Document Detail

Optofluidic pressure sensor based on interferometric imaging.
MedLine Citation:
PMID:  21042364     Owner:  NLM     Status:  In-Process    
We present a chip-scale optofluidic interferometric sensor for measuring liquid pressure based on an imaging method. The chip was constructed with a polymer by multilayer soft lithography. It consists of a flexible air gap optical cavity, which, upon illumination by monochromatic light, generates interference patterns that depend on pressure. The pressure was measured by imaging and analyzing the interference patterns. We also employed a pattern recognition algorithm that significantly simplified the calculation and enhanced the measurement reliability. This pressure sensor was demonstrated with a working range of 0-22 psi and an accuracy of ±1.4% of full scale when temperature stabilized.
Wuzhou Song; Demetri Psaltis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics letters     Volume:  35     ISSN:  1539-4794     ISO Abbreviation:  Opt Lett     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708433     Medline TA:  Opt Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3604-6     Citation Subset:  -    
Optics Laboratory, School of Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
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