Multifunctional ceramic sensor

Details Multifunctional ceramic sensor Multifunctional ceramic sensor

1986-04-01

1988-12-27

Pellinen, A. D.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

Semiconductors for nonelectrical property

73 23, 73 29, 324 61R, 324 65R, G01N 2712

Patent

active

047943238

ABSTRACT:
There is provided a multifunctional ceramic sensor and technology which is capable of detecting temperature, humidity and gas with a single sensing element made of p-type metal-oxide porous ceramic semiconductor Ba(Ti.sub.1-x Sn.sub.x)O.sub.3 (x=0.05-0.5). The sensing element is prepared by special ceramic technique which is formed on porosity and sintered on green pack that form a kind of network of capillary pipe with tree-like structure in three dimensions. The present invention posses advantages are as follows: high sensitivity, fast response time, small hysteresis, good separability, high reproducibility and long durability. The multifunctional ceramic sensor not only use for air conditioners, driers, cookers and microwave ovens but also use to detect or control the temperature-humidity-gases for food stuff, tobacco, leather, textile, print, dye and petrochemical industry.

REFERENCES:
patent: 4378691 (1983-04-01), Terada et al.
Chemical Abstracts, vol. 105, #16260g, 1986.

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