Title

Silicon carbide-based remote wireless optical pressure sensor

Authors

Authors

N. A. Riza; F. Ghauri;F. Perez

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

IEEE Photonics Technol. Lett.

Keywords

optical sensors; pressure sensors; Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

Proposed is a silicon carbide (SiC) weak-lensingeffect-based wireless optical sensor that allows safe, repeatable, and accurate pressure measurement suitable for harsh environments. This completely passive front-end sensor design uses a remoted free-space optical beam that targets a single crystal SiC chip fitted as an optical window within a pressure capsule. With increasing differential capsule pressure, the SiC chip forms a weak convex mirror with a changing focal length. By monitoring the chip reflected light beam magnification, pressure in the capsule is determined. Using a 633-nm wavelength laser beam, the proposed sensor is experimentally tested at room temperature for 0- to 600-psi (0-41 atm) differential pressures and a remoting distance of 2.5 m.

Journal Title

Ieee Photonics Technology Letters

Volume

19

Issue/Number

5-8

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

504

Last Page

506

WOS Identifier

WOS:000245768200082

ISSN

1041-1135

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