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:
Apr. 05, 1994
Filed:
Mar. 11, 1992
Yukinobu Nishimura, Himeji, JP;
Nobutake Taniguchi, Himeji, JP;
Setsuhiro Shimomura, Himeji, JP;
Kouji Tanimoto, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of processing signal for a thermal type flow sensor having a temperature dependence resistance employing platinum and the like and a holding member made of alumina for holding it so as to compensate for response delay when fluid flow is changed, in which, when the fluid flow is maintained in a stationary state, the so-called equilibrium state, by steps of setting in advance the relation between a flow related value which changes according to flow change and a first operational value showing the temperature characteristic of the holding member which changes according to flow so as to make the flow related value as a parameter, calculating the first operational value from the flow related value when flow is detected in accordance with the predetermined relation, comparing the calculated first operational value with the second operational value which is set in relation with the first operational value, correcting the second operational value so that it approximates the first operational value according to the compared result, calculating a compensating factor by a predetermined operational formula with the calculated first operational value and the corrected second operational value, and compensating the compensating factor by multiplying it by the detected flow.