The design, micro-fabrication, and characterization of a resistance temperature detector (RTD) based micro sensor for minimally invasive breathing analysis and monitoring is presented. Experimental results demonstrate that the change in air temperature while inhaling and exhaling can be transduced into a time varying electrical signal, which is subsequently used to determine the breathing frequency (respiratory rate). The RTD is placed into a Wheatstone bridge to simultaneously reduce the sensor’s output noise and improve overall system accuracy. The proposed design could potentially aid health care providers in the determination of respiratory rates, which is of critical importance during the current COVID-19 pandemic.
【저자키워드】 wearable sensors, bridge circuits, respiratory rate, frequency measurement, micro-fabrication, thermal resistance, temperature sensors, 【초록키워드】 Health care, COVID-19 pandemic, Health, Accuracy, temperature, Care, Critical, Analysis, respiratory rate, fabrication, respiratory rates, characterization, Wheatstone bridge, experimental results, breathing frequency, invasive, IMPROVE, determine, reduce, Experimental result, electrical, transduced, 【제목키워드】 breathing, sensor, monitoring,