Fig. 5: In situ pressure monitoring using the MAWPS.

a Relative impedance changes response of the MAWPS mounted on the mask for breath monitoring. b Relative impedance changes response of the MAWPS for perception of object surface roughness. c Real-time output relative impedance changes of the MAWPS corresponding to the process of grasping and releasing a plastic ball. d The relative impedance changes of the MAWPS in response to the different wind directions.