HOT WIRE ANEMOMETER

摘要

A hot wire anemometer utilizing metal-coated carbon naonotube wire includes a detecting element, a signal enlarging element, a signal dealing element, and a display divice. The hot wire of the detecting element includes a nanotube composite wire. The carbon nanotube composite wire includes a carbon nanotube wire and a metal layer. The carbon nanotube wire includes a plurality of carbon nanotubes spirally arranged along an axial direction of the carbon nanotube wire. The diameter of the carbon nanotube wire ranges from 50 nanometers to 30 micrometers. The rate of twist of the carbon nanotube wire ranges from 250 t/cm to 300 t/cm. The metal layer is coated on a surface of the carbon nanotube wire. The thickness of the metal layer ranges from 50 nanometers to 5 micrometers.

主权项

1. A hot wire anemometer comprising:
a detecting element; a signal enlarging element; and a signal processing element; wherein the detecting element, and the signal enlarging element and the signal processing element are electrically connected to each other; the detecting element comprises a hot wire; the hot wire comprises a carbon nanotube composite wire; the carbon nanotube composite wire comprises a carbon nanotube wire and a metal layer; the carbon nanotube wire comprises a plurality of carbon nanotubes spirally arranged along an axial direction of the carbon nanotube wire, a diameter of the carbon nanotube wire ranges from about 50 nanometers to about 30 micrometers, a twist of the carbon nanotube wire ranges from about 10 t/cm to about 300 t/cm; and the metal layer is coated on a surface of the carbon nanotube wire, and a thickness of the metal layer ranges from about 50 nanometers to about 5 micrometers.