Journal
ACS OMEGA
Volume 7, Issue 47, Pages 42926-42938Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.2c05017
Keywords
-
Categories
Funding
- Department of Science and Technology, Government of India
- IIT Madras
- Council of Science and Industrial Research (CSIR), Government of India
Ask authors/readers for more resources
A frugal humidity sensor has been developed to detect changes in the humidity of exhaled breath. The sensor is made using a cloth as a substrate, with a humidity-sensitive conducting polymer formed on it. Screen-printed silver electrodes and conducting threads connect the sensor to the measurement circuit. The sensor's response time allows for differentiation between fast, normal, and slow breathing. An Android-based mobile application and time series classification algorithm have been used for data collection and analysis. The sensor has also been integrated into a face mask to create a smart mask for monitoring breathing patterns.
A frugal humidity sensor that can detect changes in the humidity of exhaled breath of individuals has been fabricated. The sensor comprises a humidity-sensitive conducting polymer that is in situ formed on a cloth that acts as a substrate. Interdigitated silver electrodes were screen-printed on the modified cloth, and conducting threads connected the electrodes to the measurement circuit. The sensor's response to changing humidity was measured as a voltage drop across the sensor using a microcontroller. The sensor was capable of discerning between fast, normal, and slow breathing based on the response time. A response time of similar to 1.3 s was observed for fast breathing. An Android-based mobile application was designed to collect sensor data via Bluetooth for analysis. A time series classification algorithm was implemented to analyze patterns in breathing. The sensor was later stitched onto a face mask, transforming it into a smart mask that can monitor changes in the breathing pattern at work, play, and sleep.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available