Manufacturing Industry
Nanotubes as pressure sensors.(NANOMATERIALS)
Advanced Ceramics Report, December, 2007
Blocks of carbon nanotubes can be used to create effective and powerful pressure sensors, according to a study by researchers at Rensselaer Polytechnic Institute, USA.
By using nanotubes' electrical and mechanical properties, researchers repeatedly squeezed a 3 mm nanotube block and discovered it was highly suitable for potential applications as a pressure sensor.
No matter how many times or how hard they squeezed the block, it exhibited a constant, linear relationship between how much force was applied and electrical resistance.
Postdoctoral researcher at Rensselaer and author of the study, Subbalakshmi Sreekala, says "Because of the linear relationship between load and stress, it can be a very good pressure sensor."
A sensor...
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