Nanometer resolution fiber-optic-based medical pressure and temperature-measurement system

Rao, Y.J. and Jackson, D.A. (1994) Nanometer resolution fiber-optic-based medical pressure and temperature-measurement system. Nanobiology, 3 (3-4). pp. 211-221. ISSN 0958-3165. (The full text of this publication is not available from this repository)

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Abstract

A prototype, nanometre resolution, single-mode, fibre-based, interferometric medical pressure and temperature sensor system, exploiting low-coherence signal recovery, is demonstrated. These sensors have been designed in such a way that they have similar optical path differences and, hence, the problems associated with multiplexing are greatly reduced. For the pressure sensor, a range to resolution of approximately 6.7 x 10(3):1 and an overall measurement accuracy of better than +/-1% over a pressure range of 0-360 mmHg have been achieved. For the temperature sensor, a measurement resolution of 0.006-degrees-C and a 1% span linearity over a temperature range of 27.3-62.5-degrees-C have been achieved. The performance of both sensors meets or exceeds established medical requirements and the dimensions of the probes are compatible with commercial electric probes, hence this new sensor system is expected to be a practical approach for many medical applications after further engineering.

Item Type: Article
Uncontrolled keywords: biomedical sensors; optical fiber sensors
Subjects: Q Science > QP Physiology (Living systems) > QP517 Biochemistry
Q Science > QH Natural history > QH301 Biology
Q Science > QP Physiology (Living systems) > QP506 Molecular biology
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Optics
Depositing User: O.O. Odanye
Date Deposited: 10 Jun 2009 07:35
Last Modified: 17 Jul 2012 10:08
Resource URI: http://kar.kent.ac.uk/id/eprint/19968 (The current URI for this page, for reference purposes)
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