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Sensitivity of a Single Coil Electromagnetic Sensor for Non-contact Monitoring of Breathing
 

Summary: Sensitivity of a Single Coil Electromagnetic Sensor for Non-contact
Monitoring of Breathing
Rosalyn Seeton and Andy Adler
Abstract-- We design and analyse a flexible non-contact
electromagnetic sensor for monitoring breathing. This paper
presents the sensor design and the theoretical model for the
expected sensitivity from which we optimize design components.
The primary application of this device is in non-invasive sleep
monitoring and it has the potential to be useful for detection
of both adult and infant apnea. The conductivity changes of
the lungs during breathing are monitored by inducing eddy
currents within them. The sensor consists of a small coil that
acts as both a transmitter and a receiver. The theoretical
sensitivity of the sensor to breathing changes is calculated
and corresponds within the assumptions of the model to the
measured results.
I. INTRODUCTION
There is significant interest in monitoring breathing during
sleep to detect and measure sleep apnea. Adult sleep apnea
is a widespread condition that decreases sleep quality and

  

Source: Adler, Andy - Department of Systems and Computer Engineering, Carleton University

 

Collections: Computer Technologies and Information Sciences