Apparatus for Mechanical Vibration using Helmholtz Coils-Making an apparatus related to some technological regions as the student study-
ヘルムホルツコイルを利用した力学的振動実験装置-学生による複数の専門領域に関連したものづくり-

Naokichi Kiso, Atsushi Eguchi, Osamu Kawae, Toshiyuki Suzuki
2011 Journal of The National Institute of Technology, Asahikawa College  
An apparatus for the generation of mechanical vibration was fabricated , using Helmholtz Coils as a tool of student study. By using the apparatus, the vibration of a coil spring with a damper, the flexural vibration of beams and the torsional vibration of metals had been examined. Experimental data on examination of frequency resonance curve were good consistent with theoretical solution. Damping ratios of vibrations were also measured by two methods , using the bandwidth of the resonance curve
more » ... and the logarithmic decrement of a free decay, the numerical values of those were approximately in agreement each other, and were in good concistency with the previously reported results.
doi:10.24706/asahikawa.48.0_1 fatcat:nqcqqor4zra7bj5cnvu2t6qbne