[논문]The Levitation Mass Method: A Precision Mass and Force Measurement Technique

Fujii, Yusaku

[국내논문] The Levitation Mass Method: A Precision Mass and Force Measurement Technique 원문보기

International journal of precision engineering and manufacturing, v.9 no.3, 2008년, pp.46 - 50

Fujii, Yusaku (Department of Electronic Engineering, Gunma University)

Abstract ▼ AI-Helper

The present status and future prospects of the levitation mass method (LMM), a technique for precision mass and force measurement, are reviewed. In the LMM, the inertial force of a mass levitated using a pneumatic linear bearing is used as the reference force applied to the objects being tested, such as force transducers, materials, or structures. The inertial force of the levitated mass is measured using an optical interferometer. We have modified this technique for dynamic force calibration of impact, oscillation, and step loads. We have also applied the LMM to material testing, providing methods for evaluating material viscoelasticity under an oscillating or impact load, evaluating material friction, evaluating the biomechanics of a human hand, and generating and measuring micro-Newton-level forces.

Keyword

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대상 데이터

x for all ten collision measurements. A total of 1490 plots are shown in the figure. Each plotted point represents a data set comprised of the time t, position x, velocity v, and force Fmass calculated from the corresponding data set comprised of the time t and frequency f.

이론/모형

A novel practical method of characterizing the mechanical response of viscoelastic materials against impact loading is proposed. The mechanical quantities of the material during the impact were measured accurately using the LMM and formulated by the least squares method.

참고문헌 (35)

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