The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 27, 1988

Filed:

Apr. 01, 1986
Applicant:
Inventors:

Zhi-Gang Zhou, Beijing, CN;

Zhong-Tai Zhang, Beijing, CN;

Gang Zhao, Beijing, CN;

Assignee:

Tsinghua University, Beijing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
324 715 ; 73 23 ; 73 29 ; 324 / ; 324 / ;
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.


Find Patent Forward Citations

Zhou, Zhi-Gang. (1988). Multifunctional ceramic sensor (U.S. Patent No. 4794323). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4794323

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