The application discloses an online
ultraviolet ratio analyzer and relates to the field of
ultraviolet ratio analyzers, and aims at solving the technical problems of low detection precision and influence of a steady flow structure on
gas mixing ratio in traditional analyzers. The online
ultraviolet ratio analyzer is based on a gas path
pipe and a lamp source
assembly component, a multi-section measurement management platform is arranged in the lamp source
assembly component and is associated with each component, a to-be-measured gas enters the gas path
pipe after primary detection and steady flow, the management platform collects parameter sets based on the lamp source
assembly component, an interference action instruction is sent to a steady flow structure assembly by a built-in parameter correction model, an environmental interference coefficient is obtained through a dynamic detection component and a primary detection assembly, the parameter sets are secondarily corrected, the final detection ratio of gas components is calculated, and through a
closed loop process of segmented collection, interference coefficient acquisition and parameter secondary correction, the interference of the steady flow structure and environmental factors is offset, the
collection period can be adaptively adjusted, and
dynamic balance between detection precision and equipment efficiency is achieved.