Presentation 2002/3/11
An analysis of mechanical design of the wind receptor hair in cricket by optical measurement of Brownian motion
Tadahiro Watanabe, Tateo Shimozawa,
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Abstract(in English) The power spectrum of Brownian motion (thermal fluctuation ) of the wind receptor hair in cricket was measured by an optical system. Moment of inertia I of the hair shaft, spring stiffness S of the hair base, and the sum of the torsional resistance and the frictional resistance R+D were estimated by the fluctuation dissipation theorem. The values of these mechanical parameters were mostly in agreement with these obtained previously by the laser-doppler velocimetry of hair displacement to wind stimulus. It turns out that the value of R and D is almost equal. This means the energy transmission from air motion to the hair base is maximized, with the condition called impedance matching.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) cricket / wind receptor / Brownian motion / mechanical design / power spectrum / impedance matching
Paper # MBE2001-179
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Committee MBE
Conference Date 2002/3/11(1days)
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Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An analysis of mechanical design of the wind receptor hair in cricket by optical measurement of Brownian motion
Sub Title (in English)
Keyword(1) cricket
Keyword(2) wind receptor
Keyword(3) Brownian motion
Keyword(4) mechanical design
Keyword(5) power spectrum
Keyword(6) impedance matching
1st Author's Name Tadahiro Watanabe
1st Author's Affiliation Neuro-Cybernetics Laboratory, Research Institute for Electronic science, Hokkaido University()
2nd Author's Name Tateo Shimozawa
2nd Author's Affiliation Neuro-Cybernetics Laboratory, Research Institute for Electronic science, Hokkaido University
Date 2002/3/11
Paper # MBE2001-179
Volume (vol) vol.101
Number (no) 733
Page pp.pp.-
#Pages 6
Date of Issue