Patent ID: 9696335
Date: 2017-07-04
CPC Classifications: G01P

Claim:
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.