National Institute for Materials Science

National Institute of Materials Science

Yihua Gao

Yoshio Bando

Dmitri Golberg

Tadao Sato

Zongwen Liu

By preliminarily measuring the gallium temperature and the length change of a temperature sensing element comprising a carbon nanotube having a continuous column of gallium contained therein, then heating the temperature sensing element installed in a subject to increase the temperature thereof in air, removing the temperature sensing element subjecting to measure the gallium length, and substituting the measured gallium length in a formula, the temperature is measured accurately over a wide temperature range in a micrometer size or less environment.

Temperature measuring method using micro temperature sensing element

A novel nano thermometer, which can be used for temperature measurement of a wide temperature range, in a micrometer size environment, and a method for producing the same. The nano thermometer is a carbon nanotube filled with a continuous columnar gallium, which enables measurement of environmental temperature by length change of the columnar gallium, and is produced by mixing GaOpowder and carbon powder uniformly, and performing heat treatment for this mixed powder at a temperature range of 1200 to 1400&#xb0; C. under an inert gas flow.

Growing community of inventors

Ibaraki, Japan

Yihua Gao