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Proceedings Paper

Experimental study on skin surface character utilizing laser Doppler effect
Author(s): Yong Ni; Kexin Xu; Xiaofang Zhang; Chengzhi Jiang
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Paper Abstract

In this paper, the study on roughness of skin surface utilizing laser Doppler effect is put forward. Theoretically speaking, the roughness can be regard as the synthesis of longitudinal and transverse displacement of a point on epidermis. In the paper, the fundamentals and method of displacement measurement utilizing laser Doppler effect are introduced, and the theoretical system of skin surface cognition utilizing laser Doppler effect is established. The system design of skin surface character testing is extracted, a new reference optical system is put forward to achieve the roughness detection, an optical grating is used for frequency mixing and getting high SNR signals in this measurement. The factors influencing the measurement accuracy are expounded. Moreover, the theory analysis and experiment-based methods are offered to improve the accuracy. The measurement technique utilizing laser Doppler effect has many advantages, such as high precision, quickly response speed, large measurement range and non-touch measurement, so this study can be applied in analyzing the profile and distortion of skin surface, which is very important in theory and practice for the non-invasive detection fields ofbiology and iatrology.

Paper Details

Date Published: 12 September 2002
PDF: 7 pages
Proc. SPIE 4916, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment, (12 September 2002); doi: 10.1117/12.482988
Show Author Affiliations
Yong Ni, Tianjin Univ. (China)
Kexin Xu, Tianjin Univ. (China)
Xiaofang Zhang, Beijing Institute of Technology (China)
Chengzhi Jiang, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 4916:
Optics in Health Care and Biomedical Optics: Diagnostics and Treatment
Britton Chance; Mingzhe Chen; Gilwon Yoon, Editor(s)

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