Astronaut urine detection method based on liquid core waveguide joint spectroscopy

Abstract

The invention discloses an astronaut urine detecting method based on a combined spectrum of a liquid core waveguide. The method is realized basing on an astronaut urine detecting system based on the combined spectrum of the liquid core waveguide. The detecting method comprises seven steps of test liquid continuous injection, conjoint spectrum test initialization, dynamic liquid core waveguide LIBStest, dynamic liquid core waveguide Raman test, waste liquid real-time collection, test ending and data post-processing, residual waste liquid post-processing, etc. The astronaut urine detecting method has the advantages that a detecting method based on the combined spectrum of a motion liquid core waveguide is adopted, thereby realizing an enhancement of weak Raman signals and an accumulation ofLIBS measurement signals of multi-points and multi-times of a microzone at the same time, and a large number of samples are subjected to statistical measurements, so that the component detection on the astronaut urine is more reliable; a DC electric field method is adopted in the waste liquid collection step, so that requirements of a microgravity environment are met; and at the end of the test,clean water is used to clean a liquid core, so that requirements of environmental protection and sanitation are met.

Description

technical field [0001] The invention relates to a micro-area detection method, in particular to a combined spectrum micro-area detection method based on a liquid core waveguide, which is suitable for daily monitoring of astronaut urine in a space station microgravity environment and belongs to the field of photoelectric detection. Background technique [0002] Manned spaceflight refers to the flight activities of humans driving spacecraft in space to engage in various sciences, experiments, researches, etc. to and from the earth. The areas where astronauts work mainly include manned spacecraft, space stations, and alien planet camps. Among them, the space station is the most common and long-term workplace. In the space station, astronauts are in a long-term microgravity environment, and their physical conditions need to be monitored at any time in order to discover their potential health effects and problems. [0003] Many test samples can be selected for the health monito...

AI Technical Summary

Problems solved by technology

[0005] Laser Raman spectroscopy is a convenient and feasible method to detect creatinine, protein, urea, etc. in urine, but because the content of creatinine, protein, urea, etc. in urine is low, the Raman signal is very weak, so if the Raman spectroscopy is used for astronaut urine monitoring, and the problem of its weak signal needs to be solved

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