PID 제어기법을 이용한 펄스 레이저 출력 안정화에 관한 연구

• 영문명: Pulse Laser Power Stabilization Using PID Control Method
• 발행기관: 한국레이저가공학회
• 저자명: 류훈철(Hoonchul Ryoo) 곽승우(Seungwoo Kwak) 강동원(Dongwon Kang) 김경식(Kyoungsik Kim) 한재원(Jaewon Hahn)
• 간행물 정보: 『한국레이저가공학회지』한국레이저가공학회지 제9권 제2호, 17~22쪽, 전체 6쪽
• 주제분류: 공학 > 기계공학
• 파일형태: PDF
• 발행일자: 2006.09.01

영문 초록

  In this study, PID control method was applied to decrease the power fluctuation of the pulse laser which is one of the major processing variables in laser machining process. To stabilize the power fluctuation of the pulse laser, we averaged 10 pulse outputs of Nd:YAG laser operating in 10Hz using boxcar averager, and with taking this averaged output as an input signal, we conducted PID control using optical attenuator which is consisted of half wave plate attached on the stepping motor and polarizer. When PID control was not enabled, the power fluctuation was 4.71％ and with PID control, the power fluctuation was 1.86％ for 2 hours and 1 hour respectively. As a result, we stabilized the power fluctuation of the pulse laser by 60.5％

목차

Abstract
1. 서론
2. 본론
3. 실험방법
4. 결과 및 고찰
5. 결론
후기
참고문헌

키워드

Power Fluctuation(출력 변동) Pulse laser(펄스 레이저) PID control(PID 제어) Optical Attenuator(광학 감쇠기) Nb:YAG Laser(Nd:YAG 레이저)