Fiberoptic Temperature Sensing For Biomedical Applications

D. A. Christensen

doi:10.1117/12.945263

21 June 1988 Fiberoptic Temperature Sensing For Biomedical Applications

D. A. Christensen

Author Affiliations +

Proceedings Volume 0906, Optical Fibers in Medicine III; (1988) https://doi.org/10.1117/12.945263
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

Fiberoptic temperature sensors have found valuable application in several areas of research and treatment in biology and medicine. These include tissue monitoring during electromagnetic heating for cancer therapy, catheter-tip sensors as part of multi-purpose fiberoptic probes, patient monitoring during magnetic resonance imaging (MRI), and microwave biohazards studies. The advantage of fiberoptic probes compared to more conventional temperature sensors such as thermistors or thermocouples lies in the nonconductive property of the glass or plastic fibers used. This avoids shock hazard to the patient, and perturbation of the readings in electromagnetic environments. Fiberoptic temperature sensors may be classified into one of three general categories: 1) intensity, 2) wavelength, and 3) time-domain. Types of optical sensors which have been successfully employed with fibers include fluorescent materials, semiconductors, birefringent crystals, and Fabry-Perot interferometers. An example of a wavelength-based sensor is described herein; it is a new technique based upon wavelength shifts in a GaAs sensor using broadband illumination and a fast-scanning spectrometer, and appears useful over the biological temperature range of 25-50°C.

Citation Download Citation

D. A. Christensen "Fiberoptic Temperature Sensing For Biomedical Applications", Proc. SPIE 0906, Optical Fibers in Medicine III, (21 June 1988); https://doi.org/10.1117/12.945263

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE