System and method for gas discharge spectroscopy

摘要

A system for identifying gases, the system having a plasma generator for generating a plasma using the gas to be identified and an array of detectors for detecting light emitted from the plasma. By analysing the output of the detectors, the gas can be identified. The system includes a plasma display (11) having two glass plates (36 and 38) patterned with strips that form the plasma electrodes. The intersection between the strips defines pixels which are individually addressable.