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:
Dec. 31, 2013
Filed:
Jan. 10, 2011
Andrea Cavallini, San Pietro in Casale, IT;
Fabio Ciani, Forlì, IT;
Stefano Serra, San Vittore Olona, IT;
Giancarlo Montanari, Casalecchio di Reno, IT;
Andrea Cavallini, San Pietro in Casale, IT;
Fabio Ciani, Forlì, IT;
Stefano Serra, San Vittore Olona, IT;
GianCarlo Montanari, Casalecchio di Reno, IT;
Techimp Technologies S.R.L., Bologna, IT;
Abstract
A method for deriving the concentration of a gas dissolved in an electrical insulating oil () comprises the following steps:—preparing a membrane () permeable to the gas, interposed between a container () of the oil () and a measuring chamber () that receives a part of the gas through the membrane ();—measuring the value of gas concentration in the measuring chamber ();—deriving an estimated value of the concentration of the gas in the oil () as a function of the measured value,—the measuring step comprising taking at successive measuring instants a plurality of measurements of the values of gas concentration in the measuring chamber ();—the deriving step comprising calculating the estimated value of gas concentration in the oil (), at an instant selected from said measuring instants, according to a non-linear function of the values measured at the selected measuring instant and at one or more of the measuring instants preceding the one selected.