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Proceedings Paper

Reflective optical sensor system for measurement of intracranial pressure
Author(s): Behbood Zoghi; Sohi Rastegar
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Paper Abstract

This paper describes a novel optical fiber intracranial pressure (ICP) sensor system that uses a reflective fiber optic displacement sensor to measure hydrostatic pressure. A reference reflection from a mirror incorporated into the fiber is used in signal processing to eliminate the effects of power fluctuations, loss in connector, and splices in the fiber. This sensing technique exhibits a high degree of sensitivity and linearity, and is less susceptible to environmental perturbations than current intensity modulating techniques. Experimental results are presented for measurements taken with and without an anti-reflection (AR) coating on the fiber tip facing the sensor mirror. These measurements indicate an improved dynamic range of operation for this sensor.

Paper Details

Date Published: 1 July 1991
PDF: 9 pages
Proc. SPIE 1420, Optical Fibers in Medicine VI, (1 July 1991); doi: 10.1117/12.43868
Show Author Affiliations
Behbood Zoghi, Texas A&M Univ. (United States)
Sohi Rastegar, Texas A&M Univ. (United States)

Published in SPIE Proceedings Vol. 1420:
Optical Fibers in Medicine VI
Abraham Katzir, Editor(s)

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