared spectrometer

Abstract

The invention discloses a spectrum correction technology based on a GSA (GoldenproSpectralAnalyzer) near-infrared spectrometer, which mainly relates to the technical field of spectrum detection and comprises the following steps of: customizing a spectrum wavelength point N within a wavelength range; calculating the threshold range of the spectral absorbance of the wavelength point, judging the abnormal spectrum and the normal spectrum, selecting the wavelength point, finding the maximum value and the minimum value of the spectral absorbance of the normal spectrum, and taking the range of the maximum value and the minimum value as the threshold range M of the spectral absorbance under the wavelength point; in the wavelength range, customizing a spectral wavelength point N + 1, and repeatingthe step 2 to obtain a threshold range M + 1 of spectral absorbance under the wavelength point; and taking intersection of the threshold ranges M, M + 1... of the spectral absorbance under the wavelength points N, N + 1... to obtain a threshold range A of the spectral absorbance, and taking a spectrum within the threshold range A of the spectral absorbance as a preset spectrum, thereby improvingthe recognition rate of an abnormal spectrum.

Description

technical field [0001] The invention mainly relates to the technical field of spectrum detection, in particular to a spectrum correction technology based on a GSA near-infrared spectrometer. Background technique [0002] The wavelength range of near-infrared is between 780nm and 2526nm, which refers to electromagnetic waves between visible light and mid-wave infrared. Near-infrared spectroscopy is a key technology that can effectively analyze different materials. In recent years, science and technology have developed rapidly, and near-infrared spectral analysis technology is also widely used by virtue of its own special detection advantages: simple and convenient detection, non-destructive, efficient and fast, no pollution, rich information, real-time online analysis, etc. In scientific experiments, industrial manufacturing, agricultural production, petrochemical, food safety testing, pharmaceutical monitoring, human body monitoring and other fields. [0003] The GSA (Gold...

AI Technical Summary

Problems solved by technology

At present, gravity sensors are mostly used for material mixing uniformity detection, which can be well applied to one-dimensional detection, while two-dimensional and three-dimensional detection requires multiple gravity sensors to measure at the same time, the processing of detection data is extremely complicated, and the collected Spectral data errors are large

Using GSA-based near-infrared spectrometer to detect the mixing uniformity of materials can solve the problem of complex two-dimensional and three-dimensional detection data processing and large errors of gravity sensors, but the correction technology of near-infrared spectroscopy has yet to be developed