Based on image-level (mosaic) multispectral filter imaging technology, airborne spectral imaging index analyzers based on industrial applications have been developed.

Water is the source of life, and as the blood of the ecosystem, it is the basis of human survival, production and life, and sufficient and high-quality water resources are the primary condition for the healthy cycle of the ecosystem. However, water resources are very vulnerable to pollution, especially some inland water bodies, due to the natural confinement of its pollution problem is more prominent, while water resources as a carrier of pollutants, with dynamic diffusion and spread characteristics, will further aggravate the degree of pollution of water bodies. There are many oceans and lakes in China, along with the rapid development of the economy and the enhancement of human activities, the problem of water quality pollution in oceans and lakes has become increasingly serious. It has become a key factor limiting the sustainable development of cities, so it is necessary to use high-tech means to carry out research on water quality pollution in oceans and lakes, to provide timely and rapid water quality conditions in oceans and lakes, to protect people's normal production and life.

Raman spectrum is the fingerprint spectrum of molecular vibration. Different material molecules have different vibration frequency, so it is often used as an important basis for material identification. It has the advantages of simple operation, high sensitivity and good repeatability. In this paper, through the Raman spectrometer quantitative analysis of silica dust samples, through the experiment to prove the feasibility of its application in the field of analysis of dust.