October 14, 2014
Dr. Kristen Dorsey
UC President's Postdoctoral Fellow, Electrical and Computer Engineering Department, UC San Diego
October 14, 2014 | 12:30 to 01:30 | 540 Cory Hall
Host: Kris Pister
Metal oxide gas sensors are one solution to portable air quality monitoring. Their low unit price, small form factor and response to several criteria pollutants make them a viable future. When exposed to a target gas, the conductivity of the metal oxide layer shifts, leading to a sensor response that is easily measured by readout circuitry. However, these sensors exhibit cross-response to a wide variety of weather factors, rendering them unstable in outdoor measurements. Atmospheric pressure, wind, and humidity all contribute to the future of metal oxide sensors as portable air quality monitors.
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