B.O. bot Christopher Thomas EEL5666 IMDL Fall 2008 Date: 09/16/2008 4/13/2019
Project Overview Robot will search a room for “offensive” odors If it detects a recognized odor, it will attempt to neutralize it with some commercial spray. 4/13/2019
Project Overview Will have to detect chemicals in the air Some Available Electrochemical Sensors Hydrogen Sulfide Methane Ammonia Chose Ammonia for its ease in testing. Hydrogen Sulfide is toxic and Methane is difficult to transport Humans can sense Ammonia at around 50ppm 4/13/2019
Sensors Found one supplier that sells their sensor for less that $250. Electrochemical Sensors are more sensitive to chemicals (around a few ppm) but have a very short lifespan Figaro sensors - TGS826 Metal Oxide Semiconductor
Sensors 4/13/2019
Future Work Design Platform Begin Testing TGS826 ASAP Begin looking at mechanism to spray Finish ordering sensors and servos