Document Detail

A silicon-based tactile sensor for finger-mounted applications.
MedLine Citation:
PMID:  9473838     Owner:  NLM     Status:  MEDLINE    
This paper presents a silicon-based force sensor packaged in a flexible package and describes the sensors performance on human subjects. The sensing element consists of a circular silicon diaphragm (200-micron thick with a 2-mm radius) over a 10-micron sealed cavity with a solid Torlon dome providing force-to-pressure transduction to the diaphragm. Two dome heights (0.5 and 1.5 mm) were compared. The sensor with the taller dome showed improved sensitivity. Dynamic calibration and tracking experiments are performed with the sensor mounted on the dominant thumb of five human subjects. Both force and loading direction are statistically significant (P < 0.05). Subject variability accounted for 8.7% of the variance, while loading direction accounted for 1.9% of the variance. Average errors for the tracking experiment range from-2.8 to 1.0 N and are subject dependent. Three out of four subjects showed increasing negative error with increasing load.
D J Beebe; D D Denton; R G Radwin; J G Webster
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  IEEE transactions on bio-medical engineering     Volume:  45     ISSN:  0018-9294     ISO Abbreviation:  IEEE Trans Biomed Eng     Publication Date:  1998 Feb 
Date Detail:
Created Date:  1998-03-10     Completed Date:  1998-03-10     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0012737     Medline TA:  IEEE Trans Biomed Eng     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  151-9     Citation Subset:  IM    
Department of Electrical and Computer Engineering, Beckman Institute, University of Illinois at Urbana-Champaign 61801, USA.
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MeSH Terms
Analysis of Variance
Equipment Design
Hand Strength / physiology
Materials Testing
Middle Aged
Monitoring, Physiologic / instrumentation*
Sensitivity and Specificity
Stress, Mechanical
Touch / physiology*
Reg. No./Substance:

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