Paper Titles

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Precision Force Measurement Using the Levitation Mass Method (LMM)
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 103Precision Force Measurement Using the Levitation...

Precision Force Measurement Using the Levitation Mass Method (LMM)

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Abstract:

This paper reviews the present status and future prospects of the levitation mass method (LMM), which is a precision mechanical measurement method. The LMM has been proposed and improved by the author for 10 years. The force generated by the actuator is measured as the inertial force of the mass levitated with sufficiently small friction using an aerostatic linear bearing and connected to the moving part of the actuator. During the measurement, the Doppler shift frequency of the laser beam reflected by the mass is measured with a high accuracy with the help of an optical interferometer. Subsequently, the velocity, position, acceleration, and inertial force of the mass are calculated using based on this frequency. Simultaneously, the current and voltage supplied to the actuator are measured.

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Periodical:

Applied Mechanics and Materials (Volume 103)

Pages:

1-8

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.103.1

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Online since:

September 2011

Authors:

Yusaku Fujii, Akihiro Takita, Jakrapong Kaewkhao, Mitra Djamal, Takao Yamaguchi

Keywords:

Dynamic Force Correction, Force Transducer, Impact Force, Inertial Force, Inertial Mass, Levitation Mass Method, Optical Interferometer

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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DOI: 10.1088/0957-0233/14/1/310

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[33] Y. Fujii and K. Maru, Self-correction method for dynamic measurement error of force sensors, Exp. Techniques, (in press, published online).

[34] K. Maru and Y. Fujii, Wavelength-insensitive laser Doppler velocimeter using beam position shift induced by Mach-Zehnder interferometers, Optics Express, Vol. 17, No. 20, pp.17441-17449, (2009).

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[35] K. Maru and Y. Fujii, Reduction of chromatic dispersion due to coupling for synchronized-router-based flat-passband filter using multiple-input arrayed waveguide grating, Optics Express, Vol. 17, No. 24, pp.22260-22270, Nov. (2009).

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[36] K. Maru and Y. Fujii, Integrated wavelength-insensitive differential laser Doppler velocimeter using planar lightwave circuit, Journal of Lightwave Technology, Vol. 27, No. 22, pp.5078-5083, Nov. (2009).

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[37] K. Maru, K. Kobayashi, and Y. Fujii, Multi-point differential laser Doppler velocimeter using arrayed waveguide gratings with small wavelength sensitivity, Optics Express, Vol. 18, No. 1, pp.301-308, Jan. (2010).

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