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.
Patent No.:
Date of Patent:
Aug. 16, 2016
Filed:
Apr. 02, 2012
Tatsuya Yabe, Tokyo, JP;
Yoshiyuki Tamura, Tokyo, JP;
Tatsuya Yabe, Tokyo, JP;
Yoshiyuki Tamura, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Abstract
A moisture concentration detecting device including a gas chamber; a pair of porous electrodes facing each other in the gas chamber; a solid electrolyte membrane sandwiched between the electrodes; a case which covers the electrodes and the solid electrolyte membrane and on a surface of which a pleated portion is provided; an impedance measuring circuit measuring an AC impedance between the electrodes by applying an AC voltage to the electrodes; a storage device storing therein conversion information for converting an AC impedance between the electrodes into a moisture concentration in the insulating gas; and a computing unit obtaining a moisture concentration in the insulating gas from a measured value of the AC impedance by referring to the conversion information stored in the storage device with respect to the measured value of the AC impedance input from the impedance measuring circuit.