The study on temperature distribution characteristic of irradiated surface by CO2 laser

온도센서를 이용한 CO2레이저 빔 조사면의 온도 분포 특성에 관한 연구

Nowadays, CO2 lasers are used widely in many applications such as materials fabrication, communications, remote sensing and military purpose etc. Especially, CO2 lasers are in the spotlight at surface handling and heat processing. It is important to control the laser output power and beam quality in those fields. To increase beam qualify, We used the feedback system by various sensors. Although, CO2 lasers' output beam became feedback, its beam affected the irradiated material target already. Since, ideal real time control have still the problem to solve. Hence, we need the new proposal for more precise laser processing. So we expect the new effect how to change the irradiated material target as the kind of, processing time and output density caused by the CO2 laser beam. In this study, We have investigated the characteristics of the temperature and HAZ(Heat Affected Zone) by CO2 laser output with IR temperature sensor and RTD.