Research on long-range hydrogen gas measurement for development of Raman lidar sensors

This study explores the analysis of hydrogen gas from a distance using a Raman lidar spectrometer. Hydrogen gas is a flammable gas with risk of explosion, making accurate and quick detection crucial. In this study, we evaluated the performance of a Raman lidar spectrometer for detecting hydrogen gas from a distance. Experiments were conducted at distances of 1, 3, 5, 10, 20, and 30 m. To assess the long-range measurement capability at various hydrogen concentrations, we analyzed the accuracy and sensitivity. The findings suggest that the sensor can perform quick and accurate detection even at low concentrations, maintaining high sensitivity at a distance. Thus, Raman lidar spectrometers are promising for real-time remote detection of hydrogen gas. This study provides guidance for the effective utilization of Raman lidar sensors for hydrogen gas detection and monitoring in diverse application areas such as industrial fire prevention, safety management, environmental monitoring, and energy production.