DISPERSIVE INFRA-RED GAS ANALYSER
Definition
A <DISPERSIVE INFRA-RED GAS ANALYSER>is an <INSTRUMENTATION ITEM> and a <GAS ANALYSER> in which the absorption of a specific wavelength or <IR> radiation is measured by dispersing the <IR> radiation from a source through a prism, gitter, or filter before passing it through the gas, and detecting this radiation by a broad band sensor