National Institute for Materials Science

Tomoko Ohki

Toshihide Nabatame

Toyohiro Chikyo

Jin Kawakita

Akihiko Ohi

Tadashi Shinohara

Naoki Ikeda

The present invention is to provide a small-sized dryness/wetness responsive sensor that detects a galvanic current with a high sensitivity as a principle of operation. According to one embodiment of the present invention, a dryness/wetness responsive sensor comprises a thin wire made of a first metal and a thin wire made of a second metal, the second metal is different from the first metal, the thin wire of the first metal and the thin wire of the second metal are disposed in juxtaposition with each other on an insulating substrate, and a surface state of a part between the thin wire of the first metal and the thin wire of the second metal is hydrophilic or hydrophobic.

Dryness/wetness responsive sensor

A dryness/wetness responsive sensor having decreased size, and improved sensitivity and responsiveness. The present invention comprises a thin wire of a first metal and a thin wire of a second metal, which is different from the first metal, wherein the thin wires run in juxtaposition with each other on an insulating substrate, and wherein the spacing between the first thin wire and the second thin wire is in the range of 5 nm or more and less than 20 &#x3bc;m.

Dryness/wetness responsive sensor having first and second wires spaced 5 nm to less than 20 &#x3bc;m apart

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Ibaraki, Japan

Tomoko Ohki