A smelly snapshot of the current state of electronic noses for robots

Robots are getting better at sniffing out smells thanks to improvements in electronic noses (e-noses). A comprehensive review of the state of robot olfaction, published in the journal npj Robotics, has surveyed recent advances in the technology. It highlights how these digital noses are becoming more sensitive and more adept at identifying the source of an odor. This is leading to improvements in a range of areas, from search and rescue missions to detecting hazardous gas leaks.