Presentation 2004-10-29
A Measurement Method of the Sound Velocity through Human Body Using Ultrasonic Sensors
Hiroaki IKUKAWA, Kenji FURHATA,
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Abstract(in English) The ultrasound velocity through human body is calculated from the distance between two piezoelectric transducers and the delay time. But, the output signal has longer time to rise than the pulse width of the inputted rectangle milse. In this paper, a new signal processing method for sensing through human body is proposed, and measured with human legs, a model and a pig bone. From the results, it can be found that the sound velocity of human bone marrow is about 2,000 m/s(the standard deviation : σ=181.9m/s), and the spongy bones' is about 4,000 m/s (σ=544,3m/s).
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Spongy bone / Bone marrow / Model experiment / Signal processing / Primary received signal / Secondary received signal
Paper # EA2004-89
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Committee EA
Conference Date 2004/10/22(1days)
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Registration To Engineering Acoustics (EA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Measurement Method of the Sound Velocity through Human Body Using Ultrasonic Sensors
Sub Title (in English)
Keyword(1) Spongy bone
Keyword(2) Bone marrow
Keyword(3) Model experiment
Keyword(4) Signal processing
Keyword(5) Primary received signal
Keyword(6) Secondary received signal
1st Author's Name Hiroaki IKUKAWA
1st Author's Affiliation Department of Electrical and Electronic Engineering, Faculty of Engineering, Shinshu University()
2nd Author's Name Kenji FURHATA
2nd Author's Affiliation Department of Electrical and Electronic Engineering, Faculty of Engineering, Shinshu University
Date 2004-10-29
Paper # EA2004-89
Volume (vol) vol.104
Number (no) 379
Page pp.pp.-
#Pages 6
Date of Issue