CAJ | 학술논문

气体光声光谱检测技术能很好地应用于变压器油中溶解气体的在线监测。温度是光声光谱检测的重要影响因素之一。论文基于光声光谱技术的基本原理,利用分布反馈半导体激光器构建了一种便携式、可调谐的光声光谱装置;在分析光声池声学理论的基础上,结合实验探讨了温度对光声池池常数、谐振频率以及气体吸收系数的影响。以变压器油中主要特征气体C2H2进行实验分析,得到了乙炔气体光声信号与温度之间的关系曲线,理论及实验结果为进一步完善油中气体光声光谱在线监测系统奠定了重要基础。
기체광성광보검측기술능흔호지응용우변압기유중용해기체적재선감측。온도시광성광보검측적중요영향인소지일。논문기우광성광보기술적기본원리,이용분포반궤반도체격광기구건료일충편휴식、가조해적광성광보장치;재분석광성지성학이론적기출상,결합실험탐토료온도대광성지지상수、해진빈솔이급기체흡수계수적영향。이변압기유중주요특정기체C2H2진행실험분석,득도료을결기체광성신호여온도지간적관계곡선,이론급실험결과위진일보완선유중기체광성광보재선감측계통전정료중요기출。
Gas photoacoustic spectroscopy（PAS） can be well applied in transformer oil-dissolved gas detection online monitoring.The effect of temperature on the photoacoustic spectroscopy detection is significant.A portable and tunable experimental setup with a distributed feedback diode laser is developed based on the fundamental of PAS in the paper.The influences of temperature on photoacoustic cell constant,resonant frequency and gas absorption coefficients with the experiments are discussed.Based on the experimental analysis of the acetylene dissolved in transformer oil,the relationships between acetylene photoacoustic signal and temperature are given.The theoretical and experimental results laid an important foundation,for the further improvement in oil gas photoacoustic spectroscopy of on-line monitoring system.