| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a analytical device, capable of measuring the high temperature exhaust gas from power machineries under operation, in real time, different from sample measurement with possible constituent changes resulting from heat loss, measuring exhaust gas with concentration distribution evenly, and measuring even a trace gas with high accuracy and with rapidity. <P>SOLUTION: The gaseous component concentration analyzing method is characterized, by arranging a reflecting mirror of perfect circular along the annular inner periphery-wall surface of cylindrical gas channel with both open ends enabling gas to be passable, and measuring the concentration of gaseous component flowing through the annular gas channel, such that first, the beam light is injected at the angleθacross the cylindrical gas channel from outside of the annular inner periphery wall surface to reflect with the mirror, and finally the reflected light is received by a light sensor, after the reflected light paths of beam light are reflected N-times at different locations, and crossing each other in the inside the cylindrical gas channel. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
