Biomedical measurement using the levitation mass method

Yusaku Fujii

doi:10.1117/12.667682

2 February 2006 Biomedical measurement using the levitation mass method

Yusaku Fujii

Proceedings Volume 6026, ICO20: Biomedical Optics; 60261K (2006) https://doi.org/10.1117/12.667682
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

The mechanical response of a palm of a human hand against impact force is accurately determined by means of a practical method, a variation of the Levitation Mass Method. In the method, a mass that is levitated with a pneumatic linear bearing, and hence encounters negligible friction, is made to collide with a material under test. During the collision the Doppler frequency shift of a laser beam reflecting from the mass is accurately measured using an optical interferometer. The velocity, position, acceleration and inertial force of the mass are calculated from the measured time-varying Doppler shift. The method is characterized by the fact that preparation of the test specimen is very easy, the testing time is very short and the measurement accuracy is very high. The possibility of using the method for biomedical engineering is discussed.

Citation Download Citation

Yusaku Fujii "Biomedical measurement using the levitation mass method", Proc. SPIE 6026, ICO20: Biomedical Optics, 60261K (2 February 2006); https://doi.org/10.1117/12.667682

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available