A capacitive tactile sensor for shear and normal force measurements

This paper describes a new capacitive tactile sensor for shear and normal force measurements. The spatial sampling principle has been applied to measure the capacitance values efficiently and to transfer the spatial capacitance distribution into the time domain. The shear and normal forces are deter...

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Bibliographic Details
Published in:Sensors and actuators. A, Physical Physical, 1992-03, Vol.31 (1), p.115-120
Main Authors: Zhu, F., Spronck, J.W.
Format: Article
Language:English
Subjects:
capacitive sensor
Exact sciences and technology
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Mechanical instruments, equipment and techniques
normal force
Physics
shear force
spatial sampling
tactile sensor
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Summary:This paper describes a new capacitive tactile sensor for shear and normal force measurements. The spatial sampling principle has been applied to measure the capacitance values efficiently and to transfer the spatial capacitance distribution into the time domain. The shear and normal forces are determined by measuring variations in the phase and amplitude of the output signal, respectively. A first experimental model of the sensor shows a resolution of 0.05 N over the range of 10 N for both shear and normal force measurements.
ISSN:0924-4247
1873-3069
DOI:10.1016/0924-4247(92)80089-L