• 제목/요약/키워드: Vibration resistance

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원자간격 현미경의 캔틸레버의 정량적 특성평가를 위한 계측 시스템 개발 (Development of Measurement System for Quantitative Measurement of Cantilever in Atomic Force Microscopy)

  • 권현규;남기호
    • 한국기계가공학회지
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    • 제6권2호
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    • pp.22-27
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    • 2007

  • In this study, the two methods of stiffness measurement(Spring constant) of cantilever were proposed for quantitative measurement in Atomic Force Microscopy(AFM). As the 1st method for the measurement of stiffness, the probe method, which is used in the measurement of the semiconductor mechanical and electrical properties, was applied to the measurement of the cantilever. Experiments by the probe method were performed finding the resistance value of cantilever. As the results, the resistance was measured differently along with the dimension and the thickness of cantilever that determined the stiffness(spring constant) of the lever. As the 2nd method, the vibration characteristics(Dunkerley expression) is used to obtain the stiffness of the complex structure which is combined by AFM cantilever and the standard cantilever. We measured the resonant frequency from the complex structure using the micro stages and stereo microscope. As the results, we confirmed that the vibration characteristics(Dunkerley expression) is effected the micro complex structure of AFM cantilever.

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서보라이트 픽스쳐의 진동 특성 개선 방법 (Methodology on Improving Vibration Characteristics of Servo Write Fixture)

  • 윤태용;로저 쿠;앤드루 핸런;찰스 테일러
    • 정보저장시스템학회논문집
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    • 제7권2호
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    • pp.47-52
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    • 2011

  • This paper presents a method to improve vibration characteristics of servo track write (STW) fixture. STW fixtures supported by flexible mounts are subject to various vibration sources. Using Finite element analysis (FEA) vibration modes of the fixture are identified. The FEA results suggest certain vibration modes be reduced through design change of flexible mounts to improve vibration responses of the fixture. Based on layered flexible mounts theory a parametric study on shear and bending stiffness is performed to obtain a suitable flexible mount design leading to increased resistance to rocking motion. Experiments confirm improvement of vibration characteristics and drive performance through new mounts design.

  • https://doi.org/10.9797/TSISS.2011.7.2.047 인용 PDF KSCI