DEVELOPMENT OF MEDICAL PRESSURE AND TEMPERATURE SENSORS EMPLOYING OPTICAL-SPECTRUM MODULATION

被引：81

作者：

WOLTHUIS, RA ^{[1
]}

MITCHELL, GL ^{[1
]}

SAASKI, E ^{[1
]}

HARTL, JC ^{[1
]}

AFROMOWITZ, MA ^{[1
]}

机构：

[1] UNIV WASHINGTON,SEATTLE,WA 98195

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1991年 / 38卷 / 10期

关键词：

D O I：

10.1109/10.88443

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Fiber optic Fabry-Perot sensors have been developed whose optical reflectance varies with optical cavity depth (pressure) or with change in a material's refractive index (temperature). These sensors employ a unique combination of features: they are interrogated by an LED; they are designed to operate within a single reflectance cycle; and their returned light is analyzed by a dichroic ratio technique. The sensors use a step index glass fiber and are relatively insensitive to absolute light levels and fiber bending. They have an expanded linear operating range and can be built for low cost disposable applications. Sensor performance meets or exceeds established medical requirements.

引用

页码：974 / 981

页数：8