서지주요정보
정밀 광 삼각법 변위 센서의 오차 최소화를 위한 구조 설계 및 신호 처리 알고리즘 = System design and signal processing algorithm for error minimization of optical triangulation displacement sensors
서명 / 저자 정밀 광 삼각법 변위 센서의 오차 최소화를 위한 구조 설계 및 신호 처리 알고리즘 = System design and signal processing algorithm for error minimization of optical triangulation displacement sensors / 김경찬.
저자명 김경찬 ; Kim, Kyung-Chan
발행사항 [대전 : 한국과학기술원, 2001].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8012245

소장위치/청구기호

학술문화관(문화관) 보존서고

DME 01023

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

OTDS (optical triangulation displacement sensors) have been widely used in industrial measurement applications because they can perform a non-contact measurement with sub-micron resolution. Moreover, they are reasonably fast and have a simple structure, good repeatability, and a long operation range. OTDS convert the change of a spot position on the detector into object displacement on the assumption that the spot is a perfect point. However, actually, there exists a light intensity distribution on the detector. Various factors such as inclinations of the object surface, speckle effects, optical power fluctuations of the light source, and noises in the detector change properties of the light intensity distribution. One easy way to make the light intensity distribution robust against the error sources is to use an incoherent LED as the light source and a linear CCD (charge coupled device) as the detector. In such a system, a peak position of the light intensity distribution is exactly proportional to the displacement of the object even if there are various error sources. Therefore, it is possible to minimize errors of OTDS. However, adopting the CCD inevitably causes problems; the resolution of the sensor system is limited by the pixel size of the CCD and there must be large amounts of calculation because output data from the CCD are discrete. To overcome these problems, a signal processing system for error-minimized OTDS is proposed.

서지기타정보

서지기타정보
청구기호 {DME 01023
형태사항 vii, 116 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kyung-Chan Kim
지도교수의 한글표기 : 곽윤근
지도교수의 영문표기 : Yoon-Keun Kwak
수록잡지명 : "A robust signal processing algorithm for linear displacement measuring optical triangulation sensors". Review of scientific instruments, v.71 no.8, pp. 3220-3225 (2000)
학위논문 학위논문(박사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 102-111
주제 변위 측정
변위 센서
광삼각법
신호 처리
상관 함수
Displacement measurement
Displacement sensor
Optical triangulation
Signal processing
Cross correlation
QR CODE qr code