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Four-legged, dog-like robot ‘sniffs’ hazardous gases in inaccessible environments
Nightmare material or truly man’s best friend? A team of researchers equipped a dog-like quadruped robot with a mechanized arm that takes air samples from potentially treacherous situations, such as an abandoned building or fire. The robot dog walks samples to a person who screens them for potentially hazardous compounds, says the team that published its study in ACS’ Analytical Chemistry. While the system needs further refinement, demonstrations show its potential value in dangerous conditions.
The researchers test-drove their four-legged “lab” through a variety of inaccessible environments, including a garbage disposal plant, sewer system, gasoline fireground and chemical warehouse, to sample the air for hazardous VOCs. While the robot had trouble navigating effectively in rainy and snowy weather, it collected air samples and returned them to the portable mass spectrometer (MS) for onsite analysis in less time than it would take to transfer the samples to an off-site laboratory — and without putting a technician in a dangerous environment. The researchers say the robot-MS system represents a “smart” and safer approach for detecting potentially harmful compounds.
The authors acknowledge funding from the Guangzhou Science and Technology Program and the National Natural Science Foundation of China.