| 摘要 |
A laser-excited spectrophone comprises a working chamber having optical windows at its butt ends to pass through laser radiation, a gaseous sample being contained within a cavity thereof. The cavity of the working chamber communicates with a conduit whose length exceeds 8 to 10 times its cross-sectional diameter, while the volume of said conduit is at least 50 times smaller than the volume of the working chamber. The conduit accommodates a condenser microphone. The laser-excited spectrophone in compliance with the invention controls the temperature of the sample gas contained within the working chamber by its heating with the aid of an individual arrangement.
|
