CAJ | 학술논문

可调谐二极管激光吸收光谱技术（TDLAS）是利用气体分子的吸收光谱技术，痕量大气中污染气体的成分及浓度的新方法．介绍了TDLAS系统的组成及原理，分析了气体检测中二次谐波信号的检测原理，建立了待测浓度气体的二次谐波信号与标准浓度的二次谐波信号之间的模型，并用实验验证了该模型的准确性．
가조해이겁관격광흡수광보기술（TDLAS）시이용기체분자적흡수광보기술，흔량대기중오염기체적성분급농도적신방법．개소료TDLAS계통적조성급원리，분석료기체검측중이차해파신호적검측원리，건립료대측농도기체적이차해파신호여표준농도적이차해파신호지간적모형，병용실험험증료해모형적준학성．
Tunable diode laser absorption spectroscopy （TDLAS） is make use of absorption spectroscopy of gas molecules, it is a new method of trace gas composition and the concentration of atmospheric pollution . Introduced the construct and principle of TDLAS system, analyzed the detection theory of second harmonic signal of gas, established of the mode/ between second harmonic signal of concentrations to be tested and the second harmonic signals of standard gas concentration, the model＇s accuracy proved to be highly by experiment.