Open Path Monitoring for Toxic Gases Using Tunable Diode Laser Spectroscopy

摘要

Spectroscopy based on tunable diode lasers has been developed to selectively measure trace concentrations of dangerous or undesirable gases in gas mixtures. This paper describes the successful implementation of tunable diode laser spectroscopy in commercially available systems. A family of modular instruments, called SpectraScan~circleR, can be easily configured from interchangeable components to suit a specific aplication. Data are presented showing the application of SpectraScan~circleR in refinery and aluminum smelting operations.