REMOTE ANALYZING APPARATUS FOR GASEOUS MATERIAL

摘要

The remote quantitative analysis of a material and the range of the material are determined from the Raman scattered radiation from the material, such as for example, a gas where the gas is subjected to intense pulses of laser radiation launched from a remote location. The scattered radiation is filtered to selectively attenuate reflected radiation from the source and transmit the Raman scattered radiation to a detector system which integrates the detected radiation over an interval spaced in time from a laser pulse whereby the spacing represents range to the gas and the integral represents the concentration of a particular species in the gas.