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A Picowatt Powered Carbon-Nanotube-Based Thermal Convective Motion Sensor

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2 Author(s)
Yu Zhang ; Dept. of Mech. & Autom. Eng., Chinese Univ. of Hong Kong, Hong kong, China ; Wen Li

We report a thermal convective motion sensor with carbon nanotubes (CNTs) as sensing elements. This sensor uses CNT bundles manipulated by dielectrophresis as both, a heater and thermal detector. This sensor can respond to sinusoidal vibrations, and requires only several picowatts to operate. We have thus far demonstrated that this CNT-based motion sensor can detect linear acceleration as low as 0.02 m/s, and respond to at least 10Hz vibrations.

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Nanotechnology, IEEE Transactions on  (Volume:10 ,  Issue: 5 )