RT Journal Article T1 The Multi-Chamber Electronic Nose--an improved olfaction sensor for mobile robotics A1 González-Jiménez, Antonio Javier A1 González-Monroy, Javier A1 Blanco-Claraco, José Luis K1 Robótica AB One of the major disadvantages of the use of Metal Oxide Semiconductor (MOS) technology as a transducer for electronic gas sensing devices (e-noses) is the long recovery period needed after each gas exposure. This severely restricts its usage in applications where the gas concentrations may change rapidly, as in mobile robotic olfaction, where allowing for sensor recovery forces the robot to move at a very low speed, almost incompatible with any practical robot operation. This paper describes the design of a new e-nose which overcomes, to a great extent, such a limitation. The proposed e-nose, called Multi-Chamber Electronic Nose (MCE-nose), comprises several identical sets of MOS sensors accommodated in separate chambers (four in our current prototype), which alternate between sensing and recovery states, providing, as a whole, a device capable of sensing changes in chemical concentrations faster. The utility and performance of the MCE-nose in mobile robotic olfaction is shown through several experiments involving rapid sensing of gas concentration and mobile robot gas mapping. PB MDPI YR 2011 FD 2011-06-07 LK https://hdl.handle.net/10630/34597 UL https://hdl.handle.net/10630/34597 LA eng NO Gonzalez-Jimenez, J.; Monroy, J.G.; Blanco, J.L. The Multi-Chamber Electronic Nose—An Improved Olfaction Sensor for Mobile Robotics. Sensors 2011, 11, 6145-6164. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 24 ene 2026