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Single Wall NanoTube Acoustic Velocity Sensor

IP.com Disclosure Number: IPCOM000018621D
Publication Date: 2003-Jul-28

Publishing Venue

The IP.com Prior Art Database

Abstract

An acoustic velocity sensor is disclosed that employs a newly reported effect. The effect is the generation of a voltage when a dielectric fluid flows along the axis of a bundle of single walled nano tubes. Reported response times suggest that the sensor should easily respond to frequencies of 1,000 hertz or above and that it will have a noise floor at or below 40 decibels relative to a micro Pascal in sea water. The sensor will have a logarithmic response to acoustic intensity over nearly eight decades of sound pressure level. This can be either an advantage or a disadvantage depending on the application. Modern electronics can easily transform the response to be linear.