Title :
A highly sensitive flexible pressure and shear sensor array for measurement of ground reactions in pedestrian navigation
Author :
Surapaneni, R. ; Park, K. ; Suster, M.A. ; Young, D.J. ; Mastrangelo, C.H.
Author_Institution :
Univ. of Utah, Salt Lake City, UT, USA
Abstract :
We present the design, fabrication and testing of a high-resolution ground reaction sensor cluster (GRSC) as an auxiliary sensor for pedestrian navigation. The GRSC consists of a flexible high-density array of compressible, elastomeric capacitive pressure and two-dimensional shear sensors. When placed at the heel of a boot, the 169-cell GRSC measures detailed information about the position and motion of the line of contact with the ground. The GRSC uses fingered capacitive sensors that provide a large sensitivity to shear stress. The GRSC sensors have pressure and shear sensitivities of 0.44 MPa-1 and 0.76 MPa-1, respectively.
Keywords :
capacitive sensors; navigation; pressure measurement; pressure sensors; sensor arrays; 169-cell GRSC; elastomeric capacitive pressure sensor; fingered capacitive sensors; flexible high-density array; ground reaction measurement; high sensitive flexible pressure sensor; high-resolution ground reaction sensor cluster; pedestrian navigation; two-dimensional shear sensor array; Arrays; Capacitance; Capacitors; Electrodes; Fingers; Sensitivity; Sensors; GRSC; Pedestrian navigation; flexible pressure and shear sensors;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-0157-3
DOI :
10.1109/TRANSDUCERS.2011.5969166
