Reflective optical sensor system for measurement of intracranial pressure

Behbood Zoghi; Sohi Rastegar

doi:10.1117/12.43868

1 July 1991 Reflective optical sensor system for measurement of intracranial pressure

Behbood Zoghi, Sohi Rastegar

Proceedings Volume 1420, Optical Fibers in Medicine VI; (1991) https://doi.org/10.1117/12.43868
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

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.

Citation Download Citation

Behbood Zoghi and Sohi Rastegar "Reflective optical sensor system for measurement of intracranial pressure", Proc. SPIE 1420, Optical Fibers in Medicine VI, (1 July 1991); https://doi.org/10.1117/12.43868

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