Document Detail

A tactile sensor for detection of physical properties of human skin in vivo.
MedLine Citation:
PMID:  9680597     Owner:  NLM     Status:  MEDLINE    
A spring loaded tactile sensor with displacement sensing has been evaluated for non-invasive assessment of physical properties, stiffness and elasticity, of human skin in vivo. The tactile sensor consists of a peizoelectric vibrator (61 kHz) with a vibration pickup, electronics and PC with software for measurement of the change in frequency when the sensor is attached to an object. Integrated with the tactile sensor is a displacement sensor that shows the compression of the spring that loads the sensor element against the object during measurement. Under certain conditions (e.g. fixed contact pressure) this change in frequency monitors the acoustic impedance of the object and is related to the stiffness of soft tissue. The experimental results on silicone gum and on healthy Japanese and Swedish women indicated that the instrument was able to detect changes in stiffness and elastic related properties of human skin, related to age, day-to-day variations and application of cosmetics. The instrument was concluded to be easy to handle and suitable for field work.
O A Lindahl; S Omata; K A Angquist
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of medical engineering & technology     Volume:  22     ISSN:  0309-1902     ISO Abbreviation:  J Med Eng Technol     Publication Date:    1998 Jul-Aug
Date Detail:
Created Date:  1998-10-15     Completed Date:  1998-10-15     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7702125     Medline TA:  J Med Eng Technol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  147-53     Citation Subset:  IM    
Department of Biomedical Engineering, University Hospital of Northern Sweden, Umeå, Sweden.
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MeSH Terms
Equipment Design
Middle Aged
Skin Aging / physiology
Skin Physiological Phenomena*
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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