Design and Construct Miniaturized Biosensor/Transmitter System
Abstract
We devised a set of sensors for the vital signs of troops with each sensor providing radio transmission to a personal receiver unit. The project is part of an overall program with the sensor development at the University of Tennessee and other work done under separate contract at Oak Ridge National Laboratory. Device prototypes were constructed as application-specific integrated circuits (ASICs), each containing a radio transmitter of 1-2 meter range. These are termed "telesensors". A telesensor chip for body temperature was fabricated and demonstrated to transmit temperature with an accuracy of 0.1 deg C using spread-spectrum radio transmission. Wireless pulse-rate signals were also demonstrated. The body-temperature telesensor is sufficiently small (3 mm X 3 mm) to fit within the ear canal. The chip developed needed external components which could only be eliminated with further work. Benchtop systems for blood-pressure and respiration were demonstrated with wireless radio transmission. The receiver unit is composed of discrete components and interfaced to a laptop computer. A receiver with long-range transmission was unfinished.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1999
- Accession Number
- ADA368230
Entities
People
- Thomas L. Ferrell
Organizations
- University of Tennessee