Title
A Magnetoresistive Tactile Sensor for Harsh Environment Applications.
Abstract
A magnetoresistive tactile sensor is reported, which is capable of working in high temperatures up to 140 degrees C. Hair-like bioinspired structures, known as cilia, made out of permanent magnetic nanocomposite material on top of spin-valve giant magnetoresistive (GMR) sensors are used for tactile sensing at high temperatures. The magnetic nanocomposite, consisting of iron nanowires incorporated into the polymer polydimethylsiloxane (PDMS), is very flexible, biocompatible, has high remanence, and is also resilient to antagonistic sensing ambient. When the cilia come in contact with a surface, they deflect in compliance with the surface topology. This yields a change of the GMR sensor signal, enabling the detection of extremely fine features. The spin-valve is covered with a passivation layer, which enables adequate performance in spite of harsh environmental conditions, as demonstrated in this paper for high temperature.
Year
DOI
Venue
2016
10.3390/s16050650
SENSORS
Keywords
Field
DocType
magnetic nanocomposite,giant magnetoresistance,high temperature,harsh environment,nanowires,cilia,tactile sensor,spin-valve
Remanence,Nanotechnology,Polydimethylsiloxane,Spin valve,Nanocomposite,Engineering,Giant magnetoresistance,Passivation,Nanowire,Tactile sensor
Journal
Volume
Issue
ISSN
16
5.0
1424-8220
Citations 
PageRank 
References 
1
0.35
0
Authors
5
Name
Order
Citations
PageRank
Ahmed Alfadhel151.52
Mohammed Asadullah Khan251.86
Susana Cardoso3248.02
d c leitao441.25
jurgen kosel51310.33