Document Detail

A photonic wall pressure sensor for fluid mechanics applications.
MedLine Citation:
PMID:  23126796     Owner:  NLM     Status:  Publisher    
In this paper, we demonstrate a micro-optical wall pressure sensor concept based on the optical modes of dielectric resonators. The sensing element is a spherical micro-resonator with a diameter of a few hundred micrometers. A latex membrane that is flush mounted on the wall transmits the normal pressure to the sensing element. Changes in the wall pressure perturb the sphere's morphology, leading to a shift in the optical modes. The wall pressure is measured by monitoring the shifts in the optical modes. Prototype sensors with polydimethylsiloxane micro-spheres are tested in a steady two-dimensional channel flow and in a plane wave acoustic tube. Results indicate sensor resolutions of ∼20 mPa and bandwidth of up to 2 kHz.
M Manzo; T Ioppolo; U K Ayaz; V Lapenna; M V Ötügen
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Publication Detail:
Journal Detail:
Title:  The Review of scientific instruments     Volume:  83     ISSN:  1089-7623     ISO Abbreviation:  Rev Sci Instrum     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-11-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0405571     Medline TA:  Rev Sci Instrum     Country:  -    
Other Details:
Languages:  ENG     Pagination:  105003     Citation Subset:  -    
Southern Methodist University, Dallas, Texas 75205, USA.
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