Humidity Sensor Characteristics of Woodceramics

被引：32

作者：

Kasai, Kiyokazu ^{[1
]}

Shibata, Kiyotaka ^{[1
]}

Saito, Koji ^{[2
]}

Okabe, Toshihiro ^{[2
]}

机构：

[1] Aomori Polytech Coll, Goshogawara 037, Japan

[2] Ind Res Inst Aomori Prefecture, Hirosaki, Aomori 036, Japan

来源：

JOURNAL OF POROUS MATERIALS | 1997年 / 4卷 / 04期

关键词：

woodceramics; porous carbon; adsorption; humidity sensor;

D O I：

10.1023/A:1009677306740

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The humidity sensor characteristics of Woodceramics were investigated. The Woodceramics used in this experiment were prepared at 650-900 degrees C. The size of specimens selected was 1 x 1 x 10 mm. One was used as-cut and the other was polished. Above 700 degrees C, the resistance of the specimen was below 50 Omega and the decrease of resistance with increasing relative humidity was small. The specimen prepared at 650 degrees C had a resistance of about 1 k Omega. The resistance of as-cut specimens decreased with increase in relative humidity, but that of the polished specimen did not change significantly. The difference between as-cut and polished samples was explained by the differences in surface micro-structure.

引用

页码：277 / 280

页数：4