Abstract
This paper presents a comparative study of pressure-sensitive sensor materials being suitable for monitoring purposes in pressure mapping sensor networks. Four sensor materials working on piezoresistive, piezoelectric, quasi-piezoelectric and capacitive principle have been discussed including the built-up, the working principle, the manufacturing and the most important properties. Additionally, the electromechanical models of the sensor elements have been introduced and verified by comparing the modelled and measured sensor characteristics. The studied materials were compared and evaluated using a decision matrix with respect to the applicability as a thin and flexible pressure sensor unit in a competitive large-area floor sensor network.
Highlights
A pressure mapping system is an array of sensors being arranged in a two-dimensional pattern that measures interface pressure, which is defined as the pressure that occurs at the interface between the body and the support surface.Pressure mapping is an innovative technology providing a solution for a wide range of applications that has been available for many years but is still not widespread owing to the high prices of the used sensor materials
This paper presents a comparative study of pressure-sensitive sensor materials being suitable for monitoring purposes in pressure mapping sensor networks
1 Introduction A pressure mapping system is an array of sensors being arranged in a two-dimensional pattern that measures interface pressure, which is defined as the pressure that occurs at the interface between the body and the support surface
Summary
A pressure mapping system is an array of sensors being arranged in a two-dimensional pattern (usually in matrix structure) that measures interface pressure, which is defined as the pressure that occurs at the interface between the body and the support surface.Pressure mapping is an innovative technology providing a solution for a wide range of applications that has been available for many years but is still not widespread owing to the high prices of the used sensor materials. The main objective of the presented study was to find a suitable pressure-sensitive sensor material for a competitive and universal floor sensor network [7], which provides a platform technology for a wide range of medical, home automation and security applications.
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