Humidity Sensor Characteristics of Woodceramics |
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Authors: | Kiyokazu Kasai Kiyotaka Shibata Koji Saito Toshihiro Okabe |
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Affiliation: | (1) Aomori Polytechnic College, Goshogawara, 037, Japan;(2) Industrial Research Institute of Aomori Prefecture, Hirosaki, 036, Japan |
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Abstract: | The humidity sensor characteristics of Woodceramics were investigated. The Woodceramics used in this experiment were prepared at 650–900°C. The size of specimens selected was 1 × 1 × 10 mm . One was used as-cut and the other was polished. Above 700°C, the resistance of the specimen was below 50 and the decrease of resistance with increasing relative humidity was small. The specimen prepared at 650°C had a resistance of about 1 k. 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. |
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Keywords: | woodceramics porous carbon adsorption humidity sensor |
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