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Micro-Fabricated RTD Based Sensor for Breathing Analysis and Monitoring.

Bilel Neji1, Ndricim Ferko1, Raymond Ghandour1

  • 1College of Engineering and Technology, American University of the Middle East, Kuwait.

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|January 20, 2021
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Summary
This summary is machine-generated.

A novel micro sensor using a resistance temperature detector (RTD) accurately measures breathing frequency. This technology offers a minimally invasive method for respiratory rate monitoring, crucial for patient care.

Keywords:
bridge circuitsfrequency measurementmicro-fabricationrespiratory ratetemperature sensorsthermal resistancewearable sensors

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Area of Science:

  • Biomedical Engineering
  • Sensor Technology
  • Medical Diagnostics

Background:

  • Minimally invasive monitoring of breathing patterns is essential for patient assessment.
  • Accurate respiratory rate determination is critical, especially during respiratory illnesses like COVID-19.
  • Existing methods may have limitations in accuracy or invasiveness.

Purpose of the Study:

  • To design, micro-fabricate, and characterize a novel resistance temperature detector (RTD) based micro sensor.
  • To develop a minimally invasive sensor for breathing analysis and monitoring.
  • To assess the sensor's capability in determining breathing frequency (respiratory rate).

Main Methods:

  • Micro-fabrication of a resistance temperature detector (RTD) based micro sensor.
  • Integration of the RTD into a Wheatstone bridge circuit.
  • Experimental transduction of temperature variations during breathing into electrical signals.

Main Results:

  • The RTD sensor successfully transduced air temperature changes during inhalation and exhalation into measurable electrical signals.
  • Breathing frequency (respiratory rate) was accurately determined from the generated time-varying electrical signal.
  • The Wheatstone bridge configuration reduced sensor output noise and enhanced system accuracy.

Conclusions:

  • The developed RTD micro sensor provides a viable method for minimally invasive breathing analysis.
  • The sensor can accurately determine respiratory rate, offering a valuable tool for healthcare providers.
  • This technology holds potential for improved patient monitoring, particularly in the context of respiratory pandemics.