| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable an accurate measurement of gas components such as NH<SB POS="POST">3</SB>and HC having adsorptivity even if having low concentration and to improve response speed of the concentration measurement. <P>SOLUTION: The adsorptive gas analyzer comprises: an analyzer body 2 comprising a measurement cell 21 for measuring sample gas and an introduction port 2P for introducing the sample gas into the measurement cell 21; a laser beam radiation part 22 for radiating laser beams L1 to the measurement cell 21; a heating tube 4 for heating the sample gas introduced into the introduction port 2P; a flow rate control part 32 for applying negative pressure to the sample gas and making the heating tube 4 heat the sample gas in negative pressure and introduce the sample gas into the analyzer body 2; and a negative-pressure pump 24 for keeping inside of the measurement cell 21 and a flow path from a downstream side of the flow rate control part 32 to the measurement cell 21 in negative pressure. <P>COPYRIGHT: (C)2012,JPO&INPIT |
