Compact liquid film thickness and temperature synchronous measurement system

Abstract

The invention provides a compact liquid film thickness and temperature synchronous measurement system, which is characterized by comprising a halogen light source used for emitting white light; the optical fiber collimator is connected with the halogen light source and is used for collimating the white light; the optical filter is used for filtering the white light; the cuvette is used for bearing a liquid medium to be detected; the convex lens is used for converging the light beams penetrating through the liquid medium; the optical fiber probe is used for receiving light beams converged by the convex lens; the spectrograph is connected with the optical fiber probe through an optical fiber and is used for converting an optical signal into an electric signal; the computer is electrically connected with the spectrograph and used for collecting and processing electric signals, the halogen light source is a broadband light source, the optical filter filters optical signals outside the response range of the spectrograph, the optical filter is arranged between the optical fiber collimator and the cuvette, and the convex lens is arranged between the cuvette and the optical fiber probe.

Description

technical field [0001] The invention relates to the field of liquid film measurement, in particular to a compact liquid film thickness and temperature synchronous measurement system. Background technique [0002] The measurement of liquid film-related parameters in falling film flow is very important in industrial processes. Taking the water film formed on the surface of the shell by spraying the containment tank of a passive containment cooling system in the nuclear industry as an example, its thickness and coverage It is closely related to ensuring the safety of the reactor. High-precision quantitative analysis of key parameters such as liquid film thickness and temperature not only provides a better understanding of liquid film formation, flow, and evaporation processes, but also has far-reaching significance for optimizing various industrial processes involved. [0003] In the existing patent (ZL201410304521.6), the optical path of the liquid film temperature and thickn...

AI Technical Summary

Problems solved by technology

The device provided by the prior art has many optical components, takes up a large space, and is complicated to arrange and debug. Especially when performing wavelength separation, the construction of the optical path has high requirements on the position and angle of the optical components, which is not easy to operate

In addition, the laser light source and detector are greatly affected by the measured liquid medium, and cannot measure liquid media with unknown absorption positions, which is not universal

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