서지주요정보
레이저 간섭계를 이용한 진동 가속도계의 절대교정에 관한 연구 = A study on primary calibration of vibration accelerometer using laser interferometer
서명 / 저자 레이저 간섭계를 이용한 진동 가속도계의 절대교정에 관한 연구 = A study on primary calibration of vibration accelerometer using laser interferometer / 이두희.
저자명 이두희 ; Lee, Doo-Hee
발행사항 [대전 : 한국과학기술원, 2000].
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소장정보

등록번호

8010758

소장위치/청구기호

학술문화관(문화관) 보존서고

DPH 00001

SMS전송

도서상태

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반납예정일

초록정보

In order to establish the vibration standards in the frequency range of 0.5 - 10 kHz, two primary calibration systems using laser interferometry are constructed and related calibration techniques are studied. Using the constructed systems absolute calibration of the standard reference accelerometers are performed, and various uncertainty parameters are analyzed. The relative expanded uncertainty of the calibration results is estimated less than 0.5% with 95.5% of confidence level (coverage factor k = 2) over the frequency range of 0.5 Hz - 10 kHz. The reliability of the constructed vibration calibration system and techniques was confirmed through the APMP international comparison on the vibration accelerometer. In this thesis, we propose and demonstrate a significantly improved multiple reflection interferometer for the high accuracy measurement of vibration amplitude of a small area, having a simpler structure for an easy alignment. The multiple reflection system employs a right-angle prism and a convex lens, which is located in the probe beam path of a Michelson interferometer. An additional advantage is that the number of reflection can be easily changed in order to adjust the sensitivity and dynamic range of the interferometer. In order to evaluate the performance of the multiple reflection interferometer as a function of reflection number, the Bessel function null method is used where one measures the vibration amplitudes that produce null optical signal at the driving vibration frequency. They correspond to zeros of the first order Bessel function $J_1$. The measurements were taken at the frequency of 1250 Hz for different number of reflections ranging from 3 to 15, and the results were used to obtain calibration factors. For the accelerometer calibration in higher frequency rages above 10 kHz, a piezoelectric vibration exciter is fabricated. Its performance characteristics are evaluated using the Michelson interferometer and Mach-Zehnder fiber-optic interferometer. Also the applicabilities for the precision accelerometer calibration are discussed.

서지기타정보

서지기타정보
청구기호 {DPH 00001
형태사항 viii, 95 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Doo-Hee Lee
지도교수의 한글표기 : 김병윤
지도교수의 영문표기 : Byoung-Yoon Kim
수록잡지명 : "Multiple-reflection interferometer for high accuracy measurement of small vibration displacement". Review of scientific Instruments, , (2000)
학위논문 학위논문(박사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 91-95
주제 진동 가속도계
교정
진동 발생기
다중반사 간섭계
압전형 진동 발생기
Vibration accelerometer
Calibration
Vibration exciter
Multiple reflection interferometer
Piezoelectric vibration exciter
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