메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
For calibration of displacement measuring sensors, a portable calibration system using a homodyne laser interferometer was developed. The system is directly traceable to the Meter definition. And it is also transportable due to use of a laser source coupled by an optical fiber, so it can be used for calibrating the sensors attached to the length measuring instruments. In general, the accuracy of the laser interferometer with short measuring range is mainly limited by nonlinearity error. In order to reduce nonlinearity error, offsets, amplitudes and phase of the sine and cosine signals from interferometer are manually adjusted and compensated by ellipse fit. Nonlinearity error is reduced to ±0.15 ㎚ by software-based compensation. On calibrating sensors, the system can be used in a static or a dynamic way. When the system is used statically with measuring time of 2 minutes, the expanded uncertainty at 95% confidence level is estimated as (1.2 + 2.6 × 10?? L) ㎚, where L is moving distance in ㎚.

목차

1. Introduction
2. Experimental system
3. Performance test and sensor calibration
4. Uncertainty evaluation
5. Conclusion
ACKNOWLEDGEMENT
REFERENCES

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2009-555-016776957